热处理对PTT短纤维力学性能的影响  

Effect of heat treatment on mechanical properties of PTT staple fiber

作　　者：刘颖[1] 任永花[1] 俞建勇[1] 

机构地区：[1]东华大学纺织学院,上海200051

出　　处：《合成纤维工业》2005年第3期19-21,共3页China Synthetic Fiber Industry

摘　　要：研究了PTT短纤维热处理前后的力学性能,并与PET纤维进行了对比。结果表明,PTT短纤维具有优良的弹性性能,其断裂伸长率和弹性回复比PET纤维高。经100℃热处理后,PTT纤维的强伸性能降低,在应力1.0cN和10%伸长下的弹性显著减弱,说明热处理对PTT的弹性性能具有较大的影响。The mechanical properties of PIT staple fiber were studied before and after heat treatment and were compared with those of PET fiber. The results showed that PTT staple fiber had splendid elasticity and showed higher elongation at break and e-lastic resiliency as compared with PET fiber. After heat treatment at 100℃, the strength and elongation of PTT fiber were decreased and the elasticity was decreased considerably at 1.0 cN stress and 10% elongation, which indicated that the heat treatment had a profound effect on the elasticity of PTT fiber.

关 键 词：PTT短纤维 热处理 力学性能 PET纤维 弹性性能 断裂伸长率 弹性回复 

分 类 号：TQ342.29[化学工程—化纤工业]