53results about How to "Increase the gel content" patented technology

The invention discloses a cable sheath material for a coal mine, which is characterized by comprising the following raw materials for preparing effective constituents according to the parts by weight: 70-100 of butyronitrile-polyvinyl chloride compound, 10-30 of neoprene, 30-60 of white carbon black, 2-8 of magnesium oxide, 20-60 of aluminum hydroxide, 30-60 of chlorcosane, 2-6 of accelerant CZ, 3-8 of zinc oxide, 1-5 of stearic acid, 3-8 of age inhibitor, 4-15 of diantimony trioxide, 2-7 of titanium pigment and 3-9 of vulcanizing agent. The cable sheath material for the coal mine has better performance of stink resistance, cold resistance, flame resistance, oil resistance, ageing resistance, and the like and has good elasticity, high tensile strength, good tear resistance, good extrusion performance and low cost.

The invention relates to a decoration sheet material, and concretely relate to an inorganic high-pressure fireproof wear-resistant decorative plate and a production method thereof. The decorative plate comprises a fireproof substrate, a buffer layer is arranged on the fireproof substrate, a decorative layer is arranged on the buffer layer, a wear-resistant protection layer is arranged on the decorative layer, the fireproof substrate is made by an inorganic non-combustible sheet material pressurized and impregnated by thermosetting alcohol-soluble phenolic resin; and the buffer layer is made by brown paper impregnated by thermosetting melamine resin adding a fire retardant and coated with alcohol-soluble phenolic resin on the back. The decorative plate has the advantages of water resistance, impact resistance, good size stability, high tensile strength and anti-folding intensity, pollution resistance on the surface, wear resistance, scratch resistance, no combustion encountered with fire, self extinguishing after away from the fire, good stability under high temperature, no decomposition of released asphyxiating toxic gasand smog, simple subsequent processing, sawing, no edge-breaking while boring, and no fragmentation.

The invention relates to a transmission belt base rubber which comprises fullerene nano/micro fibers. The transmission belt base rubber comprises the following components in parts by mass: 70-100 parts of chloroprene rubber, 6-17 parts of ethylene propylene diene monomer rubber, 0.005-0.03 part of fullerene nano/micro fiber, 5-15 parts of aromatic oil, 45-65 parts of reinforcing agent, 0.6-1.8 parts of hardening agent, 0.05-0.22 part of accelerator, 20-45 parts of filler and 4-10 parts of vulcanizing agent. The invention also relates to a preparation method of the transmission belt base rubber. The chopped-fiber-reinforced CR (chloroprene rubber) is reinforced directionally by the transverse chopped fibers of the transmission belt, thereby achieving the excellent transverse side pressure and longitudinal flexibility of the transmission belt.

The invention relates to a high-hardness rubber composite for a minitype automobile chassis buffer block. The composite is characterized in that: the composite is prepared from the following raw materials in part by weight: 70 parts of natural rubber, 30 parts of synthetic rubber, 1.5 to 2.5 parts of p-phenylenediamine-kind age resister, 1.5 to 2.5 parts of dihyaroquinoline-kind age resister, 1 to 3 parts of physical age resister, 5 to 10 parts of plasticizer, 45 to 60 parts of reinforcing agent, 3 to 5 parts of dispersant, 10 to 15 parts of high styrene reinforced resin, 1.5 to 2.0 parts of vulcanizing agent, 5 to 8 parts of active agent, 1 to 2 parts of stearic acid, and 1.6 to 2.0 parts of accelerating agent. The high-hardness rubber composite for the minitype automobile chassis buffer block has the advantage of difficult deformation.

The invention discloses a preparing method of a thermoplastic resin matrix carbon fiber-titanium/titanium alloy laminate plate, and belongs to the field of light composite materials. The technical purpose is to solve the problem that currently the interface glue joint effect of titanium alloy of carbon fiber reinforcement titanium alloy laminate plate TiGr and a prepreg is poor. The thermoplastic resin comprises three kinds of high-performance thermoplastic resin including polyether-ether-ketone (PEEK), polyphenylene sulfide (PPS) and polyetherimid (PEI), with the coordination of a film laminating method and a powder impregnation method, the problem that the impregnation effect of the thermoplastic resin on carbon fiber is poor is solved.

The invention provides a formula of an eccentric wear-resistant oil pipe and a production process. The preparation raw materials comprise glass fiber yarn, an epoxy resin, a curing agent, a flexibilizer and a flatting agent. The formula is characterized in that: the epoxy resin is a bisphenol A epoxy resin; the curing agent is acid anhydride or modified aromatic amine; the weight ratio of the bisphenol A epoxy resin to the acid anhydride is 100:80-100; the best weight ratio of the bisphenol A epoxy resin to the acid anhydride is 100:83; and the eccentric wear-resistant oil pipe has the advantages of good mechanical and physical performance, good corrosion resistance, high temperature resistance, long service life and good flow property of a medium, no scale, no wax deposition, difficult blockage and the like.

The invention discloses a vertical two-impregnation one-scraping polyester-mixed cotton cloth impregnator, belongs to the technical field of impregnation, and particularly relates to the vertical two-impregnation one-scraping polyester-mixed cotton cloth impregnator. The impregnator comprises a machine base, wherein a first impregnation mechanism used for impregnating polyester-mixed cotton cloth,a second impregnation mechanism used for adding rubber to the polyester-mixed cotton cloth and a rubber scraping mechanism used for scraping rubber cement on one side of the polyester-mixed cotton cloth are arranged on the machine base, the impregnator further comprises a traction mechanism used for conveying the polyester-mixed cotton cloth to the first impregnation mechanism and a winding device used for collecting the polyester-mixed cotton cloth discharged from the second impregnation mechanism, and the rubber scraping mechanism comprises a scraper fixed to the machine base through a moving device. The impregnator is simple in structure and high in practicability.

The invention provides solid silicon rubber and a preparation method thereof. The solid silicon rubber is prepared from the following components in parts by weight: 100 parts of raw silicon rubber, 30-60 parts of white carbon black, 2-10 parts of anti-tearing additive, 0.4-1.2 parts of vulcanizing agent, 1-2 parts of carbon nanotube, 10-40 parts of acetylene carbon black, 2-5 parts of white carbonblack dispersing additive and 2-7 parts of anti-thermooxidative-aging additive, wherein the anti-tearing additive is vinyl silicon oil. The solid silicon rubber and the preparation method provided bythe invention have the beneficial effects that due to addition of the vinyl silicon oil, the anti-tearing property of the solid silicon rubber can be well improved; meanwhile, by reuse of the carbonnanotubes and the acetylene carbon black, the volume resistivity of the solid silicon rubber can be greatly reduced, i.e., the conductivity of the solid silicon rubber can be improved; in addition, the solid silicon rubber prepared according to the proportion can meet the requirements of the solid silicon rubber for cable accessories in multiple respects of mechanical strength, anti-tearing strength and conductivity and the like in the power industry simultaneously.

The invention discloses a fuzzing roller rolled by a carbon fiber composite material in a two-step method. The fuzzing roller comprises a roller body of the fuzzing roller and shaft heads, wherein the shaft heads are arranged at the two ends of the roller body. A preparation method for the fuzzing roller comprises the following steps of: firstly, winding a carbon fiber preimpregnated cloth on a designed mould core rod to make a carbon fiber inner lining tube for later use; coating an adhesive in adhesion sections of the shaft heads; inserting the adhesion sections into the carbon fiber inner lining tube for adhering; and finally winding the carbon fiber preimpregnated cloth again by using the carbon fiber inner lining tube as a core rod and covering reinforcing shaft shoulders of the shaft heads into the carbon fiber inner lining tube at the same time to perform the steps of curing coarse processing, refine processing and coating to finally prepare the fuzzing roller serving as a finished product. The fuzzing roller is light in weight, and good in linearity degree, fatigue resistance and rigidity, so that the binding of the carbon fibers and resin is high, and the compactness is high; and because the binding strength of the fuzzing roller is greatly higher than that manufactured in a one-step method, and the service life of the fuzzing roller is prolonged. The carbon fiber composite material and the metal shaft heads are adhered by coating for twice, so that a contact surface of a carbon fiber tubular wall and the metal shaft heads is enhanced, the adhesion is firm, and the integral strength of the fuzzing roller of the carbon fiber composite material is greatly improved.

The invention relates to a method for increasing the gel content of eucommia ulmoides. The method includes the following steps: firstly, phloem of eucommia ulmoides bark is peeled off to form multiple cells, and cambium on the surface is exposed out in an interval cell shape; secondly, the dip dyeing operation is conducted, wherein bacterium liquid cultivated through single agrobacterium colonies containing EuTIDS5 recombinant expression vectors is picked to infect the cambium on the surface of peeled eucommia ulmoides; and thirdly, the peeled face is wrapped with a plastic film after peeling and infecting are conducted, and moisture preservation and sun protection growth is achieved. The infecting method is simple, feasible and excellent in gel content increasing effect.

The invention discloses a forming process of a carbon fiber and phenolic resin composite material. The forming process of the carbon fiber and phenolic resin composite material comprises the followingsteps of 1) preparing prepreg; 2) coating; 3) manufacturing a product mold cavity mold, and coating a mold release meter on the surface of the mold; 4) carbon fiber composite material enters a heating guide mechanism through a conveyor belt, and putting the carbon fiber composite material into the mold cavity mold after being heated; 5) pre-heating the mold cavity mold, and vacuumizing the mold at the same time; and 6) carrying out hot press molding in a vacuum environment, and demolding after cooling to obtain a molded product of the carbon fiber and the phenolic resin composite material. According to the forming process of the carbon fiber and phenolic resin composite material, the porosity can be effectively reduced, the operation is simple, and the cost is low.

The invention provides a rubber wheel for a trolley and a production process of the rubber wheel. The rubber wheel comprises a rubber wheel body, wherein the rubber wheel body comprises a rubber outerring and a hub; the rubber outer ring wraps the outer side of the hub. The inner part of the rubber outer ring is hollow and annular; an elastic rod is arranged in the hollow cavity; a groove is formed in the end face of the outer circle of the hub. Antiskid spikes are arranged in the grooves; the anti-skid spikes are in contact with the rubber outer ring; the face, making contact with the rubberouter ring, of the groove is coated with a bonding layer. The problems that a hub and a rubber outer ring of a wheel of a traditional trolley are generally produced separately, then the produced hubis sleeved with the rubber outer ring to form the wheel, the hub and the rubber outer ring of the wheel are separated, the rubber outer ring is connected to the outer ring of the hub in a sleeving mode and is prone to falling off, and consequently the hub is damaged are solved.

The invention discloses a light rubber boot vamp rubber compound. Rubber materials comprise natural rubber, high styrene rubber, thermoplastic styrene butadiene rubber, sulfur, stearic acid, activatedzinc oxide, antiaging agent MB, antiaging agent 264, light white carbon black, hollow glass beads and phenolic resin, the specific gravity of the light white carbon black is 1.2 to 1.5, and the specific gravity of the hollow glass beads is 0.18 to 0.21; the light rubber boot vamp rubber compound has the characteristics of high adhesive content and light specific gravity, and the tensile strengthis greater than or equal to 14Ma, the extension is greater than or equal to 500%, the light rubber boot vamp rubber compound is used for special protective rubber boots (such as various industrial andmining boots); the weight up to 2.4 Kg-3. 4Kg of one pair of original protective rubber boots can be successfully reduced to about 2.2 Kg-3. 1Kg; for miners with very large daily walking amount and workload, the load is obviously reduced, and under the conditions of high glue content and small reinforcing agent dosage, the protective boots have small calendering shrinkage, clear patterns and goodvamp stiffness, and the problems of large calendering shrinkage, unclear patterns, poor vamp stiffness and the like caused by the high glue content, small reinforcing agent dosage and the like are solved.

The invention provides a method for producing environment-friendly high-strength butyl-reclaimed rubber under a high-temperature and normal-pressure condition. According to the method, a waste butyl rubber inner tube with the tensile strength being 8.5-10.0 MPa is selected, waste butyl rubber powder is added into a double-screw extruder connected with a vacuum device, no softener or regeneration activator is added, continuous high-temperature desulfuration is conducted, and in the continuous high-temperature desulfuration process of the double-screw extruder, toxic and harmful substances such as polycyclic aromatic hydrocarbon in rubber materials are collected, absorbed and treated through the vacuum device. In addition, no softener or regeneration activator is added in the regeneration process of the waste butyl rubber, and the pollution problem of reclaimed rubber preparation is well solved. The reclaimed rubber produced through the method is good in mechanical property and physical and chemical property.