A kind of thickening formula of vinyl ester resin matrix and thickening method thereof

A technology of vinyl ester resin and matrix, which is applied in the field of modification of vinyl ester resin for composite material prepreg, which can solve the problem of restricting the application field of vinyl ester resin and cannot use alkali metal oxide or hydroxide to thicken Methods and other issues, to achieve excellent physical and mechanical properties, reduce curing shrinkage, increase the molecular chain length and the effect of system viscosity

Inactive Publication Date: 2019-01-04
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary vinyl resins do not contain carboxyl groups, so alkali metal oxide or hydroxide thickening methods cannot be used, which greatly limits the application fields of vinyl ester resins

Method used

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  • A kind of thickening formula of vinyl ester resin matrix and thickening method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of thickening formula of vinyl ester resin matrix, described thickening formula comprises vinyl ester resin, thickener, thickening aid, thickening accelerator, initiator, and its proportioning is in vinyl ester resin weight part Based on: 100 parts of vinyl ester resin (specifically bisphenol A epoxy vinyl ester resin), 5 parts of thickener TDI, 4 parts of thickening aid HPA, thickening accelerator dibutyl dilauric acid 0.04 parts of tin, 3 parts of initiator BPO.

[0027] A kind of thickening method of vinyl ester resin matrix, specifically comprises the steps:

[0028] (1) Prepare raw materials: Prepare 100 parts of vinyl ester resin (bisphenol A epoxy vinyl ester resin), 5 parts of thickening agent TDI, 4 parts of thickening aid HPA, thickening accelerator two 0.04 parts of butyl tin dilaurate, 3 parts of initiator BPO, set aside;

[0029] (2) Vinyl ester resin (bisphenol A epoxy vinyl ester resin), thickener TDI, and thickening accelerator dibutyltin dilaur...

Embodiment 2

[0034] A kind of thickening formula of vinyl ester resin matrix, described thickening formula comprises vinyl ester resin, thickener, thickening aid, thickening accelerator, initiator, and its proportioning is in vinyl ester resin weight part Based on: 100 parts of vinyl ester resin (bisphenol A epoxy vinyl ester resin), 7 parts of thickener TDI, 5 parts of thickening aid HPA, 0.04 parts of thickening accelerator dibutyltin dilaurate parts, 2 parts of initiator BPO.

[0035] A kind of thickening method of vinyl ester resin matrix, specifically comprises the steps:

[0036] (1) Prepare raw materials: Prepare 100 parts of vinyl ester resin (bisphenol A epoxy vinyl ester resin), 7 parts of thickening agent TDI, 5 parts of thickening aid HPA, thickening accelerator two 0.04 parts of butyl tin dilaurate, 2 parts of initiator BPO, for later use;

[0037] (2) Vinyl ester resin (bisphenol A epoxy vinyl ester resin), thickener TDI, and thickening accelerator dibutyltin dilaurate are ...

Embodiment 3

[0042] A kind of thickening formula of vinyl ester resin matrix, described thickening formula comprises vinyl ester resin, thickener, thickening aid, thickening accelerator, initiator, and its proportioning is in vinyl ester resin weight part Based on: 100 parts of vinyl ester resin (phenolic epoxy vinyl ester resin), 7 parts of thickener HDI, 5 parts of thickening aid HEA, 0.04 parts of thickening accelerator dibutyltin dilaurate, initiator Dose 3 parts of methyl ethyl ketone (MEKP).

[0043] A kind of thickening method of vinyl ester resin matrix, specifically comprises the steps:

[0044] (1) Prepare raw materials: Prepare 100 parts of vinyl ester resin (phenolic epoxy vinyl ester resin), 7 parts of thickener HDI, 5 parts of thickening aid HEA, thickening accelerator dibutyl 0.04 part of tin dilaurate, 3 parts of initiator methyl ethyl ketone (MEKP), standby;

[0045] (2) Vinyl ester resin ((phenolic epoxy vinyl ester resin)), thickener HDI, thickening accelerator dibutyl...

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Abstract

The invention relates to a thickening method and formula for a vinyl ester resin matrix.The thickening method and formula are characterized in that 100 parts by weight of vinyl ester resin, 2-5 parts by weight of thickener, 4-6 parts by weight of thickening agent, 0.03-0.05 part by weight of thickening accelerant and 2-4 parts by weight of initiator are included.The vinyl ester resin can be rapidly and controllably thickened within short time, and the influences on the physical and mechanical performance and curing process performance of the resin are low.The acrylic acid hydroxyl ester thickening agent is adopted for replacing styrene monomers in the vinyl ester resin, and environment friendliness is better achieved.Prepared composite prepreg can be widely applied to the fields of building structure and bridge facility repairing, mechanical part production and the like.

Description

technical field [0001] The invention belongs to the modification of vinyl ester resin for composite material prepreg, and is suitable for the field of composite material prepreg production. technical background [0002] Glass fiber reinforced vinyl ester resin composite materials are widely used at present. Vinyl ester resins are different from general unsaturated polyester resins. Vinyl ester resins are usually prepared by ring-opening addition reaction of methacrylic acid or acrylic acid and epoxy resin. The main chain of the molecule retains the skeleton of epoxy resin. structure, the end group is a carbon-carbon double bond, which not only has the excellent physical and mechanical properties of epoxy resin, but also takes into account the advantages of good curing process performance of unsaturated polyester resin. However, ordinary vinyl resins do not contain carboxyl groups, so alkali metal oxide or hydroxide thickening methods cannot be used, which greatly limits the...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C08G18/67C08J5/24
CPCC08G18/672C08G18/674C08J5/24C08J2375/04
Inventor段华军张里王钧杨小利唐玉山胡智枫陈小双
OwnerWUHAN UNIV OF TECH