可染、抗菌多功能丙纶改性剂的研究

Studies on a Functional Modifying Agent for Polypropylene Fiber to Enhance Its Dyeability and Bacteria Repellancy

设计制造了一种功能化聚丙烯 (FPP) ,研究了它作为改性剂加入丙纶的作用。结果表明 ,FPP不仅不降低丙纶的热稳定性和成纤性 ,而且可大大增强其表面极性 ,与水的接触角从 86 5°降至 71 7° ,表面电阻率从 6 0× 10 1 6 降至 4 8× 10 1 1 。FPP还可增加丙纶的结晶速率 ,而另一方面却降低其结晶度和晶片的尺寸。更有意义的是 ,FPP使丙纶对酸性染料的上染率可达 95 3 % ,并使其对金色葡萄球菌有很强的灭菌效果 ,对大肠杆菌的灭菌率达 10 0 % ,而且经 5 0次以上洗涤并不降低其效果。

A kind of functional polypropylene (FPP) is designed and manufactured, and its effects as a modifying agent on the polypropylene (PP) fiber are researched It is found that FPP hardly declined the heat stability and processing property of PP fiber On the other hand,it greatly enhances the surface polarity of the fiber Therefore,the contact angle with water and the surface resistivity of the fiber is decreased from 86 5°to 71 7°and from 6 0×10 16 to 4 8×10 11 ,respectively Furthermore,FPP can quicken the crystallization speed of the PP However,it contrarily reduces the crystallinity and the crystallite size of PP It is more interesting things that FPP can make the dyeability of PP fiber greatly enhanced to the acid dye and the disperse dye Especially,the dyeability to acid dye can be increased to 95 3% Furthermore,FPP enable PP fiber to possess the powerful repellence to gold staphylococcus,and the sterilization ratio for colicine reaches to about 100% So,it can be seen that FPP is a most promising modifying agent for PP fiber