Method for preparing multifunctional acrylic matting resin

A technology of matting resin and acrylic acid, which is applied in coatings, powder coatings, etc., can solve the problems of poor mechanical strength, poor surface scratch resistance, high cost, etc., achieve homopolymerization process improvement, increase mechanical strength and surface abrasion resistance performance, enhance the effect of inherent advantages
CN101735543AInactive Publication Date: 2010-06-16宁波维楷化学有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
宁波维楷化学有限公司
Publication Date
2010-06-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing a multifunctional acrylic matting resin. The method comprises the following steps: using xylol as a solvent, using three functional monomers, namely glycidyl methacrylate and butyl acrylate, styrene and methyl methacrylate, to synthesize low-molecular-weight matting resin homopolymer under the action of azodiisobutyronitrile and benzoyl peroxide initiator and regulation of an alpha-vinyltoluene formed dimer molecular chain, and mixing the low-molecular-weight matting resin homopolymer and hydroxyalkylamide or triglycidyl isocyanurate to finally obtain the multifunctional matting resin. The method has the advantages that: the inherent advantages of the matting resin is improved through homopolymerization of the plurality of functional monomers and the glycidyl acrylate and optimized improvement on the homopolymerization process, and simultaneously improves the compatibility between the matting resin and powder base stock and reduces the using amount of a flatting agent; and the mechanical strength and the surface scuff resistance of the matting resin are improved through combined actions of mixing other curing agents.
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Description

technical field

[0001] The invention relates to a weather-resistant powder coating matting curing agent, mainly a preparation method of a multifunctional acrylic matting resin. Background technique

[0002] Weather-resistant powder coating matting agents and most of them use physical matting agents, such as matting powder, wax powder, stearate, etc. Most of them have poor matting effects, and it is difficult to obtain low-light weather-resistant powder coatings. British Casamid2228 is a matting curing agent of a catalyst mixture of polybasic acid and amine. It has poor heat resistance, tends to yellow, and affects the storage stability of the powder. Domestically, the matting resin of glycidyl acrylate copolymer has strong matting properties, but there are also problems such as poor compatibility, poor mechanical strength, poor surface scratch resistance, easy to produce fine patterns when matting, and excessive dosage will cause costs. too high issue. Contents of the inv...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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