一、化学纤维制造概述 二、常规化学纤维 三、差别化纤维 四、功能性纤维

一、棉纤维的基本特性 二、麻纤维的基本特性 三、毛纤维的基本特性 四、丝纤维的基本特性

一、纱线的线密度 二、纱线的捻度 三、纱线的毛羽

Guangdong Instltute of Textile Technolegy Justification Textile materials are the basic materials. It is crucial to establish a basic understanding of the science governing the behavior of these materials. The course is taught in a bilingual system such that the students will have an opportunity to enhance their English ability while learning the key knowledge in textiles

Guangdong Institute of Textile Technolegy Structures of wool fibers Submicrostructure Cotex core of the wool fiber: 90% of the fiber volume, consists of countless long, spindle-shaped- cells held together by intercellular cement

Guangdong Instltute of Textile Technolegy Introduction Fibers in which forming substance is cellulose acetate where not less than 92% of hydroxyl groups are acetylated: replacing -OH groups with -COCH3. Acetate: 2 of 3 -0H groups in each 6- member ring are acetylated; ~2.5 Triacetate: Nearly all -OH groups are replaced 2.91~2.96

Guangdong Instltute of Textile Technolegy Island in sea Manufacturing process Suspension of droplets of one component in matrix of the other Two components should have similar melting temperatures Can make composite fiber

Guangdong Institute of Textile Technolegy Outline gCarbon fibers 0Glass fibers 0Aramid fibers Ultra High Modulus Polyethylene fibers

Guangdong Inatitute of Textile Technolegy Introduction The larva of certain insects for use in their building webs, climbing ropes and cocoons 0Spiders 0Commercial silk industry: use larva of silkworm o Application: Mostly apparel, was also used for parachutes

Guangdong Instltute of Textile Technolegy Fiber Properties and Identification 0Mechanical properties Tensile properties Tensile deformation