壳聚糖基抗菌材料的制备及在洗衣机中的应用研究

Preparation of chitosan-based antibacterial material and its application in washing machine

以壳聚糖(CTS)为主要基材,结合无机抗菌剂Ag、Cu,制备了Ag/Cu-CTS复合抗菌颗粒及一种天然无污染的应用于机洗过程的抗菌材料。对Ag/Cu-CTS复合抗菌颗粒的制备条件及其性能进行研究。考察Ag质量分数、致孔剂用量、交联剂体积分数、交联温度等对抗菌颗粒性能的影响。通过颗粒机械强度、傅里叶红外光谱(FT-IR)、扫描电子显微镜(SEM)对复合颗粒进行综合性能评估,并对Ag/Cu-CTS复合抗菌颗粒在机洗中的应用进行评估。结果表明,在Ag质量分数为40%、致孔剂用量为2.5 mL、交联剂体积分数为1.0%、交联温度为45℃条件下制备的Ag/Cu-CTS复合抗菌颗粒抑菌效果最好。

Taking chitosan(CTS)as substrate and Ag/Cu as inorganic antibacterial agents,Ag/Cu-CTS composite antibacterial particles are prepared,and hence a natural,non-polluting antibacterial material for washing machine is prepared.The preparation conditions and performance of Ag/Cu-CTS composite antibacterial particles are studied.The effects of Ag concentration,porogen dosage,crosslinking agent concentration,and crosslinking temperature on the performance of antibacterial particles are investigated.Comprehensive performance evaluation of Ag/Cu-CTS particles is carried out through the analysis of particle mechanical strength,FT-IR and SEM.The application of Ag/Cu-CTS antibacterial particles in washing machine is evaluated.It is verified that the best antibacterial effect will be performed by Ag/Cu-CTS composite antibacterial particles prepared under the conditions that the concentration of Ag is 40%,the dosage of porogen is 2.5 mL,the concentration of crosslinking agent is 1.0%,and the crosslinking temperature is at 45℃.