FEVE树脂改性聚酯-丙烯酸粉末涂料的制备与性能研究  

Study on FEVE Modified Polyester-Acrylic Powder Coatings

作　　者：吴严明 黄焯轩 蔡劲树 华江南 Wu Yanming;Huang Zhuoxuan;Cai Jinshu;Hua Jiangnan(Wesdon River Powder Paint Scientific Research Co.,Ltd.,foshan,Guangdong 526238,China;Guangdong Huajiang Powder Technology Co.,Ltd.,Zhaoqing,Guangdong 526238,China)

机构地区：[1]广东西敦千江粉漆科学研究有限公司,广东佛山528225 [2]广东华江粉末科技有限公司,广东肇庆526238

出　　处：《涂料工业》2021年第6期20-27,共8页Paint & Coatings Industry

摘　　要：主要介绍了FEVE树脂改性聚酯-丙烯酸粉末涂料的配方设计和制备工艺。首先对被改性的丙烯酸树脂和聚酯树脂的品种进行筛选,再对制备工艺进行筛选,最后对比了FEVE树脂改性不同品种耐候树脂的性能。结果表明:选择环氧当量500〜550 g/mol的缩水甘油基丙烯酸树脂与酸值32~38 mgKOH/g的聚酯树脂按质量比1:1混合挤出制备粉末涂料后,再与FEVE纯氟碳粉末按质量比(2〜1):1外混合制备的FEVE树脂改性聚酯-丙烯酸粉末涂料,相对于氟碳改性其他品种树脂的粉末涂料具有平整的涂膜外观,优异的机械性能和耐候性能。This article mainly introduced the formulation design and preparation process of FEVE modified polyester-acrylic powder coating.Firstly,the acrylic resin and polyester resin to be modified were screened,followed by selection of preparation process,then the performance of weather-resistant resins modified with FEVE were compared.The results showed that when the FEVE resin was dry blended with the powder coating at a mass ratio of 2:1-1:1,which was prepared through extrusion of glycidyl pure acrylic resin(epoxide equivalent 500-550 g/mol)and polyester resin(acid value 32-38 mgKOH/g)at a mass ratio 1:1,the powder product presented excellent performance in terms of mechanical properties and weather resistance,compared with other FEVE modified powder coatings.

关 键 词：缩水甘油基丙烯酸树脂 FEVE树脂 改性聚酯-丙烯酸 外混合工艺 粉末涂料 

分 类 号：TQ637.82[化学工程—精细化工]