青桐韧皮化学脱胶与纤维性能分析  

Chemical degumming and properties of Firmiana platanifolia fiber

作　　者：李长龙[1] 刘琼[1] 孙瑞霞[1] 王宗乾[1] 

机构地区：[1]安徽工程大学安徽省纺织面料重点实验室,安徽芜湖241000

出　　处：《纺织学报》2013年第12期8-11,21,共5页Journal of Textile Research

基　　金：安徽省科技攻关项目(1106b0105062);安徽省高校省级自然科学项目(KJ2012B026);应用化学与生态染整工程浙江省高校重中之重学科开放基金项目(YR2012017)

摘　　要：为充分开发利用当地纤维素纤维资源,采用化学脱胶工艺制备了青桐纤维,并对其韧皮成分进行了分析,测试分析了青桐纤维在干、湿态下的多项物理力学性能;借助扫描电镜、XRD对纤维的外观形貌,结晶度和取向度进行了研究,对比分析了纤维的聚集态结构。结果表明,青桐韧皮纤维素含量大于63%,果胶质和脂蜡质含量较高,经化学脱胶处理后青桐纤维残胶率为4.2%;纤维截面近似椭圆,没有空腔,纵向有沟槽和横节,具有较高的初始模量和较低的断裂伸长率,但其线密度较大,Segal法计算纤维的结晶度为64.54%,取向度为98.04%。For full development and utilization of the local cellulose fiber resources, the chemical degumming process was adopted to prepare Firmiana platanifolia fibers whose chemical compositions, physical and mechanical properties in both dry and wet states, appearance, crystallinity and orientation degree, and aggregation structure were examined using SEM and XRD. The results show that the content of cellulose of Firmiana platanifolia is more than 63% , and pectin and wax contents are high. After chemical degumming, the residual gum content in Firmiana platanifolia fiber is 4.2%. The cross section of the fiber approximates to an ellipse without central cavity. And longitudinally there are grooves and cross nodes. The fiber has higher initial modulus and lower elongation at break, but the linear density is greater. In Segal method, the crystallinity of fiber is 64.54% , and the orientation degree is 98.04%

关 键 词：青桐纤维 XRD 线密度 结晶度 取向度 

分 类 号：TS102.2[轻工技术与工程—纺织工程]