Polyester resin with excellent wear resistance and chemical resistance for powder and preparation method of polyester resin
A polyester resin and chemical resistance technology, used in powder coatings, polyester coatings, coatings, etc., can solve the problem of further improvement in wear resistance, and achieve improved chemical resistance and chemical resistance. Excellent, the effect of improving adhesion
CN111647149AActive Publication Date: 2020-09-11安徽永利新材料科技有限公司
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- 安徽永利新材料科技有限公司
- Publication Date
- 2020-09-11
Smart Images
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Abstract
The invention belongs to the technical field of preparation of polyester resin, particularly relates to polyester resin with excellent wear resistance and chemical resistance for powder, and further relates to a preparation method of the polyester resin. The polyester resin provided by the invention is mainly prepared by polymerizing 3, 3-bis (chloromethyl) oxetane, neopentyl glycol diglycidyl ether, terephthalic acid, neopentyl glycol, tris (2-hydroxyethyl) isocyanurate, 1, 4-naphthalic acid and 5-nitroisophthalic acid. When the polyester resin obtained in the invention is used in a powder coating of an N, N, N', N'-tetra (2-hydroxyethyl) adipamide (HAA) curing system, a coating film with excellent wear resistance and chemical resistance can be obtained, and the resistance to 5% acetic acid, 5% sulfuric acid, 5% NaOH, methanol, ethyl acetate, acetone, xylene and acrylic acid can reach grade 5; after boiling in water for 2 hours, no change is caused; and the wear resistance reaches 3.8L/mu m or above.
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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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