Page 85 - 《精细化工》2020年第9期

第 37 卷第 9 期 精 细 化 工 Vol.37, No.9
202 0 年 9 月 FINE CHEMICALS Sept. 2020

功能材料
UV 固化 PHMG 基抗菌非离子水性

聚氨酯的制备与性能

张孜文 1,2 ，杨建军 1,2* ，吴庆云 1,2 ，吴明元 1,2 ，张建安 1,2 ，刘久逸 1,2

（1. 安徽大学 化学化工学院，安徽 合肥 230601；2. 安徽省绿色高分子重点实验室，安徽 合肥 230601）

摘要：己二胺（HMDA）和盐酸胍（GHC）通过熔融缩聚制备了抗菌剂聚六亚甲基胍盐酸盐（PHMG），将 PHMG
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与甲基丙烯酸缩水甘油酯（GMA）反应制得了 C==C 官能化 PHMG（MPHMG）。通过 FTIR、 HNMR、 CNMR
和 UV 对 MPHMG 进行了表征。将 MPHMG、2-羟基-2-甲基-1-苯基丙酮和 C==C 封端非离子水性聚氨酯
（NWPU）共混，待水挥发后经紫外固化得到 PHMG 基抗菌涂层 GNWPU。通过 FTIR、TGA、拉伸、吸水率
和抗菌性能测试对 GNWPU 胶膜的结构与性能进行了表征。结果表明：MPHMG 会增加 GNWPU 胶膜中软段的
氢键作用和亲水基团含量。相对于 NWPU 胶膜，当 GNWPU 中 MPHMG 含量为 2.0%（以 NWPU 质量为基准，
下同）时，其热失重 30%和 50%所对应温度（T 30% 和 T 50% ）分别提高了 7.3 和 12.6 ℃，拉伸强度提高了 1.6 MPa，
吸水率增加了 6.8%。抗菌实验表明，当胶膜中 MPHMG 的含量大于 1.0%时，接触细菌 2 h，对金黄色葡萄球菌
和大肠杆菌的抗菌率均可达到 99.8%以上。
关键词：双键官能化 PHMG；非离子水性聚氨酯；紫外固化；抗菌性；功能材料
中图分类号：TQ323.8 文献标识码：A 文章编号：1003-5214 (2020) 09-1799-07

Preparation and properties of UV curable PHMG-based
antibacterial nonionic waterborne polyurethane

1,2
1,2
1,2
ZHANG Ziwen , YANG Jianjun 1,2* , WU Qingyun , WU Mingyuan ,
1,2
1,2
ZHANG Jian'an , LIU Jiuyi
（1. School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, Anhui, China; 2. Key Laboratory
of Environment-friendly Polymer Materials of Anhui Province, Hefei 230601, Anhui, China）
Abstract: Antibacterial agent polyhexamethyleneguanidine hydrochloride (PHMG) was prepared by melt
polycondensation of hexamethylenediamine (HMDA) and guanidine hydrochloride (GHC). Then C==C
functionalized PHMG (MPHMG) was prepared by the reaction of PHMG with glycidyl methacrylate
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(GMA) and characterized by FTIR, HNMR, CNMR and UV. The PHMG-based antibacterial films
GNWPU were prepared by UV curing of the mixture MPHMG, 2-hydroxy-2-methyl-1-phenylacetone and
C==C terminated nonionic waterborne polyurethane (NWPU) after water volatilization. The structure and
properties of GNWPU films were characterized by FTIR, TGA, tensile, water absorption and antibacterial
performance tests. The results showed that MPHMG could increase the hydrogen bonding and hydrophilic
group content in the soft segment of GNWPU films. Compared with those of NWPU film, the temperatures
at 30% and 50% of mass loss (T 30%) and (T 50%) of GNWPU film containing 2.0% MPHMG (based on the
mass of NWPU, the same below) was improved by 7.3 and 12.6 ℃, the tensile strength was increased by
1.6 MPa, and the water absorption was increased by 6.8%. The antibacterial test revealed that when the
MPHMG content in the film was more than 1.0%, the antibacterial rate of GNWPU films against S.aureus
and E.coli could reach over 99.8% after contacting with bacteria for 2 hours.

收稿日期：2020-03-08; 定用日期：2020-04-28; DOI: 10.13550/j.jxhg.20200175
基金项目：安徽省 2017 年度科技计划重点项目（1704a0902018）；安徽省高校自然科学研究重点项目（No.KJ2016A792）
作者简介：张孜文（1995—），男，硕士生，E-mail：1562422541@qq.com。联系人：杨建军（1960—），教授，博士生导师，andayjj@163.com。