应用高能辐照法制备新型高富集性能聚丙烯无纺布

Preparation a High Enrichment Polypropylene Non-woven Fabrics by High Energy Irradiation Grafting Polymerization

通过紫外辐照接枝方法,在聚丙烯(PP)无纺布基体表面引入β-环糊精单体,制备一种新型的高性能富集材料,对水中的痕量有机污染物进行有效富集。利用扫描电子显微镜(SEM)对接枝改性前后聚丙烯无纺布基体表面形态进行了表征。本文还以苯酚为被吸附有机物考察了无纺布改性前后的富集性能。当改性聚丙烯无纺布的接枝率为3.7%,对水中苯酚(0.05 ppm)的回收率从原纤维的2.4%提高到54.9%。

The new composite sorbent was prepared, which was an environmental friendly sorbent material for the removal poisonous organic chemicals from water, and the sorbent was made by high energy irradiation polymerization of acylstion of maleic anhydride β - cyclodextrin onto polypropylene non - woven fabrics substra grafted fiber was characterized by SEM. It was found that the degree of grafting was strongly dependent on the grafting te. The grafting conditions. When the grafting degree of PP -g -CD was 3.7%, the maximum recovery ratio for phenol （0. 05 ppm） reached 54. 9%, while the original PP non - woven fabrics was only 2.4%.