椰炭改性涤纶纤维基本性能测试与分析

Measurement and analysis of coconut charcoal fiber properties

测试了椰炭纤维的基本性能,并与普通涤纶纤维进行了比较,结果表明：椰炭纤维纵向有不规则的多条连续分布的条纹和黑色颗粒斑点,截面形态为四叶形的异型结构.干态、湿态断裂强度为涤纶纤维的78%;断裂伸长率是涤纶纤维的1.19~1.22倍;初始模量与涤纶纤维基本相近;回潮率为1.02%,是普通涤纶纤维的2.5倍;静、动摩擦因数均小于涤纶纤维（与金属件摩擦除外）;卷曲率、卷曲弹性回复率和残留卷曲率均小于涤纶纤维（表明椰炭纤维的抱合力、卷曲的恢复能力和卷曲牢度稍差于涤纶纤维）.

The basic properties of coconut charcoal fibers were measured and compared with those of ordinary polyester fiber.The results showed that the longitudinal of coconut charcoal fiber had several irregular continuous stripes and black grain spots,the cross section belonged to four leaf special form structure.The breaking strength of polyester fiber at dry and wet state was 78%,the elongation at break was 1.19～1.22 times of polyester,the initial modulus was similar with polyester.The moisture regain of coconut charcoal fiber was 1.02%,which was 2.5 times of polyester fiber.The static and kinetic friction coefficient of coconut charcoal fiber was both lower than polyester fiber except the friction with metal.Crimp ration,elastic recovery of curl rate and retention crimp ration were all smaller than those of polyester fiber,which indicated that the cohesion,the crimp recovery capability and crimp fastness of coconut fiber were inferior to polyester fiber.