硅偶联剂交联壳聚糖纤维的染色性能  

Dyeing properties of the crosslinked chitosan fiber with silanes coupling agents

作　　者：何雪梅[1] 

机构地区：[1]盐城工学院纺织服装学院,江苏盐城224003

出　　处：《丝绸》2012年第4期19-23,共5页Journal of Silk

摘　　要：利用3-氨基丙基三乙氧基硅烷(KH550)及γ-缩水甘油醚氧丙基三甲氧基硅烷(KH560)为交联剂,分别制备了纳米SiO2改性壳聚糖纤维ACSH和GCSH。通过红外光谱(FTIR)、扫描电镜(SEM)等表征方法研究了SiO2改性壳聚糖纤维ACSH和GCSH的分子结构和微观形貌,并对其染色性能进行了研究。红外光谱证实硅偶联剂与壳聚糖纤维发生了交联,纳米SiO2粒子分布于改性壳聚糖纤维表面。染色条件为室温、pH值为8,染色时间分别120 min、180 min时直接桃红12B在ACSH和GCSH纤维上的上染率较高。与GCSH纤维相比,ACSH纤维用直接桃红12B染色上染率更高。ACSH和GCSH纤维对直接桃红12B的吸附动力学行为可用准二级动力学模型进行描述。ACSH and GCSH fibers were obtained by the surface modification of pure chitosan tlber witn tiac SiO2 nanoparticle treated respectively by using 3-aminopropyltriethoxysilane（KH550） and γ-Glycidoxyprop yltrimethoxysilane（KH560） as the cross-linking agents. The molecular structure, micro-surface morphology and dyeing performance of the pure chitosan, ACSH and GCSH fibers were researched with FT1R, SEM and other indicative methods. FTIR spectra proved that silica coupling agents was crosslinked with the chitosan fiber and the nano SiO2 particles distributed at the surface of the chitosan fiber by the surface modification. The optimization dyeing parameters for ACSH and GCSH fiber with direct Pink 12B were 20 ℃, pH value of 8, time 120 min and 180 min respectively. ACSH fiber had the higher dyeing rate than that of GCSH fiber for Direct Pink 12B. The adsorption kinetics of ACSH and GCSH fibers for Direct Pink 12B can be described by the pseudo second-order reaction model.

关 键 词：壳聚糖纤维 硅偶联剂 交联 染色性能 

分 类 号：TS193.8[轻工技术与工程—纺织化学与染整工程]