利用工业级对苯二甲酸合成醇酸树脂漆

Synthesis of alkyd resin paint from CTA

使用工业级对苯二甲酸(CTA)代替现在大量使用的苯酐等二元酸,成功地合成了CTA醇酸树脂。所得树脂漆料各项性能均达到使用苯酐合成的同类产品的国家标准。有些性能如光泽、干率、硬度等甚至优于用苯酐生产的同类产品。在漆厂现有反应设备和工艺条件无需做大的改变条件下,使用CTA合成CTA醇酸树脂,可降低原料成本15%～20%。

In the synthesis of process of alkyd resin,the CTA（industrial grade terephthalic acid） was used to replace the current extensive used phthalic anhydride and other dicarboxylic acids.The CTA alkyd resin have been successfully synthesized.Various performance of the obtained resin paint can reach the national standard of similar products synthesis by phthalic anhydride.Some properties such as gloss,dry rate,hardness even exceed the similar products synthesis by phthalic anhydride.Under the condition of without doing improvement on the existing reaction equipment and process conditions of the paint factory,synthesis of CTA alkyd resin paint by CTA can reduced the raw material cost by 15%~20%.