端乙烯基硅氧烷对水性丙烯酸树脂的改性

材料导报

2019, Vol. 33

Issue (z1): 519-522

高分子与聚合物基复合材料

端乙烯基硅氧烷对水性丙烯酸树脂的改性

张政, 刘标, 高延敏

江苏科技大学材料科学与工程学院,镇江 212003

Modification of Aqueous Acrylic Resin by End-vinyl Siloxane

ZHANG Zheng, LIU Biao, GAO Yanmin

School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003

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摘要溶剂型传统涂料导致众多的环境污染问题,因此需要研究出新的低VOC排量的涂料。水性丙烯酸树脂是比较好的环保涂料,由于丙烯酸树脂性能存在缺陷,在其水性化的同时需要改性。有机硅具有很好的高低温性能、较好的疏水性以及可以交联等特点。本工作将含乙烯基的硅氧烷KH570引入丙烯酸主链得到改性树脂,改性树脂吸水率明显降低,接触角提高了13.51°,粒径增大到154.12 nm,最高分解温度提高到424.25 ℃,电化学分析表明,KH570具有更好的耐腐蚀性,其加入量为5%时具有较低的凝胶率。

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关键词: 水性丙烯酸树脂端乙烯基硅氧烷耐腐蚀

Abstract: Traditional solvent-based coating cause many environmental pollution problems, so it is necessary to develop new coatings with low VOC emission. Water-based acrylic resin is better environmental protection coating, because of the defects existing in acrylic resin, the preparation of waterborne need modification at the same time. Organic silicon has good performance of high and low temperature, good hydrophobicity and crosslinking, so water-based acrylic resin modified by organic silicon can make them get more excellent performance. In this work, KH570 containing vinyl siloxane was introduced into the main chain of acrylic acid to obtain modified resin, bibulous rate of the modified resin was reduced significantly, contact angle increased by 13.51°, particle size increased to 154.12 nm, maximum decomposition temperature increased to 424.25 ℃, respectively. Electrochemical analysis showed that KH570 has better corrosion resistance, and it has a lower gel rate when its content is 5%.

Key words: waterborne acrylic resin end-vinyl siloxane corrosion resistance

出版日期: 2019-05-25 发布日期: 2019-07-05

ZTFLH:

TQ633

作者简介: 张政,2013年9月到2017年6月在山东建筑大学材料专业研究金属材料的焊接,并获得了国际焊接工程师的证书,2017年9月至今,在江苏科技大学材料科学与工程学院攻读硕士研究生,现在主要研究防腐涂料以及锂离子电池正极材料等。高延敏,江苏科技大学教授,2004年调入江苏科技大学材料科学系,现为材料学院教授,硕士研究生导师。目前担任江苏科技大学自然科学学报编委,发展规划处副处长,中国科学院腐蚀与防护研究所所长。其团队主要研究方向包括:涂料、粘合剂、油墨、复合材料、金属腐蚀与防护以及新能源电池等。主持或参与科研项目及人才计划项目若干。包括江苏省自然科学基金的缓蚀剂在涂料的缓蚀剂机理;诱导铁离子在二氧化碳腐蚀产物自矿化对基材保护机理;小分子生物矿化在铁表面的调节作用与耐腐蚀性的相关性。中船重工的LNG船超低温材料保温材料和施工工艺以及江苏省产学研项目的直接在锈层上涂装涂料设计与产业化研究等项目。已发表发明专利及期刊论文三百余篇,已培养出优秀硕士百余名。1571539864@qq.com

引用本文:

张政, 刘标, 高延敏. 端乙烯基硅氧烷对水性丙烯酸树脂的改性[J]. 材料导报, 2019, 33(z1): 519-522.
ZHANG Zheng, LIU Biao, GAO Yanmin. Modification of Aqueous Acrylic Resin by End-vinyl Siloxane. Materials Reports, 2019, 33(z1): 519-522.

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