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Halogen-free high temperature resistant resin

A high-temperature-resistant resin and resin technology, applied in the field of resin materials, can solve problems such as corrosion of metal components, achieve the effects of avoiding pollution, improving thermal stability, and low curing shrinkage

Inactive Publication Date: 2016-08-24
XIAN CHAOMA COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, due to the failure of components in the valve tower, partial discharge and other reasons, the fire accident of the converter valve occurs. In terms of load bearing and protection, the biggest disadvantage of epoxy resin insulating parts added with halogen flame retardants is that a large amount of hydrogen halide gas will be formed when burning. This gas is highly corrosive to metal components after absorbing water, so it is necessary to develop a A new, halogen-free high temperature resistant resin, in order to produce UHV converter valve insulation parts with high mechanical properties, electrical properties and heat resistance, so as to improve the safety and reliability of UHV DC converter valves

Method used

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Examples

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Effect test

Embodiment 1

[0020] The halogen-free high-temperature-resistant resin of this embodiment is prepared by mixing the following raw materials uniformly at room temperature: 45g of halogen-free flame-retardant resin, 100g of thermosetting epoxy resin, 115g of curing agent, and 1g of accelerator; The glass transition temperature is not less than 180°C; the halogen-free flame-retardant resin is resorcinol tetraphenyl diphosphate, the thermosetting epoxy resin is AFG-90 epoxy resin, and the curing agent is methyl hexahydrophthalic anhydride. The agent is dimethylbenzylamine.

Embodiment 2

[0022] This example is the same as Example 1, except that the halogen-free high temperature resistant resin is phosphorus-containing hydroquinone epoxy resin, bis(3-glycidyl) phenyl phosphate, DOPO type phosphorus-containing resistor Flame-retardant epoxy resin, ODOPB type phosphorus-containing flame-retardant epoxy resin, O, O, O-triglycidyl phenyl silicate, diglycidyloxydimethylsilane, [2-(3,4- Epoxycyclohexyl)ethyl]diphenylsilane, methylphenyl polysiloxane resin, bisphenol A type benzoxazine resin, bisphenol F type benzoxazine resin, MDA type benzoxazine resin , phenolphthalein type benzoxazine resin or dicyclopentadiene type benzoxazine resin, or phosphorus-containing hydroquinone epoxy resin, resorcinol tetraphenyl diphosphate, bis(3-glycidyl) phenyl phosphate ester, DOPO type phosphorus flame retardant epoxy resin, ODOPB type phosphorus flame retardant epoxy resin, O, O, O-triglycidyl phenyl silicate, diglycidyloxy dimethyl Silane, [2-(3,4-epoxycyclohexyl)ethyl]diphenyl...

Embodiment 3

[0024] The halogen-free high-temperature-resistant resin of this embodiment is prepared by mixing the following raw materials uniformly at room temperature: 5 kg of halogen-free flame-retardant resin, 100 kg of thermosetting epoxy resin, 99 kg of curing agent, and 5 kg of accelerator; the halogen-free flame-retardant resin is O, O, O-triglycidyl phenyl silicate, the thermosetting epoxy resin is 30kg TDE-85 epoxy resin and 70kg AG-80 epoxy resin, the curing agent is curing agent DDM, curing agent DDS and curing agent DADMT is a mixed curing agent mixed according to the mass ratio of 20:15:65, and the accelerator is undecyl imidazole.

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Abstract

The invention discloses halogen-free high temperature resistant resin. The halogen-free high temperature resistant resin is prepared from the following raw materials in parts by weight: 5-45 parts of halogen-free flame retardant resin, 100 parts of thermosetting epoxy resin, 99-115 parts of curing agent and 1-5 parts of accelerators, wherein the halogen-free flame retardant resin is one or more of phosphorus containing halogen-free flame retardant epoxy resin, halogen-free flame retardant benzoxazine resin and silicon containing halogen-free flame retardant epoxy resin; the thermosetting epoxy resin is trifunctional epoxy resin and / or tetrafunctional epoxy resin or a mixture of one or more of trifunctional epoxy resin and tetrafunctional epoxy resin and bifunctional epoxy resin. The halogen-free high temperature resistant resin has the advantages that the halogen-free high temperature resistant resin has the effect of improving the flame retardance and thermal stability of epoxy resin, not only avoids environmental pollution caused by brominated epoxy resin in the using and recovering processes but also can achieve lasting flame retardant effects, can maintain original thermal properties and mechanical properties of resin and is suitable for the winding technology of glass fibers and carbon fibers.

Description

technical field [0001] The invention belongs to the technical field of resin materials, and in particular relates to a halogen-free high-temperature-resistant resin. Background technique [0002] As the core equipment of UHV DC transmission, the UHV DC converter valve is the core functional unit to realize the conversion of AC and DC power. It has the technical characteristics of high technical difficulty, high integration, many interdisciplinary fields, and high reliability requirements. However, in practical applications, due to the failure of components in the valve tower, partial discharge and other reasons, the fire accident of the converter valve occurs. In terms of load bearing and protection, the biggest disadvantage of epoxy resin insulating parts added with halogen flame retardants is that a large amount of hydrogen halide gas will be formed when burning. This gas is highly corrosive to metal components after absorbing water, so it is necessary to develop a A bran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L79/04C08L83/04C08K5/523C08K5/5435C08G59/68C08G59/42
CPCC08L63/00C08G59/4223C08G59/686C08K5/523C08K2201/014C08L2201/02C08L2201/08C08L2201/22C08L2203/20C08L2205/02C08L2205/025C08L2205/03C08L2205/035
Inventor 谢瑞广陈燕梅王希瑶
Owner XIAN CHAOMA COMPOSITE MATERIALS