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第 4 期 张 奇，等: Fe 3 O 4 @SiO 2 @IPDI-HEA 改性水性有机硅聚氨酯光固化膜的性能 ·621·

IPDI-HEA 的质量分数为 1.5%时，固化膜在 0~1× waterborne coatings[J]. China Coatings (中国涂料), 2017, 32(7): 1-6.
7
10 Hz 内的介 电常 数均在 4 以上 。因 此， [2] Cui Fuhong (崔芙红). Advances in the study of waterborne uv-
curable coatings[J]. Guangdong Chemical (广东化工), 2013, 40(10):
Fe 3 O 4 @SiO 2 @IPDI-HEA 有望作为填料加入光固化
99-100.
材料中制备无线电波吸收材料，并可通过改变其含 [3] Yu F, Xu X, Lin N, et al. Structural engineering of waterborne
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图 7 不同 Fe 3 O 4 @SiO 2 @IPDI-HEA 质量分数固化膜的介 acrylate/silica nanocomposites for thermochromic coatings[J]. Rsc
Advances, 2015, 5(33): 25730-25737.
电常数（a）和介电损耗（b）
Fig. 7 Dielectric constants (a) and dielectric losses (b) of [11] Zhang R, Huang X, Zhong B, et al. Enhanced microwave absorption
cured films with different Fe 3 O 4 @SiO 2 @IPDI-HEA properties of ferroferric oxide/graphene composites with a controllable
mass fraction microstructure[J]. Rsc Advances, 2016, 6(21): 16952-16962.
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3 结论 curable hyperbranched waterborne polyurethane/Fe 3O 4 nanocomposite
films with excellent magnetic properties[J]. Rsc Advances, 2014,
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（1）设计合成了 Fe 3 O 4 @SiO 2 @IPDI-HEA 磁性
[13] Chen S, Zhang S, Tao J, et al. Synthesis and characterization of novel
纳米粒子，该纳米粒子的加入提高了固化膜的耐热 covalently linked waterborne polyurethane/Fe 3O 4 nanocomposite
性和拉伸强度，添加 Fe 3 O 4 @SiO 2 @IPDI-HEA 的质 films with superior magnetic, conductive properties and high latex
量分数为 1.5%时，固化膜的 T 5% 增加了 21.9 ℃，拉 storage stability[J]. Chemical Engineering Journal, 2016, 286:
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伸强度增加了 6.9 MPa。 [14] Tian Ailin (田爱林). Synthesis of functional magnetic nanoparticles
（2）该纳米粒子的加入对杂化体系的光聚合性 and application of chiral separation [D]. Beijing: Beijing University
能影响不大，各体系双键转化率均在 85%以上。 of Chemical Technology (北京化工大学), 2013.
[15] Xiong Jun (熊军), Sun Fang (孙芳), Du Hongguang (杜洪光).
（3）该纳米粒子可以提高光固化膜的介电常数
Dibutylamine titration for the determination of isocyanate in
和介电损耗，有望用于光固化吸波材料。 polyurethane[J]. Analysis Laboratory (分析试验室), 2007, 26(8):
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参考文献： [16] Habib E, Zhu X X. Photo-calorimetry method optimization for the
[1] Zhang Jing (张静), Guo Yongliang (郭永亮), Guo Junhong (郭军红), study of light-initiated radical polymerization of dental resins[J].
et al. Progress in the study of environmentally friendly uv-curable Polymer, 2018, 135: 178-184.