Page 83 - 《精细化工》2022年第3期

第 39 卷第 3 期 精 细 化 工 Vol.39, No.3
2022 年 3 月 FINE CHEMICALS Mar. 2022

功能材料
UV 固化蓖麻油基聚氨酯丙烯酸酯/

SiO 杂化材料的制备与性能
2

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麦 颖，王 锋 ，胡祝平，于英豪
（华南理工大学 化学与化工学院，广东 广州 510630）

摘要：以异佛尔酮二异氰酸酯（IPDI）、蓖麻油（CO）和丙烯酸羟乙酯（HEA）为原料合成了蓖麻油基聚氨酯
丙烯酸酯（COPUA）；以正硅酸乙酯（TEOS）和 3-(异丁烯酰氧)丙基三甲氧基硅烷（MEMO）为前驱物通过溶
胶-凝胶法制备了改性硅溶胶，将其作为无机相与 COPUA 有机相复合得到了 UV 固化 COPUA/SiO 2 杂化材料。
考察了 MEMO 与 TEOS 的物质的量比对改性硅溶胶性能的影响，当 MEMO 与 TEOS 物质的量比为 1∶1 时得
到性能最佳改性硅溶胶 MT-1。在此基础上研究了 COPUA/SiO 2 杂化材料中 MT-1 的添加量对固化涂层性能的影
响。用 FTIR、TEM、SEM、TGA、AFM 对 COPUA/SiO 2 杂化材料和涂层进行了结构表征，测试杂化涂层的力
学性能和表面性能。结果表明，当 MT-1 添加量为 COPUA 质量的 15%时，制备的涂层表面光滑平整，纳米 SiO 2
在 COPUA 中分散效果良好，其透光率达到 100.20%，硬度为 5H，附着力 0 级，柔韧性 1 mm；拉伸强度达到
13.52 MPa，断裂伸长率为 7.49%。
关键词：蓖麻油基聚氨酯丙烯酸酯；改性硅溶胶；杂化材料；力学性能；UV 固化；功能材料
中图分类号：TQ630.7 文献标识码：A 文章编号：1003-5214 (2022) 03-0505-08

Preparation and properties of UV-cured castor oil-based
polyurethane acrylate/SiO 2 hybrid materials

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MAI Ying, WANG Feng , HU Zhuping, YU Yinghao
（School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510630, Guangdong,
China）

Abstract: Castor oil-based polyurethane acrylate (COPUA) was synthesized from isophorone diisocyanate
(IPDI), castor oil (CO) and hydroxyethyl acrylate (HEA). Modified silica sol was prepared by sol-gel
method using tetraethyl orthosilicate (TEOS) and 3-methacryloxypropyltrimethoxysilane (MEMO) as raw
materials and then combined with COPUA to prepare COPUA/SiO 2 hybrid materials. The effect of molar
ratio of MEMO to TEOS on the properties of modified silica sol was investigated. The optimal molar ratio
of MEMO to TEOS was 1∶1 (MT-1). The effect of addition amount of MT-1 on the properties of
COPUA/SiO 2 hybrid material was studied. The COPUA/SiO 2 hybrid materials and coatings were
characterized by FTIR, TEM, SEM, TGA and AFM. The mechanical and surface properties of hybrid
coatings were tested. The result showed that when the addition amount of MT-1 was 15% of the mass of
COPUA, the prepared hybrid coating had a smooth and flat surface, indicating that SiO 2 particles were
evenly dispersed in COPUA. The light transmittance of the prepared coating reached 100.20%, the hardness
was 5H, the adhesion was grade 0 and the flexibility was 1 mm, the tensile strength was up to 13.52 MPa
and the elongation of section was 7.49%.
Key words: castor oil-based polyurethane acrylate; modified silica sols; hybrid materials; mechanical
properties; UV-curing; functional materials

收稿日期：2021-09-23; 定用日期：2021-11-18; DOI: 10.13550/j.jxhg.20210961
基金项目：广东省自然科学基金（2021A1515010140）；广东省绿色化学产品技术重点实验室开放基金资助项目（GC202122）
作者简介：麦 颖（1996—），女，硕士生，E-mail：1550114473@qq.com。联系人：王 锋（1978—），男，助理研究员，E-mail：
fengwang@scut.edu.cn。