Page 144 - 《精细化工)》2023年第10期
P. 144
第 40 卷第 10 期 精 细 化 工 Vol.40, No.10
2 023 年 10 月 FINE CHEMICALS Oct. 2023
功能材料
纳米杂化耐磨超疏水环氧树脂涂层的构筑及性能
许志坚 1,2 ,安秋凤 1,2* ,杨博文 1,2 ,焦岚姣 1,2
(1. 陕西科技大学 化学与化工学院,陕西 西安 710021;2. 陕西省轻化工助剂重点实验室,陕西 西安
710021)
摘要:采用十八烷基胺(C 18 -NH 2 )对由正硅酸乙酯和 γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)合成的
纳米粒子进行改性,制得了长链烷基改性纳米粒子(C 18 -NH 2 /570@SiO 2 )。采用层层组装法将 C 18 -NH 2 /570@SiO 2
引入有机硅改性环氧树脂,制备了超疏水环氧树脂涂层 C 18 -NH 2 /570@SiO 2 /DE51。采用 FTIR、XRD、XPS、TEM、
AFM 对纳米粒子的结构以及涂层的形貌进行了表征。对 C 18 -NH 2 /570@SiO 2 /DE51 的接触角、透光率、自清洁、
耐酸碱和耐摩擦性能进行了测试。结果表明, C 18 -NH 2 /570@SiO 2 成功引入到聚合物链段中, 且
C 18 -NH 2 /570@SiO 2 /DE51 的表面粗糙度明显提高。当喷涂质量分数为 0.8%的 C 18 -NH 2 /570@SiO 2 丙酮分散液时,
制备的 C 18 -NH 2 /570@SiO 2 /DE51-0.8 接触角可达到 150.6°±0.6°,滚动角为 7.8°±0.4°,透光率为 91.98%,具有良
好的自清洁、耐酸碱和耐摩擦性能,摩擦次数可达到 1500 次以上。
关键词:纳米粒子;十八烷基胺;改性环氧树脂;超疏水性;自清洁;耐磨擦;功能材料
中图分类号:TB34 文献标识码:A
文章编号:1003-5214 (2023) 10-2222-09 开放科学 (资源服务) 标识码 (OSID):
Construction and properties of nano-hybrid wear-resistant
superhydrophobic epoxy resin coatings
1,2
1,2
1,2
XU Zhijian , AN Qiufeng 1,2* , YANG Bowen , JIAO Lanjiao
(1. College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an 710021,
Shaanxi, China; 2. Shaanxi Key Laboratory of Light Chemical Auxiliaries, Xi'an 710021, Shaanxi, China)
Abstract: Long-chain alkyl-modified nanoparticles (octadecylamine C 18-NH 2/570@SiO 2) were synthesized
by C 18-NH 2 modification of the nanoparticles obtained from ethyl orthosilicate (TEOS) and
γ-methacryloyloxypropyltrimethoxysilane (KH-570), and then introduced into silicone-modified epoxy
resin via layer-by-layer assembly to obtain a superhydrophobic epoxy resin coating C 18 -NH 2 /570@SiO 2 /DE51
with excellent friction resistance. The structure of nanoparticles and the morphology of coatings were
characterized by FTIR, XRD, XPS, TEM, AFM. The coating C 18-NH 2/570@SiO 2/DE51 was further tested
for analyses on contact angle, light transmittance, self-cleaning performance, acid and alkaline resistance as
well as friction resistance. The results showed that C 18-NH 2/570@SiO 2 were successfully introduced into
polymer chain with the surface roughness of the coating C 18-NH 2/570@SiO 2/DE51 significantly improved.
When the mass fraction of C 18-NH 2/570@SiO 2 acetone dispersion added was 0.8%, the contact angle and
rolling angle of the coating C 18-NH 2/570@SiO 2/DE51-0.8 obtained could reach 150.6°±0.6° and 7.8°±0.4°,
and the light transmittance was 91.98%. Meanwhile, the coating C 18-NH 2/570@SiO 2/DE51-0.8 exhibited
good self-cleaning performance, acid and alkali resistance and friction resistance, with friction number over
1500 times.
Key words: nanoparticles; octadecylamine; modified epoxy resin; superhydrophobicity; self-cleaning;
friction resistance; functional materials
收稿日期:2022-12-04; 定用日期:2023-03-28; DOI: 10.13550/j.jxhg.20221109
基金项目:陕西省重点研发计划项目(2020ZDLGY13-11)
作者简介:许志坚(1999—),男,硕士生,E-mail:2993247218@qq.com。联系人:安秋凤(1965—),女,教授,E-mail:
1114593350@qq.com。