<section data-role="outer" class="article135" label="edit by 135editor"><section class="_135editor" data-tools="135编辑器" data-id="115551"><section style="margin: 20px auto;"><section><section style="display: flex;justify-content: flex-start;"><section><section class="assistant" style="width: 25px; height: 0px; overflow: hidden;"></section><section class="assistant" style="width: 80px; margin-top: -5px; height: auto;" width="80px" data-width="80px"><img class="assistant" style="vertical-align: inherit; width: 100%; display: block; max-width: 100% !important;" src="https://bcn.135editor.com/files/images/editor_styles/4eadda439f3bc9c97a30ade7585a9434.png" data-width="100%" title="" alt="" draggable="false" data-ratio="0.31" data-w="200"></section></section></section><section style="background-color: rgb(242, 242, 242); margin-top: -10px; padding: 10px 0px;"><section style="padding: 25px 20px 20px;" hm_fix="404:695"><section data-autoskip="1" class="135brush" style="text-align: justify; line-height: 1.75em; letter-spacing: 1.5px; color: rgb(63, 63, 63); background: transparent;"><h1 style="margin-top: 0px; margin-bottom: 0px; outline: 0px; font-size: 16px; max-width: 100%; color: rgb(34, 34, 34); letter-spacing: 0.544px; text-align: left; background: rgb(255, 255, 255); visibility: visible; line-height: 1.75em; 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; word-wrap: break-word !important;"><span style="font-size: 14px; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; letter-spacing: 0px; visibility: visible; font-family: 新宋体; word-wrap: break-word !important;"></span></h1><p style="margin-bottom: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(0, 0, 0); font-size: 15px; letter-spacing: 0.544px; max-inline-size: 100%; cursor: text; caret-color: rgb(255, 0, 0); text-align: left; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, Arial, sans-serif; outline: none 0px !important; word-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; letter-spacing: 1.5px; word-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; word-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(247, 171, 0); word-wrap: break-word !important;"></span></strong></span></p><p style="margin-bottom: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(0, 0, 0); font-size: 15px; letter-spacing: 0.544px; max-inline-size: 100%; cursor: text; text-align: left; line-height: 1.75em; font-family: -apple-system-font, 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; outline: none 0px !important; word-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(247, 171, 0); word-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; word-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; max-inline-size: 100%; cursor: text; caret-color: red; font-size: 14px; outline: none 0px !important; word-wrap: break-word !important;">① 燃烧法靠近火焰：</span></strong></span><span style="margin: 0px; padding: 0px; max-width: 100%; max-inline-size: 100%; cursor: text; caret-color: red; font-size: 14px; color: rgb(63, 63, 63); outline: none 0px !important; word-wrap: break-word !important;">&nbsp;熔融并卷曲；接触火焰：卷曲，融化，燃烧；离开火焰：燃烧，有时自灭；燃烧时气味：毛发燃味；残留物特征：黑色状，基本松脆，但有极细微量硬块。从以上的燃烧特征看，极似真丝等蛋白质纤维。</span></p><p style="margin-bottom: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(0, 0, 0); font-size: 15px; letter-spacing: 0.544px; max-inline-size: 100%; cursor: text; text-align: left; line-height: 1.75em; font-family: -apple-system-font, 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; outline: none 0px !important; word-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; max-width: 100%; max-inline-size: 100%; cursor: text; caret-color: red; font-size: 14px; color: rgb(63, 63, 63); outline: none 0px !important; word-wrap: break-word !important;">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</span></p><p style="margin-bottom: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(0, 0, 0); font-size: 15px; letter-spacing: 0.544px; max-inline-size: 100%; cursor: text; text-align: left; line-height: 1.75em; font-family: -apple-system-font, 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; outline: none 0px !important; word-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(247, 171, 0); word-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; word-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; caret-color: red; word-wrap: break-word !important;">② 红外光谱分析</span></strong><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; caret-color: red; word-wrap: break-word !important;">：</span></span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(63, 63, 63); font-size: 14px; caret-color: red; word-wrap: break-word !important;">从红外光谱分析可以知道牛奶纤维中含有N-H,-CH3,-C≡N,&gt;C=O等基团，牛奶纤维是从牛奶中提取的氨基酸与丙烯腈接枝而成，但其红外图谱既不同于丝、毛等天然蛋白质纤维，也不同于腈纶。&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</span><br style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; word-wrap: break-word !important;"></p><p style="margin-bottom: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(0, 0, 0); font-size: 15px; letter-spacing: 0.544px; max-inline-size: 100%; cursor: text; text-align: left; font-family: -apple-system-font, 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; outline: none 0px !important; word-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(0, 0, 0); font-size: 15px; letter-spacing: 0.544px; max-inline-size: 100%; cursor: text; text-align: left; line-height: 1.75em; font-family: -apple-system-font, 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; outline: none 0px !important; word-wrap: break-word !important;" align="left"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; word-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; color: rgb(247, 171, 0); word-wrap: break-word !important;">③ 熔点法：</span></strong><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; color: rgb(63, 63, 63); word-wrap: break-word !important;">300℃以下无熔点，同麻、棉等无熔点纤维。&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</span></p><p style="margin-bottom: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(0, 0, 0); font-size: 15px; letter-spacing: 0.544px; max-inline-size: 100%; cursor: text; text-align: left; font-family: -apple-system-font, 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; outline: none 0px !important; word-wrap: break-word !important;" align="left"><br></p><p style="margin-bottom: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(0, 0, 0); font-size: 15px; letter-spacing: 0.544px; max-inline-size: 100%; cursor: text; text-align: left; line-height: 1.75em; font-family: -apple-system-font, 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; outline: none 0px !important; word-wrap: break-word !important;" align="left"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgb(247, 171, 0); word-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; word-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; word-wrap: break-word !important;">④ 切片投影法：</span></strong></span><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; font-size: 14px; color: rgb(63, 63, 63); word-wrap: break-word !important;">用哈氏切片器作该纤维的纵向和横截面切片，置于500倍投影仪中观察结果：纵向有隐条纹，边缘光滑；横截面呈圆形，似合成纤维。&nbsp; &nbsp; &nbsp;</span>&nbsp;</p><p style="margin-bottom: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgb(0, 0, 0); font-size: 15px; letter-spacing: 0.544px; max-inline-size: 100%; cursor: text; caret-color: rgb(255, 0, 0); text-align: left; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, Arial, sans-serif; outline: none 0px !important; word-wrap: break-word !important;" align="left"><br></p></section></section><section style="font-size: 12px; color: rgb(225, 206, 170); text-align: right; letter-spacing: 9.5px; padding-right: 15px;"><p style="line-height: 1.75em;"><span style="font-size: 14px; letter-spacing: 1.5px;"><strong class="135brush" data-brushtype="text">TAI HUA</strong></span></p></section></section></section></section></section><section data-role="paragraph" class="_135editor"><p><br></p></section></section>