Light-weight anti-aging shoe sole and preparation method thereof

An aging-resistant and thermoplastic technology, used in shoe soles, footwear, apparel, etc., can solve problems such as easy migration, poor mechanical strength, and easy environmental impact, and achieves improvement in poor yellowing resistance, dimensional stability, and dimensional stability. Improve the effect of uneven foaming

Active Publication Date: 2015-07-29
茂泰(福建)新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Thermoplastic TPR soles have the advantages of easy processing, low cost, and recyclability, and have always been loved by consumers. However, their poor heat resistance, poor mechanical strength, and poor aging resistance have always caused headaches for manufacturers.
Thermoplastic TPR m

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In this embodiment, a kind of lightweight anti-aging thermoplastic shoe sole is made up of following components:

[0045] Styrene-butadiene-styrene block copolymer SBS 792 20 parts

[0046] Polyolefin block copolymer 9107 50 parts

[0047] Ethylene-vinyl acetate copolymer 7470M 5 parts

[0048] 15 parts white mineral oil

[0049] Antioxidant B1004 0.2 parts

[0050] Foaming agent ADC 0.05 parts

[0051] Microcapsule foaming agent 0.15 parts

[0052] Zinc stearate 1.4 parts

[0053] Anti-wear agent FY-500 3 parts

[0054] Nano calcium carbonate 10 parts

[0055] Premix the above component materials in a high-speed mixer for 6 minutes, then pass the premixed material through a twin-screw extruder, melt and extrude at 134 degrees, cool and granulate, and finally injection mold at 172 degrees to obtain a lightweight Aged thermoplastic sole.

[0056] The lightweight aging-resistant thermoplastic shoe sole prepared above has a density of 0.72 g / cm 3 , hardness 56 de...

Embodiment 2

[0058] In this example, the preparation method of a lightweight anti-aging thermoplastic shoe sole is basically the same as the preparation method in Example 1, except that in the ratio of raw materials:

[0059] 60 parts of polyolefin block copolymer 9807, 4 parts of ethylene-vinyl acetate copolymer E210F, 0.1 part of microcapsule foaming agent, 1.2 parts of zinc stearate, 0 part of inorganic filler.

[0060] The lightweight aging-resistant thermoplastic shoe sole prepared above has a density of 0.70 g / cm 3 , hardness 50 degrees, DIN wear resistance 139 mm 3 , tear strength 27 N / mm, tensile strength 4.3 MPa, dimensional shrinkage rate 0.8%, folding resistance 60,000 times without cracks, no frosting phenomenon in xenon lamp aging test, no cracking phenomenon in ozone aging test, smooth dynamic anti-slip coefficient Dry 0.75 wet 0.40.

Embodiment 3

[0062] In this example, the preparation method of a lightweight anti-aging thermoplastic shoe sole is basically the same as the preparation method in Example 1, except that in the ratio of raw materials:

[0063] 40 parts of polyolefin block copolymer 9107, 8 parts of ethylene-vinyl acetate copolymer 7470M, 20 parts of white mineral oil, 0.3 parts of antioxidant GM, 5 parts of anti-wear agent, and 8 parts of nano calcium carbonate.

[0064] The lightweight aging-resistant thermoplastic shoe sole prepared above has a density of 0.73 g / cm 3 , hardness 55 degrees, DIN wear resistance 116 mm 3 , tear strength 20 N / mm, tensile strength 3.2 MPa, dimensional shrinkage rate 0.4%, folding resistance 60,000 times without cracks, no frosting phenomenon in xenon lamp aging test, no cracking phenomenon in ozone aging test, smooth dynamic anti-slip coefficient Dry 0.63 wet 0.35.

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Abstract

The invention relates to the technical field of polymer materials, and provides a thermoplastic shoe sole which is light in weight, excellent in weather resistance, stable in size, flexible and anti-aging, and capable of being recycled repeatedly, and a preparation method of the shoe sole. The light-weight anti-aging shoe sole is composed of the following components: styrene-butadiene-styrene copolymer (SBS), polyolefin block copolymer, ethylene-vinyl acetate copolymer, white mineral oil, an antioxidant, a foaming agent, zinc stearate, an anti-wear agent and an inorganic filler. The preparation method includes the following steps: premixing the component materials in a super mixer for 4-7 minutes, then extruding the premixed material in a melting manner by using a twin-screw extruder at the temperature of 132-135 DEG C, cooling and pelleting, finally, performing injection molding at the temperature of 170-172 DEG C, so as to obtain the light-weight anti-aging shoe sole.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a thermoplastic shoe sole, in particular to a light-weight aging-resistant thermoplastic shoe sole and a preparation method thereof. Background technique [0002] Thermoplastic TPR soles have the advantages of easy processing, low cost, and recyclability, and have always been loved by consumers. However, their poor heat resistance, poor mechanical strength, and poor aging resistance have always caused headaches for manufacturers. The thermoplastic TPR material contains a large amount of aromatic ring structure, which is easily affected by the environment, resulting in poor weather resistance, and adding a large amount of operating oil, which is prone to migration, resulting in poor dimensional stability and easy deformation of the soft TPR sole. Contents of the invention [0003] The object of the present invention is to provide a lightweight aging-resistant thermoplast...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L53/00C08L23/08C08K13/02C08L91/00C08K5/526C08K5/138C08K5/3475C08K5/101C08K3/26C08J9/10A43B13/04
Inventor 卢鑫丁思博罗显发廖毅彬郭彩莲周小兰林荷香林江金校红郑荣大
Owner 茂泰(福建)新材料科技有限公司
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