Page 84 - 《精细化工》2022年第2期
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第 39 卷第 2 期 精 细 化 工 Vol.39, No.2
2022 年 2 月 FINE CHEMICALS Feb. 2022
功能材料
二硫化钼负载聚六亚甲基胍盐酸盐抗菌
水性聚氨酯的制备与性能
夏雪婷 1,2 ,汪煜强 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. 安徽省水基高分子材料高性能化工程实验室,安
徽 合肥 230601)
摘要:以聚己二酸-1,4-丁二醇酯二醇(PBA)、异佛尔酮二异氰酸酯(IPDI)、2,2-二羟甲基丙酸(DMPA)为
主要原料,单宁酸(TA)剥离纳米二硫化钼水溶液(TA-MoS 2 水溶液,质量浓度为 2 g/L)为改性剂制备了 TA-MoS 2
改性的水性聚氨酯(TMPU)系列乳液,再将 TMPU 胶膜浸泡在含量为 2%(以水的质量为基准,下同)的聚六
亚甲基胍盐酸盐(PHMG)水溶液中,制备出 MoS 2 负载 PHMG 抗菌水性聚氨酯(P-TMPU)。DLS、SEM、
AFM 测试表明 TA 成功剥离 MoS 2 ,且 MoS 2 分散性良好。通过 FTIR、TG、SEM、接触角对 TMPU 系列乳液进
行了分析和表征。结果表明,添加 60 mL TA-MoS 2 水溶液改性后的胶膜失重 30%时的热分解温度(T 30% )和失
重 50%时的热分解温度(T 50% )分别为 324.9 和 354.9 ℃,水接触角为 91.1°,比未添加 TA-MoS 2 水溶液改性胶
膜的 T 30% 和 T 50% 分别提高了 6.4 和 11.4 ℃,水接触角提高 27.9°。P-TMPU 胶膜对大肠杆菌和金黄色葡萄球菌的
抗菌率均达到 99%以上。
关键词:纳米二硫化钼;聚六亚甲基胍盐酸盐;水性聚氨酯;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 (2022) 02-0288-07
Preparation and properties of molybdenum disulfide loaded
poly(hexamethylenebiguanide) hydrochloride antibacterial
waterborne polyurethane
1,2
1,2
1,2
XIA Xueting , WANG Yuqiang , YANG Jianjun 1,2* , WU Qingyun ,
1,2
1,2
1,2
WU Mingyuan , ZHANG Jian'an , LIU Jiuyi
(1. School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, Anhui, China; 2. Engineering
Laboratory of High Performance Waterborne Polymer Materials of Anhui Province, Hefei 230601, Anhui, China)
Abstract: A series of tannic acid (TA)-MoS 2 modified waterborne polyurethane (TMPU) were prepared by
using polyadipate-1,4-butanediol ester diol (PBA), isophorone diisocyanate (IPDI), 2,2-dimethylpropionic
acid (DMPA) as main raw materials and TA stripped nano-molybdenum disulfide aqueous solution (TA-
MoS 2 aqueous solution, mass concentration 2 g/L) as modifier. Then, MoS 2 loaded poly(hexamethylenebiguanide)
hydrochloride (PHMG) antibacterial waterborne polyurethane (P-TMPU) films were prepared by immerging
TMPU films in 2% (based on the mass of water, the same below) PHMG aqueous solution. The results of
DLS, SEM and AFM showed that TA successfully stripped MoS 2 and MoS 2 had good dispersion. The series
of TMPU emulsions were analyzed and characterized by FTIR, TG, SEM, contact angle. The results showed
that the thermal decomposition temperature of 30% mass loss (T 30%) and that of 50% mass loss (T 50%) of the
film modified by adding 60 mL TA-MoS 2 aqueous solution were 324.9 and 354.9 ℃, respectively, and the
water contact angle was 91.1°, which were correspondingly higher 6.4 ℃, 11.4 ℃ and 27.9°. Both
antibacterial rates of P-TMPU film against Escherichia coli and Staphylococcus aureus were more than 99%.
收稿日期:2021-08-03; 定用日期:2021-11-09; DOI: 10.13550/j.jxhg.20210784
基金项目:安徽省 2018 年度科技重大专项(18030901077),安徽省高校自然科学研究重点项目(KJ2016A792)
作者简介:夏雪婷(1997—),女,硕士生。联系人:杨建军(1960—),男,教授,博士生导师,E-mail:andayjj@163.com。