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UVLED light-curing wood coating

A wood coating and photocuring technology, applied in the field of photocuring, can solve the problems of easy yellowing, slow curing speed, low storage stability, etc.

Inactive Publication Date: 2018-07-24
CHANGZHOU GREEN PHOTOSENSITIVE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the technology uses UVLED light sources for coating curing, it still requires the use of mercury lamps
[0004] Pure UVLED light-cured wood coatings have been studied so far, but there are many problems, such as low storage stability, slow curing speed, poor surface drying performance (especially free radical systems), low hardness, easy yellowing, After curing, the product has a strong odor, etc., which greatly restricts the application

Method used

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Examples

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Embodiment Construction

[0059] The present invention will be described in further detail below in conjunction with specific examples, but they should not be construed as limiting the protection scope of the present invention.

[0060] 1. Preparation of UVLED light-cured wood coatings

[0061] According to the formula shown in Table 1, the light-cured wood coatings of Examples 1-8 were prepared. Unless otherwise specified, the quantities stated in each embodiment are parts by weight.

[0062] Table 1

[0063]

[0064]

[0065] In Table 1, the meanings of the trade names in each component are as follows.

[0066] TCM101: 3-hydroxymethyl-3-ethyloxetane, Changzhou Qiangli Electronic New Materials Co., Ltd.;

[0067] TCM104: 3-benzyloxymethyl-3-ethyloxetane, Changzhou Qiangli Electronic New Materials Co., Ltd.;

[0068] TCM201: 3,3′-[oxybismethylene]bis[3-ethyl]oxetane, Changzhou Qiangli Electronic New Materials Co., Ltd.;

[0069] TCM206: 1,6-di[3-ethyl-3-oxetanemethyl] adipic acid ester, Chan...

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Abstract

The invention discloses an UVLED light-curing wood coating and application thereof, the coating comprises an oxetane compound, an epoxy compound selected from the group consisting of at least one of bisphenol A type epoxy resin, bisphenol F type epoxy resin or an alicyclic epoxy compound, a (methyl) acrylate compound, a cationic and a radical photoinitiator, and optionally a sensitizer. The coating has excellent response to an UVLED light source in the wavelength range of 200 to 450 nm, and the curing speed is fast. The cured coating is excellent in hardness, wear resistance, flexibility, adhesion, alcohol resistance and yellowing resistance and the like. The coating is odorless and has strong technical and market competitiveness.

Description

technical field [0001] The invention belongs to the technical field of photocuring, and in particular relates to a UVLED photocurable composition for wood coatings, that is, a UVLED photocurable wood coating. Background technique [0002] In the early 1950s, Bayer of Germany first produced UV-curable unsaturated polyester-styrene wood coatings. Since then, UV-curable technology has been applied in the coating field. After more than half a century of development, UV-curable coatings have occupied a considerable share in the coatings market, and new formulation technologies are constantly emerging. With the improvement of people's awareness of environmental protection, the development and application of environmentally friendly light-curing coatings have received more and more attention. [0003] With people's gradual and in-depth understanding of photocuring technology, it is found that the high-pressure mercury lamps used in the photocuring coating industry have high energy...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D4/06C09D163/10C09D163/00
Inventor 杨建鑫杨金梁陈媛胡春青于培培
Owner CHANGZHOU GREEN PHOTOSENSITIVE MATERIALS CO LTD
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