摘要
采用溶液凝胶法制备纳米SiO2粒子,利用MPS对纳米SiO2粒子进行偶联处理。以苯乙烯为单体,十六烷基三甲基溴化铵为乳化剂,环己烷为助稳定剂,通过细乳液聚合制得纳米SiO2/PSt粒子。改变乳化剂用量,得到不同稳定性及粒径的杂化粒子,对纳米SiO2及SiO2/PSt进行表征。结果显示:经MPS修饰的纳米SiO2平均粒径为38.7 nm;当乳化剂用量为0.035 g时,细乳液稳定性较好,粒径分布较窄,平均粒径为148.8 nm。将所制得的细乳液加入丙烯酸类浆料SX-5中,对其进行改性,测试SX-5和纳米改性SX-5浆料的黏度,并分别对涤/棉纱进行上浆实验,测试上浆纱的性能。结果表明:改性前后的浆料黏度基本无变化,上浆率提高8.9%;改性后浆料的浆纱性能较原浆料有一定提高,浆纱断裂强力、断裂伸长和耐磨分别提高4.7%、-6.5%和7.0%。
Nano-SiO2 particles were prepared via sol-gel method and then coupled by MPS.Preparation of nano-SiO2/PSt microspheres microspheres was undertaken by miniemulsion using styrene as monomer,CTAB as emulsifier and cyclohexane as co-stabilizer.A series of nano-SiO2/PSt miniemulsion,with different stability and particle size,were prepared with different contents of emulsifier.Nano-SiO2 and nano-SiO2/PSt were characterized.The results showed that： the average particle size of MPS-modified Nano-SiO2 was 38.7 nm;when the content of CTAB was 0.035 g,the prepared miniemulsion,with an average particle size of 148.8 nm,had a good stability and a narrow particle size distribution.Then the prepared miniemulsion was charged into the polyacrylate sizing agent SX-5 to form the nano-modified SX-5.The viscosities of SX-5 and nano-modified SX-5 were determined.Finally,T/C blended single yarns were sized by these two sizing agents,respectively,and properties of the sized yarns were examined.The results showed that： there was tiny difference of viscosity between SX-5 and nano-modified SX-5,but the sizing rate of nano-modified SX-5 improved by 8.9%;and the breaking strength,breaking elongation and abrasion resistance of T/C yarns sized by nano-modified SX-5 improved by 4.7%,-6.5% and 7.0%,respectively as compared with SX-5.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2012年第11期66-71,共6页
Journal of Textile Research
基金
江苏省2011年度普通高校研究生科技创新计划资助项目(CXLX11_0650)
中国纺织工业协会科技指导性项目(2010016)
南通大学研究生科技创新项目(YKC11049)
关键词
溶液凝胶法
纳米SIO2
细乳液聚合
浆料
浆纱
sol-gel method
nano-SiO2
miniemulsion polymerization
sizing agent
sizing
作者简介
葛璐（1987-），女，硕士生。研究方向为新型纳米改性聚丙烯酸类浆料。
崔建伟，通信作者，E-mail：cui．jw@ntu．edu．cn。
