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Modified polyester elastomer film and preparation method thereof

A technology of modifying polyester and elastomer, which is applied in the field of elastomer film, which can solve the problems of fast crystallization speed, inability to blow molding, easy adhesion of film products, etc., and achieve the effects of good mechanical properties, convenient cutting and low viscosity

Pending Publication Date: 2021-01-26
江苏鑫易达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

[0005] The technical problem mainly solved by the present invention is to provide a modified polyester elastomer film and its preparation method, which can solve the problems that the existing domestic TPEE material crystallization speed is too fast to be blow-molded, and the film product is easy to stick when rewinding

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0024] The invention discloses a modified polyester elastomer film, comprising the following components in parts by mass:

[0025] 100 parts of TPEE resin;

[0026] 5 parts of POE resin, through the addition of the POE resin, the melt index of the TPEE resin system can be increased, thereby improving the fluidity during blow molding, reducing the impact of fast crystallization on moldability, and improving film-forming performance;

[0027] 15 parts of fillers, the fillers include nano-silica, nano-calcium carbonate and nano-alumina with a mass ratio of 2:1:1; through the compound use of fillers, on the one hand, it can play a reinforcing role, and on the other hand, On the one hand, it can reduce the viscosity of TPEE resin after film formation, and realize smooth winding and cutting of the film;

[0028] 5 parts of anti-adhesive modifier; said anti-adhesive modifier includes stearyl erucamide and E wax with a mass ratio of 2:1; both stearyl erucamide and E wax can function ...

Embodiment 2

[0032] The invention discloses a modified polyester elastomer film, comprising the following components in parts by mass:

[0033] 100 parts of TPEE resin;

[0034] 10 parts of POE resin, through the addition of the POE resin, the melt index of the TPEE resin system can be improved, thereby improving the fluidity during blow molding, reducing the impact of fast crystallization on moldability, and improving film-forming performance;

[0035] 20 parts of fillers, the fillers include nano-silica, nano-calcium carbonate and nano-alumina with a mass ratio of 3:1:0.5; through the compound use of fillers, on the one hand, it can play a reinforcing role, and on the other On the one hand, it can reduce the viscosity of TPEE resin after film formation, and realize smooth winding and cutting of the film;

[0036] 10 parts of anti-sticking modifier; said anti-sticking modifier includes stearyl erucamide and E wax with a mass ratio of 3:1; both stearyl erucamide and E wax can function as ...

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Abstract

The invention discloses a modified polyester elastomer film and a preparation method thereof. The modified polyester elastomer film comprises the following components in parts by mass: 100 parts of TPEE resin, 1-10 parts of POE resin, 15-30 parts of a filler, 5-15 parts of an anti-sticking modifier, 1-3 parts of an antioxidant and 1-5 parts of a plasticizer. According to the modified polyester elastomer film and the preparation method thereof, the POE resin, the accelerator, the filler and the anti-sticking modifier are added, so film-forming properties can be improved, and viscosity after film formation is reduced; through the selection design of a screw specification of a preparation process and a blow molding ratio of a die head, plasticizing performance is further improved, a crystallization speed is reduced, and the film-forming properties are improved; and domestic polyester elastomer in China can be subjected to blow molding film preparation, the prepared polyester elastomer film is good in mechanical property, low in viscosity and convenient to wind and cut, and the yield of the polyester elastomer film is increased.

Description

technical field [0001] The invention relates to the field of elastomer films, in particular to a modified polyester elastomer film and a preparation method thereof. Background technique [0002] Thermoplastic polyester elastomers (TPEE) are block copolymers containing polyester hard segments and polyether soft segments. Among them, the polyether soft segment and the uncrystallized polyester form an amorphous phase, and the polyester hard segment partially crystallizes to form a crystalline microdomain, which acts as a physical crosslinking point. TPEE has the elasticity of rubber and the strength of engineering plastics; the soft segment gives it elasticity, making it like rubber; the hard segment gives it processing properties, making it like plastic. Compared with rubber, it has better processing performance and longer service life; compared with engineering plastics, it also has the characteristics of high strength, but better flexibility and dynamic mechanical propertie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00C08L23/08C08K13/02C08K5/20C08K5/12C08K3/36C08K3/26C08K3/22C08J5/18
CPCC08J5/18C08J2367/00C08J2423/08C08K13/02C08K5/20C08K5/12C08K3/36C08K2003/265C08K2003/2227
Inventor 陆建国吴志东张利云
Owner 江苏鑫易达新材料科技有限公司
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