硫醇改性环氧/丙烯酸树脂构建自清洁耐蚀涂层研究
Research of Thiol-modified Epoxy/acrylic Resin for Construct Self-cleaning Corrosion-resistant Coatings
杨志 1杨槟桦 1肖吉源 1张韵波 1许正洪 1向薪宇 1吴桐 1卢建红2
作者信息
- 1. 四川轻化工大学材料科学与工程学院,四川 自贡 643000
- 2. 四川轻化工大学材料科学与工程学院,四川 自贡 643000;材料腐蚀与防护四川省重点实验室,四川 自贡 643000
- 折叠
摘要
采用正十八烷基硫醇对环氧/丙烯酸树脂共混物进行改性,对改性漆膜进行红外光谱、吸水率、形貌、接触角、耐蚀性和自清洁分析,结果表明:傅里叶变换红外光谱测试反映硫醇与环氧/丙烯酸共混树脂产生了交联,并形成致密和准结晶的特定排列取向;正十八烷基硫醇改性环氧/丙烯酸树脂,在m(环氧树脂)∶m(丙烯酸树脂)=4∶6时,吸水率为0.36％,其二维形貌表征发现环氧树脂与丙烯酸树脂为有序密集点状组织,三维轮廓呈现出50 μm山丘状结构及10 μm簇状乳突结构,其接触角为140.98°,此时耐蚀性能最好,腐蚀电流密度为5.105 4×10-10 A/cm2,自清洁能力也最强.
Abstract
The epoxy/acrylic resin blends were modified with n-octadecyl mercaptan,infrared spectroscopy,water absorption,morphology,contact angle,corrosion resistance and self-cleaning analysis of the modified paint films demonstrated that:fourier transform infrared spectroscopies reflect the cross-linking of thiols with epoxy/acrylic blends and the formation of a dense and quasi-crystalline specific arrangement orientation;When n-octadecyl mercaptan modified epoxy/acrylic resin at weight ratio of epoxy and acrylic resin=4∶6,the water absorption of coating is 0.36％,and its two-dimensional morphological characterization reveals that the epoxy/acrylic resin is ordered and dense dot-like organization,and the three-dimensional profile shows a 50 μm hill-like structure and a 10 μm clustered papilla structure with a contact angle of 140.98°,at which time the corrosion resistance of coating is the best,its corrosion current density is 5.105 4×10-10 A/cm2,and the self-cleaning ability is the strongest.
关键词
自清洁性/疏水性/耐腐蚀性/气垫效应/硫醇Key words
self-cleaning/hydrophobicity/corrosion resistance/air cushion effect/thiol引用本文复制引用
基金项目
大学生创新创业训练计划项目(S202010622041)
材料腐蚀与防护四川省重点实验室基金项目(2021CL02)
天然产物化学与小分子催化四川省高校重点实验室项目(TRCWYXFZCH 2022A1)
高校人才引进项目(2021RC01)
出版年
2024
NETL
NSTL
万方数据