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Wear-resistant SEBS thermoplastic elastomer material and preparation method thereof

A thermoplastic elastomer and wear-resistant additive technology, which is applied in the field of wear-resistant SEBS thermoplastic elastomer material and its preparation, can solve the problems of reduced wear resistance and increased material wear, and achieves low cost, excellent friction resistance, The effect of high filler content

Inactive Publication Date: 2016-05-11
广州合成材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the addition of fillers, the hardness of the material increases, the amount of wear of the material also increases, and the wear resistance decreases

Method used

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  • Wear-resistant SEBS thermoplastic elastomer material and preparation method thereof
  • Wear-resistant SEBS thermoplastic elastomer material and preparation method thereof

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preparation example Construction

[0046] The preparation method of the wear-resistant SEBS thermoplastic elastomer material corresponding to above-mentioned formula or preferred formula, comprises the following steps:

[0047] 1) Mix SEBS resin and white oil evenly and let stand;

[0048] 2) Add polypropylene, fillers, lubricants, antioxidant additives and wear-resistant additives, and mix well;

[0049] 3) Put the mixed material into a twin-screw extruder, extrude and granulate to obtain a wear-resistant SEBS thermoplastic elastomer material.

[0050] Preferably, the mixing time of step 1) and step 2) is 30-50 minutes.

[0051] Preferably, the standing time in step 1) is 12-15 hours.

[0052] Preferably, during the granulation process described in step 3), the temperature of the first zone of the twin-screw extruder is 150-170°C, and the temperature of the head and other zones is 180-220°C.

Embodiment 1

[0056] 1) Add 100 parts by mass of linear SEBS resin (weight average molecular weight 1.5×10 5 Da), 140 parts by mass of paraffin-based white oil were added to a high-speed mixer, mixed for 30 minutes, and then left to stand for 12 hours;

[0057] 2) Add 120 parts by mass of polypropylene copolymer, 200 parts by mass of talc powder, 1 part by mass of calcium stearate, 1 part by mass of PE wax, 0.1 part by mass of N,N'-bis-[3-(3 , 5-di-tert-butyl-4-hydroxyphenyl)propionyl]hexamethylenediamine, 0.1 parts by mass of tris(2,4-di-tert-butylphenyl)phosphite and 25 parts by mass of polytetrafluoroethylene powder, mixed for 50 minutes;

[0058] 3) Put the mixed material into a twin-screw extruder, extrude and granulate to obtain a wear-resistant SEBS thermoplastic elastomer material.

[0059] Step 3) During the granulation process, the temperature in the first zone of the twin-screw extruder is 150-170°C, and the temperature in the head and other zones is 180-220°C.

[0060]The per...

Embodiment 2

[0062] 1) Add 100 parts by mass of star SEBS resin (weight average molecular weight 1.5×10 5 Da), 100 parts by mass of paraffin-based white oil was added to a high-speed mixer, mixed for 40 minutes, and then left to stand for 15 hours;

[0063] 2) Add 100 parts by mass of polypropylene copolymer, 300 parts by mass of talc, 2 parts by mass of calcium stearate, 1 part by mass of N,N'-ethylene bisstearamide, 0.2 parts by mass of tetrakis [β -(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester, 0.5 parts by mass of tris(2,4-di-tert-butylphenyl)phosphite and 35 parts by mass of polytetrafluoroethylene Vinyl fluoride powder, mixed for 40 minutes;

[0064] 3) Put the mixed material into a twin-screw extruder, extrude and granulate to obtain a wear-resistant SEBS thermoplastic elastomer material.

[0065] Step 3) During the granulation process, the temperature in the first zone of the twin-screw extruder is 150-170°C, and the temperature in the head and other zon...

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Abstract

The invention discloses a wear-resistant SEBS thermoplastic elastomer material and a preparation method thereof. The wear-resistant SEBS thermoplastic elastomer material is prepared from the following raw materials in parts by weight: 100 parts of SEBS resin, 100-150 parts of white oil, 100-400 parts of polypropylene, 200-400 parts of a packing, 1-3 parts of a lubricant, 0.2-1 part of an antioxidant auxiliary agent, and 25-50 parts of a wear-resistant auxiliary agent. The preparation method comprises the following steps: 1) mixing the SEBS resin and the white oil evenly, and allowing to stand; and 2) adding polypropylene, the packing, the lubricant, the antioxidant auxiliary agent and the wear-resistant auxiliary agent, and mixing evenly; 3) adding the mixed material into a double-screw extruder, extruding, and granulating to obtain the wear-resisting SEBS thermoplastic elastomer material. The wear-resistant SEBS thermoplastic elastomer material has the advantages of excellent mechanical properties, excellent friction resistance, high content of the packing, low cost and green and environmental protection. The preparation method has the advantages of simple process, low investment, low energy consumption, high efficiency and remarkable economic and social benefits.

Description

technical field [0001] The invention relates to a wear-resistant SEBS thermoplastic elastomer material and a preparation method thereof. Background technique [0002] Thermoplastic elastomer TPE (Thermoplastic Elastomer) not only has the high elasticity, aging resistance, oil resistance and other excellent properties of traditional cross-linked vulcanized rubber, but also has the characteristics of convenient processing and wide processing methods of ordinary plastics. TPE has excellent processing performance, does not need to be vulcanized, and can be recycled. It can be used for secondary injection molding, coated with PP, PE, PC, PS, ABS and other base materials, and can also be formed separately. TPE has both the processing properties of thermoplastics and the physical properties of vulcanized rubber, and has broad application prospects. However, the high price and low yield of TPE limit its application to a large extent, and it is in urgent need of improvement. [000...

Claims

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Application Information

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IPC IPC(8): C08L91/06C08L53/02C08L23/14C08L23/12C08L27/18C08K13/02C08K3/34C08K5/098C08K5/526C08K5/134
CPCC08L23/12C08L23/14C08L53/025C08L91/06C08L2205/035C08L2207/04C08L23/06C08L27/18C08K13/02C08K3/34C08K5/098C08K5/526C08K2003/265C08K5/20C08K5/1345C08K2003/3045
Inventor 毛云增麦伟宗李景
Owner 广州合成材料研究院有限公司
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