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A rubber material and light-weight technology, applied in the field of rubber, can solve the problems of poor cold resistance and unstable storage of raw rubber, and improve the resistance to tensile deformation, improve the resistance to flex cracking, and facilitate transportation and processing Effect
Inactive Publication Date: 2015-09-16
FUYANG ANGU BOILER PRESSURE VESSEL MFG
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Problems solved by technology
The disadvantages of chloroprene rubber are electrical insulation performance, poor cold resistance, and raw rubber is unstable during storage.
Method used
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Embodiment 1
[0017] A light rubber material is characterized in that it is made up of the following raw materials in parts by weight:
[0019] A kind of preparation method of lightweight rubber material, comprises the following steps:
[0020] (1) Add microcrystalline cellulose to 3 times of water, add isopropanol and maleic anhydride, stir evenly, add 10% sulfuric acid, react in a water bath at 60°C for 7 hours, adjust the pH to neutral, evaporate under reduced pressure Water and isopropanol are removed to obtain acid anhydride cellulose;
[0021] (2) Mix white beeswax and ditetradecyl alcohol ester, heat and ...
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Abstract
The invention discloses a lightweight rubber material which is composed of the raw materials of, by weight, 3-4 parts of maleic anhydride, 0.2-0.6 parts of 8-10% sulfuric acid, 1-2 parts of an accelerator MZ, 26-30 parts of melamine, 5-8 parts of a 37% formaldehyde solution, 7-10 parts of urea, 6-10 parts of microcrystalline cellulose, 210-230 parts of chloroprene rubber S40V, 3-6 parts of white beeswax, 4-5 parts of magnesium enhancement powder, 0.7-1 parts of stannous octoate, 2-3 parts of polyurethane, 16-20 parts of Suzhou soil, 28-34 parts of light calcium carbonate, 4-7 parts of bitetradecenoic alcohol ester, 2-3 parts of wood creosote, 3-4 parts of an anti-aging agent DOD, 2-3 parts of sulfur, and 1-1.2 parts of isopropanol. According to the invention, with the crosslinking effect of maleic anhydride, microcrystalline cellulose forms a closer network structure in melamine resin formed by melamine, urea and formaldehyde, such that resin viscosity and tensile deformation resistance are well improved, and certain reinforcement and tackifying functions are performed in the rubber material. Therefore, flexure cracking resistance, hot-air aging resistance and stability are improved. The rubber finished product provided by the invention has the advantages of light weight, no toxic or harmful substance volatilization, easy transportation, and easy processing.
Description
technical field [0001] The invention mainly relates to the field of rubber, in particular to a lightweight rubber material. Background technique [0002] Chloroprene rubber is made of chloroprene as the main raw material through homopolymerization or copolymerization of a small amount of other monomers. Such as high tensile strength, excellent heat resistance, light resistance, aging resistance, and oil resistance are superior to natural rubber, styrene-butadiene rubber, and butadiene rubber. It has strong flame resistance and excellent flame retardancy resistance, high chemical stability and good water resistance. The disadvantage of chloroprene rubber is that it has poor electrical insulation performance and cold resistance, and the raw rubber is unstable during storage. Neoprene is widely used, such as used to make conveyor belts and transmission belts, sheathing materials for wires and cables, to make oil-resistant hoses, gaskets, and chemical-resistant equipment l...
Claims
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Application Information
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