Changes In Mechanical Strength Research Articles

Cracking and improved wettability of coal through liquid CO2 cyclic cold soaking for dust prevention

To solve the problem of water injection in low–porosity and low–permeability coal seams, a new idea of liquid CO2 cyclic cold soaking to improve the water absorption and wetting efficiency of coal is proposed. The evolution of the pore structure and mechanical properties of coal were studied using low–field nuclear magnetic resonance and uniaxial compression tests. The wettability and water absorption of coal before and after the experiment were determined using contact angle and water absorption tests. The results show that as the number of cycles increases, the effective porosity of coal increases significantly, the mechanical strength is weakened, and the compressive strength and elastic modulus decrease. The wettability and water absorption of coal samples were significantly improved by liquid CO2 treatment, and the changes in porosity, mechanical strength, and water absorption wettability of coal samples in the saturated group were more obvious compared to dry coal. This paper lays a theoretical and experimental foundation for the development of a new technology for coal seam water injection dust prevention.

Changes in the Physical Properties of the Cotton Linter Paper Irradiated by a Gamma Ray and Electron Beam

The effects of gamma ray and electron beam irradiation on paper disinfection were evaluated. The paper was irradiated with 10-100 kGy gamma rays and electron beams which were higher than the recommended dose for paper disinfection. After irradiation, the mechanical properties and color of the paper and the cellulose chain scission rate were evaluated. In the case of paper strength, it decreased after 25 kGy irradiation, whereas the discoloration of paper appeared after 10 kGy irradiation. It cannot confirm the effect on paper only with changes in mechanical strength and color in the recommended range of 0.5-10 kGy for actual paper disinfection treatment. On the other hand, even with 10 kGy irradiation, the degree of polymerization of cellulose paper was reduced by ~50%. Cotton linter paper with a degree of polymerization of about 2,000 was predicted to decrease by about 7% after being irradiated with a 1 kGy gamma ray and electron beam. To evaluate the irradiation effect on paper, it is therefore more reasonable to evaluate the degree of polymerization rather than the strength and color of the paper.

Temperature-swing adsorption of 4-isopropylphenol and bisphenol A onto a poly(N-isopropylacrylamide)/silica gel composite

Poly( N -isopropylacrylamide) (poly(NIPA)) is a thermosensitive polymer, with a lower critical solution temperature (LCST) of ~33 °C in water. Herein, a poly(NIPA)/silica gel composite was developed as an adsorbent for the temperature-swing adsorption (TSA) of organic pollutants in aqueous media. Poly(NIPA) was grafted onto a millimeter-sized silica gel by silane coupling, followed by free radical polymerization. The composite reversibly adsorbed/desorbed organic pollutants such as bisphenol A and 4-isopropylphenol by changing the temperature across the LCST range to modulate the hydrophilicity/hydrophobicity of poly(NIPA). The adsorption isotherms and kinetics were evaluated through a batch experiment. A continuous TSA process using a fixed-bed column with adsorption at 40 °C followed by desorption at 20 °C was demonstrated. The associated breakthrough curve was predicted by a mathematical analysis involving the Henry constant and effective diffusivity. The composite overcomes drawbacks such as a low mechanical strength and thermosensitive volume change of conventional poly(NIPA) gels. Thus, this study provides a strategy for preparing an environmentally friendly adsorbent and designing an adsorption process for wastewater treatment and conservation of water environments. • A thermosensitive poly( N -isopropylacrylamide)/silica gel composite was developed. • The composite adsorbed/desorbed organic pollutants with a change in temperature. • The adsorption isotherms and kinetics were investigated. • A continuous temperature-swing adsorption process was demonstrated and designed. • It is an environment-friendly way for wastewater treatment and water conservation.

Study of the Structure and Properties of Electrical Sand Concrete under Prolonged Exposure to Sulfate Environment

Destructive processes accompanying sulfate corrosion of concrete significantly affect the durability of products and structures based on Portland cement. In the presented study, the long-term effect of sulfate corrosion on the electrical properties of electrically conductive sand concrete was studied. In the course of the study, the following were tested: an electrically conductive composition and a control composition based on plain Portland cement. The analysis of changes in the mineral composition of the samples over the course of time in an aggressive solution was carried out. The results show that during the exposure period of the samples from 28 to 224 days, the absorption of sulfate ions slows down and averages 26% for the control composition and 29% for the electrically conductive composition, of the total volume of absorbed sulfates. At the same time, the course of sulfate corrosion was accompanied by a 6% increase in the density of samples of both compositions, as well as a cyclic change in mechanical strength within 15%. In its turn, the key indicator of the electrical characteristics of the compositions-electrical resistivity-tended to increase throughout the experiment. These results can be recommended for assessing the durability and the nature of the operating conditions of electrical concretes used in aggressive environments.

Effect of Different Temperatures on the Hydration Kinetics of Urea-Doped Cement Pastes

Urea can solve the problem of concrete cracking due to temperature stress. However, its effect is affected by temperature. The influencing mechanism of temperature on urea-doped cement pastes is still unclear. This paper explores the effect of different temperatures on the hydration kinetics of urea-doped cement pastes. The isothermal calorimeter (TAM Air) was used to test hydration at three constant temperatures (20 °C, 40 °C, and 60 °C). The effects of the urea admixture and temperature on the hydration process and hydration kinetics parameters were investigated. The hydration mechanism was analyzed, and the changes in macroscopic mechanical compressive strength and porosity were tested. The results show that, as the urea content (UC) increases, the rate of hydration gradually decreases, and the increase in temperature promotes the inhibitory effect of urea. At 60 °C, UC of 8% can be reduced by 23.5% compared with the pure cement (PC) group's hydration rate. As the temperature increases from 20 °C to 60 °C, the Krstulovic-Dabic model changes from the NG-I-D process to the NG-D process. The effect of urea on the compressive strength of the cement is mainly shown in the early stage, and its effect on later strength is not obvious. In addition, urea will increase its early porosity. The porosity will gradually decrease in the later stage. The results of the study clarify the effect of temperature on urea-doped cement pastes. The optimal content of urea in cement is about 8%, which will provide theoretical guidance for solving the cracking problem of large-volume concrete due to temperature stress.

Pre-Treatment and Turbidity Reduction of Sea Waters Using New Composite Ceramic Microfiltration Membranes with Iron Oxide Additive

In this research, an experimental study was carried out on the pre-treatment and turbidity removal of Persian Gulf water using cross flow microfiltration by new composite ceramic membranes. Three types of tubular microfiltration composite ceramic membranes that consisted of Mullite, Mullite/SiC, and Mullite/SiC/Fe2O3 with different compositions were fabricated at relatively low temperature (1250 °C) with extrusion and sintering for this purpose. Furthermore, changes in porosity, pore size, and mechanical strength were compared in Mullite membranes and composite membranes to find the most suitable membrane for turbidity removal from seawater. According to the results, the most suitable synthetic membrane was M/SiC/Fe10 membrane with 60:30:10 ratios of mullite, silicon carbide, and iron oxide with 64.6 ± 2% porosity, average pore size of 0.54 μm, 95.4% turbidity removal, pure water permeability of 3811 L/m2.h, and higher mechanical strength (22.4 MPa) compared to other fabricated membranes. Results of Hermia’s models for fouling modeling indicated that the dominant mechanism of blocking in all membranes was standard pore blocking with the best compliance with experimental data. Therefore, results demonstrated that the addition of Fe2O3 to silicon carbide ceramic microfiltration membranes, with a specific weight percentage, improves their mechanical properties and membrane performance for pre-treatment of seawaters.

The relationship between color and mechanical properties of heat-treated wood predicted based on support vector machines model

Abstract Thermal modification or heat treatment can cause the loss of mechanical property of wood. In this study, Poplar (Populus tomentosa Carr.) and spruce (Picea obies Mast.) were heat treated at 180, 200, and 220 °C for 2–10 h. Changes of color (L*, a* and b*) and mechanical strength including modulus of elasticity (MOE), modulus of rupture (MOR) and shear strength after heat treatment were analyzed. Time-temperature superposition methods were used to quantify color and mechanical strength. The prediction models of MOR, MOE and shear strength were assessed with support vector regression model (SVR) based on color parameters. The trends of color change and mechanical strength after heat treatment were highly consistent. The values of apparent activation energy (E a ) calculated from color parameters (110.6–187.2 kJ/mol) were identical to those from mechanical strengths (103.2–219.2 kJ/mol). Color parameters were used as input variables, and the MOE, MOR, and shear strength were output parameters in the established SVR model. Gaussian radial basis function (RBF) was found to be a kernel function for SRV model. Optimal hyperparameters in SVR model were obtained using cross-validation and grid search. The determination coefficients for MOE, MOR, and shear strength were 0.903, 0.835, and 0.865, respectively for poplar. The high correlation suggested that wood mechanical strength can be predicted non-destructively through measuring color parameters after heat treatment.

Radiation effect on stability and interfacial property of PBO fibers through high energy electron beam

Poly-p-phenylene benzobisoxazole (PBO) fibers have been studied and applied in many extreme environments owing to their excellent physical, mechanical properties and great chemical inertness. Here, radiation effect on PBO fibers is investigated through high energy electron beam with a high adsorbed dose up to 100 MGy. Changes of structure, mechanical strength, molecular weight and interfacial property are investigated in detail. It can be found that the structure and mechanical strength do not change obviously. Results of XPS and relative viscosity retention rate show a high radiation resistance of PBO fibers at below 10 MGy. Though PBO fibers can be degraded under over 50 MGy in a certain degree, the relative viscosity retention rate is still over 85% even at the absorbed dose of 100 MGy. Results of optical contact angle and interfacial shear strength of fiber/epoxy composite indicate the interfacial reaction activity decreases under 100 MGy. Therefore, it can be inferred that PBO fibers show a high radiation stability and an increasing trend of the interfacial inertness with the increase of absorbed dose. Through this work, it can provide references for PBO fibers application in the extreme environment.

Understanding the role of graphene oxide nanoribbons–functionalized carbon nanotubes–graphene oxide (GNFG) complex in enhancing the fire resistance of cementitious composites

• The effect of GNFG on the fire resistance of cementitious composites was tested. • GNFG had better thermal stability than CNTs at high temperatures. • GNFG presented excellent dispersion and promoted the hydration of cement clinkers within the cement paste. • GNFG better preserves the microstructure and mechanical strength of cement paste at high temperatures. In this study, the enhancement effect of synthesized graphene oxide nanoribbons–functionalized carbon nanotubes–graphene oxide (GNFG) complex on the fire resistance of cementitious composites was investigated by comparing it with two traditional nano-reinforcements, carbon nanotubes (CNTs) and graphene oxide (GO). Ordinary Portland cement (OPC) paste reinforced with GNFG, CNTs, and GO at 0.05 wt% were heated to a target temperature of 200, 400, 600, and 800 °C, and the changes in mass loss, bulk density, surface morphology, and mechanical strength were compared with unreinforced OPC paste. The transformation of the microstructure and variation in the hydration products were also analyzed. GNFG exhibited excellent dispersion in the aqueous solution and good thermal stability at high temperatures. Furthermore, it promoted the hydration of anhydrous cement clinkers to produce a denser microstructure and limit the deterioration of the microstructure and mechanical properties of the cement paste at high temperatures. These results suggest that GNFG can play a crucial role as a novel nano-reinforcing agent to improve the mechanical properties and fire resistance of cementitious materials.

Experimental Investigation on the Mechanical Properties of Cement Mortar Incorporated With Graphene and C&D Waste

Concrete is one among the essential materials utilized in engineering works.The two main properties which attribute to the reliability of concrete as a universal choice are strength and durability. Despite its remarkable properties, it has few shortcomings, namely, low tensile strength, low ductility, and unavoidable cracks. All of these inadequacies are the result of the relatively porous microstructure of concrete. The use of nanomaterials is the most influential and powerful alternative to overcome these limitations. In this paper, a comparative study of the mechanical properties of normal strength mortar over the mortar reinforced with graphene has been presented. Making use of the construction demolition waste in different proportions, namely, 25% and 50% as the partial replacement for fine aggregate, graphene was incorporated in the cement mortar of 1:3 grade in the proportion of 0.1%, 0.4%, 0.7%, and 1% by weight of cement respectively. The proportion of construction demolition waste and graphene were consequently varied and the corresponding change in mechanical properties, namely, compressive strength, tensile strength, and flexural strength of cement mortar was observed on the 7th day, 14th day, 21st day, and 28th day respectively and the same was compared with the result of normal mortar. It was observed that these mechanical properties increased with an increase in the proportion of graphene up to a certain limit after which it decreased. However, the optimum percentage of graphene varied along with the variation in the percentage of C&D waste.

Application of mullite-zeolite-alumina microfiltration membranes coated by SiO2 nanoparticles for separation of oil-in-water emulsions

The main objective of this work is the manipulation of hydrophilic materials in support, intermediate and selective layer to synthesize a novel nano-tubular ceramic membrane for treatment of oily wastewater. First, porous mullite-alumina-zeolite composite membranes were prepared by an extrusion method. Changes in porosity, pore size, shrinkage, and mechanical strength of the support membranes were investigated as function of percentage composition and sintering temperature in order to obtain the optimal conditions. According to the results, the most favorable condition set was determined to be a support membrane with a weight percent of 50, 30, and 20 for mullite, alumina, and zeolite, respectively, and a porosity of 38%, a pore size of 0.39 µm, and a shrinkage of 10.2% sintered at 1250 °C and with good mechanical properties at 24.6 MPa. The cross-flow filtration technique was employed to coat the natural zeolite on the inner surface of the support membrane to achieve a narrower pore size distribution. Finally, a thick layer of nano-SiO2 was coated on the membrane by utilizing the dip-coating method to develop a hydrophilic membrane while avoiding defects. Moreover, scanning electron microscopic (SEM) analysis of the SiO2 membranes showed that the natural zeolite and nano-SiO2 layer is homogeneous and demonstrates high adhesion to the support membrane. Besides, the result of COD rejection showed that the SiO2 membranes have an undeniable capability in rejection of oil droplets with a reasonable permeation flux. Therefore, the obtained membranes are highly promising for practical applications and environmental remediation in sensitive Persian Gulf zone.

Study of Degradation Mechanisms of Strength and Thermal-Physical Properties of Nitride and Carbide Ceramics-Promising Materials for Nuclear Energy.

The dependences of changes in the strength properties of nitride and carbide ceramics under high temperature irradiation with Kr15+ and Xe22+ heavy ions at irradiation doses of 1012–1015 ions/cm2 are presented in this work. The irradiation was chosen to simulate radiation damage processes that are closest to the real conditions of reactor tests in operating modes of increased temperatures. Polycrystalline ceramics based on AlN, Si3N4 nitrides, and SiC carbides were chosen as objects of research, as they have great prospects for use as a basis for structural materials for high-temperature nuclear reactors, as well as materials for nuclear waste disposal. During these studies the effect of radiation damage caused by irradiation with different fluences on the change in mechanical strength and hardness were determined, and the mechanisms causing these changes depending on the type of irradiated materials were proposed. The novelty of this study is in the results obtained determining the stability of the strength and thermophysical parameters of nitride and carbide ceramics exposed to high-temperature irradiation, which made it possible to determine the main stages and mechanisms for changing these parameters depending on the accumulated radiation damage. The relevance of this study consists not only in obtaining new data on the properties of structural materials exposed to ionizing radiation, but also in the possibility of determining the mechanisms of radiation damage in ceramics.

Tissue-specific pectin methylesterification and pectin methylesterase activities play a role in lettuce seed germination

Cell wall mechanical strength is partially controlled by the degree of pectin methylesterification that is mediated through the action of pectin methylesterases (PMEs). Changes in cell wall mechanical strength are involved in the endosperm cap weakening and radicle elongation growth during the germination of some endospermic seeds. However, little is known about the roles of the status of pectin methylesterification and PME activities during seed germination, especially in lettuce, a traditional model plant for seed germination research. In the present study, we demonstrated that the rupture of lettuce endosperm cap during seed germination was caused by cell rupture, not by cell separation as formerly reported in other species. Next, we investigated the status of pectin methylesterification of the endosperm cap and radicle during germination, using immunolabeling by specific monoclonal antibodies against methyl-esterified pectins and calcium bridges. We also analyzed the expression patterns of PME activities and an encoding gene LsPME/PMEI51 in the endosperm cap and radicle. It was found that cell walls of the endosperm cap comprise more methyl-esterified pectins than radicle, while PME activities and the abundance of LsPME/PMEI51 transcripts in the endosperm cap are lower than those in the radicle. In addition, the status of pectin methylesterification and PME expression patterns changed during seed germination. Low PME activities and high pectin methylesterification in the endosperm cap is hypothesized to be the reason of why endosperm does not rupture by cell separation. It is concluded that tissue-specific pectin methylesterification and PME activities play a role in lettuce seed germination.

Understanding the mechanical strength and dynamic structural changes of wood-based products using X-ray computed tomography

ABSTRACT The mechanical strength of wood-based products (WBP) is determined by the anatomical structure of wood, including the specificities of earlywood (EW) and latewood (LW), and the bonding interphase between wood and adhesive. In this study, two-layered specimens were manufactured according to three possible assembling strategies in terms of the anatomical structure of wood. Wood micro-structure and phenol formaldehyde (PF) adhesive distribution were visualized with optical and fluorescence microscopy. Internal structure changes were dynamically monitored using X-ray computed micro-tomography (X-ray µCT) while compressing specimens. The results showed that in EW, adhesive could penetrate into cell lumens through collapsed cell walls. In LW, an adhesive can diffuse along rays. In bonding interphase, consisting of EW and LW, an adhesive preferably penetrates into EW. The adhesive increases EW stiffness but has little impact on the stiffness of LW.EW was mainly compressed during compression due to the collapse of the thinner cell walls and larger lumina. The collapse of the cell walls was more likely to happen in regions close and parallel to the boundary of growth rings. The cell structure in adjacent areas to resin ducts of LW was more affected, as these can be squeezed under compression.

Sensitivity of physical membrane damage detection on low pressure membranes of commercialized specification

In this study, a pressure decay test (PDT) was applied to microfiltration (MF) and ultrafiltration (UF) membranes that were in use for more than 7 years at a wastewater treatment plant. Laboratory-scale hollow-fiber membrane modules were made from treatment plant used membranes having areas of 0.18 and 0.027 m2 for MF and UF membranes, respectively. Filtration was performed on a feed solution containing organic, inorganic and turbidity elements as foulants for 1 h followed by clean-in-place (CIP) with 1 N HCl and 3000 mg L−1 NaOCl solutions for 3 h and continued for 6 CIP cycles. Membrane characteristics were analyzed by using Fourier-transform infrared analysis, scanning electron microscopy and atomic force microscopy. Changes in mechanical strength were estimated with a universal testing machine and integrity was evaluated by comparing the upper control limit (UCL) of the pressure decay rate (PDR) with the experimental PDR of these membranes. Results showed that UCLs of both membranes were less than the actual decay rate, confirming the compromising of 4 log removal value (LRV) removal in both membranes in a Ptest of 100–160 kPa, with a maximum of 3.78 LRV at the end of the experiments at a 100 kPa Ptest. Membrane characterization revealed the loss of hydrophilicity and strength due to the oxidation and dehydrofluorination of the membranes, particularly in MF membranes. Scratches on membrane structures due to complex foulants and exposure to CIP chemicals are the most likely causes of integrity loss associated with membrane operation in a treatment plant.

Mechanical strength, mass loss and volumetric changes of drying adobe matrices combined with kaolin and fine soil particles

Earthen construction represents almost 30% of the housing in developing countries, partially because of its low cost compared to steel and concrete construction, and also because the raw materials are available almost everywhere. One of the biggest disadvantages of earthen materials is the lack of information and variety on their constitutive materials, specifically their soil type. This work addresses the physical and mechanical properties of adobe matrices containing different concentrations of kaolin, which is a specific type of clay, as well as different proportions of fine particles of the original soil of the adobe matrix. All adobe matrices were manufactured with a SM-SC soil obtained from Santiago, Chile, and had concentrations of 0, 10, 30, and 50% of kaolin and 0, 10, 20, and 30% fines of the original soil content. It is concluded that the compressive strength of the studied earthen mixtures improves when kaolin is added to the mixture. The shrinkage of adobe matrices with kaolin compared to plain adobe matrices was reduced during the first days of age and stayed stable after that. This work shows that the inclusion of fines from the original soil (other than kaolin) did not significantly affect any of the studied properties. It also shows that the Unified Soil Classification System is not sufficient to characterize soils for adobe matrices.

Technological and Quality Aspects of the Use of Innovative Inorganic Binders in the Production of Castings

The production of cores for the pre-casting of holes in castings places high demands on the quality of the molding mixtures used. For this reason, organic binders are still used to a large extent, which, although they meet the technological requirements, are a source of pollutant emissions during the production of castings. The current trend towards greening production is therefore looking for a suitable alternative in ‘green’ inorganic binders. Although for many decades standard inorganic binders could not be compared with organic resins in terms of technological properties, new inorganic binder systems are currently being developed that can largely eliminate these disadvantages, which include, in particular, significantly lower collapsibility and reclaimability, and lower mechanical strength values. Last but not least, the use of these binder systems may be limited by the technological parameter of shelf-life, which is the main focus of this study. The aim of this paper is to evaluate the influence of technological parameters of core production using a new generation of inorganic binder systems on their shelf-life. Shelf-life, defined as the change in mechanical strength and wear resistance as a function of exposure time in a given environment, is evaluated under different climatic conditions.

Effect of ambient temperature on the properties and action mechanism of silt-based foamed concrete

Foamed concrete involves pouring layers at different ambient temperatures. However, the mechanical indexes in the specification are obtained under standard curing conditions. This paper addresses the respective influences of different ambient temperatures on the mechanical strength of silt-based foamed concrete. Next, comprehensive experiments exploring the mechanism of effect of temperature on silt-based foamed concrete, including compressive strength, flexural-tensile strength, splitting strength and elastic modulus, California bearing ratio (CBR), scanning electron microscope (SEM), and X-ray diffraction (XRD), were conducted. The test results show that the compressive strength of silt-based foamed concrete distributed in the shape of a saddle with increasing ambient temperature. The optimal strength was obtained at approximately 20 ℃. Below 0 ℃, the hydration ceased to influence the structure significantly. The structure of the concrete could be repaired to some extent under the standard curing conditions. When the ambient temperature rose to 20 ℃, the mechanical strength of the concrete rose almost lineally. From 15 to 35 ℃, the change in mechanical strength was not apparent. When the temperature exceeded 35 ℃, the mechanical strength dropped significantly with the rise of temperature influenced by the evaporation. Although the mechanical strength could be improved to some extent with the progression of age after the temperature returned to 20 ℃, the strength was lower than the standard strength, especially in frozen state and high temperature state.

Mechanical damage mechanism of frozen coal subjected to liquid nitrogen freezing

Anhydrous liquid nitrogen cracking low-permeability coal seams can improve the efficiency of coalbed methane extraction. Under normal pressure, liquid nitrogen (-196℃) contacts the coal body, and the temperature stress and frost heave force generated will change the mechanical properties of the coal body, cause internal structural damage, and increase the seepage channel of coalbed methane. In order to study the influence of different liquid nitrogen freezing variables on the mechanical properties of coal, Brazilian splitting, uniaxial compression, and ultrasonic velocity measurement tests of saturated frozen coal were carried out. The results show that a single freezing of liquid nitrogen has a certain enhancement effect on the mechanical properties of coal: the tensile strength increases by 64.0%, the uniaxial compressive strength increases by 54.6%, but as the freezing time increases, the coal strength increases first and then decreases The strength of coal under the action of freeze–thaw cycles shows an exponential decline in varying degrees: tensile strength has dropped by 81.3%, uniaxial compressive strength has dropped by 68.9%, and the degree of decline is positively correlated with the number of freeze–thaw cycles. The change in mechanical strength changes the elastic stage. The freezing enhancement factor I and the freeze–thaw damage factor D are defined by the change of elastic modulus. I presents a quadratic function relationship that first increases and then decreases with freezing time, and D continues to decrease as the number of freeze–thaw cycles increases. The longitudinal wave velocity first increases and then decreases with the freezing times, and decreases with the increase of the number of freeze–thaw cycles. The porosity is negatively correlated with the wave velocity. The wave speed decreases, the porosity increases, and the internal pores of the coal are connected to form a fracture network, which accelerates the damage of the coal and reduces the mechanical properties of the coal. Through analysis, it is concluded that when liquid nitrogen acts on coal, the change in mechanical properties is the result of the combined action of multiple forces.

Mechanochemical Reactions of Bis(9-methylphenyl-9-fluorenyl) Peroxides and Their Applications in Cross-Linked Polymers

The exploration of mechanochemical reactions has brought new opportunities for the design of functional materials. We synthesized the novel organic peroxide mechanophore bis(9-methylphenyl-9-fluorenyl) peroxide (BMPF) and examined its mechanochromic properties. The mechanism behind its mechanofluorescence was clarified and harnessed in polymer networks that can release the small fluorescent molecule 9-fluorenone upon exposure to a mechanical stimulus. Additionally, polymer networks cross-linked with BMPF units are able to tolerate temperatures up to 110 °C without any change in optical properties or mechanical strength. As mechanophores based on organic peroxide have rarely been documented so far, these fascinating results suggest excellent potential for applications of BMPF in stress-responsive materials. The mechanochemical protocol demonstrated here may provide guiding principles to expand the field of mechanochromic peroxides.