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第 36 卷第 4 期 精 细 化 工 Vol.36, No.4
201 9 年 4 月 FINE CHEMICALS Apr. 2019

功能材料
Fe O @SiO @IPDI-HEA 改性水性
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有机硅聚氨酯光固化膜的性能

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张 奇，操 越，孙 芳
（北京化工大学 理学院，北京 100029）

摘要：以 Fe 3 O 4 纳米粒子为核、丙烯酸酯为壳，通过溶剂热法制备了 Fe 3 O 4 @SiO 2 @IPDI-HEA 纳米粒子。通过
IR、TEM 和 XRD 对其结构进行了表征，通过光差热扫描（photo-DSC）和 TGA 考察了该纳米粒子对水性有机
硅聚氨酯光固化体系性能的影响。结果表明：Fe 3 O 4 @SiO 2 @IPDI-HEA 粒子的加入，对体系的光聚合性能没有
明显影响，但可明显提高固化膜的耐热性和拉伸强度，当 Fe 3 O 4 @SiO 2 @IPDI-HEA 的质量分数为 1.5%时，固化
膜的初始分解温度（T 5% ）增加了 21.9 ℃，拉伸强度增加了 6.9 MPa。并且，Fe 3 O 4 @SiO 2 @IPDI-HEA 可以赋予
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光固化膜一定的电磁性能，当频率在 0~(1×10 ) Hz 内时，其介电常数均在 4 以上。
关键词：磁性纳米粒子；光聚合；水性聚氨酯；吸波材料；功能材料
中图分类号：TQ323.8; TQ317.3 文献标识码：A 文章编号：1003-5214 (2019) 04-0616-06

Properties of Fe 3O 4@SiO 2@IPDI-HEA Modified Waterborne
Polysiloxane-Polyurethane UV-Cured Films

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ZHANG Qi, CAO Yue, SUN Fang
（Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, China）

Abstract: Fe 3O 4@SiO 2@IPDI-HEA nanoparticles were prepared by solvothermal method using Fe 3O 4
nanoparticles as cores and acrylate as shells. The obtained nanoparticles were characterized by IR, TEM
and XRD. The effect of the nanoparticles on the performances of waterborne polysiloxane-polyurethane
photocuring system was studied by photo-DSC and TGA. The results showed that the addition of
Fe 3O 4@SiO 2@IPDI-HEA particles had no obvious influence the photopolymerization property of the
system, but could significantly improve the heat resistance and tensile strength of the cured film. When the
addition amount of Fe 3O 4@SiO 2@IPDI-HEA was 1.5% (mass fraction), the initial decomposition
temperature (T 5%) of cured film increased by 21.9 ℃, the tensile strength enhanced by 6.9 MPa. Moreover,
Fe 3O 4@SiO 2@IPDI-HEA could impart certain electromagnetic properties to the UV-cured film. When the
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frequency was in the range of 0 to 110 Hz, the dielectric constants of cured films were above 4.
Key words: magnetic nanoparticles; photopolymerization; waterborne polyurethane; absorbing materials;
functional materials
Foundation items: National Key Research and Development Program of China (2017YFB0307800);
National Natural Science Foundation of China (51273014); Key Research and Development Plan of Jiangsu
Province (BE2015058)

近年来，随着全球环保意识的加强，水性 UV 用水作为稀释剂，解决了传统 UV 固化材料由于需
固化材料逐渐进入人们的视野。水性 UV 固化体系 要添加挥发性强的低分子量油溶性单体来调节黏度

收稿日期：2018-07-25; 定用日期：2018-12-20; DOI: 10.13550/j.jxhg.20180550
基金项目：国家重点研发计划（2017YFB0307800）；国家自然科学基金（51273014）；江苏省重点研发计划-产业前瞻与共性关键技术
（BE2015058）
作者简介：张 奇（1992—），男，硕士生。联系人：孙 芳（1969—），女，教授，E-mail：sunfang60@yeah.net。