ABSTRACT
Modification of silk fabric via grafting with β-cyclodextrin (β-CD) using citric acid (CA) as a cross-linking agent was studied and optimized. A four-factor central composite design combined with response surface methodology (RSM) was employed to optimize the reaction conditions (CA and β-CD concentration, curing temperature, and time) for preparation of β-CD modified silk fabric with a maximum degree of grafting yield and minimum strength loss and minimum yellowness Index. Analysis of variance (ANOVA) proposed a significant quadratic model for optimizing of grafting factors. From the obtained results, it is concluded that CA concentration and curing temperature had a greater influence on grafting yield than curing time and CD concentration. The optimum grafting condition was obtained at β-CD concentration: (57 g/L), CA concentration: (57 g/L), curing temperature: (167°C), and curing time (4 min) which results grafting of CD equal to 10%.
摘要
研究了以柠檬酸(CA)为交联剂,β-环糊精(β-CD)接枝改性真丝织物.采用四因素中心复合材料设计,结合响应面法(RSM),对制备接枝率最高、强度损失最小、黄度指数最小的β-CD改性丝织物的反应条件(CA和β-CD浓度、固化温度和时间)进行了优化.方差分析(ANOVA)为嫁接因子的优化提出了一个显著的二次模型.结果表明,CA浓度和固化温度对接枝率的影响大于固化时间和CD浓度.在β-CD浓度:(57g/L)、CA浓度:(57g/L)、固化温度:(167℃)和固化时间(4min)条件下,接枝率可达10%.
Abbreviations
SF | = | Silk fabric |
β-CD | = | β-cyclodextrin |
CDs | = | cyclodextrins |
CA | = | Citric acid |
RSM | = | Response surface methodology |
ANOVA | = | Analysis of variance |
SHP | = | Sodium hypophosphite |
CCD | = | Central Composite Design |
FTIR | = | Fourier-transform infrared spectroscopy |
YI | = | Yellowness Index |