Light soft foamed sole material and preparation method thereof

A light and soft technology for sole materials, applied in the field of sole materials, can solve the problems of difficult control of foaming agents, influence on shoe size, uneven foaming, etc., and achieve the effects of reducing weight, saving materials and saving costs.

Inactive Publication Date: 2013-06-19
叶建华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the foaming agent is not easy to control during foaming, the foaming is uneven, and it is easy to swell when it is released from the mold in the preparation process of the existing foamed sole material, which will affect the size of the shoe. A kind of light and soft foam sole material and preparation method thereof

Method used

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  • Light soft foamed sole material and preparation method thereof
  • Light soft foamed sole material and preparation method thereof
  • Light soft foamed sole material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1.1 Composition in parts by weight of light and soft foam sole material

[0033]

[0034]

[0035] 1.2 Preparation method

[0036] (1) Standard rubber, styrene-butadiene rubber, butadiene rubber, white carbon black, diethylene glycol, butter, reclaimed rubber powder, CCR, zinc oxide, stearic acid, anti-fogging agent, dispersant, accelerator, anti-aging agent , RX-80 and expansion agent are mixed and stirred evenly according to a certain weight part to obtain a mixture;

[0037] (2) Add the mixture to a banbury mixer, and banbury at 145° C. to 150° C. for 12 to 15 minutes to obtain a banbury mixture;

[0038] (3) Add the banburying mixture into the screw extruder, and carry out melt blending and granulation at 110°C to 150°C;

[0039] (4) Adding the granules to an open mill for mixing, then molding and foaming to obtain a light and soft foam sole material.

[0040] 1.3 Properties of light and soft foam sole materials

[0041] 1. Specific gravity

[0042] The s...

Embodiment 2

[0048] 2.1 Composition by weight of light and soft foam sole material

[0049]

[0050]

[0051] 2.2 Preparation method

[0052] The preparation method is the same as in Example 1.

[0053] 2.3 Properties of light and soft foam sole materials

[0054] 1. Specific gravity

[0055] The specific gravity of the light and soft foam sole material prepared by testing embodiment 2 is 0.72g / cm 3 , which is higher than the specific gravity of ordinary solid rubber (1.125g / cm 3 ) has been reduced a lot, and the weight is 36% lighter than the common solid rubber, so the light and soft foaming sole material prepared by the present invention can effectively reduce the sole weight.

[0056] 2. Folding resistance

[0057] According to the national standard G B / T3903.1-2008 "General Test Method for Folding Resistance of Footwear", the flexion angle is 50°±1°, the flexion frequency is (230±10) times / min, and the pre-cut opening is 5mm. Under the condition of (23±2)℃, continuous flex...

Embodiment 3

[0061] 3.1 Composition by weight of light and soft foam sole material

[0062]

[0063]

[0064] 3.2 Preparation method

[0065] The preparation method is the same as in Example 1.

[0066] 3.3 Properties of light and soft foam sole materials

[0067] 1. Specific gravity

[0068] The specific gravity of the light and soft foam sole material prepared by testing embodiment 3 is 0.68g / cm 3 , which is higher than the specific gravity of ordinary solid rubber (1.125g / cm 3 ) has been reduced a lot, and the weight is 39.6% lighter than common solid rubber, so it is illustrated that the light and soft foaming sole material prepared by the present invention can effectively reduce sole weight.

[0069] 2. Folding resistance

[0070] According to the national standard G B / T3903.1-2008 "General Test Method for Folding Resistance of Footwear", the flexion angle is 50°±1°, the flexion frequency is (230±10) times / min, and the pre-cut opening is 5mm. Under the condition of (23±2)℃...

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Abstract

The invention discloses a light soft foamed sole material which is prepared from standard rubber, styrene-butadiene rubber, cis-1,4-polybutadiene rubber, white carbon black, diethylene glycol, butter, ground rubber, CCR, zinc oxide, stearic acid, antifogging agent, dispersing agent, accelerator, anti-aging agent, RX-80 and expanding agent. The preparation method of the light soft foamed sole material comprises the following steps: evenly mixing the materials, adding into a Banbury mixer, banburying, adding the banburying mixture into a screw extruder, carrying out melt blending, granulating, mixing the granules in an open mill, carrying out mold pressing, and foaming to obtain the light soft foamed sole material. By substituting the traditional foaming agent with the expanding agent, the product disclosed by the invention can integrally expand in the die, can keep the volume constant in the rubber material curing process, can not have the phenomenon of mold stripping or expansion, and can not influence the size. The sole prepared according to the formula and technique has the advantages of light weight and excellent bending resistance, and is light and comfortable to wear.

Description

technical field [0001] The invention relates to a shoe sole material, in particular to a light and soft foamed shoe sole material and a preparation method thereof. Background technique [0002] With the development of science and technology and the progress of society, people's living standards continue to improve. Improving the quality and performance of all kinds of shoes and making the wearers safer and more comfortable is the ultimate goal and direction of the entire shoe industry. It has been reported in the literature that for every 100g increase in shoe weight, the wearer's physical energy consumption will increase by 1%. In order to reduce physical energy consumption and improve wearing comfort, light and soft foam materials have become the main direction of research and development of shoe sole materials. [0003] The rubber foam bottom is a bottom fabric made of rubber closed-cell or open-cell foam materials made of natural or artificial rubber. Half a century ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L17/00C08L9/06C08L9/00C08L7/00C08K13/02C08K3/36C08K5/06C08K3/22C08J9/00A43B13/04
Inventor 叶建华
Owner 叶建华
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