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Preparation of epoxy resin adhesive and application of epoxy resin adhesive in friction matching pair molding process

A technology of epoxy resin and molding process, applied in the direction of modified epoxy resin adhesive, adhesive type, adhesive heating bonding method, etc. Improve transportation experimental conditions and other issues to achieve the effect of enhanced wear resistance, reduced friction coefficient, and reduced gap

Inactive Publication Date: 2015-11-18
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing friction test technology can usually only measure the friction coefficient and wear under the common pairing, which is quite different from the friction and wear properties required by the actual working conditions of the material, especially in the tribological behavior of the steel wire rope. Substantial use, it is difficult to meet the needs of industrial and mining equipment lifting transportation, lifting equipment and other experimental conditions

Method used

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  • Preparation of epoxy resin adhesive and application of epoxy resin adhesive in friction matching pair molding process
  • Preparation of epoxy resin adhesive and application of epoxy resin adhesive in friction matching pair molding process

Examples

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Embodiment 1

[0023] The preparation method of epoxy resin adhesive comprises the following steps: Step 1. According to the molar ratio of 1:2, take epoxy resin and p-hydroxyanisole in a flask and heat it to 90°C in an oil bath, and then dropwise add acrylic acid and Prepare a mixed solution with p-dimethylbenzylamine, continue to heat up to 110°C, take 0.3g of the mixed solution as a sample, and titrate the acid value of the sample with a standard solution of potassium hydroxide ethanol with a concentration of 0.1mol / L. When the value is less than 3mgKOH / g, stop heating to prepare epoxy acrylate monoester for later use;

[0024] Step 2. According to the weight ratio of 3:2.25:0.24:0.24:10, weigh the polyurethane prepolymer, reactive diluent, photoinitiator, curing agent and the epoxy acrylate monoester prepared in step 2 and mix them to obtain Colloidal mixture, spare:

[0025] Step 3. According to the weight ratio of 1:3:3, weigh the microcapsule powder, white carbon black and absolute e...

Embodiment 2

[0028] The preparation method of epoxy resin adhesive comprises the following steps: Step 1. According to the molar ratio of 1:2, take epoxy resin and p-hydroxyanisole in a flask and heat it to 90°C in an oil bath, and then dropwise add acrylic acid and Prepare a mixed solution with p-dimethylbenzylamine, continue to heat up to 110°C, take 0.5g of the mixed solution as a sample, and titrate the acid value of the sample with a standard solution of potassium hydroxide ethanol with a concentration of 0.1mol / L. When the value is less than 3mgKOH / g, stop heating to prepare epoxy acrylate monoester for later use;

[0029] Step 2. According to the weight ratio of 3:2.25:0.24:0.24:10, weigh the polyurethane prepolymer, reactive diluent, photoinitiator, curing agent and the epoxy acrylate monoester prepared in step 2 and mix them to obtain Colloidal mixture, spare:

[0030] Step 3. According to the weight ratio of 1:3:3, weigh the microcapsule powder, white carbon black and absolute e...

Embodiment 3

[0033] The preparation method of epoxy resin adhesive comprises the following steps: Step 1. According to the molar ratio of 1:2, take epoxy resin and p-hydroxyanisole in a flask and heat it to 90°C in an oil bath, and then dropwise add acrylic acid and Prepare a mixed solution with p-dimethylbenzylamine, continue to heat up to 110°C, take 0.45g of the mixed solution as a sample, and titrate the acid value of the sample with a standard solution of potassium hydroxide ethanol with a concentration of 0.1mol / L. When the value is less than 3mgKOH / g, stop heating to prepare epoxy acrylate monoester for later use;

[0034] Step 2. According to the weight ratio of 3:2.25:0.24:0.24:10, weigh the polyurethane prepolymer, reactive diluent, photoinitiator, curing agent and the epoxy acrylate monoester prepared in step 2 and mix them to obtain Colloidal mixture, spare:

[0035] Step 3. According to the weight ratio of 1:3:3, weigh the microcapsule powder, white carbon black and absolute ...

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Abstract

The invention provides preparation of an epoxy resin adhesive and an application of the epoxy resin adhesive in a friction matching pair molding process. The epoxy resin adhesive is prepared from white carbon black capsule powder and a colloid mixture in the weight ratio being 2:5, wherein the colloid mixture comprises a polyurethane prepolymer, a reactive diluent, a photoinitiator, a curing agent and epoxy monoacrylate in the weight ratio being 3:2.25:0.24:0.24:10. In the friction matching pair molding process, a steel wire rope is adhered to a steel ring through the adhesive; in an abrasion test for a gasket and a friction steel ring, the white carbon black capsule powder can massively absorb friction heat generated in a material friction process, double bonds are introduced into epoxy monoacrylate and can be initiated through light and heat, a macromolecular cross-linked network or a long-chain linear compound with higher relative molecular mass is formed, the adhesion performance is improved, when the prepared friction matching pairs is applied to an abrasion testing machine, gaps between tests and actual working conditions are reduced, and a test result can be more adaptive to the actual working conditions.

Description

technical field [0001] The invention relates to an adhesive for friction materials, in particular to the preparation of an epoxy resin adhesive and its application in the molding process of friction partners. Background technique [0002] Resin-based friction materials are mainly composed of four major components: resin matrix, fiber reinforced materials, friction performance modifiers and fillers, which are then hot-pressed. Resin matrix is ​​an important component of friction materials, and its properties directly affect the thermal decay performance, recovery performance, friction performance and mechanical properties of friction materials. With the improvement of various vehicles and machinery usage conditions, the requirements for the thermal performance of the friction material and the stability of the braking torque are continuously improved, thus putting forward new requirements for the resin matrix. Therefore, the resin must have a suitable modulus to ensure a larg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/10C09J175/04C09J11/04C08G59/17C09J5/02C09J5/06F16B11/00
Inventor 潘炳力魏风军刘永辉卢斌伟黄如青李宁博周文鹏
Owner HENAN UNIV OF SCI & TECH
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