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Solvent-based insulating glue, round net fetal membrane using the same and preparation method thereof

An insulating glue, solvent-based technology, used in printing plate preparation, screen printing machines, devices for coating liquids on surfaces, etc. The effect of uniform layer thickness, high insulation performance and good printing effect

Active Publication Date: 2013-04-10
山东同大镍网有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no special insulating glue product for the production of tire molds. Currently, semi-fluid liquid glue is mainly used. During use, it must be heated to reduce its viscosity for coating, resulting in poor quality of tire molds and shrinkage. It is large and needs to be stuffed many times, and the bonding force with the tire mold is poor, it is easy to fall off, and the number of repeated use is less during use, generally about 100 times, and it is coated by manual or mechanical scraper during use. The volume is large, and the absolute verticality cannot be guaranteed in the circumference and length directions, which makes the coating layer uneven and affects the overall uniformity of the mold, resulting in high cost and poor quality of electroformed porous cylinders. At the same time, The inner wall of the rotary screen is not smooth, which affects the quality of textile printing and the printing and dyeing effect is poor

Method used

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  • Solvent-based insulating glue, round net fetal membrane using the same and preparation method thereof
  • Solvent-based insulating glue, round net fetal membrane using the same and preparation method thereof
  • Solvent-based insulating glue, round net fetal membrane using the same and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A solvent-based insulating adhesive, consisting of the following components by weight: 100 parts of E-20 bisphenol A epoxy resin, 23 parts of diluent neopentyl glycol diglycidyl ether, 8 parts of crosslinking agent dicyandiamide, Thixotropic agent sodium bentonite 0.7 parts, catalyst N(2-hydroxyphenyl)-N,N-dimethylurea 5 parts, dilution solvent 683 parts, the dilution solvent is N,N-dimethylformamide and butanone A mixture with a weight ratio of 3:1.

[0036] Results: The shrinkage rate of the obtained solvent-based insulating adhesive was 0.8%.

Embodiment 2

[0038] A solvent-based insulating adhesive, which consists of the following components by weight: 100 parts of E-35 bisphenol A epoxy resin, 30 parts of diluent 1,4-butanediol diglycidyl ether, crosslinking agent butylated phenolic 15 parts of resin, 1 part of fumed silica as a thixotropic agent, 6 parts of catalyst N-(3-chloro-4-methylphenyl)-N,N-dimethylurea, 912 parts of dilution solvent, the dilution solvent is N , A mixture of N-dimethylformamide and acetone at a weight ratio of 7:1.

[0039] Results: The shrinkage rate of the obtained solvent-based insulating adhesive was 0.9%.

Embodiment 3

[0041] A solvent-based insulating adhesive, consisting of the following components by weight: 100 parts of E-12 bisphenol A epoxy resin, 15 parts of diluent phenyl glycidyl ether, 6 parts of crosslinking agent sebacic acid dihydrazide, 0.5 parts of variable agent gas-phase sodium bentonite, 3 parts of catalyst m-toluenediamine, 498 parts of dilution solvent, the dilution solvent is a mixture of toluene and isopropanol in a weight ratio of 1:2.

[0042] Results: The shrinkage rate of the obtained solvent-based insulating adhesive was 0.84%.

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Abstract

The invention discloses a solvent-based insulating glue, a round net fetal membrane using the same and a preparation method thereof, wherein the solvent-based insulating glue comprises a main component and a diluting solvent; and the insulating glue is filled in the round net fetal membrane. The invention has the following advantages that: a glue layer has uniform thickness and smoothness after the insulating glue is coated; the insulating glue has strong metallic cohesion, high insulating property and lower than 1% of shrinkage rate during curing and solidifying, and is resistant to high temperature, acid, oxidation and electrolytic corrosion; as the embedded insulating glue of the round net fetal membrane, the insulating glue not only satisfies the required insulation effect completely, but also guarantees quality of the round net and ensures the printing smooth and the printing effect excellent; repeated use of the round net fetal membrane is more than 200 times, continuous usage time is as long as more than 60 hours, shear strength is reached to 395 KGF / cm<2>, insulating and voltage-resistant performance is 25 KV / mm, and coefficient of thermal expansion is less than 4.5*10<-5>cm / degree centigrade.

Description

technical field [0001] The invention relates to a rotary screen tire mold, in particular to a solvent-type insulating adhesive, a rotary screen tire film using the insulating adhesive and a preparation method thereof, belonging to the field of textile printing equipment. Background technique [0002] Electroformed porous rotary screen is mainly used for textile printing, and it is a kind of printing auxiliary equipment. The quality of the tire mold used in the process of making electroformed porous cylinder plays a key role in the printing quality. At present, there are no insulating adhesive products specifically for the production of tire molds. At present, semi-fluid liquid glue is mainly used. During use, it must be heated to reduce its viscosity for coating, resulting in poor quality of tire molds and shrinkage. Large, it needs to be filled many times, and the bonding force with the tire mold is poor, it is easy to fall off, and the number of repeated use is less durin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/02C08K3/36C08K3/34C08G59/62C08G59/50C08G59/40B41F15/38B41C1/14B05D3/02
Inventor 孙俊成魏福彬苏窈徐莉
Owner 山东同大镍网有限公司
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