Material Testing Machine Research Articles

Preparation of poly (styrene‐methyl methacrylate)@grafted halloysite microspheres and the properties of its composite fibers

AbstractIt has become a hotspot that microfibrils with a high aspect ratio have a good reinforcement effect on the composite fibers. To prepare the micro‐fibrillation composite fibers with excellent performance and good dispersity, poly (styrene‐methyl methacrylate)@grafted halloysite nanotubes(PSM@PMHNTs) microspheres were prepared by suspension polymerization method, and the PSM@PMHNTs reinforced composite fibers were prepared by simple blending with polymethylmethacrylate (PMMA). The structure and mechanical properties of the composite fibers were studied by transmission electron microscopy, scanning electron microscopy, dynamic thermo‐mechanical analysis, and universal material testing machine. The results showed that polystyrene grafted halloysite nanotubes (PMHNTs) had good hydrophobicity and were successfully embedded in poly (styrene‐methyl methacrylate) (PSM). The mechanical performance of microfibril composite fiber with PSM@PMHNTs is better when compared that with PMHNTs and PSM, and the elongation at break of the composite fiber has dramatically increased by 120.90% compared to that of pure PMMA. In addition, the mechanical properties of the composite fibers were increased firstly and then decreased with the increase of PMHNTs contents and draft ratios, while the glass transition temperature of the composite fibers had no obvious changes. The composite fiber has the best mechanical properties when the content of PMHNTs is 1.0 wt% and the draft ratio is 6, and the tensile strength and elongation at break were 26.94% and 256.36% higher than that of pure PMMA, respectively.

A Comparative Evaluation of the Strain Transmitted through Prostheses on Implants with Two Different Macro-Structures and Connection during Insertion and Loading Phase: An In Vitro Study.

Background: The purpose of this study was to measure and compare the strain levels in the peri-implant bone as generated by the blade-like implant (BLI) and the screw-type implant (STI) with two different internal connections (hexagonal and conical) and with a 1:1 and 2:1 crown/implant (C/I) ratio. Methods: The implants (BLI and STI) were placed into sawbones according to the manufacturer’s protocol. Two strain gauges, horizontal and vertical to the implant axis, were placed around each implant on the bone surface 1 mm from the cervical part. Each implant was loaded by a material testing machine at a force of 100 N. Micro-strains (με) generated in the surrounding bone were measured by a strain gauge and recorded. Results: Recorded micro-strains were not significant in both the insertion and loading phases (p < 0.0625). The average recorded micro-strain values were lower in the horizontal dimension of STI with hexagonal connection when the C/I ratio was 2:1 compared with BLI, 210 με and 443 με, respectively. Conclusion: Within the limitations of this study, implant design, implant-abutment connection and C/I ratio did not influence strain values in bone and there is no statistically significant effect of these parameters on bone.

Biocompatibility evaluation of electrospun PLCL/fibrinogen nanofibers in anterior cruciate ligament reconstruction

The study aimed to evaluate the safety and function of poly(lactic-acid-co-ε-caprolactone) (PLCL)/fibrinogen nanofibers (P/F-Ns), and provide theoretical basis for the clinical application. The surface morphology, mechanical properties, the hydrophilicity and the fibrinogen content of P/F-Ns were tested by scanning electron microscope, the material testing machine, the contact angle meter and the microplate reader, respectively. The cell adhesion, proliferation and ligament remodeling genes expression of Hig-82 cells on P/F-Ns were conducted through cell counting kit-8 (CCK-8) and real-time quantitative PCR analyses, respectively. The results showed that with the increase of the fibrinogen content, the pore sizes and hydrophilicity of three P/F-Ns increased, but the mechanical properties decreased. Cell adhesion and proliferation tests showed that P/F-N-2 held the best ability to promote cell adhesion and proliferation. The ligament remodeling genes expressions of Hig-82 cells on P/F-N-1, P/F-N-2 and P/F-N-3 were all up-regulated compared to P/F-N-0 on days 3 and 7. All the three P/F-Ns containing fibrinogen (P/F-N-1, P/F-N-2 and P/F-N-3) had better biocompatibility compared to P/F-N-0, and could be efficiently applied to the reconstruction of anterior cruciate ligament.

Comparison of Fracture Resistance between Single-cone and Warm Vertical Compaction Technique Using Bio-C Sealer® in Mandibular Incisors: An In Vitro Study

The aim of the study was to compare the fracture resistance of the single-cone technique with the warm vertical compaction technique (WVCT) in mandibular incisors using Bio-C sealer®, by applying a compressive force using a universal testing machine (UTM) (Instron 5943; Instron, Norwood, Massachusetts, USA). Twenty-two mandibular incisors were selected and divided into two groups after applying the same shaping protocol. To assess the influence of the wave vertical compaction technique on the fracture resistance, the first group was obturated by a single-cone obturation technique (SCOT) (n = 12), and the second group was obturated with a WVCT (n = 10). Bio-C sealer® (Angelus, Hague Netherlands) was used in the two obturation techniques. Wax-coated roots were put in an acrylic mold and loaded to compressive strength fracture in a mechanical material testing machine (UTM) (Instron 5943; Instron, Norwood, Massachusetts, USA), with Bluehill 3 software (version 3.15.1343) recording the maximum load at fracture. Fracture loads were compared statistically, and data were examined with the Mann-Whitney U test with a level of significance set at p ≤0.05. No statistically significant difference was registered between the SCOT (264.97 ± 83.975 N) and WVCT (313.35 ± 89.149 N) concerning the endodontically treated mandibular incisors' fracture resistance (p = 0.159). Warm vertical compaction technique (WVCT) did not affect the fracture resistance of endodontically treated mandibular incisors when compared to SCOT canal preparation. General practitioners and endodontists face challenges during root canal treatment such as cracks and root fractures. This article aims to guide experts in choosing between the single-cone and the continuous WVCT aiming for higher long-term quality of root canal filling.

Study on Dynamic Mechanical Behaviors and J–C Constitutive Model of a Fine-Grained D6A Steel

The uniaxial tensile loading tests of coarse-grained D6A steel (CG, d = 20 μm) and fine-grained D6A steel (FG, d = 1.5 μm) were performed using a material testing machine and rotating disk Hopkinson tension bar, respectively. The stress–strain curves of two steels at different strain rates (0.001~1500 s−1) were obtained. Results show that grain refinement effectively improves the strength of FG steel, which is achieved by high-density of grain boundaries and cementite particles hindering the movement of dislocations. In the strain rate range of the test, the strain rate sensitivity of FG D6A steel decreases, which is considered to be the result of the athermal stress that independent of the strain rate becomes the dominant part of the total stress. Combined with the experimental data, the parameters of the Johnson–Cook (J–C) constitutive model were calibrated. The stress–strain curves obtained by simulations are in good agreement with those from tests. These results may provide an important experimental reference and theoretical basis for the application of FG D6A steel in various fields.

Mechanical properties of DNAN/HMX melt-cast explosive

The mechanical response and damage process of melt-cast explosives under complex stress states can be affected by having a high-volume ratio of the energetic filler material to the matrix. Understanding the characteristics of the nonlinear mechanical properties of 2,4-dinitroanisole/cyclotetramethylenetetranitramine (DNAN/HMX) melt-cast explosives with a high solid-phase content can enable the analysis of the response mechanism of different strain rates. DNAN/HMX melt-cast explosives were investigated using a universal material testing machine and a split-Hopkinson pressure bar (SHPB). The stress equilibrium and constant-strain-rate loading of the low-impedance, low-strength DNAN/HMX melt-cast explosive material in the SHPB test were achieved using an incident wave shaping technique, and stress–strain curves were obtained at different strain rates (40, 51, 110, and 256 s−1). Based on the stress–strain relationship curve of DNAN/HMX melt-cast explosives, the viscoelastic parameters of the Visco-statistical cracking mechanism (SCRAM) constitutive model of DNAN/HMX melt-cast explosives are obtained by the least squares method. The results of quasi-static and dynamic loading show that the failure stress of DNAN/HMX melt-cast explosives gradually increases with the increasing strain rate, exhibiting a significant strain rate effect, while the dynamic loading displays the viscoelastic effect. The fitted Visco-SCRAM model can better predict the mechanical response of explosives under complex loading.

Evaluating Pull-Out Strength of Barbed Suture In Vitro by Using Porcine Tissue and Polydimethylsiloxane (PDMS).

Using barbed thread lifting for facial rejuvenation has become popular these days due to its minimally invasive procedures with reduced complications. However, only limited studies regarding its mechanical properties for face suspension were published. The aim of this study was to evaluate suture-holding ability regarding its facelift property, and different specimens were tested in order to establish an in vitro model. Fresh porcine tissue and the synthetic material polydimethylsiloxane (PDMS) were selected to simulate human skin for evaluating barbed suture pull-out strength by the universal material testing machine. The results showed that the pull-out strength of barbs between different porcine tissues varied without consistency. By contrast, PDMS (30:1) showed more consistent pull-out strength in each testing, and the average maximum load force was close to porcine tissue. Furthermore, after submerging barbed sutures in PBS for 0 days (T0), 7 days (T7) and 14 days (T14), a trend of decreased average maximum load force, displacement and force of 1.5 mm/2 mm/3 mm displacement could be detected by in vitro testing with PDMS (30:1). These results provide support for using PDMS (30:1) to evaluate suture pull-out strength and holding/lifting capacities in vitro to obtain consistent and objective information for evaluating substantial equivalence of devices. The established in vitro method could be used for the future development of barbed thread lifting technology.

Biomechanical Comparison of a Horizontal Mattress, Cross Suture and Vertical Mattress for Repair of a Tendon Weave in a Porcine Model.

Background: An effective suture method enables early active motion exercises and optimal post-surgical outcomes. The aim of this study is to evaluate the tensile strength of three suture configurations - horizontal mattress (HM), vertical mattress (VM) and a cross suture for repair of a tendon weave. We hypothesised that the direction of mattress sutures relative to the tendon fibres would affect the tensile strength of tendon repair. Methods: Using porcine flexor tendons and the same number of surgical sutures, three tendon weave constructs differing in the method of suture were compared: HM suture configuration (conventional technique), cross-stitch (CS) configuration (conventional technique) and VM suture configuration (novel technique). Ten pairs of each group were mounted in a material testing machine and subjected to a simple tensile test and a cyclic loading test for their biomechanical comparison. Results: The VM group and CS group had significantly higher ultimate failure load, linear stiffness and fatigue strength as compared to the HM group. The failure mode was suture breakage or tendon rupture for the VM and the CS group, while the suture pullout of the tendon only occurred in the HM group. Conclusion: Among the three techniques used for repair of a tendon weave, the VM suture technique was demonstrated to have the greatest tensile strength and least associated with suture pull-out. The direction of the mattress suture in relation the direction of tendon fibres affects the strength of repair.

Improved distribution of leg forces after fibular resection and synostosis

PurposeGenu varum- a common symptom in achondroplasia- may lead to ankle valgus in children. Ankle valgus may be mitigated by tibiofibular synostosis, but this is not always the case. The mechanical environment around the growth plates plays an important role in ankle valgus. The purpose of this project is 1) to determine the strain through the distal fibular growth plate before and after tibiofibular synostosis, and 2) postulate whether the change in strain affects ankle valgus. This project measured the distal fibular strain in a porcine hind leg model.MethodsThe lower legs of seven pigs were removed, instrumented with strain gauges, and loaded compressively in a material testing machine. Loads were applied at three phases: 1) the intact leg, 2) leg with fibula resected, and 3) leg with fibula resected and tibiofibular synostosis. Mean strains were compared between phases using a mixed affect model. The significance level was adjusted for multiple comparisons using the Bonferroni method.ResultsPhase 1, intact leg, had the highest strain value at 1247.9μɛ. In phase 2, the mean strain was 106.2μɛ. In phase 3, the compressive mean strain dropped to 477.4μɛ, which is 38% of the strain in phase 1. Standard error was 86.8μɛ; p < 0.001.ConclusionResults indicate that more of the force through the leg is transmitted through the tibia after fibular resection and tibiofibular synostosis, which improves the balance of forces through the leg.

Curing, mechanical, and tribological properties of hydrogenated nitrile butadiene rubber reinforced with Al2O3 nanoparticles

AbstractA novel hydrogenated nitrile butadiene rubber (HNBR) composite filled with organically modified Al2O3 nanoparticle was fabricated. The effects of nanoparticle Al2O3 (nano‐Al2O3) with different particle sizes on the curing, mechanical, and tribological properties of the HNBR composites were studied. Nano‐Al2O3 with different particle sizes (i.e. 10, 50, 100, and 200 nm) was filled into the HNBR in this work. Attenuated total reflection Fourier transform infrared (ATR‐FTIR) spectroscopy was used to investigate the degree of grafting between modified nano‐Al2O3 and rubber matrix. Universal material testing machine was used to study the mechanical properties of the HNBR composites. The tribological properties of the HNBR composites were tested by a ballon‐on‐disk tribometer. The wear morphology of the HNBR composite surface was examined by scanning electron microscopy (SEM). The test results reveal that the nano‐Al2O3 as filler of HNBR composite promoted the vulcanization process, improved tensile and compressive strength, and increased hysteresis energy density and the damping coefficient. And the mechanical properties of the HNBR composite improved gradually with the decrease of nano‐Al2O3 particle size. The friction and wear test results show that the addition of nano‐Al2O3 greatly reduced the dry friction coefficient and specific wear rate of HNBR composites, and the friction coefficient and wear rate decreased gradually with the decrease of nano‐Al2O3 size. The HNBR composite filled with 10 nm nano‐Al2O3 had the better mechanical properties and anti‐wear performance due to that the 10 nm nano‐Al2O3 could form denser cross‐linked network.

The Effect of Ligature Type on Lateral Tooth Movement during Orthodontic Treatment with Lingual Appliances-An In Vitro Study.

(1) Background: One of the most challenging parts in lingual orthodontics is the control and correction of the tip of anterior teeth, due to the occlusal open vertical slot of the incisors in lingual systems. The presented experimental in-vitro study was performed to determine the maximal tipping moment of the anterior teeth between two types of lingual brackets, the Incognito™ Appliance System (Incognito, TOP-Service, Bad Essen, Germany) and Tip-Bar™ system (Incognito, TOP-Service, Bad Essen, Germany). Furthermore, twelve different ligation methods and two different ligature materials were investigated. (2) Methods: The measurement was performed by assessing the stiffness and ultimate strength of the ligature in a uniaxial material testing machine (Instron, Norwood, MA, USA) using a 0.025 × 0.018 inch stainless steel wire. (3) The results showed that the highest precision for control tipping of anterior teeth was determined for the 0.010 inch Stainless Steel Tie (Pelz and Partner). Furthermore, the Tip-Bar™ brackets increased the maximal moment by 33.8% for elastic and steel ligatures. (4) Conclusions: The lateral tooth movement is highly dependent on the type of ligature and applied material during orthodontic treatment with lingual appliances. The use of 0.010 inch steel ligatures and the Tip-Bar™ bracket design results in better alignment in the anterior teeth segment.

Accurate plane strain compression test validation

Large strain characterization of sheet metals has become increasingly important with the generalization of advanced high strength steels, for which the tensile test provides data over a very reduced strain range. Among the numerous alternative characterization tests, the plane strain compression test (PSCT) requires a small amount of material and classical testing machine and acquisition. PSCT was mainly used for hot forming characterization, but recently it has been proved sufficiently accurate for application in cold metal forming. This work provides an in-depth validation of the PSCT by means of the finite element method. When converting the PSCT force-displacement curve into a stress-strain curve (flow curve), several analytical corrections are applied. Several sets of such corrections terms were proposed in the literature, some of which are consistently used by all authors, while others being only used in some papers. The FE simulation of the test was used in order to validate these correction terms and their hypotheses. The originality of the approach is the design of a sequence of test configurations which allow for the individual validation of each and every one of the correction terms concerning the effect of several test parameters. The FE simulations showed that the analytical exploitation of the PSCT provides a very good accuracy. They helped identifying the most suitable correction terms to consider.

Experimental analysis and prediction for the bonding strength of steel cord of conveyor belt under the temperature influence

To research the effect of temperature on the interfacial bonding strength of the steel cord rubber conveyor belt, an electronic universal material testing machine and a temperature control box were used as the test equipment. The withdrawal force of the steel cord skeleton of the rubber conveyor belt was tested in the temperature range of −30 °C to +40 °C. Concurrently, the interfacial morphology between the steel cord and rubber at different temperatures was observed by using an ultra deep field electron microscope. Finally, different bonding strength prediction models were established. The results show that the variation trend of the steel cord withdrawal force with displacement is the same at different temperatures. With the increase in temperature, the interfacial bonding strength between the steel cord and the rubber matrix decreases gradually; the second-order polynomial bonding strength prediction model can meet the prediction requirements of the steel cord bonding strength at different temperatures, and the errors are controlled within 5%.

High-strength Ti–BN composites with core-shell structured matrix and network-woven structured TiB nanowires

A novel architectural Ti composite composed of network-woven structured TiB nanowires in a core-shell structured Ti matrix was fabricated to improve the strength of Ti matrix composites (TMCs), where the shell consists of rich N solute atoms while the core is deficient of N solute atoms through spark plasma sintering of powder mixtures of Ti powder and BN nano-powder. The phase composition, morphology, element distribution, and mechanical properties of prepared samples were analyzed by X-ray diffraction (XRD), scanning electron microscope (SEM), electron probe microanalyzer (EPMA), and electronic universal material testing machine. The results indicate that the TMCs with designed architectures have been successfully achieved, and the as-prepared Ti–2BN (wt.%) composite exhibits an ultimate compressive strength of ~1.8 GPa with a strain-to-fracture of ~9%, while the Ti–1BN (wt.%) attains an ultimate compressive strength of ~1.6 GPa and a strain-to-fracture of ~20%. Moreover, the roles of the hybrid reinforcement structures in strengthening the Ti composites were discussed.

FRACTOGRAPHIC ANALYSIS OF LITHIUM DISILICATE CERAMICS AND MONOLITHIC ZIRCONIA CERAMICS

Objective: To compare the fracture mode of lithium disilicate ceramics and zirconia ceramics through a single-load-to-failure test, and reveal the cause of failure through the fractographic analysis of fracture morphology. Methods: Based on the standardized preparations, 10 IPS e.max disilicate ceramic crowns (IPCs) and 10 monolithic zirconia ceramic crowns (MZCs) were designed and fabricated. All the specimens were placed on a universal material testing machine for a single-load-to-failure test. The fracture load was recorded, and two independent sample [Formula: see text]-tests were performed. Additionally, the type of fracture under a stereo-microscope was observed, and the morphological characteristics of the fracture with a scanning electron microscope (SEM) were investigated. Results: The fracture load of the IPC group was [Formula: see text][Formula: see text]N, and that of the MZC group was [Formula: see text][Formula: see text]N, with a statistically significant difference ([Formula: see text], [Formula: see text]). The fracture types of the IPC group and the MZC group were similar, namely, types II and III. The fracture modes of the two groups were all ceramic layer fracture. Through SEM, the origin of the crack on the occlusal surface could be traced back. The crystal fracture of IPC group had a rock sugar-like pattern, and the crystal distribution of MZC group was uniform. Conclusions: Zirconia ceramics have higher fracture load and a denser crystal structure compared to lithium disilicate. Fractographic analysis method could be a better way to analyze the failure mode of single-layer porcelain materials and reveal the origin of fracture.

Design and Manufacturing of a Dynamic Pressure Standard Based on Dropping Mass Principle

Dynamic pressure measurements are constantly used in areas such as combustion analysis in the engine cylinder, automotive industry, turbomachinery, aerodynamics, fluid power and control, production processes and within medicine. In these applications, the pressure values range from a few pascals to a few gigapascals, while the frequency ranges studied start below 1 Hz and extend to 1 MHz. Since dynamic pressure calibrators are not commercially available, laboratories working in the field of dynamic pressure measurements have developed some calibrator devices in line with their own needs. Hydraulic and pneumatic shock tubes, pulse and sine wave generator devices can be given as examples of such devices. Even deadweight testers can be included in the class of such devices by using the instantaneous pressure relief method in the negative direction. This study, it is aimed to develop a dynamic pressure device to be used in the calibration of dynamic pressure sensors and to make progress in calibration methods. To develop the aforementioned system, the working method of material testing machines working with the principle of mass reduction was used. The measuring range of the device planned to be produced is aimed to be up to 500 MPa

Association Study on the Pore Structure and Mechanical Characteristics of Coarse-Grained Soil under Freeze–Thaw Cycles

In this study, the relationship between the pore structure and macroscopic mechanical characteristics of coarse-grained soils from mine dumps is explored under various freeze–thaw cycles. A series of experiments were conducted on the mine dump materials using a standard cube sample of 7 cm × 7 cm × 7 cm, a moisture content of 7.5%, and a density of 2.34 g/cm3. The pore structure test and uniaxial compressive strength test were carried out on the coarse-grained soil samples under different freeze–thaw cycles by using a nuclear magnetic resonance (NMR) instrument and a universal servo material testing machine. The study explores the change law of the strength and pore structure of coarse-grained soil, and establishes the correlation model between the pore structure and mechanical characteristics. The results showed that: (1) With the increase in the number of freeze–thaw cycles, the porosity of the coarse-grained soil gradually increased, and the bonding ability between the internal soil particles weakened, resulting in a decrease in strength. (2) With the increase in freeze–thaw cycles, the proportion of pore volume of the main peak and secondary peak 2 of T-2 spectrum curve increases gradually, and the internal pore structure of coarse-grained soil gradually develops towards medium and large pores. (3) There is an exponential function between the variation of pore volume proportion of each peak of coarse-grained soil and the relative strength value, and there is a good fitting coefficient between the two, indicating that the change of pore structure can well reflect the evolution law of strength.

Dynamic Hardening of AISI 304 Steel at a Wide Range of Strain Rates and Its Application to Shot Peening Simulation

The hardening behavior of AISI 304 steel is investigated at various strain rates, from the quasi-static state to ultra-high strain rates, because it is necessary for numerical simulation of high-speed deformation problems. This kind of testing at a wide range of strain rates has not been yet reported in the literature although it is indispensable for accurate numerical analyses where deformation takes place with a wide spectrum of strain rates. AISI 304 steel is a kind of austenitic stainless steel used in various engineering fields, which does not harden by heat treatment, but by cold working such as shot peening. In order to obtain hardening properties at each strain rate, tensile tests were carried out using a universal testing machine of the INSTRON 5583 for the quasi-static state, a high speed material testing machine of a servo-hydraulic type for intermediate strain rates, and a tensile split-Hopkinson bar for high strain rates with a digital image correlation method. The hardening properties at the ultra-high strain-rate region were obtained from Taylor impact test results by calibration with an experimental–numerical hybrid inverse optimization for reliable extrapolation results. Finally, the hardening flow stress curves were obtained at various strain rates from the quasi-static state to ultra-high strain rates by interpolating the data with the extended Lim–Huh model. The result shows that the yield stress of 759 MPa at the quasi-static state increased to 1429 MPa at a strain rate of 106 s−1, which is about 1.9 times of the quasi-static yield stress. As a demonstration example, the dynamic hardening properties obtained were applied to a shot peening simulation that required hardening curves at a wide range of strain rates from the static state to 106 s−1. The simulation result with the dynamic hardening properties is compared to that with the quasi-static properties. The comparison shows a notable difference in the maximum compressive residual stress by 32%, demonstrating that it is important to consider the dynamic hardening properties in such high strain rate simulation as shot peening for accurate simulation results.

Axial-compression performance and finite element analysis of special-shaped tubular three-dimensional woven composites with different thicknesses and shapes

In this research, the self-reinforced structures tube preforms, which are the special-shaped tubular three-dimensional woven preforms, had been manufactured on semi-automatic looms. To prepare special-shaped tubular three-dimensional woven composites with different wall thicknesses and shapes, the vacuum-assisted resin transfer method was used by performing the prepared preform and resin as the reinforcement and matrix. Then, the axial compression performance was tested on a universal material testing machine. The results revealed that both the wall thicknesses and the shape had remarkable effects on the composites’ axial-compression properties. The performance of special-shaped tubular three-dimensional woven composites and normal tubular three-dimensional woven composites were compared and special-shaped tubular three-dimensional woven composites were better. Finally, finite element analysis was adopted in this research. The initial damage, stress evolution, and final failure of special-shaped tubular three-dimensional woven composites had been shown by the analysis. The stress concentration and failure mechanism of the composite materials after axial compression was revealed and the finite element model was correct and can predict the mechanical properties of special-shaped tubular three-dimensional woven composites.

Properties study of composites for polybutene‐1 and modified graphene oxide

AbstractPolybutene‐1 (PB‐1) was wildly used as pipe and film with its excellent mechanical performance, great creep resistance even at high temperature, good machinability, and fillable performance. This work focused on studying the properties of composites for polybutene‐1 and modified graphene oxide (MGO). The graphene oxide (GO) was prepared using an improved Hummers method, and then it was modified with γ‐methylacryloxy propyl trimethoxysilane (KH570). After that, the obtained MGO was composited with PB‐1 by the solution blending method. The structure and properties of PB‐1 composites were investigated by Fourier transform infrared (FTIR), scanning electron microscope (SEM), X‐ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimeter (DSC), universal material testing machine. The results showed that the MGO and PB‐1 presented good compatibility, and the addition of MGO could not change the crystal morphology of PB‐1. When the content of MGO was 0.75 wt% of PB‐1, the melt and crystallization temperatures were 127.5 and 70.5°C, and the strength of tensile and bending in the PB‐1/MGO composites was 27.58 and 674 MPa. Thus, the PB‐1/MGO composites have great potential for practical applications, such as in agricultural films and tubes.