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Thermoplastic elastomer and preparation method thereof

A thermoplastic elastomer and elastomer technology, applied in the field of material engineering, can solve problems such as sticky feel, dirty surface, easy to be contaminated with dust, etc., and achieve the effects of simple processing technology, increased fluidity, and perfect performance.

Inactive Publication Date: 2019-04-12
唯美康(广东)实业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since paraffin oil exists in the molecular network of SEBS and is bound in the material by weak physical force, the oil will gradually migrate from the molecular network of SEBS to the surface of the material or product during use, especially during outdoor use , so that the surface of the material or product feels sticky to the touch, and the surface is easily contaminated with dust, which makes it difficult to clean the existing outdoor sports venues made of thermoplastic elastomers. Often after cleaning, it will be caused by the precipitation of paraffin oil The surface gets dirty, which gives the user a poor experience
[0005] Therefore, a thermoplastic elastomer with low precipitation effect has been researched and developed to avoid the precipitation of paraffin oil as much as possible, which can effectively alleviate the difficulty of cleaning the existing TPE outdoor sports venues. It is very necessary and urgent that the surface becomes dirty due to the precipitation of oil, which brings poor user experience to the user.

Method used

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  • Thermoplastic elastomer and preparation method thereof

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preparation example Construction

[0049] According to one aspect of the present invention, a kind of preparation method of above-mentioned thermoplastic elastomer, described preparation method comprises the following steps:

[0050] First, the polyethylene wax and the SEBS resin are mixed until the SEBS resin is completely wetted by the polyethylene wax, and then other raw materials are added, mixed and masticated to obtain the thermoplastic elastomer.

[0051] The preparation method of the thermoplastic elastomer provided by the present invention, the method firstly mixes polyethylene wax and SEBS resin until the SEBS resin is completely wetted by polyethylene wax, then adds other raw materials and mixes them and masticates to obtain the thermoplastic elastomer . The above-mentioned preparation method has simple processing technology, does not need special processing equipment in the preparation and processing process, has strong processing economy, and is suitable for large-scale industrial production.

[0...

Embodiment 1

[0063] A thermoplastic elastomer, in parts by mass, said thermoplastic elastomer is mainly made of the following raw materials: 10 parts of SEBS resin, 2 parts of polyethylene wax, 10 parts of polypropylene-based elastomer, 40 parts of polypropylene resin, anti- 0.2 part of oxidation aid and 0.2 part of anti-aging aid;

[0064] The above-mentioned SEBS resin is YH-511 thermoplastic rubber produced by Yueyang Petrochemical; the above-mentioned polyethylene wax is AC-6 polyethylene wax produced by Honeywell Company of the United States; the above-mentioned polypropylene-based elastomer is 6202 type produced by ExxonMobil Polypropylene-based elastomer; the above-mentioned polypropylene resin is SP179 polypropylene produced by Qilu Petrochemical Company; the above-mentioned antioxidant additive is N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyl) Hexamethylenediamine; the above-mentioned anti-aging additive is UV531;

[0065] The preparation method of above-mentioned thermoplastic elast...

Embodiment 2

[0070] A thermoplastic elastomer, in parts by mass, said thermoplastic elastomer is mainly made of the following raw materials: 40 parts of SEBS resin, 8 parts of polyethylene wax, 20 parts of polypropylene-based elastomer, 60 parts of polypropylene resin, anti- 1 part of oxidation aid and 1 part of anti-aging aid;

[0071] The above-mentioned SEBS resin is YH-511 thermoplastic rubber produced by Yueyang Petrochemical; the above-mentioned polyethylene wax is AC-6 polyethylene wax produced by Honeywell Company of the United States; the above-mentioned polypropylene-based elastomer is 6202 type produced by ExxonMobil Polypropylene-based elastomer; the above-mentioned polypropylene resin is SP179 type polypropylene produced by Qilu Petrochemical Company; ester; the anti-aging additive is UV-326;

[0072] The preparation method of above-mentioned thermoplastic elastomer specifically comprises the following steps:

[0073] (a), first raise the temperature of the high-speed mixer ...

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Abstract

Relating to the technical field of material engineering, the invention provides a thermoplastic elastomer (TPE) and a preparation method thereof. The thermoplastic elastomer is mainly prepared from SEBS resin, polyethylene wax, a polypropylene based elastomer, polypropylene resin, an antioxidant additive and an anti-aging assistant. The thermoplastic elastomer uses polyethylene wax as the wettingagent to endow SEBS resin with good fluidity in the material, thus changing the existing TPE wetting system from the source, avoiding the addition of paraffin oil, and solving the technical problem ofparaffin oil precipitation. In addition, the invention also limits the mass content of all the raw materials, therefore the material composition is more reasonable and the performance is more perfect. Because of the use of polyethylene wax as the wetting system, the prepared thermoplastic elastomer can effectively alleviate the problems that existing TPE outdoor sports grounds are hardly cleanable, and the surfaces can become dirty after being cleaned due to paraffin oil precipitation, thus bringing users poor use feeling.

Description

technical field [0001] The invention relates to the technical field of material engineering, in particular to a thermoplastic elastomer and a preparation method thereof. Background technique [0002] Thermoplastic elastomer TPE, also known as artificial rubber or synthetic rubber, not only has the excellent properties of high elasticity, aging resistance and oil resistance of traditional cross-linked vulcanized rubber, but also has the characteristics of convenient processing and wide processing methods of ordinary plastics. Very broad application market. At present, the thermoplastic elastomer with the largest output in the world is styrene-based TPE, and its representative variety is SEBS, the full name is styrene-ethylene / butylene-styrene block copolymer, which is composed of block copolymer styrene-butanediene Elastomer produced by selective hydrogenation of ene-styrene SBS. The SEBS material is generally in powder form and has poor fluidity, so it cannot be used alone...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L53/02C08L23/06C08L23/14
CPCC08L23/12C08L2205/035C08L2207/04C08L53/025C08L23/06C08L23/14
Inventor 孙才
Owner 唯美康(广东)实业发展有限公司