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High-temperature-resistant low-compression-deformation flame-retardant thermoplastic elastomer and preparation method thereof

A thermoplastic elastomer, low-compression technology, applied in the production of bulk chemicals, etc., can solve the problems of low temperature resistance, hydrolysis resistance, and poor resistance to chemical media

Active Publication Date: 2021-11-02
会通新材料(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to its structural characteristics, conventional thermoplastic elastomers have low temperature resistance (≤150°C, such as styrene, polyurethane, polyolefin), and poor chemical resistance (not resistant to hydrolysis, not resistant to acid and alkali, Such as polyester, polyamide), not suitable for harsh environments such as chemical industry, oil field, nuclear power plant, aerospace, etc.

Method used

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  • High-temperature-resistant low-compression-deformation flame-retardant thermoplastic elastomer and preparation method thereof
  • High-temperature-resistant low-compression-deformation flame-retardant thermoplastic elastomer and preparation method thereof
  • High-temperature-resistant low-compression-deformation flame-retardant thermoplastic elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A flame-retardant thermoplastic elastomer with high temperature resistance and low compression deformation, comprising the following raw materials in parts by mass: 30 parts of PFA resin, 55 parts of flame-retardant fluororubber premix, 1.5 parts of bisphenol AF, and 1 part of trimethallyl isocyanate , 10 parts of fluorosilicone oil, 0.5 parts of hindered phenol antioxidant, 0.5 part of thioester antioxidant;

[0032] The preparation method of the flame-retardant fluororubber premix is ​​as follows: in parts by mass, 40 parts of vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene ternary rubber and 15 parts of fluorine-containing silane coupling agent modified inorganic flame retardant are first Put it into an internal mixer, knead at 75°C for 400s, then put it in a high-pressure container, and feed it with supercritical CO 2 Treat for 4.5 hours under the conditions of 12MPa and 130°C, and release the pressure quickly.

[0033] The preparation method of the flu...

Embodiment 2

[0037] A flame-retardant thermoplastic elastomer with high temperature resistance and low compression deformation, comprising the following raw materials in parts by mass: 20 parts of FEP resin, 67 parts of flame-retardant fluororubber premix, 2 parts of ethylenediamine carbamate, cyanuric acid 5 parts of triallyl ester, 10 parts of Brazilian wax, 0.5 part of hindered phenol antioxidant, 0.5 part of thioester antioxidant;

[0038] The preparation method of the flame-retardant fluororubber premix is ​​as follows: in parts by mass, 40 parts of vinylidene fluoride-hexafluoropropylene binary rubber and 27 parts of fluorine-containing silane coupling agent modified inorganic flame retardant are first added to the internal mixer , kneaded at 78°C for 500s, then placed in a high-pressure vessel, and fed supercritical CO 2 Treat for 6 hours under the conditions of 15MPa and 150°C, and quickly release the pressure to get it;

[0039] The preparation method of the fluorine-containing sil...

Embodiment 3

[0043] A flame-retardant thermoplastic elastomer with high temperature resistance and low compression deformation, including the following raw materials in parts by mass: 30 parts of ECTFE resin, 55 parts of flame-retardant fluororubber premix, 2,5-dimethyl-2,5-bis-hexyl 2 parts of alkane, 4.5 parts of triallyl isocyanurate, 5 parts of Brazilian wax, 0.5 parts of hindered phenol antioxidant, 1.5 parts of thioester antioxidant;

[0044] The preparation method of the flame-retardant fluororubber premix is ​​as follows: in parts by mass, add 40 parts of tetrafluoroethylene-propylene binary fluororubber and 15 parts of fluorine-containing silane coupling agent modified inorganic flame retardant into the internal mixer , kneaded at 80°C for 450s, then placed in a high-pressure container, and fed supercritical CO 2 Treat for 4 hours under the conditions of 10MPa and 120°C, and quickly release the pressure to get it;

[0045] The preparation method of the fluorine-containing silane ...

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Abstract

The invention discloses a high-temperature-resistant low-compression-deformation flame-retardant thermoplastic elastomer which comprises the following raw materials in parts by mass: 20-60 parts of fluororesin, 45-100 parts of a flame-retardant fluororubber premix, 1-10 parts of a vulcanizing agent, 1-10 parts of a cross-linking agent, 3-10 parts of a lubricant, 1-3 parts of an antioxidant and 0-2 parts of an ultraviolet light initiator. The invention also discloses a preparation method of the high-temperature-resistant low-compression-deformation flame-retardant thermoplastic elastomer. The thermoplastic elastomer prepared by the invention not only has excellent chemical medium resistance and radiation resistance, but also has excellent properties of high temperature resistance, flame retardance and low compression deformation, and is suitable for being applied to harsh environments and high-temperature fields.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant thermoplastic elastomer with high temperature resistance and low compression deformation and a preparation method thereof. Background technique [0002] Thermoplastic elastomer, which combines the high elasticity of traditional vulcanized rubber with the characteristics of convenient and easy recycling of ordinary plastics, can be produced by injection molding, extrusion, blow molding and other processing methods, which not only simplifies the processing process, but also reduces processing costs. It is a green Eco-friendly material. Conventional thermoplastic elastomers include styrenes (SBS, SIS, SEBS, SEPS), polyolefins (TPO, TPV), polyurethanes (TPU), polyesters (TPEE), polyamides (TPAE), and have been obtained Wide range of applications. [0003] However, due to its structural characteristics, conventional thermoplastic elastomers have low tempe...

Claims

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Application Information

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IPC IPC(8): C08L27/16C08L27/18C08L23/14C08L23/08C08K9/06C08K9/02C08K3/22
CPCC08L27/16C08L27/18C08L23/147C08L2201/02C08L2201/08C08K2003/2224C08K2003/2227C08L2207/04C08K9/06C08K9/02C08K3/22C08K3/2279C08L23/0892Y02P20/54
Inventor 严波孙刚伟李荣群
Owner 会通新材料(上海)有限公司
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