PNIPAAm温敏处理棉织物

Influence of Poly( N-Isopropylacrylamide) Treament on Temperature-Response of Cotton Fiber

使用过硫酸铵(APS)与亚硫酸氢钠(SBS)复配作为引发剂,制备聚N-异丙基丙烯酰胺(PNIPAAm),然后用其处理棉织物。借助扫描电镜(SEM)、差示扫描量热分析(DSC)、接触角(CA)对PNIPAAm处理后棉织物的表面形貌、温敏性进行了表征。结果表明:PNIPAAm处理棉织物后使其具有了温敏性,其LCST为34℃;且随着PNIPAAm质量分数的增加,处理后的棉织物温敏性能增强。

The poly （N-isopropylacrylamide） （PNIPAAm） was prepared by chosing ammonium persulfate （APS） and sodium bisulfite（SBS） as initiator. Then the synthesized PNIPAAm was coated on the surface of cotton fiber, obtaining the modified cotton fiber. Subsequently, the microstructure of PNIPAAm and the temperature-responsive of the modified cotton fiber were studied byscanning electron microscope （SEM） , differential scanning calorimetry （DSC） and contact angle （CA） , respectively. The modified cotton fiber obtained owns temperature-responsive function near 34 22. With the increase of PNIPAAm concentration, the temperature-response of modified cotton fiber enhances.