Epoxy resin film

A technology of epoxy resin and resin, which is applied in the field of epoxy resin film, can solve the problems of poor heat resistance, chemical corrosion resistance and wear resistance, difficulty in controlling the thickness of the scraping film, and poor effect of manual scraping, so as to facilitate flattening Type, not easy to settle, avoid poor effect

Inactive Publication Date: 2020-11-03
芜湖桦振新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the deficiencies in the prior art, to solve the problem that the epoxy resin film in the prior art has general adhesion and low strength, and poor performances such as heat resistance, chemical corrosion resistance, and wear resistance, the epoxy resin film should be bonded at the same time. The effect of artificial scraping film during preparation is poor and it is difficult to control the thickness of the scraping film. A kind of epoxy resin film proposed by the present invention

Method used

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preparation example Construction

[0035] The preparation method of described epoxy resin film comprises the steps:

[0036] S1: Add the mixture of E-44 epoxy resin, hydrogenated nitrile rubber, curing agent and polyvinyl chloride paste resin to the acetone solution to obtain a blended solution; E-44 epoxy resin has good fluidity and is easy to mix with auxiliary materials. Easy molding and processing, good dimensional stability after curing, shrinkage rate less than 2%, is the resin with the smallest shrinkage rate of thermosetting resins, thermal expansion coefficient 6-10.5%, excellent bonding performance, electrical insulation performance, mechanical properties and chemical stability are all good ; and hydrogenated nitrile rubber has good heat resistance, excellent chemical corrosion resistance and compression set resistance due to its highly saturated structure, as well as high strength, high tear performance and high wear resistance. Advantages, which can improve the performance of epoxy resin film; polyv...

Embodiment approach

[0043] As an embodiment of the present invention, the inorganic mixed filler is mixed with nano-montmorillonite and talcum powder, and the ratio of nano-montmorillonite and talcum powder is 2:1; during work, nano-montmorillonite can make The strength, elongation and other properties of the epoxy resin film are greatly improved by 20%, and some properties can be improved several times. Talc powder can improve the wear resistance and anti-skid performance.

[0044] As an embodiment of the present invention, the type of the curing agent is a phenol amino alcohol curing agent; the phenol amino alcohol curing agent is obtained by modifying an amine curing agent, which is non-toxic and safe.

[0045] As an embodiment of the present invention, the bottom of the fixed tube 4 is fixedly provided with a spring compression tube 20; the top of the spring compression tube 20 is provided with a light pressing plate; The pull cord passes through the inside of the spring compression tube 20; ...

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Abstract

The invention belongs to the technical field of epoxy resin films, and particularly relates to an epoxy resin, film which is prepared from the following raw materials in parts by weight: 40-60 parts of E44 epoxy resin, 30-50 parts of hydrogenated butadiene-acrylonitrile rubber, 3-5 parts of inorganic mixed filler, 6-10 parts of phospholipid molecule solution, 2.5-5 parts of curing agent and 6.5-7-10 parts of polyvinyl chloride paste resin. The preparation method includes following steps: adding a mixture of E44 epoxy resin, hydrogenated butadiene-acrylonitrile rubber, a curing agent and polyvinyl chloride paste resin into an acetone solution to obtain a blended solution; and adding a phospholipid molecule solution and an inorganic mixed filler into the blended solution to obtain a uniformly dispersed solution. A roller rotates back and forth to drive the two ends of the flattening tank body to move upwards and sink intermittently through the pull ropes, and then an epoxy resin solutioncan be uniformly and efficiently spread in the flattening tank body to reach a self-leveling state; a vibration exciter is arranged at the bottom of the flattening tank body, wherein the vibration exciter enables the bottom of the flattening tank body to be in a vibration state, so that the epoxy resin solution is more uniformly spread.

Description

technical field [0001] The invention belongs to the technical field of epoxy resin films, in particular to an epoxy resin film. Background technique [0002] Epoxy resin refers to the general term for a class of polymers containing more than two epoxy groups in the molecule. It is the polycondensation product of epichlorohydrin and bisphenol A or polyol. Due to the chemical activity of the epoxy group, a variety of compounds containing active hydrogen can be used to open the ring, cure and cross-link to form a network structure, so it is a thermosetting resin. Bisphenol A epoxy resin not only has the largest output and the most complete variety, but also new modified varieties are still increasing, and the quality is constantly improving. [0003] For the modification of epoxy resin, there are many documents at home and abroad. CN20031011182 discloses a flexible thermosetting adhesive film and its preparation method. The adhesive film is mainly based on epoxy resin, toughe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L15/00C08L27/06C08K3/34C08K5/521C08J5/18
CPCC08J5/18C08J2363/00C08J2415/00C08J2427/06C08K3/34C08K3/346C08K5/521C08K2201/011
Inventor 李婉婉王文昭
Owner 芜湖桦振新材料科技有限公司
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