摘要
研究了用己二醇二丙烯酸酯为接枝单体、过硫酸铵(APS)为引发剂对真丝的接枝共聚反应,分析了接枝率的影响因素,并测试了改性真丝的主要应用性能.结果表明:乳液和乙醇 /水为溶剂的2种体系都能在真丝上获得较高接枝率.对于乙醇 /水体系v(乙醇)∶v(H2O)=1∶1,接枝单体20～30g/L,2 %甲酸4ml,引发剂APS0.5g/L,65～70℃接枝60min的接枝率高.改性后真丝的断裂强度、延伸度、吸湿性能都可获得改善,对酸、碱的溶解性提高,但染色性能提高不明显。
With hexanediol diacrylate as graft monomer and ammonium persulfate(APS) as initiator, graft copolymerization of natural silk was studied. Factors influencing graft rate were analysized and the primary performance properties of the modified silk were tested. The results testified that higher graft rate on silk could be achieved with emulsion or ethanol/ water as solvent. As for ethanol/ water system, high graft rate was obtained under the conditions:v(ethanol)∶v(H2O)=1∶1;graft monomer:20～30g/ L,2% formic acid 4ml; initiator:0.5g/ L APS; reaction at 65～70℃ for 60 minutes. The modified natural silk exhibited improvement in breaking strength, elogation, moisture absorbancy and solubility to acid or alkali. It showed no significant enhance in dyeability and non-yellowing.
出处
《印染助剂》
CAS
北大核心
2002年第2期15-18,共4页
Textile Auxiliaries
关键词
真丝
接枝改性
已二醇二丙烯酸酯
接枝率
影响因素
应用性能
graft modification of natural silk
hexanediol diacrylate
graft rate
influencing factors
performance properties
