85 results about "EPDM rubber" patented technology

The utility model discloses an indirect air cooling tower anti -freezing device of thermal power plant relates to the field of anti -freezing device, including side galvanized steel sheet, galvanized steel bottom cover plate and galvanized steel top cover plate, the inside of galvanized steel top cover plate is provided with side galvanized steel sheet, and both sides of galvanized steel top cover plate all are provided with steel washer, and the bottom of steel washer and galvanized steel top cover plate one end all movably install fixed peg, and one end of galvanized steel top cover plate is provided with galvanized steel bottom cover plate, and the junction of side galvanized steel sheet and horizontal galvanized steel sheet, the joint edge of galvanized steel top cover plate and galvanized steel bottom cover plate all install core rivet, the utility model discloses through triangle frame sealing joint, turbulence rib gas flow guide, felt and EPDM rubber reinforce heat preservation, fixed peg is equipped with steel washer and prevents deformation, through the lightweight adaptation of environment of aluminium plate, and foam heat preservation increases efficiency, and the design of sealing and firmness reduces freeze damage, reduces maintenance cost, and double -lifted anti -freezing and durability.

This invention discloses a EPDM rubber and its preparation method, comprising copolymerizing the EPDM rubber from a first structural unit provided by ethylene, a second structural unit provided by propylene, and a third structural unit provided by a polyene monomer. This invention achieves precise control of the molecular structure of the EPDM rubber by introducing a polyene monomer with a specific structure as the third monomer, and combining it with a restricted geometry catalyst or a vanadium-based catalyst, thereby improving the uniformity of the copolymer and the vulcanization efficiency. The resulting rubber exhibits a narrow molecular weight distribution, suitable Mooney viscosity, and good processing properties, making it suitable for high-performance rubber products. The preparation method is simple, environmentally friendly, and easy to industrialize.

This utility model relates to the field of wiring harness rubber sleeve technology, and more particularly to a rubber sleeve for automotive door wiring harnesses. It includes a main body mechanism for improving structural strength, on which a connecting mechanism for stable connection with the vehicle door body is provided. The main body mechanism includes a telescopic sleeve, with connecting tubes fixedly connected to both ends of the telescopic sleeve. Multiple annular iron plates are installed inside the telescopic sleeve, and circular plates are fixedly connected to each of the annular iron plates. This utility model significantly improves the overall structural strength of the device by setting up the main body mechanism. By using EPDM rubber and adding 5 phr microencapsulated antioxidants, the wear resistance of the telescopic sleeve and connecting tubes is improved, effectively resisting fatigue cracks caused by repeated bending. The multiple annular iron plates enhance mechanical support, disperse frictional stress, prevent accelerated wear and cracking of the vehicle body sheet metal, and improve the service life of the device.

This invention relates to the field of insulation materials technology, specifically to a high-strength, tear-resistant, halogen-free, flame-retardant insulating material and its preparation method. The high-strength, tear-resistant, halogen-free, flame-retardant insulating material comprises the following components by weight: 70-90 parts EPDM rubber, 5-15 parts thermoplastic elastomer, 15-25 parts medium-density polyethylene, 10-20 parts ethylene-vinyl acetate copolymer, 3-5 parts triallyl isocyanate, 2-4 parts sulfur, 1-3 parts polyethylene wax, 3-5 parts zinc oxide, 1-3 parts antioxidant, 30-50 parts aluminum hydroxide, 20-40 parts modified silica, 0.2-0.5 parts ultraviolet absorber, 1-3 parts accelerator, and 2-4 parts silicone masterbatch. The high-strength, tear-resistant, halogen-free, flame-retardant insulating material prepared by this invention exhibits excellent tensile and tear resistance and flame-retardant properties, thereby extending its service life.

The utility model discloses a kind of briquettes suitable for anti-accumulation of dust assembly, including briquette body, laminated part and frame, the briquette body includes two kinds of middle pressure and side pressure, the middle part of briquette body is equipped with mounting groove, the side of briquette body integrally formed with briquette assembly, the bottom of briquette assembly is hingedly arranged with pressing plate, pressing plate upper end integrally formed with carding member profile, the position of briquette assembly bottom carding member profile is equipped with clamping groove, the bottom of pressing plate integrally formed with three element ethylene propylene rubber.The utility model relates to a kind of briquettes suitable for anti-accumulation of dust assembly, solves the problem of hot anti-accumulation of dust assembly installation on market, and the installation step of conventional assembly is identical, need not add installation step, applicable to single glass or double glass assembly, non anti-accumulation of dust assembly can also be universal, power station end is free from switching, alleviate inventory pressure, EPDM exceeds briquette effectively avoid cutting surface when assembly is stressed to glass, more safe.

The utility model relates to a rubber preheating device for EPDM rubber floor mat production. The structure comprises: an oven main body, a support main body, a first circular table, a second circular table, a driving motor and an extrusion mechanism. The support main body is symmetrically arranged inside the oven main body. The first circular table is symmetrically installed below the support main body inside the oven main body. The second circular table is arranged above the support main body inside the oven main body. The driving motor is arranged above the second circular table inside the oven main body. The tray containing the rubber is placed on the support main body by installing the first circular table, the second circular table, the driving motor and the extrusion mechanism. The support main body is clamped firmly by the extrusion mechanism of the first circular table. The first circular table moves upward. The lower surface of the second circular table contacts the upper surface of the support main body. The driving motor drives the rotation of the second circular table and the support main body. The hot air generated by the oven main body uniformly contacts the rubber.

The application relates to the technical field of high polymer materials, and discloses an antistatic shoe sole material and a preparation method thereof, which is made of ethylene-vinyl acetate copolymer, ethylene-propylene rubber, cationic POE-carbon nanotube hybrid master batch, dicumyl peroxide, azodicarbonamide and zinc oxide. The cationic POE-carbon nanotube hybrid master batch is prepared by the following steps: pre-compounding alkenyl epoxy functionalized imidazole didodecyl double cationic connecting agent with acidized carbon nanotubes, and then melt grafting the ethylene-octene copolymer thermoplastic elastomer by one-step method; and the epoxy group further reacts with the carboxyl group on the surface of the carbon nanotubes. The application can construct an electronic-ion synergistic conductive network, has low addition amount, long-term antistatic property and high resilience.

This invention discloses an environmentally friendly bio-based reinforcing compound and its preparation method. The compound, by weight, comprises: 100 parts EPDM rubber, 15-25 parts modified epoxidized soybean oil, 40-60 parts silane-modified rice husk ash silica, 2-2.5 parts peroxide, 1.5-2.5 parts crosslinking agent, and 5-7 parts additives. The modified epoxidized soybean oil is prepared by reacting epoxidized soybean oil with N-(2-hydroxyethyl)itaconic acid monoamide, followed by a reaction with a bio-based quaternary ammonium salt. This invention uses bio-based materials to replace traditional petroleum-based materials, resulting in excellent environmental performance. The introduction of modified epoxidized soybean oil significantly improves the compatibility and dispersibility of the bio-based reinforcing material with the rubber matrix, giving the compound excellent tensile strength, elongation at break, damping properties, antibacterial properties, and fatigue resistance. It can be widely used in automotive seals, shock absorbers, and other fields.

The application relates to the technical field of chemical protection materials, and discloses a hydrofluoric acid protective garment and a preparation method thereof. The material of the protective garment comprises a 5-layer structure, the middle layer is a framework fabric, and modified natural rubber layers and modified EPDM (ethylene propylene diene monomer) rubber layers are sequentially arranged on the two sides of the framework fabric. The raw materials of the modified natural rubber comprise, by weight parts, natural rubber 100 parts, sulfur 3-4 parts, accelerator M 1-2 parts, accelerator DM 1-2 parts, zinc oxide 4-6 parts, stearic acid 1-2 parts, white carbon black 10-15 parts, calcium oxide 20-40 parts, chlorinated paraffin 5-15 parts, antimony trioxide 5-15 parts and antioxidant 4010NA 1-2 parts. The modified natural rubber and the modified EPDM rubber are used as main protection substances, and organic solvents are used as carriers, so that the hydrofluoric acid protective garment not only has long-acting protection capability for hydrofluoric acid, but also has the characteristics of high mechanical strength, heat aging resistance, flame resistance and low-temperature softness.

The application relates to the technical field of rubber material production, in particular to an EPDM rubber material with self-adhesion after vulcanization and a preparation method thereof. The EPDM rubber material comprises the following components in mass fractions: 70-90 parts of EPDM raw rubber, 3-7 parts of modified resin, 2-9 parts of tackifying resin, 10-25 parts of porous nanometer carbon balls, 6-15 parts of polyester plasticizer, 3-6 parts of nanometer zinc oxide, 1-4 parts of stearic acid, 0.5-2 parts of anti-aging agent, 0.5-2 parts of accelerator and 0.5-3 parts of vulcanizing agent. The EPDM material has the characteristics of strong self-adhesion, no oil separation, high mechanical property and good heat-resistant stability. The modified resin is introduced into the EPDM raw rubber to crosslink with the EPDM raw rubber, the tackifying resin and the polyester plasticizer are used, the mechanical property, heat resistance and self-adhesion of the material are effectively improved, and the porous nanometer carbon balls are introduced to effectively improve the oil separation of the EPDM rubber material.

This invention relates to the field of insulating pull rod technology, specifically to a high-strength, moisture-proof, flexible insulating pull rod, its preparation method, and its application. The high-strength, moisture-proof, flexible insulating pull rod includes a load-bearing inner core, a moisture-proof insulating sheath, and end connectors. The load-bearing inner core comprises aramid cord, and a polyurethane layer and an epoxy resin layer sequentially covering the surface of the aramid cord. The moisture-proof insulating sheath is extruded and coated onto the outside of the load-bearing inner core. The moisture-proof sheath layer is made of EPDM rubber composite material, comprising the following parts by weight of raw materials: 80-100 parts EPDM rubber, 3-5 parts zinc oxide, 1-2 parts stearic acid, 5-8 parts zinc methacrylate, 10-15 parts mica nanosheets, 3-5 parts fluorine-modified aramid chopped fibers, 1-1.5 parts sulfur, and 2-3 parts antioxidant. The flexible insulating pull rod produced by this invention possesses both high strength and excellent moisture-proof performance, effectively promoting the construction and improvement of the live-line working industry.

This invention provides a drug delivery device pad. The pad comprises an elastic outer layer, a sealing middle layer, and a leak-proof inner layer stacked sequentially, with the three layers integrally connected by heat fusion, adhesive bonding, or welding. The elastic outer layer is made of silicone or polyurethane, providing flexible cushioning to prevent relative sliding with the drug delivery device; the sealing middle layer is made of EPDM rubber or hydrogenated nitrile rubber, enhancing pressure resistance and long-term sealing performance; the leak-proof inner layer is made of fluororubber or polytetrafluoroethylene, forming an inert protective layer to block the risk of drug adsorption or oxidation. The layers are connected by an interlocking structure and a locking block-slot physical locking method, achieving double fixation and preventing peeling. This invention balances elastic deformation and structural stability, effectively solving the problems of easy deformation and damage, poor sealing performance, and drug adsorption in traditional pads, significantly improving the sealing reliability and drug protection performance of the drug delivery device.

This invention discloses a high-resilience EPDM rubber sealing gasket and its preparation method, belonging to patent classification number C08K13 / 02, and relating to the field of EPDM rubber technology. The method first introduces flexible segments composed of liquid polyisobutylene and hydroxyl-terminated polybutadiene into an EPDM matrix to construct a low-energy-consumption subelastic network; then, a core-shell structure filler with silica as a rigid core and acrylate copolymer as an elastic shell is prepared to eliminate the rigid constraints of traditional filler interfaces; simultaneously, hyperbranched polyesteramide and nano-boron nitride are introduced as a synergistic system to bridge the polarity difference between the flexible segments and the core-shell filler through molecular bridging, and to reduce energy loss by utilizing the low friction and thermal conductivity of nano-boron nitride. The resulting sealing gasket exhibits high resilience, low compression set, and excellent mechanical strength.

This invention belongs to the field of resilient flooring technology, specifically relating to a processing method for environmentally friendly resilient flooring. This invention provides a processing method for environmentally friendly resilient flooring using polyolefins, EPDM rubber, halogen-free flame retardants, and surface-modified Ag / ZnO nanocomposite antibacterial agents as raw materials. Through processes such as mixing, extrusion, and irradiation treatment, the resulting environmentally friendly resilient flooring not only possesses excellent antibacterial and flame-retardant properties but also exhibits excellent wear resistance and aging resistance, and is environmentally friendly. This invention, through innovative research on the selection of flooring raw materials and key production technologies, has developed a functional, green, and environmentally friendly resilient flooring. This not only provides people with a healthy living environment during travel but also has significant practical implications for the industrial upgrading of high-quality flooring for my country's rail transit sector and for expanding the application fields of flooring.

This application discloses a segment sealing strip, relating to the field of tunnel engineering technology. The strip includes a main body and, through a multi-structure collaborative design, achieves a comprehensive improvement in waterproof performance and engineering applicability. The wavy EPDM rubber layer, with its undulating curved surface structure, constructs multiple three-dimensional water-blocking barriers, significantly enhancing waterproofing efficiency. The water-swellable rubber layer expands rapidly upon contact with water, filling tiny gaps and forming dynamic waterproof reinforcement. The internal pore design gives the strip excellent elastic deformation capability, adaptively adjusting its shape during segment compression and displacement to ensure the continuity and stability of the seal. The metal support skeleton enhances the overall rigidity of the strip, effectively resisting external impacts and deformation, maintaining the integrity of the sealing structure. The bottom protrusion, combined with anti-slip texture, achieves precise fitting and firm fixation with the segment groove, preventing misalignment during installation and curing, and ensuring long-term stable operation of the sealing system.

This invention relates to an EPDM-based crosslinked rubber material and its preparation method. The rubber material is obtained by vulcanizing raw rubber composed of EPDM rubber, maleic anhydride-grafted polyethylene, a peroxide vulcanizing agent, ethylene glycol dimethacrylate, p-benzoquinone dioxime, lead metal oxide, paraffin oil, a silane coupling agent, and an antioxidant. The EPDM-based crosslinked rubber material obtained by this invention has a double crosslinked structure. The formulation system endows EPDM rubber with excellent physical and mechanical properties, electrical insulation properties, and aging resistance, while also possessing good injection molding performance. This material solves the problems of high prices and long procurement cycles associated with imported finished products, providing an efficient and economical solution for the production of cable accessories.

The application discloses a processing method of a high-temperature-resistant EPDM rubber pipe, and comprises the following steps: S1: taking EPDM 100-200 parts, plasticizer 1-3 parts, stearic acid 0.5-1 part, zinc oxide 4-5 parts, magnesium oxide 4-10 parts, carbon black 80-120 parts, white carbon black 10-20 parts, softening oil 25-60 parts, anti-aging agent 1-3 parts, peroxide 1-5 parts and auxiliary cross-linking agent 4-8 parts; the peroxide vulcanization system is adopted, and the plasticizer, stearic acid, zinc oxide, magnesium oxide, carbon black, white carbon black, softening oil, anti-aging agent, peroxide and auxiliary cross-linking agent and other components are added, so that the obtained rubber pipe has good high-temperature resistance, weather resistance and tensile resistance, and the service life of the rubber pipe used in an automobile can be significantly prolonged.

This invention relates to the field of rubber materials technology. It provides a high-strength, low dynamic ratio EPDM rubber material and its preparation method. The raw materials for the EPDM rubber material, by weight, include: 140-200 parts of EPDM raw rubber, 70-80 parts of filler, 5-40 parts of plasticizer, 2.0-3.0 parts of antioxidant, 1.0-3.0 parts of processing aid, 0.3-0.8 parts of vulcanizing agent, 3.0-4.0 parts of accelerator, 4-6 parts of zinc oxide, and 1.0-2.0 parts of stearic acid. The EPDM raw rubber is oil-extended EPDM rubber, with an oil content of 40-100 parts. This invention provides a high-strength, low dynamic ratio EPDM rubber material with high strength and low dynamic ratio, significantly improving the NVH performance and service life of the product. It can meet the functional requirements of current new energy vehicles for vibration damping rubber products, such as vibration reduction, noise reduction, high load-bearing capacity, and high durability.

This invention belongs to the technical field of automotive sealing rubber materials, specifically relating to a micro-foamed solid rubber and automotive sealing strips. The micro-foamed solid rubber uses two types of EPDM rubber with specific Mooney viscosity, ethylene content, and ENB content as the raw rubber system, combined with a microporous foaming system containing a thermally expanding microsphere foaming agent, and an optimized filling, softening, and vulcanization system. Through the synergy of the above formulation and preparation process, the rubber compound forms a uniform microporous closed-cell structure during vulcanization. The resulting micro-foamed solid rubber significantly reduces density, achieves lightweighting, and reduces material consumption while maintaining good mechanical strength and excellent dimensional stability, and is not easily shrunk or deformed after molding. The resulting automotive sealing strips can balance the advantages of low density and cost reduction with the requirements of high structural strength and high assembly precision, making them particularly suitable for sealing applications in automotive doors and other parts.

This invention relates to the field of polymer materials technology, and discloses a high-elasticity rubber-plastic insulated cable composite material and its preparation method. The high-elasticity rubber-plastic insulation material comprises, by weight, 40-50 parts of EPDM rubber, 20-25 parts of polyolefin elastomer, 30-35 parts of modified calcined kaolin, 3-5 parts of composite antioxidant, 2-3 parts of silane coupling agent, and 1.5-2 parts of vulcanizing agent. During preparation, EPDM rubber and polyolefin elastomer are kneaded for 5-8 minutes, then modified calcined kaolin and silane coupling agent are added and kneaded for another 8-12 minutes, followed by the addition of composite antioxidant and vulcanizing agent and kneading for 3-5 minutes. Finally, the mixture is vulcanized in stages. The first stage vulcanization temperature is 155-160℃, and the second stage vulcanization temperature is 165-170℃. The insulating material prepared by this invention has excellent elasticity, outstanding resistance to flexural fatigue, stable insulation performance, high volume resistivity, excellent aging resistance, and tight interfacial bonding. It is suitable for use in high-voltage cable insulation layers, effectively extending the service life and stability of the cable.

This invention relates to the field of spherical nuclear fuel element molding technology, specifically to an isostatic pressing molding die and a method for preparing spherical fuel element blanks. The isostatic pressing molding die includes an isostatic pressing core ball mold for pressing the core ball and an isostatic pressing molding die for pressing the spherical fuel element blank. It consists of at least a die body and an inverted conical top cover for closing the opening of the die body. After mold closing, both the internal cavity and the external shape are spherical. The die material is one of nitrile rubber, silicone rubber, EPDM rubber, natural rubber, and polyurethane. When preparing spherical fuel element blanks using this die, nuclear fuel and matrix graphite powder are first filled into the die body of the core ball mold and stirred evenly. After mold closing, it is vacuum-sealed and isostatically pressed to obtain the core ball. Then, the core ball and matrix graphite powder in the fuel element blank mold are loaded, vacuum-sealed, and isostatically pressed to obtain the spherical fuel element blank. This invention provides convenient material loading, easy demolding, and reusability of the die, and also helps improve the isotropy and molding quality of the spherical fuel element blank.

The application discloses an insulating anti-ultraviolet EPDM rubber composite material and a preparation method and application thereof. The material comprises the following preparation raw materials in parts by weight: 100 parts of EPDM rubber, 10-30 parts of titanium white powder, 30-80 parts of nano insulating filler, 2-5 parts of vulcanizing agent, 1-4 parts of vulcanization accelerator, 0.5-2 parts of antioxidant, 2-5 parts of nano cerium oxide, 0.5-2.5 parts of ultraviolet absorber, and 0.5-2 parts of light stabilizer. The antioxidant comprises a hindered phenol type antioxidant and a phosphite antioxidant. The ultraviolet absorber is a benzotriazole ultraviolet absorber. The vulcanization accelerator comprises triallyl isocyanurate and sulfur. The material has excellent mechanical properties and electrical insulation properties, and can still maintain high stability of mechanical properties and electrical properties under the conditions of thermal oxygen aging and ultraviolet aging. The material is particularly suitable for the field of outdoor cable accessories such as cable joints and terminals which have high reliability requirements.

This invention relates to the field of rubber technology, specifically to a rubber sealing strip and its preparation method. The rubber sealing strip, by weight, comprises the following components: 50-70 parts EPDM rubber, 30-50 parts nitrile rubber, 15-25 parts core-shell composite filler, 5-10 parts carbon black, 3-8 parts modified boron nitride nanosheets, 1.5-3 parts peroxide vulcanizing agent, 1-2 parts co-crosslinking agent, 1-2 parts antioxidant, and 1-3 parts lubricant; wherein the core-shell composite filler is a composite material with porous nano-silica as the core, an organosiloxane network, and embedded nano-tungsten disulfide as the shell. The rubber sealing strip provided by this invention solves the problems of insufficient mechanical properties, wear resistance, and thermal stability, as well as poor filler dispersion in traditional rubber sealing strips; it improves the tensile strength, wear resistance, and heat aging resistance of the rubber.

This invention discloses a zinc-free, sulfur-free, and halogen-free flame-retardant EPDM rubber compound and its preparation method, belonging to the field of EPDM rubber compound preparation technology. The rubber compound is prepared from raw materials comprising the following components by weight: 100 parts EPDM rubber; 2-8 parts activator; 30-100 parts reinforcing filler; 40-120 parts halogen-free flame retardant; 2-8 parts crosslinking agent; 1-5 parts co-crosslinking agent; 1-5 parts antioxidant; and 1-15 parts plasticizer. This invention optimizes the proportions of each component without relying on additional heavy metal activating agents or using a sulfur vulcanization system, improving the compound's resistance to coolant swelling, reducing the amount of small molecule precipitation, and enhancing its insulation and flame-retardant capabilities, making it suitable for the long-term service conditions of data center liquid-cooled hoses.

This invention discloses an aerogel-infused composite frame low-carbon energy-saving glass window, belonging to the field of building energy-saving doors and windows technology, including a composite frame, a thermal insulation filling system, a sealing and protection system, and insulated laminated glass (12). The composite frame consists of a GB / T6063 aluminum alloy outer frame (1), an inner frame (5), and a PA66 thermal insulation strip (2). The core cavity is vacuum-infused with a nano-silica aerogel layer (4), and the auxiliary cavity is filled with a polyurethane foam layer (3). The sealing and protection system is a "quadruple sealing + cold bridge blocking" structure, including EPDM rubber strips (7, 6, 15), silicone sealant (10, 11), foam rods (9), and thermal insulation sponge (14). The insulated laminated glass (12) has the following specifications: 3+0.76Pvb+3+14AR+5 super single silver+14AR+5 super single silver. This design makes the overall window heat transfer coefficient ≤0.6W / (m²). 2 ·K), with air tightness reaching level 8 of GB / T 7106-2019 standard and water tightness reaching level 6, effectively blocking cold bridges and heat transfer, reducing building energy consumption, and suitable for all types of buildings, especially ultra-low energy consumption buildings.

This invention relates to the field of rubber materials technology, and proposes a high-temperature resistant hydraulic brake hose and its preparation method. A high-temperature resistant hydraulic brake hose comprises, from the inside out: an inner rubber layer, a first reinforcing layer, a middle rubber layer, a second reinforcing layer, and an outer rubber layer; both the inner and outer rubber layers are composed of rubber compounds, which include the following raw materials in parts by weight: 100 parts EPDM rubber, 20-30 parts fluorosilicone rubber, 50-70 parts modified carbon black, 13-15 parts first silica, 4-6 parts first zinc oxide, 2-3 parts first stearic acid, 5-10 parts first plasticizer, 1-2 parts dicumyl peroxide, 3-5 parts first accelerator, and 2-4 parts antioxidant; the modified carbon black is obtained by modifying the first carbon black with thiosalicylic acid. This technical solution solves the problem of poor high-temperature resistance in hydraulic brake hoses in related technologies.

This utility model relates to the field of electronic equipment protection technology and discloses a composite structure device for waterproof sealing and quick locking of external equipment, including a cabinet and a door. The cabinet includes a shell with a support base below it, and the door includes a door panel. This utility model effectively solves the problem of easy aging and failure of traditional sealing structures through multiple sealing designs and the application of weather-resistant materials. A multi-lip sealing strip made of EPDM rubber is tightly fitted to the door panel; its hollow cross-section structure can generate adaptive deformation under pressure, compensating for gaps caused by mechanical stress or temperature changes, ensuring long-term sealing stability. An additional sealing plate and sealing groove are interlocked to form a second waterproof barrier, preventing water infiltration even if the main sealing strip partially fails. Furthermore, a drainage groove designed at the bottom can quickly drain accumulated water, preventing liquid stagnation and corrosion of the sealing surface.

This invention discloses a white, smooth-surface rubber extrusion tube and its preparation method. Using EPDM rubber as the matrix, activators, softeners, reinforcing fillers, modified phenolic resin, lubricants, white pigments, coupling agents, and vulcanization accelerators are added. These materials are mixed in a rubber mixing mill to form a mixed elastomer, which is then extruded into a pre-formed rubber tube in an extruder. The tube is then vulcanized in a vulcanizing tank to become the final product. Extruded rubber products (except silicone) are generally black, mainly because carbon black has good compatibility with rubber, which is beneficial for extrusion. Light-colored or white extruded rubber products often have poor compatibility with the fillers, resulting in rough surfaces or incomplete extrusion. This invention solves the problem of rough surfaces or incomplete pre-forming in light-colored or white rubber extrusion products, meeting different customer needs and enriching the diversity and choice of product colors.

A roofing membrane comprising a cured EPDM rubber matrix having protein-containing powder dispersed therein.

The application discloses a UV insulation protective adhesive tape for new energy batteries and a preparation process thereof, and relates to the technical field of adhesives. Specifically, the process comprises the following steps: S1: uniformly mixing epoxy resin, epoxy acrylate, a photobase generator, a photosensitizer, a free radical inhibitor, dipropylene glycol diacrylate, pentaerythritol tetra-3-mercaptopropionate, a mercapto-modified ternary ethylene-propylene rubber, a fluorine-containing modifier and an organic solvent to obtain a UV adhesive; S2: coating the UV adhesive on an insulation base film, curing at 90-110 DEG C for 5-8 min to obtain an adhesive layer, and compounding a release film on the surface of the adhesive layer to obtain the UV insulation protective adhesive tape for new energy batteries; and the UV insulation protective adhesive tape prepared by the application is of a delayed curing type and has excellent insulation and chemical corrosion resistance.