Unlock instant, AI-driven research and patent intelligence for your innovation.

High damping thermoplastic polyurethane elastomer composition and preparation method thereof

A technology of thermoplastic polyurethane and elastomer, which is applied in the field of high damping thermoplastic polyurethane elastomer composition and its preparation, can solve the problems of complicated manufacture, high cost and powder pollution of modified graphene, and achieve good adhesion and easy operation , the effect of good processing performance

Active Publication Date: 2019-06-04
WANHUA CHEM GRP CO LTD
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is powder pollution in the preparation process of the above method, and the manufacture of modified graphene is complicated and expensive.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High damping thermoplastic polyurethane elastomer composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 70 parts of styrene-isobutylene copolymer and 30 parts of polyester thermoplastic polyurethane elastomer (purchased from Wanhua Chemical Group Co., Ltd., brand WHT-1172) with a hardness of 72D were mixed uniformly on a high-speed mixer, and the The mixture is melt-blended and extruded on an extruder with an extrusion temperature of 200-230° C. to obtain a high-damping thermoplastic polyurethane elastomer composition. Among them, the number-average molecular weight of the styrene-isobutylene copolymer is 100,000, and the styrene content is 15 wt%.

Embodiment 2

[0032] 60 parts of styrene-vinyl acetate copolymer and 40 parts of polyester thermoplastic polyurethane elastomer (purchased from Wanhua Chemical Group Co., Ltd., brand WHT-1164) with a hardness of 64D were mixed uniformly on a high-speed mixer, and The mixture is melt blended and extruded on an extruder with an extrusion temperature of 200-225°C to obtain a high-damping thermoplastic polyurethane elastomer composition. Among them, the number-average molecular weight of the styrene-vinyl acetate copolymer is 300,000, and the styrene content is 30 wt%.

Embodiment 3

[0034] 40 parts of styrene-acrylate copolymer and 60 parts of polyester thermoplastic polyurethane elastomer (purchased from Wanhua Chemical Group Co., Ltd., brand WHT-1185) with a hardness of 85A were mixed uniformly on a high-speed mixer, and The mixture is melted, blended and extruded on an extruder with an extrusion temperature of 165-190° C. to obtain a high-damping thermoplastic polyurethane elastomer composition. Among them, the number-average molecular weight of the styrene-acrylate copolymer is 50,000, and the styrene content is 50 wt%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a high damping thermoplastic polyurethane elastomer composition and a preparation method thereof. The composition is characterized by comprising: 30-70 weight parts of a thermoplastic polyurethane elastomer and 70-30 weight parts of a vinyl aromatic copolymer. Under a wide external forced motion frequency, the thermoplastic polyurethane elastomer composition provided by the invention has high damping, wide temperature range, good processing performance and excellent formability, and good adhesion with other polymers. Also the preparation process is simple and is easy to operate. The composition can be widely applied to vibration and noise reduction in transportation vehicles, industrial machinery, architecture and civil engineering, household electrical appliances,precision instruments, military equipment and other fields.

Description

technical field [0001] The invention belongs to the field of thermoplastic elastomer composite materials, in particular to a high-damping thermoplastic polyurethane elastomer composition and a preparation method thereof. Background technique [0002] With the development of industry, people's life has become more and more convenient, and the requirements for material properties in various industries have become more and more stringent. However, meaningless mechanical vibration and noise are flooding all aspects of people's lives. Therefore, it is necessary to explore a kind of material with excellent comprehensive performance and It can play the role of shock absorption and noise reduction. [0003] Thermoplastic polyurethane elastomer (TPU), as a polymer material with excellent performance, is widely used in automobile industry, machinery industry, medical industry, transportation, sporting goods and other industries. [0004] TPU is a thermoplastic elastomer that can be m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L23/22C08L75/06C08L31/04C08L25/14C08L75/08C08L47/00
Inventor 张元珂付小亮黄岐善
Owner WANHUA CHEM GRP CO LTD