Air-seasoning alkyd resin prepared from discarded edible oil and application of air-seasoning alkyd resin

Abstract

The invention discloses air-seasoning alkyd resin prepared from discarded edible oil. The alkyd resin comprises the following raw materials of 10-20 parts of discarded edible oil, 10-20 parts of dry vegetable oil, 6-12 parts of polyhydric alcohols, 0.01-0.02 part of catalyst, 10-15 parts of binary acid or anhydride, 2-8 parts of monoacid and 45-55 parts of diluent. Compared with the prior art, the air-seasoning alkyd resin has the advantages that the discarded edible oil with low price is adopted to replace part of dry vegetable oil or vegetable oil acids used in the traditional formula, the cost of per ton of the prepared air-seasoning alkyd resin can be reduced by about 800yuan, and the property of the air-seasoning alkyd resin is not lower than that of an existing product.

Description

technical field [0001] The invention relates to an alkyd resin, in particular to a low-cost air-drying alkyd resin prepared by using waste cooking oil and its application. Background technique [0002] Alkyd resin is a polyester resin modified with fatty acid, in which the fatty acid content is 30-75wt%, and it is one of the important basic resins in the coating industry. According to the drying method, alkyd resin can be divided into two types: air-drying type and oven-drying type. The air-drying alkyd resin mainly forms a solid paint film through the oxidative cross-linking reaction of the unsaturated bonds in the fatty acid under the action of the drier. The traditional air-drying alkyd resin mainly uses linseed oil, castor oil, soybean oil, catalpa Oil, tung oil and other dry vegetable oils or vegetable oleic acid to introduce unsaturated bonds. Although the air-drying alkyd resin must rely on unsaturated bonds to solidify into a film, the more unsaturated bonds, the b...

AI Technical Summary

Problems solved by technology

However, there is currently no air-drying alkyd...