正交实验法制备海泡石载银离子抗菌剂工艺初探  

The Primary Study on the Technology of Ag+-adsorbed Sepiolite as Anti-bacterial Material by Orthogonal Experiment

作　　者：卢雨[1] 刘菁[1] 

机构地区：[1]成都理工大学材料科学与工程系,四川成都610059

出　　处：《中国非金属矿工业导刊》2009年第5期37-38,52,共3页China Non-Metallic Minerals industry

摘　　要：以酸热共同改性海泡石粉体为原料,采用海泡石粉体先吸附六偏磷酸根再吸附Ag+的工艺方案,制备海泡石载Ag+抗菌剂,并利用傅立叶红外光谱对海泡石的提纯、改性以及与六偏磷酸根的结合效果作出检测。海泡石载银实验考察了Ag+浓度、载银时间、载银温度以及固液比对抗菌剂制备的影响,采用抑菌圈法评价实验因素对抗菌效果的影响,由正交组合确定了较佳的工艺方案。通过原子吸收光谱对海泡石载银量进行测定。载银海泡石在室温条件下放置半月颜色无明显变化,变色得到了缓解。Using acid and heat treated sepiolite as the adsorbent, it is adopted the procedure that sepiolite which first combines （PO）66- adsorbs Ag＋ to produce anti-bacterial powder with FTIR as the detective to measure the effect of purifying raw sepiolite, acid and heat-treating impact on purified sepioloite and the combination between sepiolite and （PO）66. In this paper, orthogonal experiment is taken to examine Ag＋ concentration,action time,action temperature and the ratio of the amount between sepiolite powder and Ag＋ solution that all affect the experiment,and to get the better procedure condition.Anti-bacterial circle is applied to check the effect of the action ingredients on anti-bacterial powders that are made, and through AAS, the amount ofAg＋ adsorbed is examed. Antibacterial sepiolite color＇s turning is apparently slowed down through showing no color turning at the room temperature for half month.

关 键 词：海泡石 正交实验 抑菌圈 变色缓解 

分 类 号：P619.231[天文地球—矿床学] TB34[天文地球—地质学]