高模低收缩PET工业丝不同温度下力学性能研究  

Mechanical Properties of High-modulus-low- shrinkage PET Industrial Yarn under Different Temperature

作　　者：吕晶[1] 王善元[1] 

机构地区：[1]东华大学纺织学院,上海200051

出　　处：《纺织导报》2005年第1期30-32,共3页China Textile Leader

摘　　要：在不同温度下对高模低收缩 PET 工业丝进行拉伸性能测试,得到初始模量、断裂伸长率、强度、Lase—5、模量极小值E_(min)及相对应的伸长率ε_(min)等几个力学指标以及不同温度下的应力—应变曲线。通过分析得出:高模低收缩PET工业丝在实验温度下的拉伸为均匀拉伸,无细颈产生,力学性能随温度的上升呈下降趋势,但未出现急剧下降的现象。The tensile properties of high-modulus-low-shrinkage PET industrial yarn are tested under different temperature, thus some mechanical indexes such as the initial modulus, breaking elongation, strength, Lase-5, minimal modulus Emin and the relevant elongation εmin as well as the stress-strain curve under different temperature are obtained. By analyzing, the article draws the following conclusion: under the experimental temperature, the tensile of the high-modulus-low-shrinkage PET industrial yarn is uniform without necking, the mechanical properties of the yarn decline but not sharply as the temperature goes up.

关 键 词：工业丝 低收缩 PET 力学性能 断裂伸长率 均匀 初始模量 温度 下降 现象 

分 类 号：TQ342[化学工程—化纤工业]