化工新型材料

化工新型材料 ›› 2024, Vol. 52 ›› Issue (1) : 131-136. DOI: 10.19817/j.cnki.issn1006-3536.2024.01.042

新材料与新技术

高透光纳米SiO₂/碱性有机硅低聚物复合自清洁涂层的制备

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作者信息 +

Preparation of highly transmissive nano-SiO₂/alkaline silicone oligomer composite self-cleaning coatings

Guo Haobin^1,2, Ye Xiangdong^1,2, Xi Changqing¹, Li Ji¹

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文章历史 +

Received		Published
2022-10-13		2024-01-20
Issue Date	Revised Date
2024-02-27	2022-10-13

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摘要

制备了一种具备高透光性的SiO₂/碱性有机硅低聚物超疏水复合自清洁涂层。首先以正硅酸乙酯(TEOS)为原料、全氟癸基三甲基氧硅烷(PFDT)为改性剂,通过Stober法得到SiO₂改性粒子溶液,然后以TEOS与γ-(2,3-环氧丙氧)丙基三甲氧基硅烷(KH560)为预聚物、PFDT为改性剂,在碱性条件下制备出改性的机硅低聚物溶液。将改性的SiO₂溶液与改性的碱性有机硅低聚物溶液按比例混合,最后将混合溶液喷涂于载玻片上,室温下静置6h得到透明超疏水自清洁涂层。探究了有机硅低聚物中TEOS、KH560以及氨水的量对复合涂层的影响。结果表明:当氨水、TEOS、KH560的量分别为1mL、6mL、0.4g,SiO₂改性溶液与碱性有机硅低聚物量的比值为2∶1时,涂层的接触角达到150°,透光率为91%,附着力为1级。涂层具有良好的自清洁性能,在经过300℃的高温加热后仍保持其疏水性。涂层制备工艺简单,适用于大规模工业生产。

Abstract

A SiO₂/alkaline silicone oligomer superhydrophobic composite self-cleaning coating with high light transmission was prepared.The SiO₂-modified particle solution was firstly obtained by Stober method using ethyl orthosilicate (TEOS) as raw material and perfluorodecyltrimethoxysilane (PFDT) as modifier.Then the modified silicone oligomer solution was prepared by using TEOS with γ-(2,3-epoxypropoxy) propyltrimethoxysilane (KH560) as prepolymer and PFDT as modifier under alkaline conditions.The modified SiO₂ solution was mixed with the modified silicon oligomer solution in proportion,and finally the mixed solution was sprayed on the slides and left for 6 hours at room temperature to obtain a transparent superhydrophobic self-clean coating.The effects of the amounts of TEOS,KH560 and ammonia in the silicon oligomers on the composite coating were investigated.The results showed that when the amounts of ammonia,TEOS,and KH560 were 1mL,6mL,and 0.4g,respectively,and the ratio of SiO₂-modified solution to the amount of silicone oligomer was 2∶1,the contact angle of the coating reached 150°,the light transmission rate was 91%,and the adhesion was grade 1.The coating had good self-cleaning properties and maintained its hydrophobicity even after heating at 300℃.The coating preparation process was simple and suitable for large-scale industrial production.

关键词

有机硅低聚物 / 超疏水 / 透明 / 自清洁

Key words

silicone oligomers / superhydrophobic / transparent / self-cleaning

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高透光纳米SiO₂/碱性有机硅低聚物复合自清洁涂层的制备[J]. 化工新型材料, 2024, 52(1): 131-136 DOI:10.19817/j.cnki.issn1006-3536.2024.01.042

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参考文献

原文顺序 | 出版日期 | 本文引用

[1] 王瑞洁,焦小雨,潘宇,等.透明抗静电多功能超疏水薄膜的制备[J].高等学校化学学报,2022,43(3):158-164.
[2] 叶卫民,郭堃,丘伟平.无人机防覆冰疏水涂层的研发[J].机电信息,2021(30):18-20.
[3] 尹续保,李育桥,高荣杰.铜基超疏水表面的制备及其耐蚀性研究[J].中国腐蚀与防护学报,2022,42(1):93-98.
[4] 林彦萍,王庆成,吕恕位,等.超疏水表面材料在生物医学检测领域研究进展[J].表面技术,2022,51(10):113-127.
[5] 叶向东,蔡东宝,侯俊文,等.超疏水、自清洁涂层对建筑墙体的防护[J].复合材料学报,2018,35(12):3271-3279.
[6] 杨钦,罗荘竹,谭生,等.超疏水自清洁涂层防结冰技术的研究进展[J].中国表面工程,2016,29(4):10-22.
[7] 李啸,艾玲,张景,等.透明防雾材料[J].化学进展,2018,30(6):864-871.
[8] 李玥,卢亚妹,王鹏飞,等.透明超疏水材料的制备及其应用[J].化学进展,2021,33(12):2362-2377.
[9] Barthlott W,Neinhuis C.Purity of the sacred lotus,or escape from contamination in biological surfaces[J].Planta,1997,202(1):1-8.
[10] 高雪峰,江雷.天然超疏水生物表面研究的新进展[J].物理,2006(7):559-564.
[11] 李玥,卢亚妹,王鹏飞,等.透明超疏水材料的制备及其应用[J].化学进展,2021,33(12):2362-2377.
[12] 卜庆朋,许亮,卞政,等.PS@TiO₂复合粒子及其透明超疏水涂层的制备与性能研究[J].涂料工业,2017,47(5):24-28,33.
[13] 牛彦彦,姚兰芳,沈军,等.溶胶-凝胶法制备HMDS/SiO₂复合减反膜的疏水性和光学性能的研究(英文)[J].稀有金属材料与工程,2016,45(S1):258-261.
[14] 肖俊平,冯琼华,李胜杰,等.硅烷水解/缩合机理及其低聚物在树脂中的应用[J].有机硅材料,2018,32(S1):67-73.
[15] 柳红霞,陈法雄,戴伟凯,等.新型UV固化多官能度有机硅功能低聚物的合成及应用[J].有机硅材料,2017,31(4):277-283.
[16] 吕露,王绍华,易红玲,等.杂化硅溶胶/有机硅低聚物复合透明超疏水涂层的制备及性能[J].华东理工大学学报(自然科学版),2021,47(2):147-153.
[17] 沈可可,贾瑛,吕晓猛,等.透明超疏水表面的研究进展[J].表面技术,2021,50(9):108-119.
[18] 许里杰,鲁浈浈,周建庭.透明超疏水SiO₂/硅酮胶复合涂层的制备及性能[J].精细化工,2019,36(7):1334-1339.
[19] 周煜华,杨静,刘广生,等.硅烷低聚物的合成及应用研究进展[J].江西化工,2019(6):34-35.
[20] 曹祥康,孙晓光,蔡光义,等.耐久型超疏水表面:理论模型、制备策略和评价方法[J].化学进展,2021,33(9):1525-1537.