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A kind of graphene eva composite foaming material with high elasticity and high toughness and preparation method thereof
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A composite foaming and graphene technology, applied in the directions of shoe soles, clothing, footwear, etc., to achieve the effects of improved tear strength, high flexibility, and extensive social and economic benefits
Active Publication Date: 2021-03-19
墨烯材料科技有限公司
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[0003] The purpose of the present invention is to provide a kind of preparation method and preparation method thereof of graphene EVA composite foaming material with high elasticity and high tenacity, to solve the problem of how to improve the various physical properties of shoes in the prior art
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Embodiment 1
[0027] A kind of graphene EVA composite foaming material with high elasticity and high tenacity, present embodiment applies graphene EVA composite foaming material to the preparation of sports shoe sole material, by weight, comprises following raw material:
[0039] A preparation method with high elasticity and high tenacity graphene EVA composite foaming material, the mixing ratio of adding raw materials is as above, comprising the following steps:
[0040] (1) Pre-mixing of graphene: Preheat graphene, silica and talcpowder in a high-speed kneader for 15 minutes accordi...
Embodiment 2
[0046] A kind of graphene EVA composite foaming material with high elasticity and high tenacity, present embodiment applies graphene EVA composite foaming material to the preparation of sports shoe sole material, by weight, comprises following raw material:
[0058] A preparation method with high elasticity and high tenacity graphene EVA composite foaming material, the mixing ratio of adding raw materials is as above, comprising the following steps:
[0059] (1) Pre-mixing of graphene: Preheat graphene, silica and talc powder in a high-speed kneader for 20 minutes according to ...
Embodiment 3
[0065] A kind of graphene EVA composite foaming material with high elasticity and high tenacity, present embodiment applies graphene EVA composite foaming material to the preparation of sports shoe sole material, by weight, comprises following raw material:
[0077] A preparation method with high elasticity and high tenacity graphene EVA composite foaming material, the mixing ratio of adding raw materials is as above, comprising the following steps:
[0078] (1) Pre-mixing of graphene: put graphene, silicon dioxide and talcum powder in a high-speed kneader according to the ratio of ...
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Abstract
The invention relates to a graphene EVA (EthyleneVinyl Acetate) compound-foamed material with high elasticity and high toughness as well as a preparation method thereof. The preparation method comprises the following steps: (1) putting graphene, silicon dioxide and talcum powder into a high-speed kneading machine according to proportions of raw materials and pre-heating to obtain a premix material; then weighing a certain amount of blowing agents (AC) and bridging agents (DCP) into the kneading machine and mixing the premix material; (2) pouring EVA, POE (PolyolefinElastomer), a coupling agent, stearic acid (St), zincstearate (ZnSt), blowing promoter (ZnO) and the premix material obtained in the step (1) into an internal batch mixer according to the proportions of the raw materials and performing internal mixing to obtain a mixed material; (3) carrying out compounding on the mixed material which is obtained by performing internal mixing in the step 2 on an open mill, then firstly thickening, secondly thinning, and finally thickening to obtain materials; (4) conveying the materials which are uniformly mixed on the open mill in the step (3) into a granulating machine and granulating the materials; (5) taking the materials obtained in the step (4) and carrying out vulcanization. According to the foamed material prepared by the preparation method disclosed by the invention, the tensile strength, the elongation at break and the tear strength are obviously improved, and the material is higher in toughness.
Description
technical field [0001] The invention relates to a composite foaming material and a preparation method thereof, in particular to a graphene EVA composite foaming material with high elasticity and high toughness and a preparation method thereof. Background technique [0002] EVA foam material has the characteristics of light specific gravity and good cushioning performance. It is mostly used in shoe materials, toys, building materials and other fields. EVA foam material plays a pivotal role in sports shoe sole materials. With the improvement of living standards, people have higher and higher requirements for shoes. They not only need to wear more comfortable shoes, but also have stricter requirements on the functions of shoes, especially for various shoes with sports functions. How to further improve the performance of shoes? Various physical properties (such as elastic modulus, tensile strength, elongation, toughness and other mechanical properties) meet the increasingly stri...
Claims
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Application Information
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