Page 136 - 《精细化工》2020年第1期

第 37 卷第 1 期 精 细 化 工 Vol.37, No.1
202 0 年 1 月 FINE CHEMICALS Jan. 2020

皮革化学品
氧化石墨烯/梳状有机硅改性水性

聚氨酯复合材料的制备与性能

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张铭芮，马兴元 ，贺莹花，刘 帅，吴晓珍
（陕西科技大学 轻工科学与工程学院，陕西 西安 710021）

摘要：以异佛尔酮二异氰酸酯（IPDI）、聚四氢呋喃二醇（PTMG2000）、双尾型羟基硅油（DSE）、2,2-二羟甲
基丙酸（DMPA）、1,4-丁二醇（BDO）为主要原料，先采用预聚体分散法制备梳状有机硅改性水性聚氨酯
（DSE-WPU），再通过物理共混氧化石墨烯（GO）浆体制备了高强度多功能水性聚氨酯纳米复合材料
（GO-DSE-WPU），并考察了其结构与性能的关系。力学性能分析表明，GO 和 DSE 的加入可以有效地提高
GO-DSE-WPU 成膜的力学性能；接触角分析表明，随着 GO 含量的增加，GO-DSE-WPU 成膜的疏水性能呈现
先升后降的趋势，总体上疏水性有了大幅提升，利用 AFM 从内部结构做出了分析；从 SEM 断面线扫能谱图中
可明显看出，GO-DSE-WPU 成膜表面硅的富集率可提升 100%；抗紫外分析表明，即使加入质量分数 0.1%的
GO，GO-DSE-WPU 成膜的紫外吸收速率也有显著提高，紫外透过率显著降低；热性能分析表明，GO-DSE-WPU
的 3 个热降解温度均较 DSE-WPU 有所改善，热性能提升。
关键词：水性聚氨酯；硅油；复合材料；富集率；疏水性；抗紫外性；皮革化学品
中图分类号：TQ323.8 文献标识码：A 文章编号：1003-5214 (2020) 01-0122-08

Synthesis and properties of graphene oxide/comb-like silicone
modified waterborne polyurethane composites

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Zhang Mingrui, Ma Xingyuan , He Yinghua, Liu Shuai, Wu Xiaozhen
（College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an
710021, Shaanxi, China）

Abstract: A comb-like organic silicon modified waterborne polyurethane (DSE-WPU) was prepared by
prepolymer dispersion method using 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate (IPDI),
polytetrahydrofuran (PTMG2000), double-tailed hydroxy silicone oil (DSE), 2,2-dihydroxymethyl
propionic acid (DMPA) and 1,4-butanediol (BDO) as main raw materials. Then, it physically blended with
graphene oxide (GO) slurry to prepare high-strength multifunctional nanocomposite (GO-DSE-WPU). The
relationship between structure and propertiy of GO-DSE-WPU was studied. Mechanical properties analysis
showed that the addition of GO and DSE effectively improved the mechanical properties of GO-DSE-WPU
film. Video optical contact angle analysis revealed that with the increase of GO content, the hydrophobic
performance of GO-DSE-WPU film displayed a trend of first rising and then declining, and there was a big
increase in hydrophobicity overall. The reason of the improvement of the hydrophobicity from the internal
structure was explained by AFM. From SEM cross-section line sweep energy spectrum, it was found that
the enrichment rate of silicon on the film-forming surface of GO-DSE-WPU could be increased by 100%.
Anti-UV analysis showed that even if 0.1% GO was added, the UV absorption rate of GO-DSE-WPU film
was significantly increased, and the UV transmittance was significantly reduced. Thermal performance
measurement demonstrated that the three thermal degradation temperatures of GO-DSE-WPU were

收稿日期：2019-06-17; 定用日期：2019-07-12; DOI: 10.13550/j.jxhg.20190547
基金项目：国家 863 计划项目（2015AA033903）
作者简介：张铭芮（1994—），女，硕士生。联系人：马兴元（1972—），男，教授，E-mail：maleather@163.com。