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

A kind of thermoplastic polyurethane and its preparation method and application

A technology of thermoplastic polyurethane and polyurethane catalyst, applied in the field of thermoplastic polyurethane, can solve the problems of not being able to satisfy industrial applications, complex processing technology, general performance, etc., and achieve the effects of excellent biodegradability, tight molecular arrangement and strong crystallinity

Active Publication Date: 2019-09-20
WANHUA CHEM GRP CO LTD
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above methods have disadvantages such as complex processing technology and general performance, which cannot meet the needs of industrial applications.

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
  • A kind of thermoplastic polyurethane and its preparation method and application
  • A kind of thermoplastic polyurethane and its preparation method and application
  • A kind of thermoplastic polyurethane and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be further described below in conjunction with the examples, and the following examples are only used as illustrations of the present invention, and are not intended to limit the scope of the present invention.

[0036] The abrasion test is based on ISO 4649, the Shore hardness test is based on ASTM D2240, the tensile test is based on ASTM D412, the tear strength is based on ASTM D624, and the biobased content test is based on ASTM D6866. The biodegradability is tested by embedding in soil according to ASTM D5526.

[0037] Synthesis of said polyester polyols all use the same overall process preparation: the process used is to add the calculated amount of dibasic acid, dibasic alcohol, 5ppm titanium tetrabutoxide into a reactor with a capacity of 20L at room temperature, The mixture was gradually heated to 220 °C with stirring, and the reaction was maintained at this temperature for 10 h. In the above synthesis process, the resulting water is ...

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 thermoplastic polyurethane and a preparation method thereof. The thermoplastic polyurethane is obviously better in wear resistance than ordinary thermoplastic polyurethane, and the abrasion can be reduced by about 5%-60%. The thermoplastic polyurethane is mainly prepared from the following raw materials: (1) 30-80 parts by mass of polyester polyol; (2) 1-80 parts by mass of polylactide polyol (3) 20-50 parts by mass of di The glycol chain extender of isocyanate (4) 3-17 mass parts; (5) the polyurethane catalyst of 0-0.0003 mass parts. The thermoplastic polyurethane of the present invention is suitable for casters, shoe materials, mine screens, seals, conveyor belts, electronic products and other products requiring good wear resistance and biological environmental protection.

Description

technical field [0001] The invention relates to the technical field of thermoplastic polyurethane. It specifically relates to a thermoplastic polyurethane with excellent wear resistance and its preparation method and application. The thermoplastic polyurethane of the present invention is suitable for casters, shoe materials, mine screens, seals, conveyor belts, electronic products, etc., which require good wear resistance and Bio-friendly products. Background technique [0002] Thermoplastic polyurethane elastomer (TPU) is a polymer composed of soft soft segments and rigid hard segments. It has rubber elasticity at low temperature and can be plasticized and molded after rising temperature. TPU has excellent mechanical properties, such as a wide adjustable range of hardness, good mechanical properties, oil resistance, wear resistance, etc., so it is extremely important and extensive in industrial applications. [0003] The wear resistance of TPU refers to the ability of the...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/32C08G18/42C08G18/76C08G18/66
Inventor 孙鹏举黄岐善翟志斌邢宝源
Owner WANHUA CHEM GRP CO LTD