【作者】 何银地；

【导师】 黄晨；

【作者基本信息】 安徽农业大学 ， 特种经济动物饲养， 2007， 硕士

【摘要】 本论文先通过索氏提取法提取芦荟中的蒽醌类化合物,再通过柠檬酸、酒石酸、芦荟蒽醌提取物对纯棉织物进行复合整理,通过多元羧酸的桥联作用,使蒽醌提取物与棉纤维大分子发生较为牢固的化学结合作用,使棉织物同时获得耐久的抗皱抗菌抗紫外性能。采用索氏提取法,通过单因素分析和正交分析法,得到芦荟蒽醌提取的最佳工艺条件为:乙醇浓度为75%,回流温度为80℃,芦荟加入量为40g。分别用显色反应、紫外光谱、红外光谱测试方法证明芦荟提取物中主要成分为蒽醌类物质。采用单因素分析法,分析了各因素对整理效果的影响;通过正交设计,综合各因素对整理效果的影响,得出最佳整理工艺:多元羧酸浓度为10%,次磷酸钠浓度为6%,芦荟浓度为2%,柠檬酸与酒石酸摩尔比1:1,170℃焙烘3min。最佳工艺整理后,棉织物的增重率达到13.12%,紫外线平均透过率T(UVA)为1.29%,T(UVB)为1.01%,UPF值为68.26,折皱回复角达到221.8°,断裂强力保留率为68.3%,白度保留率为78.7%。整理后织物进行抗菌测试,结果表明,芦荟整理棉织物对抗金黄色葡萄球菌96.6%,抗大肠杆菌91.2%,抗白色念珠菌的性能稍差,抗菌率为68.5%。经洗涤50次后,折皱回复角提高40%,断裂强力和白度上升,抗金黄色葡萄球菌和大肠杆菌率达到80%以上,紫外线平均透过率T(UVA)为2.62%,T(UVB)为2.49%。并通过扫描电子显微镜、红外光谱图、x射线衍射图测试,证实多元羧酸与棉纤维大分子按环酐机理发生了酯化反应,芦荟蒽醌通过多元羧酸的桥联作用以化学键的形式固定在棉纤维上。本论文系统研究了多元羧酸/芦荟同浴整理棉织物的机理、工艺、改善整理效果的方法,整理后棉织物的物理机械、抗菌和抗紫外等各项性能指标,对加快环保纺织品的生产具有实用的指导意义。更多还原

【Abstract】 This paper first picks up chemicals like anthraquinones from aloe by soxhlet extraction,then organizes pure cotton fabric through citric acid,tartaric acid and chemicals distilled.Aloe and cotton are strictly combined through bridging function of Poly-carboxylic acids.Meanwhile,cotton fabrics have the persistent property of resisting anti-wrinkle,anti-bacterial and anti- anti-ultraviolet ray.With single-factor and orthogonal analysis,we found the best technology of extracting anthraquinones compound in aloe by soxhlet extraction,that is the concentration of grain ethanol 75%,circumfluence temperature 80℃,amount of aloe is 40g.the main ingredient in aloe is proved to be anthraquinones respectively through tests of color-appearance reaction、ultraviolet spectrum and infrared spectrum.This paper analyzes the influence of different factorson entire effect through single-factor analysis.By orthogonal designing,we synthesized factors on finishing,and found the best finishing technology:poly-carboxylic acids concentration is 10%,SHP concentration is 6%,aloe concentration is 2%,CA and TA mole ratio is 1:1,curing temperature and time is 170℃×3min.The ratio of incresing the weight of fabrics reaches 13.12%;ratio of transparency of T (UVA)is 1.29%,T(UVB)1.01%,UPF 68.26,reversion of wrinkle reaches 221.8°,rupture mightiness remained is 68.3%,whiteness remained is 78.7%.After anti-bacteria testing the finished cotton fabrics,we found that the rate of anti-stap.aureus reached 96.6%,anti-e.coli reached 91.2%,anti- candida albicans reached 68.3%.After washing 50 times,reversion of wrinkle increased 40%,rupture mightiness and whiteness rose,anti-g stap.aureus and antie. coli reached above 80%,ratio of transparency of T(UVA)is 2.62%,T(UVB)2.49%.With scan electron microscope,infrared spectrogram and X-diffraction chart,we proved that poly-carboxylic acids esterified large molecule of cotton fiber because of ring-anhydride.By bridging of poly-carboxylic acids,aloe anthraquinones fastened cotton fiber as chemical bond.This paper investigates on the mechanism,technology,the way to improve treatment effect,mechanical,anti-bacterial properties and anti-ultraviolet ray of poly-carboxylic acids/aloe treatment,which will push the development of environment friendly textile product.更多还原