Alicyclic epoxy resin injection material for composite insulator low-temperature-resistant hard sheath and preparation method thereof

A composite insulator and epoxy resin technology, applied in the field of shed materials, can solve the problems of easy cracking of the insulator sheath, and achieve the effect of not easy cracking

Pending Publication Date: 2021-06-18
浙江紫电新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a composite insulator low temperature resistant hard sheath alicyclic epoxy resin injection material and its preparation method to solve the problem that the insulator sheath is easy to crack under low temperature conditions in the prior art

Method used

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  • Alicyclic epoxy resin injection material for composite insulator low-temperature-resistant hard sheath and preparation method thereof
  • Alicyclic epoxy resin injection material for composite insulator low-temperature-resistant hard sheath and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment relates to a composite insulator low temperature resistant hard sheath cycloaliphatic epoxy resin injection material, which includes, in parts by weight: 100 parts of epoxy resin, 100 parts of curing agent, 5 parts of toughening agent, accelerator 1 part, 1 part of flame retardant, 0.5 part of silane coupling agent, 2 parts of silicon dioxide, 150 parts of aluminum hydroxide filler; Wherein, described epoxy resin comprises 95% (being 95 parts by weight of epoxy resin) ) of the a material and 5% (i.e. 5 parts) of the b material of epoxy resin weight portion, a material is 3,4-epoxycyclohexyl carboxylate-3 ', 4'-epoxy cyclohexyl methyl ester, b material It is polyether polyol.

[0025] The above-mentioned curing agent is a combination of tetrahydrophthalic anhydride and methyl tetrahydrophthalic anhydride; the above-mentioned toughening agent is a combination of hydroxyl-terminated liquid rubber and epoxy-terminated liquid rubber. The aforementioned silic...

Embodiment 2

[0032] This embodiment involves a composite insulator low temperature resistant hard sheath alicyclic epoxy resin injection material, which includes, in parts by weight: 100 parts of epoxy resin, 60 parts of curing agent, 20 parts of toughening agent, accelerator 9 parts, 10 parts of flame retardants, 5 parts of silane coupling agents, 10 parts of silicon dioxide, 100 parts of aluminum hydroxide fillers; Wherein, described epoxy resin comprises 70% (being 70 parts by weight of epoxy resin) ) material a and 30% (i.e. 30 parts) of material b by weight of epoxy resin, material a is bis ((3,4-epoxycyclohexyl) methyl) adipate, and material b is polyethylene Diol diglycidyl ether.

[0033] The above-mentioned curing agent is hexahydrophthalic anhydride; the above-mentioned toughening agent is carboxyl-terminated liquid rubber. The aforementioned silica is a combination of nano silica and micro silica.

[0034] The preparation method of the cycloaliphatic epoxy resin injection mate...

Embodiment 3

[0036] This embodiment relates to a composite insulator low temperature resistant hard sheath cycloaliphatic epoxy resin injection material, which includes, in parts by weight: 120 parts of epoxy resin, 100 parts of curing agent, 50 parts of toughening agent, accelerator 1 part, 20 parts of flame retardant, 10 parts of silane coupling agent, 1 part of silicon dioxide, 250 parts of aluminum hydroxide filler; Wherein, described epoxy resin comprises 50% (being 60 parts by weight of epoxy resin) ) of material a and 50% (i.e. 60 parts) of material b by weight of epoxy resin, material a is 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexyl formate and caprolactone The combination of the polymerization product of cyclohexane-1,2-dicarboxylic acid diglycidyl ester, and the material b is polypropylene glycol diglycidyl ether.

[0037] The above-mentioned curing agent is a combination of methyl hexahydrophthalic anhydride and succinic anhydride; the above-mentioned toughening agent is core-...

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Abstract

The invention relates to an alicyclic epoxy resin injection material for a low-temperature-resistant hard sheath of a composite insulator and a preparation method of the alicyclic epoxy resin injection material. The alicyclic epoxy resin injection material comprises epoxy resin, a curing agent, a flexibilizer, an accelerant, a flame retardant, a silane coupling agent, silicon dioxide and an aluminum hydroxide filler. The epoxy resin comprises a material a which accounts for 30-95% of the epoxy resin in parts by weight and a material b which accounts for 5-70% of the epoxy resin in parts by weight, wherein the material a is one or a combination of more substances selected from 3',4'-epoxycyclohexylmethyl 3,4-epoxycyclohexanecarboxylate, bis((3,4-epoxycyclohexyl)methyl)adipate, a polymerization product of 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexanecarboxylate and caprolactone, diglycidyl 1,2-cyclohexanedicarboxylate and hydrogenated bisphenol A epoxy resin; and the material b is one or a combination of more of polyether polyol, polyethylene glycol diglycidyl ether, polypropylene glycol diglycidyl ether and epoxy-terminated polyether. The hard sheath made of the injection material has better tensile property and low temperature resistance, and is prevented from cracking when bearing tensile load.

Description

technical field [0001] The invention relates to an umbrella shed material for a composite insulator of a power transmission line, in particular to an alicyclic epoxy resin injection material for a composite insulator low temperature resistant hard sheath and a preparation method thereof. Background technique [0002] An insulator is a component widely used in the field of high-voltage external insulation, and its function is mechanical connection and electrical insulation. At present, the insulators widely used are silicone rubber composite insulators. Although silicone rubber composite insulators have good hydrophobicity and strong tracking resistance, after a long period of actual operation, silicone rubber composite insulators still have unsolvable problems such as poor bird peck resistance and abnormal heating. Therefore, some researchers have changed the shed shed material of the composite insulator from silicone rubber to alicyclic epoxy resin. Alicyclic epoxy resin ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L71/00C08L71/02C08L15/00C08L13/00C08K3/36C08K3/22C08K5/54C08K13/02
CPCC08L63/00C08K2003/2227C08L2205/035C08L2205/025C08L2312/00
Inventor 王黎明刘育豪曹彬赵晨龙吴奕霖刘蔚宁
Owner 浙江紫电新材料有限公司
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