<section class="_135editor" data-role="paragraph" style="max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">　　答&nbsp; &nbsp;改性涤纶的品种较多，有化学改性和物理改性两类。物理改性主要是采用等离子体表面改性；化学改性主要以增加涤纶分子结构中的非结晶部分，提高这一部分的分子问活动性能，即在聚酯纤维的大分子链中引入不对称的第三单体或极性基团。因此出现了不同改性纤维，如CDP、ECDP和ADP纤维。</span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">　　CDP纤维是在涤纶中引入第三单体--磺酸基，通常为间苯二甲酸磺酸钠，包括α一磺酸基一1，3一苯二甲酸、4磺酸基一1，3一苯二甲酸和5一磺酸基一1，3一苯二甲酸。目前，CDP纤维多数采用问位第三单体，有时也用对位第三单体或同时加入此两种单体。CDP纤维根据所用改性剂的不同又分为高压型（高温型）即CDP纤维和常压型（低温型、易染型）即ECDP纤维。前者是在涤纶中引入第三单体磺酸基团及酸度较小的磷酸基团化合物，可用阳离子染料染色，但染色温度必须在110～130°C。后者除采用上述相同的第三单体外，还应加入第四单体如脂肪族二羧酸、二醇等改变纤维的非结晶区和扩大其分子活动性，同时降低玻璃化温度，因此可用阳离子染料在常压沸染下染色。</span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;">　　涤纶改性纤维除上述酸改性外，还有阴离子染料可染型（anionic dyeable polyester）简称ADP纤维，ADP纤维主要是在聚酯大分子链中引入碱性极性基团，疏松纤维内部结构，从而可使酸性染料上染。</span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p></section><section class="_135editor" data-role="paragraph" id="autoparagraph" style="max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); overflow-wrap: break-word !important; outline: none 0px !important;"></p></section>