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A kind of photosensitive resin, refurbishable fast installation partition primer and its preparation method and application
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A photosensitive resin and primer technology, applied in primers, epoxy resin coatings, coatings, etc., can solve the problems of poor adhesion of primers, easy renovation failure, etc., to achieve strong adhesion, environmental friendliness, organic solvents The effect of low emissions
Active Publication Date: 2021-09-28
广州市波士特新材料科技有限公司
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[0004] The purpose of the present invention is to overcome the problem that the adhesion of the primer in the prior art is not strong during refurbishment, and the refurbishment fails easily, and a kind of photosensitive resin is provided.
Method used
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Embodiment 1～5 and comparative example 1～3
[0079] The present embodiment and comparative example provide a kind of photosensitive resin, and its formula is as follows table 1.
[0080] Table 1 embodiment 1~5 and comparative example 1~3 formula (unit: wt %) of photosensitive resin
[0081]
[0082] Preparation of photosensitive resin:
[0083] Under the environment of 60-90°C, add the limited amount of epoxy resin, acrylic acid or methacrylic acid, zirconium acetylacetonate and tert-butyl hydroquinone in the reactor into the reactor, mix well, and heat to 80-80°C 120°C, react for 2.0~10.0hh, until the acid value of the resin end point is less than 5mgKOH / g.
[0084] Specifically, the mixing temperature in Example 1 is 90°C, heated to 110°C, and the reaction time is 9.0h.
[0085] The mixing temperature in Examples 2 and 3 is 60°C, heated to 80°C, and the reaction time is 2.0h.
[0086] The mixing temperature in Examples 4 and 5 is 90°C, heated to 120°C, and the reaction time is 10.0h.
[0087] The preparation met...
Embodiment 6～14 and comparative example 4～8
[0096] The present embodiment provides a kind of primer, and its formula is as table 3~5.
[0097] The formula (unit: wt%) of table 3 embodiment 6~10
[0098]
[0099] The formula (unit: wt%) of table 4 embodiment 11~14
[0100]
[0101] Among them, in Examples 11-12, the materials of each component are consistent with those in Example 6; in Examples 13-14, the monomer is selected from hexanediol diacrylate, the powder is selected from alumina, and the defoamer is selected from BYK- 014, Tego-450 is used as the leveling agent, HR-4036C is selected as the curing accelerator, BYK-9076 is selected as the dispersant, and the photosensitive resin provided in Example 1 is selected as the photosensitive resin.
[0102] The formula (unit: wt%) of table 5 comparative example 4~6
[0103]
[0104] Preparation of primer:
[0105] Put the formulations of Examples 6-14 and Comparative Examples 4-6 into the dispersing barrel respectively, disperse them with a high-speed disperse...
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Abstract
The invention provides a photosensitive resin, a refurbishable quick-install partition primer, a preparation method and application thereof. The photosensitive resin is composed of the following components by mass fraction: 30-80% epoxy resin; 1-30% epichlorohydrin; 10-40% acrylic acid or methacrylic acid; 0.001-0.1% zirconium acetylacetonate; Hydroquinone 0.01~1%. In the present invention, through the synergistic effect of zirconium acetylacetonate, epichlorohydrin and epichlorohydrin, the obtained photosensitive resin has better substrate adhesion, workability and electron beam curing performance. The refurbishable quick-install partition primer added with a specific content of the photosensitive resin has strong adhesion, can be cured by electron beams, and has high spraying efficiency.
Description
technical field [0001] The invention belongs to the field of primer materials, and in particular relates to a photosensitive resin, a refurbishable quick-install partition primer and a preparation method and application thereof. Background technique [0002] The traditionally used quick-installed partitions are prone to aging and surface damage after frequent use, and it is necessary to update them; the method of renovating the partition coating generally requires removing the existing coating (such as grinding, etc.). When the technology of the existing partition primer is repeatedly coated and refurbished, if the old layer is not removed cleanly, the problem of interlayer adhesion will easily occur and cause the refurbishment to fail. [0003] Therefore, it is necessary to develop a primer that can give better recoating performance when the partition is refurbished and polished, so as to realize the rapid renovation of the partition surface. Contents of the invention ...
Claims
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