端乙烯基硅氧烷对水性丙烯酸树脂的改性

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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

Published: 05 July 2019

CLC number:

TQ633

About author:: Zheng Zhang, in September 2013 to June 2017,he studied in materials professional research direction of the welding of metal materials,Shandong Construction University, and won the international welding engineer certificate, in September 2017, in Jiangsu University of Science and Technology of Materials Science and Engineering College study for a master’s graduate student, now the main research is anticorrosive coatings, and lithium ion battery cathode material.Yanmin Gao, professor of Jiangsu University of Scie-nce and Technology, was transferred to the Material Science Department of Jiangsu University of Science and Technology in 2004.He is currently the editorial board member of the Natural Science Journal of Jiangsu University of Science and Technology, the deputy director of the development planning department, and the director of the Institute of Corrosion and Protection, Chinese Academy of Sciences. His team’s main research inte-rests including:coatings,adhesive,ink,composite materials,metal corrosion and protection and new energy batteries.Presided over or participated in a number of scientific research projects and talent programs.Including the corrosion inhibitor mechanism of Natural Science Foundation of Jiangsu Province in coatings;mechanism of self-mineralization of iron ions in carbon dioxide corrosion products for substrate protection;the relationship between the effect of small molecule biomineralization on the surface of iron and corrosion resis-tance.China shipbuilding heavy industry’s LNG carrier ultra-low temperature material insulation material and construction technology, as well as the design and industrialization research of rust-coating directly on rust-coating of Jiangsu province’s industry-university-research project.With invention patents and more than 300 journal papers, has cultivated more than 100 excellent master.

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	ZHANG Zheng
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Cite this article:

ZHANG Zheng,LIU Biao,GAO Yanmin. Modification of Aqueous Acrylic Resin by End-vinyl Siloxane[J]. Materials Reports, 2019, 33(z1): 519-522.

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http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2019/V33/Iz1/519