TPV thermoplastic elastomer composite sheet, method for making TPV thermoplastic elastomer composite sheet

A thermoplastic elastomer and composite sheet technology, used in chemical instruments and methods, electronic equipment, synthetic resin layered products, etc., can solve the problems of low speaker life, easy aging of speakers, and easy adhesion during rewinding, and achieve low density. , The effect of blister molding is superior, and the effect of improving the elasticity ratio of the product

Active Publication Date: 2018-06-05
浙江亿铭新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of TPV thermoplastic elastomer composite sheet that is not easy to age and not easy to stick when rewinding, aiming at the problems that the loudspeaker of the prior art material is easy to age, makes the life of the speaker low, and is easy to stick when rewinding , TPV thermoplastic elastomer composite sheet production method

Method used

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  • TPV thermoplastic elastomer composite sheet, method for making TPV thermoplastic elastomer composite sheet
  • TPV thermoplastic elastomer composite sheet, method for making TPV thermoplastic elastomer composite sheet
  • TPV thermoplastic elastomer composite sheet, method for making TPV thermoplastic elastomer composite sheet

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Embodiment 1

[0025] 1) The mass percentage components of the middle layer are composed of 40% EPDM, 31% softener, 16% polypropylene, 3% vulcanizing agent, 0% black masterbatch, and 10% talc; the mass percentage components of the surface layer: Composed of 50% EPDM rubber, 9.2% softener, 35% polypropylene, 2.4% vulcanizing agent, 2.5% black masterbatch, 0.1% anti-aging agent and 0.8% anti-blocking agent;

[0026] 2) Granulation: According to the ratio of the middle layer, first take EPDM rubber and softener for plasticizing, then add polypropylene, vulcanizing agent, black masterbatch, and talc to pre-disperse to obtain the middle layer mixture, and mix the middle layer The material is added to the twin-screw granulator for dynamic vulcanization and extruded into intermediate layer particles. The main machine speed of the granulator is 35 rpm, the feeding speed is 33 rpm, and the melt pressure is between 5 MPa; Quality ratio, take EPDM rubber and softener for plasticization, then add polypropy...

Embodiment 2

[0032] The components and process parameters of the intermediate layer and surface layer are shown in Table 1. The mass percentage components of the vulcanizing agent used are: bismaleimide 40%, octyl phenolic resin 35%, di-tert-butylperoxycumene 25%. The anti-blocking agent uses methacrylate polymer; the rest is the same as in Example 1. The thickness of the prepared sheet is 0.5mm Example 3

Embodiment 3

[0033] The components and process parameters of the intermediate layer and surface layer are shown in Table 1. The mass percentage components of the vulcanizing agent are: bismaleimide 30%, octyl phenolic resin 20%, di-tert-butylperoxycumene 50%, the anti-blocking agent uses methacrylate polymer; the rest is the same as in Example 1. The thickness of the prepared sheet is 0.4mm Example 4

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Abstract

In order to overcome the defects of short service life of the loudspeaker and high adhesion tendency during rewinding due to the high aging tendency of the loudspeaker prepared from the material in the prior art, the invention relates to a TPV (thermoplastic vulcanizate) thermoplastic elastomer composite sheet with the advantages of low aging tendency and low adhesion tendency during rewinding and a manufacturing method thereof. In the TPV thermoplastic elastomer composite sheet, the middle layer is composed of 40-63% of ethylene propylene diene copolymer, 20-45% of softening agent, 10-30% of polypropylene, 2-5% of vulcanizing agent, 0-5% of black color master batch and 3-10% of talcum powder; the surface layer is composed of 43-65% of ethylene propylene diene copolymer, 7.5-30% of softening agent, 23-45% of polypropylene, 2-5% of vulcanizing agent, 0-5% of black color master batch, 0-2% of anti-aging agent and 0.5-1% of antiblocking agent. Due to the addition of the antiblocking agent, the composite sheet has low adhesion tendency during rewinding. The TPV adopts the surface layer raw material of the composite sheet, and thus, also has the antiblocking property.

Description

[0001] This application is a divisional application for a patent application whose application number is CN201310187851, the application date is 2013.05.17, and the name is "TPV, TPV thermoplastic elastomer composite sheet, TPV thermoplastic elastomer composite sheet manufacturing method". Technical field [0002] The invention relates to a manufacturing method of a TPV thermoplastic elastomer composite sheet and a TPV thermoplastic elastomer composite sheet. Background technique [0003] At present, most of the speaker materials on the market are rubber or PVC rubber. The speakers of this material are prone to aging, causing inert deformation and moire due to aging, which affects the tone and quality of the speakers, thereby affecting the use of the speakers. In addition, the use of the above materials The sheet tends to stick after rewinding. Summary of the invention [0004] The purpose of the present invention is to provide a TPV thermoplastic elastomer composite sheet that is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L23/12C08L61/06C08L83/04C08L33/10C08K3/34C08K5/3415C08K5/14B32B25/04B32B25/08B32B25/14B32B27/18B32B27/32B32B33/00B29B9/10B29C47/06
CPCB29B9/10B29C48/21B29L2009/00B32B25/042B32B25/08B32B25/14B32B27/18B32B27/32B32B33/00B32B2250/24B32B2250/40B32B2270/00B32B2307/306B32B2307/536B32B2307/552B32B2307/554B32B2307/582B32B2307/714B32B2307/7145B32B2307/72B32B2457/00C08L23/12C08L23/16C08L2205/02C08L2205/03C08L61/06C08K3/34C08K5/3415C08K5/14C08L83/04C08L33/10
Inventor 毛丛敏林咸雄
Owner 浙江亿铭新材料科技有限公司
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