<section data-role="outer" class="article135" label="edit by 135editor"><section data-role="paragraph" class="_135editor"><p style="vertical-align:inherit;"><br></p></section><section class="_135editor" data-tools="135编辑器" data-id="112775"><section style="margin: 20px auto;"><section style="display: flex;justify-content: center;"><section style="display: flex;"><section class="assistant" style="height: 100%; width: 10px; border-right: 2px solid rgb(248, 216, 170); background-color: transparent; overflow: hidden;"></section><section style="padding-bottom: 5px; margin: 0px -7px;"><section style="font-size: 12px; color: rgb(136, 190, 104); margin-left: 11px;"><br></section><section style="font-size: 16px; color: rgb(254, 158, 56); text-align: center; padding: 5px 30px; border-top: 2px solid rgb(248, 216, 170); border-bottom: 2px solid rgb(248, 216, 170);"><strong class="135brush" data-brushtype="text">织物的拉伸性能</strong></section></section><section class="assistant" style="height: 100%; width: 10px; border-left: 2px solid rgb(248, 216, 170); background-color: transparent;"><br></section></section></section><section style="padding: 20px 0px 0px;"><section data-autoskip="1" class="135brush" style="text-align: justify; line-height: 1.75em; letter-spacing: 1.5px; color: rgb(51, 51, 51); background: transparent; padding: 0px 5px 10px;"><p style="vertical-align: inherit; text-indent: 2em; line-height: 1.75em;">织物的基本力学性质，包括拉伸、撕裂、顶破和弯曲等，织物的拉伸、撕裂和顶破性能直接影响织物的耐久性（或坚牢度），是评定织物质量的重要内容。织物的基本力学性质与所用的纤维、纱线结构和织物结构的特征有关。<br><br>织物的拉伸性能<br>拉伸性能指标<br><br>断裂强度和断裂伸长率<br><br>织物断裂强度指标单位常用N/5cm，即拉断5cm宽度的织物所需的力。<br><br>断裂功:&nbsp;织物在外力作用下拉伸到断裂时，外力对织物所做的功称为断裂功。织物的断裂功越大，织物越坚牢。<br><br>织物的拉伸断裂机理<br><br>机织物：纱线由屈曲转向伸直→纱线和纤维伸长变细<br><br>针织物：圈柱转动、圈弧伸直→纤维伸长<br><br>影响织物拉伸性能的因素<br><br>纤维的性质:&nbsp;低强高伸织物较耐磨。<br><br>纱线的线密度和结构<br><br>经纬密度和织物结构<br><br>经纬密在极限值内，经纬密越大强度越高；在三原组织中，平纹织物的断裂强度和断裂伸长率最大，斜纹次之，缎纹最小。&nbsp;</p></section><section style="display: flex;justify-content: flex-end;align-items: flex-start;"><section class="assistant" style="width: 60%; max-width: 60% !important;" data-width="60%"><img class="assistant" style="vertical-align: inherit; width: 100%; display: block; max-width: 100% !important;" src="https://bcn.135editor.com/files/images/editor_styles/473ac9b99fd76f4a3e303bfb3dd7bf23.png" data-width="100%" draggable="false" data-ratio="0.1441717791411043" data-w="326"></section></section></section></section></section><section class="_135editor" data-role="paragraph"><p style="vertical-align:inherit;"><br></p></section><section class="_135editor" data-role="paragraph"><p style="vertical-align:inherit;"><br></p></section><section class="_135editor" data-role="paragraph"><p style="vertical-align:inherit;"><br></p></section></section>