含氟硅丙烯酸酯乳液的合成及拒水性能分析

Synthesis and water repellency of polyacrylate latex containing fluorine and silicone

为提高纯棉织物的拒水性,以丙烯酸丁酯(BA)、甲基丙烯酸十二氟庚酯(G-04)和乙烯基三乙氧基硅烷(KH-151)作为反应单体,在阴/非复合乳化剂和引发剂过硫酸钾(KPS)作用下,采用乳液聚合的方法制备含氟硅丙烯酸酯乳液.用红外光谱(FT-IR)对含氟硅丙烯酸酯乳液主组分的结构进行表征,并考察其对棉织物的拒水性能.通过探讨不同合成工艺参数对含氟硅丙烯酸酯乳液的拒水性能的影响,确定合成的含氟硅丙烯酸酯乳液的最佳原料配比.将制备的乳液对纯棉织物进行拒水整理,可明显改善织物的拒水性能,整理后纯棉织物对水的接触角达到126.8°,静水压达到1.45kPa,表现出良好的拒水效果.

In order to improve the properties of water repellency for cotton fabrics ,butyl acry‐late(BA),dodecafluoroheptyl methacrylate(G‐04) and triethoxyvinylsilane(KH‐151) were used as monomers to synthesize pololyacrylate latex containing ,fluorine and silicone ,by adop‐ting emulsion polymerization technique .K2S2O8 (KPS) and nionic/nonionic surfactants were employed as water soluble initiator and mixed emulsifier ,respectively .Structure information of polyacrylate latex containing fluorine and silicone was characterized by Fourier Transform In‐frared Spectrometer(FT‐IR) ,and the water repellent property of cotton fabric was investiga‐ted .The optimum raw material ratio of polyacrylate latex containing fluorine and silicone was set by the investigation of the influence of processing parameter on w ater repellency .T he trea‐ted cotton fabric exhibits good water repellency property ,the water contact angle of cotton fab‐ric treated with the finishing agent reaches 126.8° ,and hydrostatic pressure reaches 1.45kPa .