Page 65 - 精细化工2019年第12期

第 36 卷第 12 期 精 细 化 工 Vol.36, No.12
2019 年 12 月 FINE CHEMICALS Dec. 2019

功能材料
UV 固化型载银石墨烯/WPUA

抗菌乳液的制备与表征

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盛锡慧焘子，杨建军 ，吴庆云，吴明元，张建安
（安徽大学 化学化工学院，安徽省绿色高分子材料重点实验室，安徽 合肥 230601）

摘要：通过原位聚合法，在吸附银离子的异氰酸酯功能化石墨烯表面引入双键，再与制得的聚氨酯-丙烯酸酯进
行掺杂，紫外固化后制备出载银石墨烯/聚氨酯-丙烯酸酯（IGAH/WPUA）乳液。采用 FTIR、XPS、XRD、TEM、
SEM、抗菌性能、机械性能和电化学等测试手段对复合物的结构和性能进行表征，探究了 IGAH 质量分数和光
照时间对复合材料各项性能的影响。结果表明，当载银石墨烯（IGAH）质量分数（占 WPUA 质量，下同）为
2%时各项性能趋于稳定，水洗 144 h 后对大肠杆菌和金黄色葡萄球菌的抗菌率仍能分别达到 99.9%和 99.5%；
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体积电阻率为 1.16×10 Ω·cm，表面电阻为3.75×10 Ω，复合材料具有优良的抗静电性；T 10% 从纯WPUA 的296.51 ℃
升高到 308.50 ℃。
关键词：石墨烯；聚氨酯；纳米银；UV 固化；功能材料
中图分类号：TQ330.53 文献标识码：A 文章编号：1003-5214 (2019) 12-2393-07

Preparation and Characterization of UV Curing Silver-loaded
Graphene/Polyurethane-Acrylate Antibacterial Emulsions

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SHENG Xi-hui-tao-zi, YANG Jian-jun , WU Qing-yun, WU Ming-yuan, ZHANG Jian-an
（Key Laboratory of Environment-friendly Polymer Materials of Anhui Province,School of Chemistry and Chemical
Engineering, Anhui University, Hefei 230601, Anhui, China）

Abstract: Anisocyanate functionalized graphene with double bondsadsorbing silver ions were prepared by
in-situ polymerization, which was doped with the prepared polyurethane-acrylate emulsion to obtain a
series of silver-loaded graphene/polyurethane-acrylate (IGAH/WPUA) emulsions by ultraviolet curing. The
structure and properties of the composites were characterized by FTIR, XPS, XRD, TEM, SEM,
antibacterial properties, mechanical properties and electrical properties. Moreover, the effects of IGAH
mass fraction and illumination time on the properties of the composites were investigated. The results
showed that the performances of the composite tended to be stable when the IGAH mass fraction was 2%
(based on the mass of WPUA, the same below). After water washing 144 h, the antibacterial rates against
Escherichia coli and Staphylococcusaureus still reached 99.9% and 99.5%. The volume resistivity of the
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composite was 1.16×10 Ω·cm, while the surface resistance was 3.75×10 Ω, indicating that the composite
had excellent antistatic property. T 10% increased from 296.51 ℃ of pure WPUA to 308.50 ℃.
Key words: graphene; polyurethane; nanosilver; UV curing; functional materials

水性聚氨酯（WPU）以水为溶剂，具有绿色环 用装置和个人护理方面的产品若不能抑菌，将会对
保、溶剂价格低廉、运输安全、耐候性良好等特点， 身体健康造成伤害。因此，如何将抗菌剂引入 WPU
被用于制造涂料、油墨、皮革、纺织、建筑、胶粘 中，并产生长效的抗菌性成为亟需解决的问题。
剂、医用装置、个人护理等产品 [1-3] ，但是应用在医 目前，研究人员常用金属离子抗菌剂和有机合

收稿日期：2019-03-28; 定用日期：2019-06-19; DOI: 10.13550/j.jxhg.20190251
基金项目：安徽省高等学校自然科学研究重点项目（KJ2016A792）；安徽省 2017 年度科技攻关项目（1704a0902018）
作者简介：盛锡慧焘子(1994—)，女，硕士生。联系人：杨建军（1960—），男，教授，博士生导师，E-mail：andayjj@163.com。