A kind of pia waste material modified alkyd resin and preparation method thereof

Abstract

The invention discloses a PIA waste modified alkyd resin and a preparation method thereof. The PIA waste modified alkyd resin is prepared from the following raw materials in parts by weight: 10-20 parts of acrylic acid, 7-15 parts of methacrylic acid, 20-45 parts of methyl methacrylate, 3-10 parts of styrene, 35-40 parts of castor oil, 20-25 parts of trimethylolpropane, 2-5 parts of 2,2,4-trimethyl-1,3-pentanediol, 15-25 parts of 1,4-cyclohexanedicarboxylic acid, 6-8 parts of PIA waste, 6-10 parts of trimellitic anhydride, 1-5 parts of triethylamine, 3-10 parts of ethylene glycol monobutyl ether, 10-35 parts of propanediol monobutyl ether, 2-8 parts of lauric acid, 0.01-0.05 part of catalytic promoter, 1-2 parts of benzoyl peroxide and 20-50 parts of water. The PIA waste modified alkyd resin is high in adhesion and hardness and good in water resistance and corrosion resistance; besides, as the PIA waste is utilized, the cost is saved.

Description

technical field [0001] The invention relates to the technical field of alkyd resins, in particular to a PIA waste modified alkyd resin and a preparation method thereof. Background technique [0002] Alkyd resin is the most widely used synthetic resin in the paint industry. It has the advantages of low price, simple construction, easy access to raw materials, low acid value, good solubility of various organic solvents, and good performance on pigments and fillers. Excellent wetting and dispersibility, and after curing, it is glossy and tough, has strong adhesion, and has good wear resistance, weather resistance and insulation, etc. It has been used in many fields. [0003] Isophthalic acid (1,3-phthalic acid, English abbreviation IPA, high-purity product called PIA) is a white crystalline solid with strong heat resistance, water resistance and chemical resistance, easy to deflagrate, It can be sublimated and is mainly used in the production of unsaturated polyester resin (UP...

AI Technical Summary

Problems solved by technology

Although water-based alkyd resin has many excellent properties, it also has disadvantages. Its molecular structure contains more ester groups, resulting in unsatisfactory hardness of the produced coating film, and poor weather resistance, corrosion resistance and water resistance. , in order to overcome the shortcomings of alkyd resin and expand its application range, it needs to be modified