46 results about "Diacetyl peroxide" patented technology

The invention relates to a rubber seal material formula which comprises 25 parts of hydrogenated nitrile-butadiene rubber, 70 parts of chloroprene rubber, 50 parts of acrylate rubber, 20 parts of silicon rubber, 30 parts of polyurethane rubber, 3 parts of plasticizer, 2 parts of softening agent dioctyl ester, 2 parts of activator zinc oxide, 1 part of oleyl alcohol, 9 parts of sulfur, 1 part of diacetyl peroxide, 2 parts of hydroxy silicon oil, 2 parts of alumina, 8 parts of flame retardant and 2 parts of anti-aging agent sulfydryl benzimidazole. Compared with the prior art, the rubber seal material provided by the invention can bear higher pressure, has the advantages of low friction factor and high abrasion resistance; and more scientific and reliable proportioning is performed in the vulcanization system and filler system to better display the synergistic action and prolong the normal working time of mechanical equipment.

The invention provides an oil resistant rubber material. The oil resistant rubber material comprises the following components in parts by weight: 60-70 parts of butadiene-acrylonitrile rubber, 25-35 parts of fluororubber, 5-10 parts of dioctyl tin maleate, 2-3 parts of glass fibers, 1-2 parts of stearic acid, 0.5-0.8 part of light calcium carbonate, 3-5 parts of magnesium dimethacrylate, 2-3 parts of drying oil alkyd resin, 1-2 parts of paraffin, 3-5 parts of dilauryl thiodipropionate, 1-2 parts of diacetyl peroxide, 0.8-1.2 parts of zinc oxide, 8-10 parts of aluminium oxide, 6-8 parts of white carbon black, 0.8-1.5 parts of anti-aging agent and 1-3 parts of sulfur. The invention also provides a preparation method of the oil resistant rubber material. The oil resistant rubber material has good sealability, high temperature resistance and oil resistance and is suitable for sealing automobile gearboxes.

The invention provides a rubber sealing material. The rubber sealing material consists of the following components in parts by mass: 80-90 parts of hydrogenated butadiene-acrylonitrile rubber, 25-35 parts of acrylate rubber, 3-5 parts of oleyl alcohol, 10-12 parts of diacetyl peroxide, 3-5 parts of aluminum oxide, 5-8 parts of zinc oxide, 6-8 parts of high wear resistant carbon black, 0.3-2 parts of an anti-aging agent, and 3-5 parts of sulfur. The rubber sealing material provided by the invention can bear the pressure of 410 Mpa, and has the advantages of low friction coefficient (0.20-0.22) and strong wear resistance.

The invention provides a sealing material with long service life under high pressure. The sealing material consists of the following components in parts by mass: 100-110 parts of hydrogenated butadiene-acrylonitrile rubber, 3-5 parts of stearic acid, 3-5 parts of allyl alcohol, 8-10 parts of diacetyl peroxide, 10-15 parts of aluminum oxide, 6-8 parts of white carbon black, 0.5-2 parts of anti-aging agent and 1-3 parts of sulfur. The sealing material provided by the invention has strong mechanical strength, low friction coefficient (0.20-0.22), strong wear resistance and long service life (4-5 months) under high-temperature (capable of working at 200 DEG C) and high-pressure (capable of bearing 400MPa pressure) working conditions.

The invention provides a high-pressure-resistant sealing material prepared with the components of, by mass, 85-95 parts of hydrogenated nitrile rubber, 15-20 parts of natural rubber, 5-8 parts of diacetyl peroxide, 1-2 parts of octyltin maleate, 5-8 parts of stearic acid, 1-2 parts of allyl alcohol, 5-8 parts of drying oil alkyd resin, 4-6 parts of methyl hydrogen silicone oil, 2-3 parts of ethylene glycol, 1-2 parts of paraffin, 1-2 parts of diethanolamine borate, 0.8-1.2 parts of calcium carbonate, 3-6 parts of alumina, 3-5 parts of white carbon black, 0.5-2 parts of an anti-aging agent, and 1-3 parts of sulfur. The invention also provides a preparation method of the material. The sealing material provided by the invention has low friction coefficient (0.21-0.23), and has a long service life (110-130 days) under working conditions with high temperature (210 DEG C) and high pressure (280MPa).

The invention provides a rubber material for sealing an automobile window. The rubber material is composed of the following components in parts by mass: 65-70 parts of natural rubber, 20-30 parts of chloroprene rubber, 3-5 parts of stearic acid, 2-3 parts of methyl hydrogen silicon oil, 3-5 parts of zinc methacrylate, 0.5-0.8 part of calcium carbonate, 0.4-0.6 part of oleic diethanolamine borate, 4-6 parts of magnesium dimethacrylate, 3-5 parts of drying alkyd resin, 1-2 parts of paraffin, 1.2-1.8 parts of zinc diethyldithiocarbamate, 2-4 parts of diacetyl peroxide, 8-10 parts of aluminum oxide, 6-8 parts of white carbon black, 0.5-2 parts of an anti-ageing agent and 1-3 parts of sulfur. The invention also provides a preparation method of the rubber material. The rubber material provided by the invention has favorable ageing resistance and high-temperature resistance and can be favorably applied to sealing of the automobile window.

The invention discloses a rubber sealing material. The rubber sealing material is prepared from components in parts by mass as follows: 45-70 parts of chloroprene rubber, 12-22 parts of melamine, 10-20 parts of trimethyl siloxane, 3-6 parts of nano calcium phosphate, 4-8 parts of ammonium benzoate, 3-8 parts of calcium oxide, 15-30 parts of acrylate rubber, 0.5-0.9 parts of stannous octoate, 5-10 parts of allyl alcohol, 7-12 parts of diacetyl peroxide, 4-9 parts of zinc oxide, 0.6-1.5 parts of an anti-aging agent, 3-5 parts of sulfur, 2-7 parts of vinyl silicone resin, 0.6-1.5 parts of zinc stearate, 5-9 parts of glycerol triacetate, 4-9 parts of maleic anhydride, 3-8 parts of dodecylbenzene sulfonic acid, 3-6 parts of calcium propionate and 0.3-0.8 parts of a coupling agent. Compared with the prior art, the rubber sealing material is high in abrasion resistance and high-temperature resistance and can bear relatively high pressure, and the service life of the rubber sealing material can be prolonged.

The invention provides a rubber sealing material for an automobile. The rubber sealing material is composed of the following components in parts by mass: 65-70 parts of natural rubber, 20-30 parts of chloroprene rubber, 2-3 parts of stearic acid, 2-3 parts of methyl hydrogen silicon oil, 0.3-0.5 part of ethylene glycol, 0.5-0.8 part of calcium carbonate, 0.6-0.8 part of oleic diethanolamine borate, 4-6 parts of magnesium dimethacrylate, 3-5 parts of drying alkyd resin, 1-2 parts of paraffin, 1.3-1.6 parts of diethanolamine borate, 2-4 parts of diacetyl peroxide, 8-10 parts of zinc oxide, 6-8 parts of white carbon black, 0.5-2 parts of an anti-aging agent and 1-3 parts of sulfur. The invention also provides a preparation method of the rubber sealing material. The rubber sealing material for the automobile, provided by the invention, has favorable fatigue resistance and is suitable for sealing all parts of the automobile.

The invention discloses a rubber sealing composite material and a preparation method of the rubber sealing composite material. The rubber sealing composite material comprises the following componentsin parts by mass: 50 to 80 parts of chloroprene rubber, 20 to 30 parts of vinyl silicone resin, 30 to 50 parts of fluorine ether-modified nitrile rubber, 40 to 60 parts of low-polymerization polyethylene, 5 to 12 parts of carbon fibers, 3 to 7 parts of trimethylsiloxane, 3 to 8 parts of nano-silicon nitride, 1 to 3 parts of tert-butyl peroxybenzoate, 5 to 9 parts of benzoic acid amine, 2 to 7 parts of calcium oxide, 3 to 9 parts of nano-silica, 1 to 3 parts of stannous octoate, 6 to 12 parts of diacetyl peroxide. 3 to 7 parts of white carbon, 1 to 3 parts of an antioxidant, 2 to 5 parts of sulfur, 0.8 to 1.8 parts of zinc stearate, and 1 to 5 parts of a coupling agent. Compared with the prior art, both aging resistance and fatigue resistance of the rubber sealing composite material are greatly enhanced, and service performances of the of the rubber sealing composite material are improved effectively.

The invention provides rubber sealing materials. The rubber sealing materials are formed by the following components of, by mass, 40 to 45 parts of acrylate rubber, 15 to 20 parts of hydrogenated nitrile-butadiene rubber 15-20, 3 to 5 parts of stearic acid, 0.8 to 1.2 parts of methyl hydrogen silicone oil, 0.5 to 0.8 part of glass fibers, 2 to 3 parts of oleic acid diethanolamine borate ester, 4 to 6 parts of diacetyl peroxide, 2 to 3 parts of aluminum oxide, 1.2 to 1.6 parts of light calcium carbonate, 0.6 to 0.9 part of drying oil alkyd resin, 6 to 8 parts of white carbon black, 0.5 to 2 parts of anti-aging agent and 2 to 3 parts of sulfur. According to the rubber sealing materials, the mechanical strength is high, the friction coefficient which is 0.19 to 0.21 is low, the abrasion resistance is high, and the 140 to 170 days of service life under the high temperature and the high pressure working conditions is long, wherein the rubber sealing materials can work at 200 DEG C and the 420 MPa pressure can be borne.

The invention provides efficient fireproofing sealant for constructions. The sealant is prepared from the following raw materials in parts by weight: 2-4 parts of allyl alcohol, 0.8-2.3 parts of stearic acid, 0.5-1.5 parts of diacetyl peroxide, 0.6-1.2 parts of an anti-aging agent, 8-16 parts of rutile titanium dioxide, 4-7 parts of ground calcium carbonate, 1-3 parts of sodium hexametaphosphate, 6-12 parts of a thickening agent, 10-16 parts of rutile titanium dioxide, 18-35 parts of polyacrylic emulsion resin, 7-14 parts of flexibilizer, 2-4 parts of a thixotropic agent, 3-8 parts of nitrile rubber, 1-4 parts of illite powder, 1-2 parts of bamboo charcoal fibers and 4-7 parts of nano-calcium carbonate. The efficient fireproofing sealant has the beneficial effects of excellent elasticity, abrasion resistance, good flame-retardant and fireproofing performance, small corrosion for matrix, excellent adhesion and no pollution.

The invention relates to a research on a synthetic condition of a lignosulfonate modified polycarboxylate superplasticizer. The research on the synthetic condition of the lignosulfonate modified polycarboxylate superplasticizer is characterized by being prepared by performing condensation on lignosulfonate, polyethylene glycol monomethyl ether metacrylic acid ester, acrylic acid and methacrylic acid sodium sulfonate in a ratio of (9-15 percent): (1-5 percent): (5-30 percent): (1-5 percent). An operation method comprises the following steps: mixing lignosulfonate, polyethylene glycol monomethyl ether metacrylic acid ester, acrylic acid and methacrylic acid sodium sulfonate in the ratio to prepare an aqueous solution with certain mass percentage (the mass percentage of water is 70-90 percent); preparing a diacetyl peroxide initiator into an aqueous solution and slowly dropwise adding the two solutions into a three-mouth flask by using a constant pressure dropping funnel; performing reaction for 2-10 hours at the temperature of 60-120 DEG C after the dropping is completed; cooling the system to be at room temperature after the reaction is completed, and regulating pH of the system to be 8-12 by using a sodium hydroxide solution to obtain the lignosulfonate modified polycarboxylate superplasticizer.

The invention provides a high-pressure-resistant sealing material which consists of the following components in parts by mass: 50-60 parts of natural rubber, 15-20 parts of hydrogenated butadiene-acrylonitrile rubber, 3-5 parts of stearic acid, 1-2 parts of allyl alcohol, 1-2 parts of methyl hydrogen silicone oil, 0.5-0.8 part of oleyl alcohol, 4-6 parts of diacetyl peroxide, 3-5 parts of aluminum oxide, 1.2-1.6 parts of calcium carbonate, 0.6-0.9 part of dry oleyl alcohol acid resin, 6-8 parts of white carbon black, 0.5-2 parts of an anti-aging agent and 2-3 parts of sulfur. The high-pressure-resistant sealing material can bear the pressure of 410MPa, and the friction coefficient is low (0.20-0.22); the abrasion resistance is high.

The invention relates to a high voltage resistant protection cover of a motor protection controller. The materials of the the protection cover are composed of, by weight, 1-4 parts of silicate, 10-30 parts of aluminum oxide, 5-9 parts of carbon steel, 1-2 parts of modifier, 2-3 parts of fire retardant, 50-60 parts of natural rubber, 15-20 parts of hydrogenated butadiene-acrylonitrile rubber, 0.5-2.5 parts of stearic acid, 4-6 parts of diacetyl peroxide, 2-6 parts of calcium carbonate, 0.6-0.9 part of drying oil alkyd resin, 3-6 parts of white carbon black, 0.5-0.9 part of antiager, 1-2 parts of sulphur, 1-3 parts of polymethyl methacrylate, 2-5 parts of composite environment-friendly heat stabilizer, 5-15 parts of graphite, 0.4-2.5 parts of polyethylene wax, 1-3 parts of lubricant, 0.5-1.5 parts of carbon fibers, 2-10 parts of calcined clay, 3-8 parts of talcum powder, 0.8-2.4 parts of antioxidant and 3-5 parts of ethylene propylene diene monomer.

The invention provides a highly anti-fatigue automobile engine damper rubber which is composed of the following components in parts by mass: 60-70 parts of nitrile rubber, 20-30 parts of butadiene rubber, 3-5 parts of stearic acid, 1.2-1.8 parts of calcium carbonate, 4-6 parts of magnesium dimethacrylate, 3-5 parts of dry oil alkyd resin, 1-1.5 parts of glass fiber, 1-2 parts of paraffin, 1-2 parts of diacetyl peroxide, 0.8 - 1.2 parts of zinc oxide, 8-10 parts of alumina, 6-8 parts of white carbon black, 0.5-2 parts of an antioxidant and 1-3 parts of sulfur. The highly anti-fatigue automobile engine damper rubber provided by the invention has good anti-fatigue performance and is applicable to automobile engine dampers.

The invention discloses an anti-ageing anti-corrosion rubber material and a preparation method thereof. The anti-ageing anti-corrosion rubber material is prepared from the following raw materials in parts by weight: nitrile rubber 70-90 parts, zinc oxide 5-9 parts, stearic acid 6-13 parts, organic montmorillonite 7-15 parts, a vulcanizing agent 3-8 parts, an accelerator 1.5-5 parts, calcium carbonate 10-25 parts, paraffin 3-10 parts, antimonous oxide 5-11 parts, an anti-ultraviolet agent 2-6 parts, an ageing resistor 1-5 parts, a polyester plasticizer 1-5 parts, tin dioxide 1-3 parts, diacetyl peroxide 7-13 parts, magnesium oxide 3-7 parts and nano-calcium phosphate 3-9 parts. The rubber material has good anti-ageing property and anti-corrosion property, and the service life of the rubber material can be prolonged.

The invention relates to a material composition formula for an automotive brake shell. According to the material composition formula, the automotive brake shell is prepared from, by weight, 10-30 parts of carbon steel, 5-8 parts of sepiolite fiber, 2-5 parts of a modifying agent, 5-15 parts of fire retardant, 2-3 parts of polyethylene, 15-20 parts of hydrogenated acrylonitrile butadiene rubber, 3-5 parts of stearic acid, 1-2 parts of allyl alcohol, 1-2 parts of methyl hydrogen silicone oil, 12-24 parts of graphite, 4-6 parts of diacetyl peroxide, 3-5 parts of aluminum oxide, 1.2-1.6 parts of zinc oxide, 10-30 parts of organic silicon resin and 0.5-2 parts of an anti-aging agent. The automotive brake shell produced according to the matching has high heat dissipation performance, a large amount of heat produced by a brake can be dissipated, the phenomenon that the brake is scrapped due to high temperature is prevented, and the service life of the brake is prolonged.

The invention discloses an ageing-resistant sealing material for a chemical pump. The rubber sealing material is prepared from the following components: hydrogenated butadiene-acrylonitrile rubber, a wood flour/high density polyethylene composite material, a silane coupling agent, diacetyl peroxide, polybutylene, diatomite, white carbon black, polyethylene glycol and sulfur. According to the ageing-resistant sealing material for the chemical pump disclosed by the invention, the butadiene-acrylonitrile rubber serves as a main ingredient, the wood flour/high density polyethylene composite material prepared by the invention serves as an auxiliary material, and synergistic treatment is performed by virtue of the added silane coupling agent, so that the ageing resistance of the prepared sealing material is greatly improved, particularly oxidation resistance and notch tear resistance under multiple deformation conditions are greatly improved compared with those of the ordinary butadiene-acrylonitrile rubber sealing material.

The invention discloses a rubber sealing material and a preparation method thereof. The rubber sealing material is prepared from, by weight, 30-50 parts of hydrogenated butadiene-acrylonitrile rubber, 15-35 parts of butadiene styrene rubber, 10-30 parts of raw carboxy nitroso fluororubber, 10-20 parts of polypropylene, 8-18 parts of allyl alcohol, 1-3 parts of barium hydroxide, 8-17 parts of microcrystalline cellulose, 8-15 parts of diacetyl peroxide, 6-14 parts of dioctyl adipate, 0.8-4.5 parts of glass fiber, 3-10 parts of organic montmorillonite, 5-15 parts of nanometer sepiolite powder, 5-12 parts of aluminophosphite, 2-6 parts of calcium ferrite, 3-7 parts of zinc oxide, 5-12 parts of white carbon black, 1-3 parts of an anti-aging agent and 1-5 parts of a vulcanizing agent. The rubber sealing material is high in wear resistance and loading capacity, and the service life of the rubber sealing material is greatly prolonged.

An environmental-protection type oil-resistant sealant is prepared from the following raw materials in parts by weight: 8-15 parts of ethylene glycol, 6-14 parts of a talc powder, 8-15 parts of phenyl silicone oil, 12-24 parts of diethyl methoxy silyloxy, 15-30 parts of carbon black, 12-20 parts of a plasticizer, 15-24 parts of nano calcium carbonate, 0.8-1.7 parts of tackifying resin, 20-32 parts of a flame retardant filler, 1.5-4 parts of a moisture scavenger, 2-7 parts of a heat stabilizer, 0.8-1.8 parts of a glass fiber, 0.8-1.5 parts of magnesium dimethacrylate, 1.5-2.5 parts of paraffin, 0.5-3.2 parts of diacetyl peroxide, and 4-6 parts of epoxy resin. The environmental-protection type oil-resistant sealant has the beneficial effects of good acid and alkali resistance, good oil resistance, stable bonding, elasticity, simple preparation process, no toxicity, no corrosion, and no pollution to the environment.