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

Method for preparing polyurethane elastomer for spherical tyre

A polyurethane elastomer and spherical tire technology, applied in the field of polyurethane foam, can solve the problems of low strength and wear resistance, affecting the friction between the tire and the ground, and the material has no water absorption, so as to reduce slipping and improve safety sex, increase the effect of friction

Inactive Publication Date: 2019-05-03
荆晓东
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the strength and wear resistance of polyurethane elastomers for spherical tires on the market are not very high, and the materials basically have no water absorption, which will inevitably affect the friction between the tire and the ground;

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of preparation method of polyurethane elastomer for spherical tires, 400 parts of Zibo Dexin Federal Chemical Engineering Co., Ltd. produce DMD-6000E15 (functionality 3, molecular weight 6000, primary hydroxyl content 15%), 200 parts of polyester polyol (molecular weight 6000), 5 parts of hydrolysis stabilizer, 5 parts of ultraviolet absorber UV327, put into a 2L reactor and heat up to 110 degrees to dehydrate until the moisture is less than 0.02, pour 80 parts of TDI into a three-necked flask, stir and react at 90 degrees for 2 hours, add 5 parts Glass fiber, 155 parts of MOCA were stirred evenly, and vulcanized in an oven at 100 degrees for 10 hours to obtain the product.

Embodiment 2

[0029] A preparation method of polyurethane elastomer for spherical tires, 500 parts of DMD-8000E20 (functionality 3, molecular weight 8000, primary hydroxyl content 20%), 100 parts of polyester polyol (molecular weight 1000), 8 parts of hydrolysis stabilizer, Put 8 parts of ultraviolet absorber UV328 into a 2L reactor and heat up to 110 degrees to dehydrate until the moisture is less than 0.02. Pour it into a three-necked flask and add 200 parts of TDI. Stir and react at 100 degrees for 2.5 hours. Add 20 parts of glass fiber and 215 parts of MOCA and stir evenly. Oven 100 degree vulcanization 14 hours obtains product.

Embodiment 3

[0031] A preparation method of polyurethane elastomer for spherical tires, 100 parts of DMD-3000E10 (functionality 3, molecular weight 3000, primary hydroxyl content 10%), 150 parts of polyester polyol (molecular weight 4000), 10 parts of hydrolysis stabilizer, Put 10 parts of ultraviolet absorber UV531 into a 2L reactor and heat up to 110 degrees to dehydrate until the moisture is less than 0.02. Pour it into a three-necked flask and add 150 parts of TDI. Stir and react at 110 degrees for 3 hours. Add 35 parts of glass fiber and 235 parts of E300 and stir evenly. Oven 100 degree vulcanization 16 hours obtains product.

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

PropertyMeasurementUnit
Functional group degreeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing polyurethane elastomer for a spherical tyre and belongs to the field of polyurethane foaming. The polyurethane elastomer is composed of a component A and a component B. The component A is prepared from the following raw materials: 100 to 500 parts of polyether, 100 to 200 parts of polyester polyol, 5 to 20 parts of a hydrolysis stabilizer, and 5 to 20 parts of an ultraviolet absorber. The component B is prepared from the following raw materials: 5 to 35 parts of glass fibers, 50 to 200 parts of TDI, and 25 to 300 parts of a chain extender. The polyurethane material is applied to a spherical tyre and has certain water absorbing effect; when a vehicle moves on a road surface with water, the surface of the tyre absorbs water and is softened to enhance friction force, thus reducing slippery problem and improving safety.

Description

technical field [0001] The invention relates to a preparation method of polyurethane elastomer for spherical tires, belonging to the field of polyurethane foam. Background technique [0002] Spherical tires are the development direction of the new automotive revolution. Compared with ordinary tires, spherical tires can rotate 360 ​​degrees without dead angle, which greatly improves the mobility of the car and reduces the possibility of overturning. It is the development direction of future car braking methods. . [0003] At present, the strength and wear resistance of polyurethane elastomers for spherical tires on the market are not very high, and the materials basically have no water absorption, which will inevitably affect the friction between the tire and the ground; [0004] The polyurethane material involved in this patent can be applied to spherical tires. It has high strength and wear resistance, and the material has certain water absorption. When passing through a w...

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 Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/42C08G18/32C08K7/14
Inventor 荆晓东
Owner 荆晓东