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High-wearability sole material and preparation method thereof

A sole material, high wear-resistant technology, applied in the direction of shoe soles, footwear, applications, etc., can solve the problems of non-wear resistance, fast wear of the sole, and strong grip of the sole on the ground, and achieve excellent aging resistance and fluidity. Effect of small compression set and low glass transition temperature

Inactive Publication Date: 2015-09-16
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PVC soles are cheap, but they are not wear-resistant and cold-resistant, especially in winter, they are easy to break; EVA has disadvantages such as not being puncture-resistant, hardening at low temperatures, and poor slip resistance, and its wet-slip resistance becomes worse after contact with water ; PU has good mechanical properties, but its low temperature performance is poor, easy to hydrolyze and biodegrade, difficult to process, and complicated in process; SBS also has some shortcomings, such as poor wear resistance and heat resistance, and the sole has a large grip on the ground. High heat generation under extreme wearing conditions, and the sole wears out quickly

Method used

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  • High-wearability sole material and preparation method thereof
  • High-wearability sole material and preparation method thereof
  • High-wearability sole material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] With the degree of branching as 106 branched chains / 1000 carbons (wherein the methyl content is 50.6 mol%, the ethyl content is 13.2 mol%, the propyl content is 6.7 mol%, the butyl content is 4.9 mol%, the amyl content 3.7mol%, carbon number ≥ 6 branched chain content is 20.8mol%), glass transition temperature is -65°C, weight average molecular weight is 250,000, and Mooney viscosity ML(1+4) is 16.75 at 125°C Polyethylene is the main raw material, and the components of the processing formula and the parts by weight of each component are shown in Table 1.

[0033] The processing formula of table one embodiment 1

[0034] components

parts by weight

branched polyethylene

100

Zinc oxide

1

stearic acid

0.1

Carbon black N330

30

[0035] DBPH

2

DM

0.3

[0036] The processing steps are as follows:

[0037] Step (1): Set the initial temperature of the internal mixer to 40°C, and th...

Embodiment 2

[0042] Change the vulcanization temperature of step (4) in Example 1 to 175° C., change the vulcanization time to 12 minutes, and keep other conditions unchanged.

Embodiment 3

[0044] Change the DM of step (2) in Example 2 to TAIC, and the processing formula is as shown in Table 2, and other conditions remain unchanged.

[0045] The processing formula of table two embodiment 3

[0046] components

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PUM

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Abstract

The invention relates to the field of the preparation of a sole material, and provides a high-wearability sole material and a preparation method thereof. The high-wearability sole material comprises the following raw materials: branched polyethylene, carbon black, a peroxide crosslinking agent, zinc oxide, a lubricating agent and an accelerant. The preparation method comprises the following steps: setting an initial temperature and an initial rotor speed of an internal mixer, sequentially charging the branched polyethylene, zinc oxide, the lubricating agent, carbon black, the peroxide crosslinking agent and the accelerant into the internal mixer according to a formula, mixing to obtain a rubber compound, folding and thin-passing the rubber compound on an open mill, encapsulating the rubber compound, finally vulcanizing by utilizing a panel vulcanizing machine, and standing for a period of time at the room temperature to obtain the high-wearability sole material. The wearability of the high-wearability sole material is better than that of natural rubber and equivalent to that of a natural rubber / butadiene styrene rubber composite, the rebound resilience is good, less heat is produced by compression, the probability of the compression permanent deformation is low, and the shape retention property is good.

Description

technical field [0001] The invention relates to the field of shoe sole material preparation, in particular to a high wear-resistant shoe sole material and a preparation method thereof. Background technique [0002] my country has more than 30,000 shoe-making enterprises, with an annual output of more than 10 billion pairs of shoes, making it the largest shoe-making country in the world. At present, the main materials of sole materials on the market are polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer (EVA), polyurethane (PU) and styrene-butadiene-styrene block copolymer (SBS). . PVC soles are cheap, but they are not wear-resistant and cold-resistant, especially in winter, they are easy to break; EVA has disadvantages such as not being puncture-resistant, hardening at low temperatures, and poor slip resistance, and its wet-slip resistance becomes worse after contact with water ; PU has good mechanical properties, but its low temperature performance is poor, easy t...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/02C08K3/04C08K5/14C08K3/22C08K5/47C08K5/3492A43B13/04B29B7/28B29B7/72B29C35/02
CPCC08K13/02A43B13/04B29B7/286B29B7/726B29C35/02C08K3/04C08K3/22C08K5/09C08K5/14C08K5/20C08K5/34924C08K5/47C08K2003/2296C08L23/06
Inventor 傅智盛范志强
Owner ZHEJIANG UNIV
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