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A technology of parts by weight and raw materials, which is applied in the field of EVA shoe soles and its preparation, can solve the problems of poor resilience of EVA soles, loss of shock-absorbing performance, poor resilience, etc., to reduce crystallization rate, improve entanglement, and improve use The effect of longevity
Active Publication Date: 2020-05-15
DONGGUAN CHENGGUAN SPORT PROD TECH CO LTD
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[0004]
The main advantage of the EVA sole is that it is light in weight, and it has a certain shock absorption performance even without air cushions, but the disadvantages are mainly poor wear resistance and poor resilience, and it is easy to be stepped on and lose its good shock absorption performance. The above-mentioned technical solution does not improve the problem of poor resilience of EVA soles and needs to be improved
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Embodiment 1
[0048] A kind of EVA sole, by weight parts, its raw material composition is as shown in table 1.
[0049] Such as figure 1 Shown, the preparation method of this sole comprises the following steps:
[0050] S1, take naphthenic oil 4010 and heat up to 120-125°C, add C9 resin, stir until C9 resin is transparent and viscous, obtain anti-slip agent and cool it for later use;
[0051] S2, preheat the double-roll mill to 90-100°C, and add EVA 400W pellets;
[0052] S3, when the EVA is melted and covered with rolls, add zinc oxide, zinc stearate and stearic acid, and knead for 5-6 minutes;
[0053] S4, add anti-slip agent, AC foaming agent and DCP crosslinking agent, and knead for 6-8 minutes;
[0054] S5, add OBC 9530 (Dow in the United States), POE 8137 (Dow in the United States) and PFPE (the degree of polymerization is within 100), knead for 7-8 minutes, and release the tablet;
[0055] S6, cutting the sheet, putting it into a preheated mold, and placing it on a flat vulcanize...
Embodiment 2
[0058] The difference from Example 1 is that, in parts by weight, the raw material components are as shown in Table 1.
Embodiment 3
[0060] The difference from Example 1 is that, in parts by weight, the raw material components are as shown in Table 1.
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Abstract
The invention discloses an EVA shoe sole and a preparation method thereof. The EVA shoe sole is prepared from, by weight, 60-70 parts of EVA, 8-10 parts of OBC, 12-15 parts of POE, 1-2 parts of an ACfoaming agent, 1-2 parts of a cross-linking agent and 2-3 parts of an activator. The OBC has good heat resistance, high elasticity and good processability, and can provide excellent resilience for anEVA foaming system, so that the EVA sole has high elasticity and is not prone to being compacted. By adding the POE, the resilience of the EVA sole can be further improved, the surface crystallizationrate of the material can be reduced, the problem that the surface of a traditional EVA foamed shoe material is prone to wrinkling is solved, and the attractiveness of the product is improved. Besides, OBC molecules and POE molecules inevitably form entanglement in a three-dimensional space, and the entanglement can limit movement of macromolecular chain segments like chemical crosslinking, so that the EVA sole is further not prone to being compacted, the surface of the EVA sole is not prone to wrinkling, and the use performance and the attractive performance are guaranteed.
Description
technical field [0001] The invention relates to the technical field of shoes, more specifically, it relates to an EVA sole and a preparation method thereof. Background technique [0002] Ethylene-vinyl acetate copolymer (EVA) foam soles are widely used in the production of various shoe soles because of their light weight, good flexibility, comfortable wearing, non-wrinkle resistance, and good elasticity. [0003] The Chinese patent with the publication number CN103242584B discloses a wear-resistant EVA shoe sole material. In terms of mass percentage, the shoe sole material is composed of the following components: EVA 65-85%, wear-resistant agent 5-10%, light stabilizer 0.5- 5%, particle size ≤ 200nm inorganic filler 5-15%, foaming agent 1-3%, crosslinking agent 0.5-2%, dispersing lubricant 1-3%, among which, the anti-wear agent is made of ethylene-vinyl acetate Composed of copolymer and ultra-high molecular weight silicone polymer, the mass percentage of each component is: ...
Claims
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