Fluorocarbon Resin Research Articles

Impressive reinforcement on the anti-corrosion ability of the commercial fluorocarbon paint via an amino groups modified graphene

The interaction with the matrix and the dispersion within the matrix hinder the realization of graphene's potential as an anti-corrosive filler. Herein, a -NH2 modified graphene-based filler (PS-PVP@NH2-rGO) was designed to simultaneously address these issues in the fluorocarbon resin (FEVE) coating. Reinforing FEVE coating with PS-PVP@NH2-rGO, the wear rate and the lowest-frequency impedance modulus after a 7-day immersion were found to be 0.35 times and 177.3 times those of FEVE coating respectively. Ultraviolet-Visible spectra confirmed the excellent dispersibility of PS-PVP@NH2-rGO. The designed differential scanning calorimeter experiment demonstrated the close interaction between PS-PVP@NH2-rGO and the FEVE matrix. Due to this close interaction, PS-PVP@NH2-rGO exhibited a high degree of dispersion within the FEVE matrix rather than self-aggregation, then concentrated the stress outside, absorbed energy produced during the friction process, and enhanced the coating's wear resistance. A complicated “labyrinth” was also created by the fillers. With chemical interactions, the fillers and the surrounding FEVE matrix formed an integrated whole, making the “obstacles” created by the fillers more significant. Consequently, the strong barrier effect resulted in superior anti-corrosion performances of PS-PVP@NH2-rGO/FEVE coating. Introducing -NH2 groups in was proven to effectively complete the coating, improve coating's quality and barrier effect, and finally prevent corrosive media. This study aims to provide design ideas and theoretical supports for high-performance heavy-duty anti-corrosive coatings.

Wear and corrosion resistance of textured and functionally particle-enhanced multilayer dual-biomimetic polymer coatings

This study presents a dual-biomimetic polymer coating with improved wear and corrosion resistance, inspired by natural biological structures of shells and superhydrophobic surfaces. The coating is composed of alternating hard epoxy resin layers, modified with benzotriazole-functionalized silica for corrosion protection, and soft fluorocarbon resin layers, enhanced with graphene oxide for improved mechanical properties. Surface textures were added using a soft template method to boost hydrophobicity and reduce wear. The coating demonstrated excellent hardness, impact resistance, and corrosion protection, particularly in simulated seawater. Additionally, surface textures further minimized wear by trapping debris. This design strategy offers a promising approach for advanced polymer coatings in marine, machinery, and chemical applications, combining durability, protection, and self-healing properties.

Robust, intelligent photochromic cotton fabrics with superamphiphobicity and expedient UV detection ability

Multifunctional photochromic cotton fabrics have enormous application potential in our daily lives, but still suffer from poor durability, slow coloration, tedious fabrication process, and short service life. The hydrophilic and polysaccharide characteristics of cotton fabrics make them vulnerable to bacteria adhesion and proliferation. Herein, intelligent photochromic cotton fabrics featured with durable superamphiphobicity are fabricated by in situ growth of ZIF-8 nanoparticles encapsulating spirooxazine (SP) photochromic dyes on the fabric surface, followed by low surface energy treatment using a fluorocarbon resin (FR) via a dip-coating method. The resultant SP@ZIF-8/FR cotton fabrics exhibit superamphiphobicity with contact angles of over 150° to both water and oils (surface tension ≥30 mN/m). When exposed to UV light, the fabric rapidly changes its color from white to blue within 10 s and fades in 2 min under visible room light. The developed SP@ZIF-8/FR coating is durable against numerous damages in daily usage, such as machine laundry, abrasion and UV irradiation, without losing photochromic and superamphiphobic properties. The high durability and excellent reversible color response allow the coated fabric to intuitively and quantitatively monitor outdoor UV intensity. Owing to the presence of ZIF-8, the treated fabrics also show excellent antibacterial property with antibacterial rates of over 99 % against both E. coli and S. aureus. The developed fabric coating can be engineered to visually assess the UV intensity in the outdoor environment.

The addition of SiO2-GO hybrid material enhanced the tribological properties of fluorocarbon resin in marine corrosive environments

Fluorocarbon resin (FC), as a commonly used topcoat material for coating systems, is susceptible to the combined effects of seawater corrosion and ocean current erosion when working in marine environments for a long time, often causing hard particle wear and damage. In order to improve the tribological properties of FC resin, graphene oxide (GO) was modified by sol-gel method, and SiO2-GO hybrid nanomaterials and SiO2-GO/FC composite coatings were innovatively prepared. Through a 50 days long-term immersion experiment, the friction coefficient and wear rate of the composite coating were characterized. The study showed that the addition of SiO2-GO effectively reduced the friction coefficient and wear rate of the coating before corrosion immersion. The average friction coefficient of 0.4 wt% SiO2-GO/FC under a 10 N load for 15 minutes was 0.172, and the wear rate was 1.19×10−4 mm3/Nm, a decrease of 69.9% compared to pure FC coating. After long-term immersion, an oxide layer generally appeared between the coating and the substrate. On the 50th day of immersion, FC, GO/FC, 0.2 wt% SiO2-GO/FC, and 0.6 wt% SiO2-GO/FC all lost their protective ability, while 0.4 wt% SiO2-GO/FC maintained basic tribological properties due to its excellent corrosion resistance. This was mainly due to the lubrication characteristics and good dispersibility of SiO2-GO, which endowed the coating with stronger wear resistance. In addition, the maze effect formed by SiO2-GO within the coating reduced corrosion damage, indirectly improving the tribological performance of the coating.

Fabrication of a Fluorocarbon Low Surface Energy Coating for Anti-Stain Applications.

In the long-term working state, stains such as dust, oil, and charged particles in the environment are prone to deposit on the surface of the power equipment, which has great security risks. To achieve anti-stain performance, fluorocarbon composite coating with a low surface energy was prepared and studied. In this paper, SiO2 nanoparticles were used as inorganic fillers and fluorocarbon resin was used as the substrate to form anti-stain coatings. By adjusting and optimizing the ratio of fillers and organic resins, coatings with different static contact angles were constructed. The optimum composite coating has a contact angle of 151 ± 2° and a surface energy of 9.6 mJ/m2. After high-temperature treatment (up to 200 °C), immersion in corrosive solutions (pH 3-11), and sandpaper abrasion (after 5 abrasion cycles), the coating has been proven to show good thermal, chemical and mechanical stability. Our study provides significant research and market opportunities for the anti-stain application of the fluorocarbon composite coating on power equipment.

Fabrication of a superhydrophobic-superoleophilic particle material for oil-water separation and oil extraction

Oil-water separation has become a serious issue due to the increasing oily wastewater discharged in the environment and oil spills from time to time. Superhydrophobic and superoleophilic materials are a promising approach in oil-water separation. However, the preparation procedures for these materials are often complex and expensive, and their stability is not robust enough. In this study, superhydrophobic and superoleophilic particles are successfully prepared via a facile and green mixing method. Fluorocarbon resin, CaCO3 and SiO2 are coated on fly-ash cenospheres to form a stable superhydrophobic-superoleophilic surface, which exhibits a water and oil contact angle of 153.3° and 0°, respectively. To our knowledge, we’re unaware of any previous study reporting a superhydrophobic-superoleophilic material prepared in such a convenient way. The as-prepared superhydrophobic material can serve as high-performance filters for separating various oil-water mixtures, with a separation efficiency up to 99.2%. And it can be applied in water-in-oil emulsion separation. Meanwhile, the as-prepared particles are able to extract oils from oil-water mixtures and the oil-extraction capacity is up to 0.56 g/g. Furthermore, the obtained material has a robust stability against various hash conditions and a good recyclability. The simply-prepared superhydrophobic cenospheres are expected to be a promising candidate for application in diverse oil-water separation situations.

Corrosion resistance of fluorescent carbon fiber reinforced FEVE and fluorescence detection of coating surface

Fluorocarbon resin coating plays a significant role in marine severe corrosion protection. However, seawater has a great influence on the corrosion rate of materials, so it is necessary to strengthen the monitor of marine materials during service. In this study, using solvothermal method, the rare earth (RE) europium nitrate, 1.10-phenoline and concentrated nitric acid oxidized carbon fiber (CF) were chemically doped in the reactor to prepare a kind of carbon fiber with fluorescent characteristics. Then, the RE modified CF was mechanically mixed with fluorocarbon resin to prepare a fluorescent indicator anti-corrosive coating with intrinsic red light emission guided by Eu3+ ultra-sensitive electric dipole transition (5D0→7F2). The correlation between corrosion time and fluorescence spectroscopy could be established to detect the corrosion resistance of the coating, it provides a reference for the anti-corrosion intelligent indication of the coating.

Design and scalable fabrication of core-shell nanospheres embedded spectrally selective single-layer coatings for durable daytime radiative cooling

Daytime radiative cooling (DRC) can spontaneously cool a surface without consuming energy by reflecting sunlight and emitting thermal radiation to the outer space through atmospheric transmission windows. However, the manufacturing of efficient DRC designs with low cost, high scalability, strong applicability, and along with achieving great weather resistance for practical applications remains a challenge. Here, we report a facile strategy to fabricate spectrally selective single-layer DRC coatings by facilely embedding hydrophobically modified TiO2@SiO2 nanospheres in commercially available fluorocarbon resin matrix for improving daytime cooling. The TiO2 shell thickness, pigments volume fraction, and coating thickness are optimized using finite difference time-domain (FDTD) simulation to maximize the sunlight scattering efficiency with minimal material usage. The coating prepared with a spaying time of 40 s reflects above 93% of solar irradiance and exhibits an infrared emissivity of ∼94% at atmospheric transmittance window wavelength, leading to a desirable daytime sub-ambient temperature drop of ∼10.9 °C. Building energy simulations demonstrates that 32.6% of cooling energy can be saved per year in China when the coating is used as building envelopes. The coatings also show improved scalability, peel strength, self-cleaning, and weather resistance, which makes them attractive candidates for long period outdoor DRC applications. This work paves a new way to design radiative cooling coatings with low cost and ease of application for the development of highly energy-efficient cooling technology.

Design of TDI modified oil‐in‐water emulsion and its application in explosive ink

AbstractIn order to solve the short stabilization time of the water‐in‐oil emulsion binder system and the shortcomings of the critical blast size of the explosive ink molding sample, a water‐in‐oil emulsion binder was designed with polyvinyl alcohol (PVA) aqueous solution as the aqueous phase, fluorocarbon resin (FEVE) ethyl acetate solution as the oil phase, and toluene diisocyanate (TDI) added to modify the water‐in‐oil emulsion binder. The hexanitrohexaazaisowurtzitane(CL‐20)based explosive ink was made by incorporating submicron CL‐20 into the binder system, and the print‐formed samples were tested for microscopic morphology, crystallographic analysis, mechanical susceptibility, and detonation transmission performance. The results showed that the explosive ink‘s viscosity was moderate and suitable for direct printing, and the formed sample‘s surface particles were uniformly dispersed and had a honeycomb structure. The crystal form of CL‐20 explosive in the explosive ink did not change, the molded sample‘s impact and frictional sensitivities were 1 J and 32 N lower than those of submicron CL‐20, respectively, and the detonation velocity of the molded sample was 6655 m/s. The critical detonation size and critical detonation thickness were 1×0.0078 mm and 0.1 mm, respectively, and a critical detonation corner turning of 90°–160° could be achieved. The results show that the prepared binder system is stable for a long time, and the explosive ink molding samples have excellent blast transmission performance.

Analysis and discussion on the surface enrichment of fluorine atoms in fluorocarbon antifouling flashover coating

Fluorocarbon resin was widely used in the hydrophobic coating. The antifouling flashover coatings were prepared with FEVE fluorocarbons resin as film forming material, polytetrafluoroethylene (PTFE) microparticles and modified TiO2 nanoparticles as fillers, and perfluorosilane as coupling agent. The experiment results showed a surface enrichment phenomenon of fluorine atoms in the samples, the surface F atoms relative content were 9.42%, 11.73%, 13.08% respectively in three samples, which the filler with single PTFE, unmodified TiO2 and PTFE, modified TiO2 and PTFE. Meanwhile, after different outdoor exposure times, the surface enrichment of fluorine atoms existed also, the test results showed the surface F atoms relative content were 12.26%, 13.16%, 18.27% respectively, which with initial sample, 1.5a and 3a outdoor exposure samples. Its mechanism maybe the long side chain perfluoroalkyl group moves to the surface of the coating without being affected by the main chain, thus fluorine atoms are enriched on the surface of the coating.

An investigation on the microscale detonation transmission performance of HMX-based explosive ink

ABSTRACT To investigate the effect of Octogen (HMX) in the application of microscale explosive transfer sequence charges. In this paper, we designed and formulated four kinds of explosive inks with different solid contents using submicron HMX as the main explosive and polyvinyl alcohol (PVA) aqueous solution / fluorocarbon resin (FEVE) ethyl acetate solution emulsion as the binder system, studied the effect of solid content on the rheological properties of explosive inks, conducted micro loading studies using a direct ink writing molding platform, The morphology, safety performance and explosion transmission performance of the microscale printed molding samples were tested and analyzed. The results show that the ink containing 90 wt.% HMX explosive has the largest n value, has good printability, smooth surface of the molded sample, consistent, uniform particle dispersion inside the line; HMX crystalline type is still β type; critical impact energy and critical friction of the printed sample compared to the raw HMX increased by 114% and 100% respectively, critical impact energy compared to CL-20-based explosive ink printed sample increased by 67%, indicating that the printed samples have a high safety under the Mechanical Sensitivity. The detonation velocity of the printed sample is 6902 m·s−1 at a charge cross-section size of 1 mm × 1 mm. The critical detonation thickness of the printed sample is 1 × 0.095 mm, Can be stable under the corner of not more than 120 ° detonation.The results of the study show that HMX as the main charge can improve the wide applicability of direct-written explosive ink.

PH-Responsive Intelligent Antibacterial Coatings Based on 2D-COF for Controlled Release of Capsaicin

Herein, we designed and synthesized a two-dimensional covalent organic framework (2D-COF) of a Schiff base using a mechanical chemical grinding method. Moreover, capsaicin@chitosan (CAP@CS) microcapsules were loaded on a TpPa-1 COF by a physical adsorption method to prepare composites (CAP@CS/TpPa-1), which realized the pH-sensitive controlled release of the fungicide CAP, dispersed in fluorocarbon resin to prepare an intelligent coating with environmentally friendly long-term antifouling performance. TpPa-1 improves the antibacterial efficiency by increasing the dispersity of CAP@CS in the resin. Therefore, a CAP release amount of 2 wt % composite coating can meet the minimum bacteriostatic concentration of 37.5 μg/mL required for antifouling. Importantly, pH-responsive controlled release caused by the protonation of CS and the electrostatic interaction between CAP@CS and TpPa-1 COF and increased bacterial contact area by CAP@CS reunion inhibited by TpPa-1 COF improve the bactericidal efficiency of the composite. The composite coating has excellent corrosion resistance, mainly because COF extends the propagation path of the corrosive medium.

Investigating Waterproofness and Breathability of a Coated Double-Sided Knitted Fabric

The demand for waterproof breathable fabrics is increasing globally and so are efforts to develop such garments. In this paper, the development of a waterproof breathable textile by coating a double face knitted fabric is described. The applied polymeric coating is a mixture of an acrylic paste and a fluorocarbon resin. The aim of this study was the investigation of the breathability and waterproofness of the coated samples. The coating was made of industrialized chemical products and did not require water use. The screen coating process wastewater was also reduced. Three parameters related to the coating process were analyzed and optimized. These parameters were the fluorocarbon resin quantity (%), acrylic paste quantity (g·m−2), and reticulation time (min). The analyzed responses were the air permeability, windproofness, water vapor permeability, and resistance to water penetration. The optimized values of air permeability and water vapor permeability were equal to 154.81 L·m−2·s−1 and 83.852%, respectively. These values were judged acceptable when compared with commercialized products. The windproofness and the resistance to water penetration were equal to 161.81 L·m−2·s−1 and 78.51 Schmerber, respectively. Thus, both responses still need to be improved in order to obtain waterproofness properties. Based on the obtained results, the coated fabric can be used as a laminate outer layer for producing waterproof breathable fabrics.

One-Step Hydrothermal Synthesis, Thermochromic and Infrared Camouflage Properties of Vanadium Dioxide Nanorods.

Vanadium dioxide (VO2) has attracted interest from researchers because it undergoes a metal–insulator phase transition (MIT), which is accompanied by a reversible and remarkable change in both electrical and optical properties. VO2 exhibits numerous polymorphs and thus it is essential to control the growth of specific monoclinic VO2 (M) and rutile VO2 (R) phases. In this study, we developed a cost-effective and facile method for preparing VO2 nanorods with a highly crystalline monoclinic phase by one-step hydrothermal synthesis, in which only V2O5 and H2C2O4 are used as raw materials. The phase evolution of VO2 during the hydrothermal process was studied. The obtained VO2 nanorods were thoroughly mixed with fluorocarbon resin and homogeneous emulsifier in an ethanol solution to obtain a VO2 dispersion. To prepare VO2 films, screen printing was performed with a stainless steel screen mesh mask on glasses or fabric substrate. The VO2 coating had good thermochromic performance; the infrared transmittance change was greater than 20% @1.5 μm whilst keeping the visible transmittance greater than 50%. Meanwhile, the polyester base coating on the fabric had an emissivity change of up to 22%, which provides a solution for adaptive IR camouflage.

An easily prepared and long-term effective cooling coating that can be cooled to sub-ambient temperature without polyethylene film

Radiative cooling (RC) is an efficient cooling technology for the sustainable reduction of energy consumption. In this study, we have prepared a RC coating by embedding zirconia and silica aerogel in a water-based fluorocarbon (FC) resin. The highest solar reflectance is achieved by optimizing the pigment volume concentration, filler particle size, and coating thickness. The solar reflectance of the coating can reach 95.7 %, and the average broadband emissivity reaches 99.08 %. The coating is examined in a test device with and without polyethylene (PE) film, where its temperature becomes 6 and 4.5 °C lower than the ambient temperature, respectively. The coating with high emissivity achieves net cooling powers of 53.2 and 96 W/m2 during day and night, respectively. The prepared paint was applied to the roof of a wooden model house, and the indoor temperature of the paint was 2.3, 2.8, and 7 °C lower than that of the commercial paint, TiO2-FC paint, and blank house (without paint), respectively. The test results reveal that the coating has an excellent high-temperature resistance, ultraviolet aging resistance, and stain resistance, ensuring its long-term effectiveness. Furthermore, the simple preparation method of the coating and low emission of volatile organic components indicate its potential for large-scale practical applications.

Wear and corrosion resistance of fluorocarbon/epoxy blended coatings nanofilled by mechanically peeled few-layer fluorinated graphene

In order to prepare novel fluorocarbon resin coatings with outstanding wear and corrosion resistance, this manuscript prepared few-layer fluorinated graphene (FG) nanosheets through a simple mechanical exfoliation method, and nanofilled them into the fluorocarbon resin/epoxy resin (FEVE/EP) blended matrix to prepare FG-FEVE/EP nanocomposite coating. The exfoliated FG was 4–7 layers and contained active O–H and C=C functional groups in addition to abundance of C–F bonds that were identical to those of FEVE. The as-prepared FG layers were freely stacked and possessed low orientation, and exhibited good dispersion and interfacial compatibility in the FEVE/EP matrix. The FG-FEVE/EP nanocomposite coating filled with 0.1 wt% FG (0.1% FG-FEVE/EP) achieved the hardness of 3H and adhesion strength of 7.7 MPa. Compared with pure FEVE/EP coating, the 0.1% FG-FEVE/EP reduced the friction coefficient by 10.6% and 30.7% and the wear rate by 55.1% and 56.1% under dry friction and simulated seawater friction conditions, respectively. In addition, the EIS testing and fitting data yielded that the impedance modulus of the 0.1% FG-FEVE/EP was two orders of magnitude higher than that of the FEVE/EP coating after 15 days of immersion in NaCl solution, and the coating resistance (Rc) still reached 1.6 × 109 Ω cm2, showing excellent corrosion resistance. The excellent wear and corrosion resistance of the FG-FEVE/EP was attributed to the fact that the FG prepared by mechanical peeling was uniformly dispersed and interfacially compatible in the FEVE/EP matrix, which contributed to the excellent interlayer lubrication, stress resistance and barrier corrosion protection of FG.

Investigation on fabrication of durable superhydrophobic surface based on multi-adhesive strategy

Poor mechanical stability, expensive cost, and complex preparation process still limit the practical application of artificial superhydrophobic surfaces. Improving the chemical durability and mechanical stability of superhydrophobic surfaces is an important research direction to promote its commercial application. Herein, we developed a cost-effective and simple method to produce a durable superhydrophobic surface based on a multi-adhesive strategy. Fluorocarbon resin and hydrophobic silica nanoparticles bring excellent hydrophobicity and low adhesion to the coating. And the introduction of bottom resin and phenolic amine adhesive can not only increase the adhesion between superhydrophobic coating and substrates but also increase the mechanical stability of the coating. Even after severe mechanical damage such as abrasion, rubbing, and scraping, the prepared surface can still maintain excellent superhydrophobicity. At the same time, stable resin and inorganic filler bring more than 99 % anticorrosion efficiency, excellent thermal stability, and chemical stability to the superhydrophobic surface. The outstanding performance of the superhydrophobic surfaces in the field of self-cleaning, anti-icing, and frost protection may attract attention for practical application in the industry. The convenience of surface preparation on various substrates by spraying and brushing methods, and the low cost of manufacturing can also greatly expand the application prospect of the developed superhydrophobic surface.

Novel superhydrophobic NIR reflective coatings based on Montmorillonite/SiO2 composites for Energy-saving building

In recent years, cool building materials have received increasing attentions due to their superior energy-saving efficiencies. In this work, novel self-cleaning cool coatings based on fluorocarbon resin-montmorillonite (MMT)/SiO2 composites were prepared for energy-saving buildings. The intercalation modification of MMT improved the dispersion stability of MMT in organic solvent. Surface modification of MMT and SiO2 particles by fluoroalkyl silane (FAS) produced hydrophobic particles. Fluorocarbon resin was used as a binder. With the assistance of the micro/nano structure of montmorillonite/SiO2 composites and low surface energy of FAS and fluorocarbon resin, superhydrophobic state of the MMT/SiO2 composite coatings can be achieved. The maximum contact angle of the MMT/SiO2 composite coatings was as high as 163.5°. The superhydrophobic composite coatings exhibited superior self-cleaning property and good mechanical durability. Furthermore, the NIR solar reflectance of the superhydrophobic montmorillonite/SiO2 composite coatings ranged from 0.77 to 0.85. The composite coatings reduced the heat box’s inside temperature of by 5.9℃. Therefore, the integration of high NIR reflectance property and superior self-cleaning property makes montmorillonite/SiO2 composite coatings good candidates as self-cleaning cool roof coatings for energy-saving buildings.

Leak-free, high latent heat and self-cleaning phase change materials supported by layered cellulose/Fe3O4 skeleton for light-to-thermal energy conversion

Phase change materials (PCMs), with the green and reversible thermal storage features, have drawn tremendous interest in the energy storage field. However, their advanced application in solar storage is limited by high energy consumption during fabrication, easy liquid leakage, low latent heat and lack of light-to-thermal conversion capability. Herein, the composite PCMs are fabricated by the co-precipitation of Fe3O4 nanoparticles and solvent exchange of molten polyethylene glycol (PEG) into layered cellulose skeleton, which replaces ultrasonic dispersion and vacuum impregnation procedures to reduce the energy consumption. The obtained composite PCMs have no leakage even under the weight of 200 times of its mass due to the supporting function of unique layered cellulose skeleton, revealing their excellent encapsulation effect. The introduced Fe3O4 nanoparticles endow the composite PCMs with enhanced thermal conductivity (12.7–61.9%), excellent light absorption capacity and light-to-thermal conversion efficiency (70.7–86.7%). The composite PCMs also maintain a high latent heat of 172.6–177.7 J/g, corresponding to 95.3–98.1% of that of pure PEG. Furthermore, the composite PCM coated with hydrophobic fluorocarbon resin exhibits the ability to maintain a relatively constant indoor temperature and self-cleaning when fixed atop the model house roof, indicating their promising potentials for applications in thermal regulation of intelligent buildings. Our approach represents a low-energy strategy for the production of leak-free composite PCMs with excellent light-to-thermal energy conversion.

A weather-resistant daytime radiative cooler based on fluorocarbon resin

Daytime radiative cooling (DRC) technology is used for cooling by reflecting sunlight and radiating the heat to outer space. It does not require energy for cooling, and there is no pollution. In this study, a double-layer DRC structure was prepared using the doctor's blade method. The upper layer was a fluorocarbon resin (FEVE), while the bottom layer was a silver layer. The average reflectivity in the solar radiation band and the average emissivity in the atmospheric window were 0.933 and 0.945, respectively. Without considering non-radiative heat transfer, the cooling power was calculated as 128.75 W/m2 under direct sunlight and for the ambient temperature of 27 °C. When the material was used as a radiative cooler in Tianjin, China, the average temperature drop from 10:00 a.m. to 2:00 p.m. was 5.1 °C. The proposed polymer cooler is cost-efficient, easy to fabricate and commercially feasible. In addition, its good weather resistance makes it possible for radiative coolers to be used outdoors for a long time, which will greatly promote the wider practical application of DRC.