Crack-resistant plastic shoe and preparation method thereof
An anti-cracking and plastic technology, applied in footwear, adhesives, bonding shoe parts, etc., can solve the problems of insufficient durability and weak adhesive viscosity, and achieve the effect of improving bonding performance, strong viscosity, and easy access to raw materials
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[0014] In order to achieve the above object, the invention provides a kind of preparation method of anti-cracking plastic shoes, described preparation method comprises the following steps: (1) carry out neoprene rubber and styrene-butadiene-styrene block copolymer Grinding and dispersing, adding cyclopentane and stirring until the chloroprene rubber and styrene-butadiene-styrene block copolymer are fully dissolved, then adding benzoic acid peroxide, controlling the reaction temperature, after the reaction, composition A is obtained; ( 2) dissolving nitrosofluororubber raw rubber in dimethoxymethane at a mass concentration of 50-60% to prepare a solution to obtain composition B; (3) mixing composition A, composition B, butyl acrylate , cross-linking agent, magnesium oxide and zinc oxide are mixed to obtain a neoprene adhesive; (4) respectively coat a layer of silicone grease at the edge of the shoe upper and the corresponding joint of the upper edge of the shoe in the sole, and ...
Embodiment 1
[0033] A preparation method of anti-cracking plastic shoes, the preparation method comprising the following steps:
[0034] (1) Grind and disperse neoprene and styrene-butadiene-styrene block copolymer, add cyclopentane and stir until neoprene and styrene-butadiene-styrene block copolymer are fully dissolved , then add benzoic acid peroxide, control the reaction temperature to 80°C, and react for 50 minutes. After the reaction, composition A is obtained; wherein, the addition amount of each material is: in parts by weight, relative to 100 parts of chloroprene rubber, The consumption of styrene-butadiene-styrene block copolymer is 45 parts, and the consumption of benzoic acid peroxide is 8 parts, and the consumption of cyclopentane is 80 parts;
[0035] Among them, the chloroprene rubber is a chloroprene rubber with an elongation at break of 850%, a rebound rate of 60%, and a hardness of 55 Shore A; the relative molecular mass of the styrene-butadiene-styrene block copolymer is...
Embodiment 2
[0041] A preparation method of anti-cracking plastic shoes, the preparation method comprising the following steps:
[0042] (1) Grind and disperse neoprene and styrene-butadiene-styrene block copolymer, add cyclopentane and stir until neoprene and styrene-butadiene-styrene block copolymer are fully dissolved , then add benzoic acid peroxide, control the reaction temperature to 90°C, and react for 40 minutes. After the reaction, composition A is obtained; wherein, the amount of each material added is: in parts by weight, relative to 100 parts of chloroprene rubber , the consumption of styrene-butadiene-styrene block copolymer is 65 parts, the consumption of benzoic acid peroxide is 12 parts, and the consumption of cyclopentane is 150 parts;
[0043] Among them, the neoprene is a neoprene with an elongation at break of 1000%, a rebound rate of 80%, and a hardness of 70 Shore A; the relative molecular mass of the styrene-butadiene-styrene block copolymer is 250,000;
[0044] (2)...
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