| CPC C08L 23/06 (2013.01) [A43B 1/10 (2013.01); A43B 1/14 (2013.01); A43D 11/12 (2013.01); B29C 45/14 (2013.01); C08L 2201/08 (2013.01)] | 8 Claims |
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1. A method for preparing a nanocomposite material for toe cap production, comprising the following steps:
(1) preparing the following raw materials: 20-40 parts of graphene, 10-20 parts of carbon nanotubes, 50-100 parts of a fiber composition, 5-10 parts of a silane coupling agent, 2-5 parts of acetic acid, 40-80 parts of acrylate rubber, 1-5 parts of a dispersant, 100-150 parts of polyethylene resin, 10-20 parts of nano silicon carbide, 5-10 parts of calcium stearate, 5-10 parts of zinc stearate, 10-20 parts of talcum powder, 10-20 parts of modified boron nitride and 60-80 parts of a curing agent;
(2) preparing graphene into graphene oxide by a Hummers method;
(3) immersing the graphene oxide, the carbon nanotubes and the nano silicon carbide in the silane coupling agent, and reacting at 80-90° C. for 1-2 hours;
(4) putting the mixture obtained in the step (3) and the talcum powder into a stirrer to be stirred for 10-40 min, and adding the acetic acid into the talcum powder under stirring;
(5) continuously adding the dispersant, the calcium stearate, the zinc stearate, the modified boron nitride and the curing agent into the mixture obtained in the step (4) for full and uniform mixing;
(6) adding the acrylate rubber and the polyethylene resin into an internal mixer for internal mixing, and then putting the internally mixed rubber compound and 50% of the mixture prepared in step (4) into an open mill for mixing at 100-110° C. for 6-8 min;
(7) coating the remaining 50% of the mixture prepared in the step (4) on a surface of the fiber composition with a reticular structure and curing at a temperature of 20-40° C. for 2-4 h; and
(8) putting the mixed fiber material prepared in the step (7) into a mold, and injecting the mixed rubber compound mixed in the step (6) to form a toe cap-shaped nanocomposite material.
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