fading of fiber

A novel halochromic fiber was synthesized by first aminating commercially available polyacrylonitrile fiber with ethylenediamine and then immobilizing phenolphthalein covalently through a Mannich reaction.

通过对商品化的腈纶纤维进行乙二胺改性和利用Mannich反应共价化学键合酚酞指示剂制备了一种新型酸碱变色纤维;利用红外光谱、紫外光谱、X射线粉末衍射和扫描电镜对其进行测试和表征,并对该酸碱变色纤维的酸碱变色性能、响应速度、重复使用稳定性等方面进行了测试。