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Thermoplastic elastomer material and preparation method thereof

A thermoplastic elastomer and modification technology, applied in mechanical equipment, polyamide coatings, tire parts, etc., can solve the problems of large medium and long carbon chain nylon and high production cost, achieve high barrier properties, good fatigue resistance, The effect of reducing production costs

Inactive Publication Date: 2015-12-30
上海添衡商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a thermoplastic elastomer material to solve the technical problem of high production cost due to the relatively large amount of medium-long carbon chain nylon required for the preparation of existing thermoplastic elastomers
[0006] Another object of the present invention is to provide the above-mentioned preparation method of the thermoplastic elastomer material, to solve the technical problem that the amount of medium-long carbon chain nylon required in the preparation of the existing thermoplastic elastomer is relatively large, resulting in high production cost

Method used

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  • Thermoplastic elastomer material and preparation method thereof
  • Thermoplastic elastomer material and preparation method thereof
  • Thermoplastic elastomer material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0038] Mix and stir 85kg nylon 66 salt, 15kg caprolactam, 1kg tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol, 0.6kg potassium iodide, 0.1kg phosphorous acid, and 2kg adipic acid Evenly put it into the autoclave, seal the autoclave completely, and fill the autoclave with carbon dioxide gas after vacuuming. In order to ensure that the oxygen in the autoclave is completely discharged, at least three cycles of the process are performed, and the last time the autoclave is filled with carbon dioxide gas. The pressure is 0.05MPa, turn on the induction heating, when the temperature rises to 240°C, the system pressure reaches 1.3MPa, slowly deflate, keep the pressure at about 1.3MPa, maintain this pressure for 3 hours, then slowly deflate to normal pressure, Keep the central temperature at about 250°C under normal pressure for about 0.5 hours. Preheat the outlet valve, stop heating, fill with carbon dioxide gas, open the outlet valve and discharge the mat...

Embodiment 2

[0051] 60kg nylon 66 salt, 40kg caprolactam, 0.5kg (β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, 0.6kg (phosphite tris (2,4-di tert-butylphenyl) ester), 0.5kg cuprous iodide, and 0.8kg adipic acid are mixed and stirred evenly and then added to the autoclave, the autoclave is completely sealed, and after vacuuming, carbon dioxide gas is filled, in order to ensure that the autoclave The oxygen in the tank is completely exhausted, at least 3 cycles of the process, after the last filling of carbon dioxide gas, the pressure in the kettle is 0.05MPa, and the induction heating is turned on. When the temperature rises to 240°C and the system pressure reaches about 1.3MPa, slowly discharge Air, keep the pressure at about 1.3MPa, maintain this pressure for 0.5 hours, then slowly deflate to normal pressure, keep the center temperature at about 250°C at normal pressure for about 1 hour, preheat the outlet valve, stop heating, Inflate with carbon dioxide gas, open the discha...

Embodiment 3

[0065] 90kg nylon 66 salt, 10kg caprolactam, 2.5kg β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, 2.5kg tris(2,4-di-tert-butyl phosphite) Phenyl) ester, 0.1kg cuprous iodide, 2kg sebacic acid are mixed and stirred evenly and then added in the autoclave, the autoclave is completely sealed, and after vacuuming, carbon dioxide gas is filled, in order to ensure that the oxygen in the autoclave is completely discharged, Carry out at least 3 cycles of the process. After filling the carbon dioxide gas for the last time, the pressure in the kettle is 0.05MPa. Turn on the induction heating. When the temperature rises to 230°C and the system pressure reaches about 1.3MPa, slowly release the gas and keep the pressure at About 1.3MPa, maintain this pressure for 2 hours, then slowly deflate to normal pressure, keep the center temperature at about 250°C at normal pressure for about 1 hour, preheat the outlet valve, stop heating, fill with carbon dioxide gas, and open The materi...

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Abstract

The invention relates to the technical field of polymer materials, in particular to a thermoplastic elastomer material and a preparation method thereof. The thermoplastic elastomer material is mainly prepared from modified halogenated butyl rubber, copolymer nylon 66 / 6, ternary low-melting-point copolymer nylon, long carbon chain nylon, a main antioxidant and an auxiliary antioxidant. The mass ratio of the modified halogenated butyl rubber to the copolymer nylon 66 / 6 to the ternary low-melting-point copolymer nylon to the long carbon chain nylon to the main antioxidant to the auxiliary antioxidant is 20-80:10-60:5-30:5-30:0.01-3:0.02-2. Compared with the prior art, the thermoplastic elastomer material has excellent performance, the amount of the long carbon chain nylon needed in the preparation process is small, and production cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a thermoplastic elastomer material and a preparation method thereof. Background technique [0002] Dynamically vulcanized halogenated butyl rubber / nylon thermoplastic elastomer (hereinafter referred to as BNTPV) uses high-barrier halogenated butyl rubber and nylon resin as the dispersed phase and matrix phase respectively, with appropriate cross-linking agents, softeners, and anti-aging agents. and other additives. The outstanding features of BNTPV are high barrier properties, good fatigue and low temperature flex properties, so it is especially suitable for the production of inner liners of tubeless tires and pipes requiring anti-leakage. The barrier property of BNTPV is more than 5 times that of butyl rubber, so the BNTPV inner liner only needs 20% of the thickness of the butyl rubber inner liner to have a better air pressure retention rate, and BNTPV is used instead...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/28C08L25/16C08L77/06C08L77/02C08K13/02C08G69/36B60C5/00F16L11/04C09D123/28C09D125/16C09D177/06C09D177/02B29C47/92B29C48/92
Inventor 万辉
Owner 上海添衡商贸有限公司
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