Abstract:

In this paper, an environmentally friendly multi-finishing agent without PFOS was synthesized by phosphonitrilic chloride trimer,,tetrafluoropropyl alcohol and sodium metal in tetrahydrofuran, it’s application on cotton was researched. The structure of this finishing agent was characterized by IR. The effect of dosage of finishing agent, catalytic agent and the temperature of curing was also researched, and the optimum process was observed: immerse twice padding two times at room temperature, the dosage of finishing agent was100 g/L，the dosage of catalytic agent was2.5g/L, and the curing temperature was 150℃.The thermal stability of treated cotton was observed by Tg and DTg. The results show that after treated by the multi-finishing agent, the cotton was endowed nice flame retardance and water repellence.