<section data-role="outer" class="article135" label="edit by 135editor"><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">吸湿现象对纤维性质的影响主要是在纤维重量和密度、纤维体积、纤维力学性质、电性能及热学性能方面。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">1、吸湿对纤维重量和密度的影响</span></strong></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">纤维材料的重量随吸着水分量的增加而成比例地增加。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">纤维的密度随回潮率的增加而呈先增后减的特征，最大密度发生在回潮率为4% ~ 6%。其原因是水分先进入纤维的空隙，质量增加而使体积不变，随后体积膨胀，但由于水的密度小于纤维的密度，故密度下降。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">2、吸湿对纤维体积的影响</span></strong></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">纤维吸湿后体积膨胀，其横向膨胀大而纵向膨胀小。纤维膨胀值一般用直径、长度、截面积和体积的增大率来表示。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; text-align: center; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="center"></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">3、纤维膨胀的各向异性</span></strong></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">fS可以简介地表达纤维分子排列的取向度，尤其是无序区中的分子取向。由于吸湿主要是水分子进入无序区，挤开分子间距，形成分子链的玩去，使纤维形态变粗，而纤维的纵向增长作用不明显，故长度变化很小。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">4、纤维膨胀各向异性的影响</span></strong></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">纤维吸湿膨胀的各向异性会导致织物的变厚、变硬、并产生收缩。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">其原理是：吸湿后纱线变粗，导致纱线在织物中的弯曲程度增大；而纱线的长度基本不变，致使织物收缩，而且即使织物干燥后，这种收缩仍无法回复，这种浸水后的收缩称为“缩水”。织物缩水后会使湿的织物变厚、变硬，变密，不便于洗涤；使干燥后织物变厚、变疏松和变得更有弹性，但尺寸变小、变短。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">5、吸湿对纤维力学性能的影响</span></strong></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">纤维吸湿后，其力学性质如强力、模量、伸长、弹性、刚度等随之变化。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">一般纤维，随着回潮率的增大，其强力、模量、弹性和刚度下降，伸长增加，原因是：大分子链间的相互作用减弱，分子易于构象变化和滑移，故强力、模量下降，伸长增加。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">不吸湿的纤维，一般这类性质不发生变化。分子量较大的棉、麻纤维还会因为吸湿而强度略微上升，原因是：吸湿使大分子受力的不均匀性，由于分子间作用的部分解开与调整，得到改善。当纤维受力时，承力的大分子根数增多，反而使纤维强度增大。纤维吸湿后，纤维的脆性、硬度有所减弱，塑性变形增加，摩擦系数有所增大。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">6、吸湿对电学性能的影响</span></strong></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">纤维材料的吸湿会使纤维的导电性增强，介电常数变大，抗静电性能增强，给纺织加工和正常使用提供方便。但过分吸湿也会带来绕皮辊织造开口不清、烘燥能耗大、纤维易被损伤等加工问题以及穿着不舒适等使用问题。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">7、吸湿对热学性能的影响</span></strong></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">纤维在吸湿是会放出热量，这是由于运动中的水分子被纤维大分子吸附时，水分子会将动能转化成热能而释放，这种放热会使温度上升。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">8、吸湿对光学性能的影响</span></strong></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">由于水分子浸润纤维后会改变纤维结构，因此当纤维回潮率升高时，纤维对光的折射率、透射率和光泽会下降，光的吸收会增加，颜色会变深，光降解和老化加剧等。</span></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(102, 102, 102); font-size: 15px; letter-spacing: 1px; font-family: system-ui, -apple-system, BlinkMacSystemFont, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei UI&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif; overflow-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(0, 0, 0); overflow-wrap: break-word !important;">综上所述，纤维吸湿有利有弊，但赋予纤维适当吸湿利远大于弊，因为可提供实用的舒适性和抗静电性。而分析吸湿后纤维性能的改变，获得更理想的纤维材料，改进加工工艺提供依据。</span></p><section class="_135editor" data-role="paragraph"><p><br></p></section></section>