文献类型：期刊文献

中文题名：生物基聚苯并(口恶)嗪/纤维素纳米晶超疏水防腐蚀涂层的制备及性能

英文题名：Preparation and anticorrosion properties of bio-based polybenzoxazine/cellulose nanocrystals superhydrophobic coating

作者：曹玉柱[1];陆馨[1];王立通[1];袁满林[1];辛忠[1,2]

机构：[1]华东理工大学化工学院,上海市多相结构材料化学工程重点实验室,上海200237;[2]华东理工大学化学工程联合国家重点实验室,上海200237

年份：2021

卷号：72

期号：11

起止页码：5717

中文期刊名：化工学报

外文期刊名：CIESC Journal

收录：CSTPCD;;EI(收录号：20214611161932);Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：国家自然科学基金项目(21776080);上海市教育委员会科研创新计划项目(2019-01-07-00-02-E00061)。

语种：中文

中文关键词：聚苯并(口恶)嗪;纳米粒子;超疏水涂层;腐蚀;复合材料;

外文关键词：polybenzoxazine;nanoparticles;superhydrophobic coating;corrosion;composites;

摘要：以腰果酚、十八胺和多聚甲醛为原料合成出生物基苯并(口恶)嗪单体,以单宁酸为固化剂,采用差示扫描量热分析技术和红外光谱考察了苯并(口恶)嗪单体的热固化行为,结果表明单宁酸可以有效降低苯并(口恶)嗪的开环固化温度。在钢片表面首先制备聚苯并(口恶)嗪涂层作为底漆,再通过在涂层中掺杂氨基修饰纤维素纳米晶制备面漆,构建出静态水接触角为161.1°±2.9°的生物基超疏水防腐蚀涂层(PBTC)。该超疏水涂层表现出良好的耐高低温性能和耐刮擦性。电化学测试结果表明PBTC涂层在NaCl水溶液中浸泡30天后仍然具有良好的防腐蚀性能。
A bio-based benzoxazine monomer was synthesized by using cardanol,stearylamine and paraformaldehyde as raw materials.Differential scanning calorimetry and infrared spectroscopy were employed to investigate the thermal curing behavior of benzoxazine with tannic acid acting as the curing agent.The results show that tannic acid can effectively reduce the ring-opening curing temperature of benzoxazine.The polybenzoxazine primer was prepared on the surface of carbon steel sheet,and then the topcoat was obtained by adding aminomodified cellulose nanocrystalline.The bio-based superhydrophobic coating(PBTC)was constructed with static water contact angle of 161.1°±2.9°.The superhydrophobic coating exhibits good temperature resistance and scratch resistance.Moreover,the electrochemical measurement results indicated that the PBTC coating could still exhibit excellent corrosion resistance after immersion in NaCl aqueous solution for 30 days.