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Preparation method for heat-resistant thermoplastic elastomer (TPE) material

A thermoplastic elastomer and heat-resistant technology, applied in the field of thermoplastic elastomer material preparation, can solve the problems of shortened service life, large decline in physical properties, and reduced compression deformation, etc., to improve heat resistance, prolong service life, and improve flow. sexual effect

Inactive Publication Date: 2014-02-05
SUZHOU BOYUAN TEXTILE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the heat resistance of thermoplastic elastomer materials is not as good as that of rubber, and the physical properties decrease greatly as the temperature rises, so the scope of application is limited
For example, anti-slip mats made of thermoplastic elastomers have the characteristics of good elasticity, good anti-slip effect, good toughness, strong tension, recyclability and reuse, but for outdoor use, floor mats made of thermoplastic elastomer materials experience summer sunlight. If the temperature is kept in a high state for a long time, its compression deformation, elastic recovery and other physical properties will be significantly reduced, which will reduce the sense of use of the floor mat and shorten the service life.

Method used

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  • Preparation method for heat-resistant thermoplastic elastomer (TPE) material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 Preparation of heat-resistant thermoplastic elastomer material of the present invention (1)

[0022] 1. Take the following raw materials by weight: 100 parts of hydrogenated styrene-butadiene-styrene block copolymer, 90 parts of hydrogenated naphthenic oil, 20 parts of polypropylene, 15 parts of propylene-ethylene block copolymer, CaCO 3 110 parts, 1 part of zinc stearate, 0.8 parts of 2-tert-butyl-4,6-dimethylphenol;

[0023] 2. Put the above raw materials into the mixer and mix at 100-120rpm for 2-3h;

[0024] 3. Put the mixed raw materials into a twin-screw extruder for extrusion and granulation, wherein the temperature of the twin-screw extruder is 180-200°C, and the rotation speed is 260rpm.

Embodiment 2

[0025] Example 2 Preparation of heat-resistant thermoplastic elastomer material of the present invention (2)

[0026] 1. Take the following raw materials by weight: 80 parts of hydrogenated styrene-butadiene-styrene block copolymer, 80 parts of hydrogenated naphthenic oil, 15 parts of polypropylene, 20 parts of propylene-ethylene block copolymer, CaCO 3 100 parts, 0.5 parts of zinc stearate, 0.5 parts of 2-tert-butyl-4,6-dimethylphenol;

[0027] 2. Put the above raw materials into the mixer and mix at 100-120rpm for 2-3h;

[0028] 3. Put the mixed raw materials into a twin-screw extruder for extrusion and granulation, wherein the temperature of the twin-screw extruder is 180-200°C, and the rotation speed is 280rpm.

Embodiment 3

[0029] Example 3 Preparation of heat-resistant thermoplastic elastomer material of the present invention (3)

[0030] 1. Weigh the following raw materials in parts by weight: 100 parts of hydrogenated styrene-butadiene-styrene block copolymer, 100 parts of hydrogenated naphthenic oil, 20 parts of polypropylene, 15 parts of propylene-ethylene block copolymer, CaCO 3 120 parts, 1 part of zinc stearate, 1 part of 2-tert-butyl-4,6-dimethylphenol;

[0031] 2. Put the above raw materials into the mixer and mix at 100-120rpm for 2-3h;

[0032] 3. Put the mixed raw materials into a twin-screw extruder for extrusion and granulation, wherein the temperature of the twin-screw extruder is 180-200°C, and the rotation speed is 270rpm.

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Abstract

The invention relates to a preparation method for a heat-resistant thermoplastic elastomer (TPE) material. The preparation method comprises the following steps: a) weighing active ingredients in parts by weight: 80-100 parts of hydrogenated styrene-butadiene-styrene block polymer, 80-100 parts of hydrogenated naphthenic oil, 15-20 parts of polypropylene, 15-20 parts of propylene-ethylene block copolymer, 100-120 parts of CaCO3, 0.5-1 part of zinc stearate, and 0.5-1 part of 2-(tert-butyl)-4,6-dimethylphenol; b) mixing the active ingredients in an agitator; c) feeding the mixed active ingredients into a double-screw extruder for extruding and pelletizing, wherein the temperature of the double-screw extruder is at 180-200 DEG C, and the rotating speed of the double-screw extruder is at 260-280rpm. The prepared TPE material has good heat resistance property, the compression deformation, elasticity reset and other properties of the TPE material cannot be remarkably reduced due to overhigh temperature, and the surface hardness and tensile strength properties of the TPE material are excellent.

Description

technical field [0001] The invention relates to the technical field of thermoplastic elastomer materials, in particular to a preparation method of heat-resistant thermoplastic elastomer materials. Background technique [0002] Thermoplastic Elastomer TPE (Thermo plastic Elastomer) is a material that has the high elasticity, high strength and high resilience of rubber, and has the characteristics of injection molding. It has the advantages of environmental protection, non-toxic safety, wide hardness range, excellent colorability, soft touch, etc., good weather resistance, fatigue resistance and temperature resistance, excellent processing performance, no need for vulcanization, can be recycled to reduce costs, and can be used twice Injection molding, covering and bonding with PP, PE, PC, PS, ABS and other base materials, can also be formed separately. As a new type of energy-saving and environmentally friendly rubber raw material, the development prospect of thermoplastic el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L23/12C08L53/00C08K13/02C08K3/26C08K5/01C08K5/098C08K5/13
Inventor 武雪元
Owner SUZHOU BOYUAN TEXTILE IND