文章摘要
张孜文,杨建军.UV固化PHMG基抗菌非离子水性聚氨酯的制备与性能[J].精细化工,2020,37(8):
UV固化PHMG基抗菌非离子水性聚氨酯的制备与性能
Preparation and Properties of UV-curable Polyhexamethyleneguanidine Hydrochloride-based Antibacterial Nonionic Waterborne Polyurethane Antibacterial Coating
投稿时间:2020-03-08  修订日期:2020-04-22
DOI:
中文关键词: 双键官能化PHMG  非离子水性聚氨酯  紫外固化  抗菌
英文关键词: double bond functionalized PHMG  nonionic waterborne polyurethane  UV curing  antibacterial
基金项目:安徽省2017年度科技计划重点项目(项目编号:1704a0902018);安徽省高校自然科学研究重点项目 (No.KJ2016A792)
作者单位E-mail
张孜文 安徽大学 1562422541@qq.com 
杨建军 安徽大学 andayjj@163.com 
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中文摘要:
      通过乙二胺(GHC)和盐酸胍(GHC)熔融缩聚制备了抗菌剂聚六亚甲基胍盐酸盐(PHMG),将PHMG与甲基丙烯酸缩水甘油酯(GMA)反应制得双键官能化PHMG(MPHMG),通过FTIR、1H NMR、13C NMR和UV表征了MPHMG的成功合成;将MPHMG、光引发剂和双键封端非离子水性聚氨酯(NU)共混,待水挥发后经紫外固化得到抗菌涂层PNU。通过FTIR、TGA、拉伸、吸水率和抗菌性能测试对PNU胶膜的结构与性能进行了表征。结果表明,MPHMG会增加PNU胶膜中软段的氢键作用和亲水基团含量,当胶膜中MPHNG含量为2.0%时,其T30%和T50%分别提高了7.3℃和12.6℃,拉伸强度提高了1.6MPa,吸水率增加了6.8%。抗菌试验表明,当胶膜中MPHMG的含量大于1.0%时,接触细菌2h,对金黄色葡萄球菌和大肠杆菌的抗菌率均可以达到99.8%以上。
英文摘要:
      Polyhexamethyleneguanidine hydrochloride (PHMG) was prepared by melt polycondensation of ethylenediamine (GHC) and guanidine hydrochloride (GHC). Then double bond functionalized PHMG (MPHMG) was prepared by reacting PHMG with glycidyl methacrylate (GMA)PHMG and the successful synthesis of MPHMG was characterized by FTIR, 1H NMR, 13C NMR, and UV. Blending MPHMG, photoinitiator, and double bond-terminated non-ionic water-based polyurethane (NU). After water volatilized, UV-cured the mixture to obtain antibacterial coating PNU. The structure and properties of PNU film were characterized by FTIR, TGA, tensile, water absorption and antibacterial performance tests. The results shown that MPHMG increased the hydrogen bonding in the soft segment and the content of hydrophilic groups of PNU films. When the MPHNG content in the film was 2.0%, the T30% and T50% increased by 7.3 ℃ and 12.6 ℃, the tensile strength increased by 1.6MPa and the water absorption increased by 6.8%. The antibacterial test showed that when the MPHMG content in the film was more than 1.0%, the antibacterial rate against S. aureus and E. coli could reach more than 99.8% after the film exposed to bacteria for 2 hours.
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