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Vacuum infusion resin and preparation method and application thereof

A vacuum introduction and resin technology, applied in the field of resin, can solve the problems of short pot life, insufficient toughness, insufficient penetration, etc., and achieve the effect of moderate curing time, excellent performance and avoiding waste.

Active Publication Date: 2016-08-24
GOODE EIS SUZHOU CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the vacuum-introduced resin system used in the vacuum casting process in the prior art has the defects of short pot life and insufficient toughness, so there is a risk of insufficient penetration and easy cracking when casting medium-voltage or high-voltage electrical insulation parts

Method used

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  • Vacuum infusion resin and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Preparation of nano rubber particle mixture: take 100 parts of bisphenol A epoxy resin into the container by mass, add 20 parts of nano rubber particles, 0.8 parts of wetting and dispersing agent, and 1.5 parts of coupling agent , Stirring at a temperature of 70° C. at a stirring speed of 2000 r / min for 1 h, and cooling to room temperature to prepare a mixture of nano rubber particles.

[0027] 2) Preparation of toughened epoxy resin: add 15 parts of dispersed nano rubber particle mixture and 10 parts of 1,6-hexanediol to 90 parts of bisphenol F epoxy resin in parts by mass Diglycidyl ether and 1,4-butanediol diglycidyl ether are a 1:1 fatty glycidyl ether active diluent mixed at room temperature at 2000r / min for high-speed stirring for 0.5-1h to make the mixture uniform.

[0028] 3) In parts by mass, add 115 parts of curing agent tetramethylguanidine to the above-mentioned mixed solution, the stirring speed is 1000-1500r / min under normal temperature and long pressure, th...

Embodiment 2

[0030] 1) Preparation of nano rubber particle mixture: Take 100 parts of bisphenol A epoxy resin into the container by mass, add 30 parts of nano rubber particles, 1 part of wetting and dispersing agent, and 2 parts of coupling agent , Stirring for 1.2 h at a temperature of 80° C. at a stirring speed of 2000 r / min, and cooling to room temperature to prepare a mixture of nano rubber particles.

[0031] 2) Preparation of toughened epoxy resin: add 10 parts of dispersed nano rubber particle mixture and 5 parts of 1,6-hexanediol to 90 parts of bisphenol F epoxy resin by mass parts Diglycidyl ether and 1,4-butanediol diglycidyl ether are a 1:1 fatty glycidyl ether active diluent mixed at room temperature at 2000r / min for high-speed stirring for 0.5-1h to make the mixture uniform.

[0032] 3) Add 105 parts of the curing agent tetramethylguanidine in the above-mentioned mixture by parts by mass, and the stirring speed is 1000-1500r / min under normal temperature and long pressure, and the s...

Embodiment 3

[0034] 1) Preparation of nano rubber particle mixture: Take 100 parts of bisphenol A epoxy resin into the container by mass, add 35 parts of nano rubber particles, 1.2 parts of wetting and dispersing agent, and 2.5 parts of coupling agent , Stirring at a temperature of 90° C. at a stirring speed of 2000 r / min for 1.5 h, and cooling to room temperature to prepare a mixture of nano rubber particles.

[0035] 2) Preparation of toughened epoxy resin: add 20 parts of dispersed nano rubber particle mixture and 15 parts of butyl glycidyl ether to 90 parts of bisphenol F epoxy resin in parts by mass. ,4-Butanediol diglycidyl ether is a 1:1 mixture of fatty glycidyl ether active diluent, at room temperature using 2000r / min for high-speed stirring for 0.5-1h to make the mixture uniform.

[0036] 3) In parts by mass, add 125 parts of curing agent tetramethylguanidine to the above-mentioned mixed solution, the stirring speed is 1000-1500r / min under normal temperature and long pressure, the sti...

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Abstract

The invention discloses vacuum infusion resin and a preparation method and application thereof. The vacuum infusion resin comprises toughening epoxy resin accounting for 50-70% of the total mass of the vacuum infusion resin and a curing agent accounting for 30-50% of the total mass of the vacuum infusion resin. The vacuum infusion resin has the advantages that the toughening epoxy resin enhances the toughness of the vacuum infusion resin and lowers the viscosity of the vacuum infusion resin, and later process operations are facilitated; tetramethyl guanidine is used as the curing agent of the toughening epoxy resin and is moderate in curing time and curing temperature, and the cured vacuum infusion resin is low in viscosity and excellent in performance; the vacuum infusion resin is low in viscosity, high in toughness, simple in preparation method and widely applicable to pouring field of medium- and high-voltage electric insulating parts and has a long working life under 40 DEG C.

Description

Technical field [0001] The invention belongs to the technical field of resins, and specifically relates to a vacuum-introduced resin and a preparation method and application thereof. Background technique [0002] At present, medium-voltage and high-voltage electrical insulators such as dry-type distribution transformers, supports, and electrical components are widely used. These electrical insulators function as electrical insulation and load-bearing. In the preparation process of these electrical insulation parts, epoxy resin is one of the important materials. However, ordinary epoxy resins have a high viscosity and are directly applied to the production of medium and high-voltage electrical insulation laminates, which will not only cause difficulty in penetration and injection pressure High, long filling time, and the bubbles entrained in the resin are not easy to remove. [0003] At present, a vacuum casting process is used to realize the adhesion of epoxy resin to electrical i...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L21/00C08G59/50
CPCC08G59/5006C08L63/00C08L21/00
Inventor 孙建平周鑫张小宾
Owner GOODE EIS SUZHOU CORP LTD
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