Graphene regenerated rubber-plastic foamed insole and preparation method thereof

Abstract

The invention discloses a graphene regenerated rubber-plastic foamed insole and a preparation method thereof. The foamed insole is prepared by the following raw materials in parts by weight: 17-22 parts of an ethylene-vinyl acetate copolymer, 35-42 parts of an ethylene-vinyl acetate copolymer offcut grinding powder, 5-7 parts of ethylene propylene diene monomer rubber, 3-6 parts of oxidized polyethylene, 3.5-5.5 parts of graphene, 1-1.5 parts of carboxylated graphene, 30-37 parts of a thermoplastic polyester elastomer, 10-14 parts of a polyester-polyether block copolymer, 2-4 parts of fluorinated polyethylene, 1.2-2.3 parts of a foaming agent, 0.7-1.1 parts of a bridging agent, 2.5-4.5 parts of aluminum silicate fiber tubes, 2.5-4 parts of an antioxidant, and 3-4.5 parts of zinc stearate.The graphene regenerated rubber-plastic foamed insole has good mechanical properties such as high tensile strength and the like, the hardness is moderate, the air permeability is good, the service life as an insole material is long, the foamed insole is not easy to have excessive deformation, and the comfort degree is high. The recycling of EVA is realized, the utilization rate of EVA is improved,the raw material cost is reduced, and thus the foamed insole is more environment-friendly.

Description

technical field [0001] The invention relates to the field of EVA rubber and plastic products, in particular to a graphene regenerated rubber and plastic foam insole and a preparation method thereof. Background technique [0002] Graphene is a carbon atom with sp 2 The hybrid orbitals form a hexagonal two-dimensional carbon nanomaterial with a honeycomb lattice. Graphene has excellent optical, electrical, and mechanical properties, and has important application prospects in materials science, micro-nano processing, energy, biomedicine, and drug delivery, and is considered to be a revolutionary material in the future. The common powder production methods of graphene are mechanical exfoliation method, redox method, and SiC epitaxial growth method, and the film production method is chemical vapor deposition (CVD). [0003] As a polymer material, ethylene-vinyl acetate copolymer (EVA) has good plasticity, elasticity and processability, and the EVA material after foaming treatme...

AI Technical Summary

Problems solved by technology

[0006] 1. It is impossible to recycle ethylene-vinyl acetate copolymer scraps reasonably and with high value, because the repeated use of ethylene-vinyl acetate copolymer scraps to make insoles will reduce the mechanical properties such as tensile strength, tear strength, and rebound rate. Poor, hard or soft, and poor air permeability, short service life as insole material, easy to excessive deformation, poor comfort;

[0007] 2. The cost of recycling ethylene-vinyl acetate copolymer scraps is high

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