Deformation adaptive macromolecule bearing composite material and preparation method and application thereof

A composite material, self-adaptive technology, used in bearing components, shafts and bearings, chemical instruments and methods, etc., can solve the problems of low speed friction coefficient, stick-slip noise, stress concentration bearing damage, etc., to improve wear resistance. , No stick-slip noise, the effect of improving impact resistance

Inactive Publication Date: 2016-11-23
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems in the prior art that the friction layer of the rubber sliding bearing has a large low-speed friction coefficient, stick-slip noise, and the friction layer of the resin s

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
  • Deformation adaptive macromolecule bearing composite material and preparation method and application thereof
  • Deformation adaptive macromolecule bearing composite material and preparation method and application thereof
  • Deformation adaptive macromolecule bearing composite material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] The preparation method of deformable self-adaptive polymer bearing composite material, the steps are as follows:

[0035] Step 1. According to the requirements of the above-mentioned elastic intermediate layer, the isocyanate and polyol are reacted to obtain polyurethane prepolymer, and then the chain extender and the polyurethane prepolymer are used for chain extension reaction to obtain the mixture, and then the mixture is poured on the fiber reinforced resin composite material And curing and molding under the conditions of 90~130℃, 1~30min, to obtain the elastic intermediate layer;

[0036] Step 2. According to the requirements of the friction surface layer, the isocyanate and the lubricant are mixed uniformly, and then reacted with the polyol to obtain a polyurethane prepolymer, and then the chain extender and the polyurethane prepolymer are used for chain extension reaction to obtain the mixture, and then the mixture It is poured onto the elastic middle layer, and cured...

Example Embodiment

[0039] Example 1

[0040] Preparation of Deformation Adaptive Polymer Bearing Composite:

[0041] Such as figure 1 As shown, 1 mol of polytetrahydrofuran polyol (molecular weight 2000g / mol, average functionality of 2) was reacted with 3 mol of MDI at 70°C for 2 hours to obtain a prepolymer with a mass percentage of NCO groups of 5.6%, and then 1.8 mol of 1,4-butanediol and prepolymer were used for chain extension reaction, the reaction temperature was 40℃, and the time was 10min to obtain the mixture. The mixture was poured on the outer wall of the glass fiber reinforced epoxy resin cylinder by a centrifuge. , After curing and molding, an elastic intermediate layer with a hardness of 75 Shore A is obtained;

[0042] Mix 0.7 mol polycarbonate polyol (molecular weight 2000g / mol, average functionality 2), 0.3 mol polypropylene oxide polyol (molecular weight 400g / mol, average functionality 2) and 76g molybdenum disulfide. Then react with 5mol of TDI at 60℃ for 3h to obtain a prepolymer...

Example Embodiment

[0043] Example 2

[0044] Preparation of Deformation Adaptive Polymer Bearing Composite Material:

[0045] Such as figure 2 As shown, 1 mol of polycaprolactone polyol (molecular weight 2000g / mol, average functionality is 2.2) is reacted with 2.2 mol of PPDI at 70°C for 3 hours to obtain a prepolymer with a mass percentage of NCO groups of 3.9% Then, 0.80 mol of 2-methyl-propylene glycol is used for chain extension reaction with the prepolymer. The reaction temperature is 70°C and the time is 10 minutes to obtain the mixture. Then the carbon fiber reinforced unsaturated polyester fiber board is placed in the mold and centrifuged. The machine casts the mixture on the carbon fiber reinforced unsaturated polyester fiber board, and after curing and molding, an elastic middle layer with a hardness of 80 Shore A is obtained;

[0046] 0.2mol polycarbonate polyol (molecular weight 2000g / mol, average functionality 2), 0.8mol polytetrahydrofuran ether polyol (molecular weight 1000g / mol, aver...

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
Molecular weightaaaaaaaaaa
Hardnessaaaaaaaaaa
Hardnessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a deformation adaptive macromolecule bearing composite material and a preparation method and application thereof, and belongs to the technical field of sliding bearings. The problems that a rubber sliding bearing friction layer in the prior art is large in low-speed friction coefficient and has stick slip noise, and a resin sliding bearing friction layer cannot adapt to stress concentration and bearing damage caused by shaft deformation are solved. A backing enhancement layer, an elastic middle layer and a friction surface layer are tightly arranged from outside to inside in sequence according to the composite material. The backing enhancement layer is prepared from fiber reinforced resin composite materials, the elastic middle layer is prepared from flexible polyurethane, the hardness value of the elastic middle layer is Shaw 70-85 A, the friction surface layer is prepared from the composite material of rigid polyurethane and lubricating agent, and the hardness value of the friction surface layer is Shaw 50-80 D. The composite material can produce adaptivity for deformation of a shaft, has low water lubrication and dry friction coefficients, produces no stick slip noise under low-speed conditions, and is applicable to being used as the sliding bearing friction layer material.

Description

technical field [0001] The invention relates to a deformation adaptive polymer bearing composite material and a preparation method and application thereof, belonging to the technical field of sliding bearings. Background technique [0002] Sliding bearings refer to bearings that work under sliding friction. Commonly used sliding bearing materials are bearing alloys (also known as Babbitt alloys or white alloys), wear-resistant cast iron, copper-based and aluminum-based alloys, powder metallurgy materials, plastics, rubber, hardwood, carbon graphite, polytetrafluoroethylene (Teflon) Dragon, PTFE), modified polyoxymethylene (POM), etc. Among them, sliding bearings made of polymer materials can be self-lubricating or use water as a lubricant. Compared with traditional metal sliding bearings, they have the advantages of no pollution, low energy consumption, low friction coefficient, and high safety performance. has been widely applied. [0003] The friction layer of polymer 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
IPC IPC(8): B32B27/40B32B27/18B32B27/08B32B17/04B32B27/04B32B27/12B32B27/38B32B9/00B32B9/04B32B1/00B32B33/00F16C33/20
CPCB32B27/40B32B1/00B32B27/08B32B27/12B32B27/18B32B33/00B32B2262/101B32B2262/106B32B2307/554F16C33/203F16C33/208
Inventor 郇彦王杰刘佳杨小牛
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap