摘要
As very useful superficial modification agents, the common long perfluoroalkyl — containing agents are facing the ecological problems, such as persistence, bioaccumulation, and/or toxicity in the environment. In order to overcome the problems, we designed and synthesized a polyether diol containing short perfluoroalkyl side chains, which was condensed with diisocyanate to form fluorine-containing aqueous polyurethane. This aqueous polyurethane was applied on cotton fabrics by conventional pad-dry-cure process. The treated cotton fabrics showed good water repellent property with the contact angle reached 131°, and also possessed good washing durability.
As very useful superficial mediflcation agents, the common long perfluoroalkyl -- containing agents are facing the ecological problems, such as persistence, bioacumulatlen, and/or toxicity in the environment. In order to overcome the problems, we designed and synthesized a polyether dioi containing short perfluoroaikyl side chains, which was condensed with diisocyanate to form fluorine-containing aqueous polyurethane. This aqueous polyurethane was applied on cotton fabrics by conventional pad-dry-cure process. The treated cotton fabrics showed good water repellent property with the contact angle reached 131°, and also IXBSessed good washing durability.
基金
Supported by the Programfor Changjiang Scholars and Innovative Research Teamin University (No.IRT0526)
关键词
聚亚安酯
棉纺织物
构成材料
化学反应
short fluoroalkyl chain, aqueous polyurethane, water repellent.