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Method for preparing water-soluble acrylic epoxy resin

A technology of acrylic epoxy resin and epoxy resin, which is applied in the field of polymer materials, can solve problems such as gel, and achieve the effect of stable reaction process and rich varieties

Inactive Publication Date: 2011-05-04
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the conditions of the reaction are not well controlled, it will lead to gelation.

Method used

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  • Method for preparing water-soluble acrylic epoxy resin
  • Method for preparing water-soluble acrylic epoxy resin

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Experimental program
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Embodiment Construction

[0016] The present invention can be better illustrated by the following examples and comparative examples, but these examples should not be construed as limiting the scope of the present invention.

[0017] The epoxy resin used is commercially available bisphenol A resin, and epoxy resins with different molecular weights can be selected according to the purpose of the resin, and the molecular weight can be from 400-5000g / mol.

[0018] Embodiment 1-5 is the preparation of epoxy acrylate resin

[0019] (1) The weight of raw materials is shown in Table 1, and the amounts in the table are parts by weight

[0020] Table 1

[0021]

[0022] (2) Synthesis method

[0023] (1) In the reactor, the amount of the acrylic acid monomer given in Example 1 in Table 1 includes 35% of the initiator and the chain transfer agent and the solvent and mixes homogeneously, while another 15% of the solvent is placed in another three-neck In the flask, use a constant flow pump to slowly drop the...

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PUM

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Abstract

The invention relates to a method for preparing water-soluble acrylic epoxy resin, which comprises the following steps of: performing half ring-opening reaction on epoxy resin and alkyl monobasic acid under the catalysis of tertiary amine, and controlling the molar ratio of the alkyl monobasic acid to epoxy groups in the epoxy resin to be 1:2 in the reaction process; and performing esterification reaction on the epoxy resin and acrylic polymer under the catalysis of the tertiary amine. By accurately controlling the using amount of the alkyl monobasic acid, the ring-opening reaction degree of the epoxy resin and the generation of an esterification product are ensured. The epoxy resin subjected to half ring-opening reaction comprises only one epoxy group, and only one carboxyl is esterified when epoxy monobasic acid ester obtained through half ring-opening reaction and acrylic acid are subjected to esterification reaction, so the reaction process is stable, gelatination can be avoided, and the method is suitable for mass production.

Description

technical field [0001] The invention relates to a preparation method of water-soluble acrylic epoxy resin, which belongs to the field of polymer materials. Background technique [0002] With the increasingly stringent environmental protection regulations and the continuous improvement of people's awareness of environmental protection, water-based coatings will become the mainstream in the future. However, after the polymer resin is water-based, it often leads to some performance disadvantages. For this reason, people use methods such as adding additives, curing cross-linking, and physical mixing of various resins in order to improve the performance of coatings, but there is still a certain gap. In order to further improve the performance of water-based resins, in recent years, many researchers have carried out research on the composite reaction of various resins, that is, using chemical reaction processes such as grafting, esterification, or polymerization to composite two ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/02C08G59/14C08F220/18C08F220/14C08F220/06C08F8/14
Inventor 朱华刘敏汪的华甘复兴
Owner WUHAN UNIV
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