Intelligent lubricating particle releasing wear-resisting material and preparation method thereof

A kind of wear-resistant material and intelligent technology, applied in the field of wear-resistant materials, can solve the problems of intelligent release of wear-resistant additives, inconsistent performance of materials inside and outside, and decline of wear-resistant performance, so as to achieve green and pollution-free preparation process, avoid The effect of unstable material properties and low wear rate

Inactive Publication Date: 2017-05-31
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the wear-resistant additives added to the polyurethane resin by this method, such as silicone oil, modified silicone oil, wax powder and modified wax powder, etc., they have the disadvantage of easy migration, resulting in inconsistent performance and instability of the material. It has the disadvantage of good wear resistance in the initial stage, but when the surface lubricating particles are consumed, the wear resistance drops sharply in the later stage
Patent CN103756285A discloses a preparation method of polyurethane elastomer with high wear resistance, which greatly improves the wear resistance of polyurethane materials, but the material preparation process is relatively complicated, and does not have intelligent release of wear-resistant additives function of

Method used

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  • Intelligent lubricating particle releasing wear-resisting material and preparation method thereof

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preparation example Construction

[0035] A method for preparing lubricating particle intelligent release wear-resistant material, the steps are as follows:

[0036] Step 1, the preparation of oil phase solution:

[0037] Mix the core material and polyisocyanate, (melting temperature of the core material + 5°C) ≤ mixing temperature ≤ (melting temperature of the core material + 10°C), and stir rapidly to obtain a uniformly mixed oil phase solution;

[0038] In step 1, the capsule core material is one of solid paraffin and liquid paraffin or a mixture of two in any proportion; the polyisocyanate is not particularly limited, and the polyisocyanate can be diisocyanate, triisocyanate, dimer of diisocyanate, One or more of the trimer of diisocyanate, dimer of triisocyanate, trimer of triisocyanate, dimer of diisocyanate and triisocyanate, trimer of diisocyanate and triisocyanate in any proportion Mixing, preferably toluene diisocyanate (TDI), diphenylmethane diisocyanate (IPDI), diphenylmethane diisocyanate (MDI) or...

Embodiment 1

[0059] Lubricating particles intelligently release wear-resistant materials, which are composed of 10wt% polyurethane microcapsules and 90wt% polyurethane resin.

[0060] The preparation method of the above-mentioned lubricating particle intelligent release wear-resistant material:

[0061] Step 1. Weigh the solid paraffin and TDI according to the mass ratio of 1:5, mix them at 70° C., and stir them rapidly to obtain a uniformly mixed oil phase;

[0062] Step 2, take sodium dodecylbenzenesulfonate and deionized water according to the mass ratio of 2:98, and mix them uniformly to obtain a medium solution;

[0063] Step 3: Weigh PEG600 and deionized water according to the mass ratio of 1:4, and prepare a reaction monomer solution with a concentration of 20%;

[0064] Step 4. Mix the oil phase and the medium solution at a mass ratio of 1:4, and emulsify on a high-speed shear emulsifier for 90 minutes at a speed of 5000 rpm to obtain an O / W solution;

[0065] Step 5. Gradually a...

Embodiment 2

[0068] Lubricating particles intelligently release wear-resistant materials, which are composed of 16wt% polyurethane microcapsules and 84wt% polyurethane resin.

[0069] The preparation method of the above-mentioned lubricating particle intelligent release wear-resistant material:

[0070] Step 1. Weigh the solid paraffin and TDI according to the mass ratio of 1:5, mix them at 70° C., and stir them rapidly to obtain a uniformly mixed oil phase;

[0071] Step 2, take sodium dodecylbenzenesulfonate and deionized water according to the mass ratio of 2:98, and mix them uniformly to obtain a medium solution;

[0072] Step 3: Weigh PEG600 and deionized water according to the mass ratio of 1:4, and prepare a reaction monomer solution with a concentration of 20%;

[0073] Step 4: Mix the oil phase and the medium solution at a mass ratio of 1:4, and emulsify on a high-speed shear emulsifier at a speed of 5000 rpm for 90 minutes;

[0074] Step 5. Gradually add the reaction monomer so...

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Abstract

The invention provides an intelligent lubricating particle releasing wear-resisting material and a preparation method thereof, belongs to the technical field of wear-resisting materials, and is intended to solve the technical problems in the prior art that outer and inner performances of a polyurethane resin material are different and are not stable, the initial-stage wear-resisting performance is good, the later-period wear-resisting performance is suddenly reduced after surface lubricating particles are consumed, the material has no intelligent releasing function and a preparation process is complicated. The intelligent lubricating particle releasing wear-resisting material provided by the invention is prepared from 2wt%-40wt% of a polyurethane microcapsule and 60wt%-98wt% of polyurethane resin, wherein the grain diameter of the polyurethane microcapsule is 12-20 microns and the polyurethane microcapsule is composed of a capsule core and a capsule wall for packaging the capsule core; the capsule core is made of solid paraffin wax and/or liquid paraffin wax; and the capsule wall is made of polyurethane resin. The wear-resisting material provided by the invention has good wear-resisting performance and storage stability and also has an intelligent releasing function; and a phenomenon that performances of the material are not stable because the local temperature is too high when the polyurethane material is abraded, can be avoided.

Description

technical field [0001] The invention relates to the technical field of wear-resistant materials, in particular to a wear-resistant material with intelligent release of lubricating particles and a preparation method thereof. Background technique [0002] Polyurethane resin has the advantages of good shock absorption, high strength, wear resistance, tear resistance, good flexibility, oil resistance and good blood compatibility, and has been widely used in industry, agriculture, military, transportation, medicine and other fields. [0003] With the gradual expansion of the application field of polyurethane resin, the lack of wear resistance limits the wide application of polyurethane resin to a certain extent. There are a large number of strong polar groups such as -NCO, -OH and urea in the molecular structure of polyurethane, which makes its surface energy larger, the friction coefficient is higher, and it is easy to generate a lot of heat during the friction process. The use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L75/08C08L91/06C08G18/76C08G18/75C08G18/48C08G18/10C08G18/32B01J13/14
CPCC08L75/04B01J13/14C08G18/10C08G18/4833C08G18/755C08G18/7614C08L2205/02C08L2205/025C08L2205/03C08L2205/035C08L75/08C08L91/06C08G18/3206
Inventor 刘佳郇彦王杰杨冲冲杨小牛
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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