A kind of vinyl ester resin and preparation method thereof

A technology of vinyl ester resin and epoxy resin, which is applied in the field of vinyl ester resin and its preparation, can solve problems such as greater influence of moisture, and achieve the effects of avoiding engineering accidents, shortening the construction period, and improving construction efficiency

Active Publication Date: 2017-02-08
SHANGHAI SHOWA HIGHPOLYMER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the current problem that vinyl ester resins are greatly affected by moisture in the curing process, the present invention provides a technical solution for vinyl ester resins that can be cured under certain humid conditions, and achieves the following objectives

Method used

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  • A kind of vinyl ester resin and preparation method thereof
  • A kind of vinyl ester resin and preparation method thereof
  • A kind of vinyl ester resin and preparation method thereof

Examples

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preparation example Construction

[0051] In the preparation method of the vinyl ester resin of the present invention, the equivalent ratio of the compound containing the epoxy resin structure to the unsaturated monocarboxylic acid is preferably 1:0.8-1.2, more preferably 1:0.9-1.1.

[0052] The compound containing epoxy resin structure can be bisphenol A type epoxy resin (Bisphenol A Epoxy Resin), bisphenol F type epoxy resin (Bisphenol F Epoxy Resin), novolac type epoxy resin (Novolac Type Epoxy Resin), One or more combinations of tetrabromo-bisphenol A epoxy resin (Tetrabromo-Bisphenol A Epoxy Resin), but not limited to the above options.

[0053] In the above-mentioned ring-opening polymerization step, as long as the compound containing the epoxy resin structure and the unsaturated monocarboxylic acid can be used for ring-opening polymerization, the polymerization conditions are not particularly limited, but preferably 90 Polymerization at ~130°C for 2 to 6 hours.

[0054] The vinyl ester resin of the pres...

Embodiment 1

[0062] Use bisphenol A epoxy resin and unsaturated monocarboxylic acid to carry out ring-opening polymerization reaction, and its equivalent ratio is bisphenol A epoxy resin: special unsaturated monocarboxylic acid: methacrylic acid=1.0:0.9:0.1; its reaction The compound is then diluted with styrene, the styrene content is 45%, and the prepared bisphenol A vinyl ester resin.

Embodiment 2

[0064]Use bisphenol A epoxy resin and unsaturated monocarboxylic acid to carry out ring-opening polymerization reaction, and its equivalent ratio is bisphenol A epoxy resin: special unsaturated monocarboxylic acid: methacrylic acid=1.0:0.6:0.4; its reaction The compound is then diluted with styrene, the styrene content is 45%, and the prepared bisphenol A vinyl ester resin.

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Abstract

The invention discloses vinyl ester resin and a preparation method thereof, belongs to the technical field of high molecular materials, and provides a technical scheme, that is, vinyl ester resin which can be cured under a certain damp condition, for solving the problem that the conventional vinyl ester resin is greatly affected by moisture in the curing process. A compound with an epoxy resin structure generates ring opening polymerization reaction with unsaturated monocarboxylic acid and the generated product is diluted in a reaction type diluent to generate vinyl ester resin. The curing degree of the resin under the damp environment condition is increased, a novel solution to application of the vinyl ester resin to anti-corrosion construction in a damp environment is provided, the influence of the environment factor on construction is reduced, the construction period is shortened, and the construction efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a vinyl ester resin cured under certain humid conditions and a preparation method thereof. Background technique [0002] Vinyl ester resin is a special unsaturated polyester resin with a vinyl group at the end of the molecule and an epoxy resin structure in the middle. It is usually prepared by ring-opening esterification of epoxy resin and unsaturated monobasic acid. , has the characteristics of two thermosetting resins, epoxy and unsaturated polyester; vinyl ester resin retains the basic chain segment of epoxy resin, and has good process performance of unsaturated polyester resin, which can be cured under suitable conditions , showing some special excellent properties, such as excellent mechanical properties, heat resistance and chemical resistance. [0003] The curing of vinyl ester resin is a free radical copolymerization reaction, generally using perox...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/17C08G59/16C09D163/10C09D5/08
Inventor 徐晓琳
Owner SHANGHAI SHOWA HIGHPOLYMER CO LTD
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