Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Polyurethane for bearing, preparation method of polyurethane and polyurethane bearing

A polyurethane prepolymer, polyurethane technology, applied in the cantilever mounted on the pivot, transportation and packaging, rolling resistance optimization, etc., can solve the problems of shortened bearing service life, collision damage between the bearing body and the thrust rod, etc. Improve friction, not easy to hydrolyze and soften, and not easy to be worn

Pending Publication Date: 2022-08-05
烟台辰宇汽车部件有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that: in rainy weather, heat is emitted during the operation of the car, and the temperature and humidity of the environment in which polyurethane is used rises. and impact damage, resulting in shortened bearing service life

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
  • Polyurethane for bearing, preparation method of polyurethane and polyurethane bearing
  • Polyurethane for bearing, preparation method of polyurethane and polyurethane bearing
  • Polyurethane for bearing, preparation method of polyurethane and polyurethane bearing

Examples

Experimental program
Comparison scheme
Effect test

preparation example

[0046]S1, 50kg polycaprolactone diol, 70kg isophorone diisocyanate and 375kg tetrahydrofuran are mixed and heated to 45 ℃, and the reaction obtains a prepolymerized mixture;

[0047] S2, drop 0.1kg of dibutyltin dilaurate into the prepolymer mixture, heat to 60°C, and react at a constant temperature to obtain the prepolymer;

[0048] S3, add 6kg 1,4-butanediol to the prepolymer, and the reaction finishes to obtain a polyurethane prepolymer;

Embodiment 1

[0051] S1, the polyurethane prepolymer that 500kg above-mentioned preparation example makes, 1kg petroleum coke powder, 2kg aramid fiber, 2.5kg molybdenum trioxide and 1.5kg two chromium oxides are mixed and heated to 45 ℃, and constant temperature reaction obtains mixed material ;

[0052] S2, put 4kg MOFs into 2kg thioglycolic acid, mix evenly, dry and grind to obtain a composite protective agent, add the composite protective agent to the mixed material and mix evenly, dry and characterize, to obtain polyurethane for bearings.

Embodiment 2

[0054] S1, the polyurethane prepolymer that 550kg above-mentioned preparation example makes, 1.5kg petroleum coke powder, 3kg aramid fiber, 3kg molybdenum trioxide and 2kg two chromium oxides are mixed and heated to 45 ℃, and constant temperature reaction obtains mixed material;

[0055] S2, put 8kg MOFs into 4kg thioglycolic acid, mix evenly, dry and grind to obtain a composite protective agent, add the composite protective agent to the mixed material and mix evenly, dry and characterize, to obtain polyurethane for bearings.

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
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to polyurethane for a bearing, a preparation method thereof and a polyurethane bearing. The polyurethane for the bearing comprises the following raw materials in parts by weight: 500-600 parts of a polyurethane prepolymer; 6-18 parts of a composite protective agent; 4-6 parts of a friction increasing auxiliary agent; 5-7 parts of a reinforcing material; the composite protective agent comprises metal particles and mercaptoacetic acid, and the weight ratio of the metal particles to the mercaptoacetic acid is (2-18): 3. The preparation method comprises the following steps: S1, uniformly mixing the polyurethane prepolymer, the reinforcing material and the friction increasing aid, heating, and reacting at a constant temperature to obtain a mixed material; and S2, adding the composite protective agent into the mixed material, uniformly mixing, drying and determining the nature to obtain the polyurethane for the bearing. The polyurethane bearing comprises a polyurethane sleeve and a bearing body, and the polyurethane sleeve is connected with the bearing body. The method has the effect of reducing the adverse effect of polyurethane hydrolysis on the bearing.

Description

technical field [0001] The present application relates to the field of composite materials, in particular to a polyurethane for bearings, a preparation method thereof, and a polyurethane bearing. Background technique [0002] Bearings are an important component in contemporary machinery and equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. The rubber bearing is a kind of bearing used for supporting between the shaft and the shaft sleeve. [0003] The thrust rod is an auxiliary element in the suspension system. The main function of the thrust rod is to prevent the body from excessive lateral roll when turning, causing unnecessary traffic accidents. The thrust rod of the car is usually connected to the body of the car through a rubber bearing. There is a tendency of relative displacement between the thrust rod and the bearing body of the rubber bearing. The rubber s...

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): C08L75/06C08L87/00C08L77/10C08K3/22C08K5/37C08K9/12B60G7/00
CPCC08L75/06B60G7/00C08K2003/2255C08K2003/2251C08L2205/16C08L87/00C08L77/10C08K3/22C08K5/37C08K9/12Y02T10/86
Inventor 徐品艳傅运军孔磊高鹏孙立胜
Owner 烟台辰宇汽车部件有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com