Graphene composite modified high-strength polyethylene fiber and preparation method thereof
A high-strength polyethylene and graphene composite technology, which is applied in the direction of wet spinning, single-component polyolefin artificial filament, etc., can solve problems such as poor temperature resistance and heat transfer, inability to conduct heat energy, and product breakdown. Achieve the effects of increasing temperature resistance and heat transfer rate, making the preparation method simple and improving performance
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[0020] A graphene composite modified high-strength polyethylene fiber, which is characterized by: composed of UHMWPE and graphene; among them, UHMWPE accounts for 98%-99.8% by weight percentage, and graphene accounts for 0.2%-2%; the molecular weight of UHMWPE Between 2.4 million and 2.6 million; graphene has a particle size of 0.5-1.5um and a particle size of 0.33-0.35nm.
[0021] The preparation method of the graphene composite modified high-strength polyethylene fiber includes the following steps:
[0022] (1) Preparation of graphene pre-dispersion: put a certain amount of graphene, coupling agent, and non-ionic surfactant into the white oil medium, and use a powerful emulsifier to emulsify;
[0023] (2) Preparation of UHMWPE suspension: Put the UHMWPE raw materials and solvent white oil into the mixing kettle and stir to make a uniform suspension;
[0024] (3) Add the prepared graphene pre-dispersion to the UHMWPE suspension to prepare spinning dope, and stir evenly;
[0025] (4) ...
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