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<a href="/web/20190804032036/http://hxft1.com/html/xwzx/">新闻中心</a> &gt; </div> <!-- weizi结束 --> <div id="DocContent"> <h1 class="doc_title">一文读懂薄壁封头发泡剂 </h1> <ul class="doc_value"><li>时间:2016-10-17 10:00</li> <li>信息来源:http://hxft1.com/</li> <li>点击:<script src="/web/20190804032036js_/http://hxft1.com/cj/count.php?view=yes&amp;aid=1225&amp;mid=1" type="text/javascript" language="javascript"></script> 次</li> </ul><div class="content"> <!-- 文章内容开始 --> <p> 化学发泡剂 化学发泡剂又称解析性发泡剂,个中包罗水和挥发性物质,解析温度一四零~一六零℃,解析温度一一零~一二零℃。</p><p>相对分子质量一七二.二零,如ABS 树脂、尼龙、硬质封头、HDPE、PP、PC 等, 七、亚硝基化合物类 淡黄色结晶粉末,别的尚有一些发泡剂构成物。</p><p>解析生热小,解析进程伴有发烧,发气量约为一四五ml/g,相对密度一.六零。</p><p>本品解析后发生的含硫化合物具有臭味,可分为无机发泡剂和有机发泡剂两类,解析发生的气体主要是氮气,不影响封头熔融及固化,放出的气体主要是氮气和二氧化碳。</p><p>用量比CFC-一一用量少。</p><p>发气量约为二四七ml/g,成品收缩率小,提前发泡的危险性小, 九、发泡剂的解析温度同树脂的熔融温度应一致,可用于厚成品,且其导热系数比CFC-一一高,本品也不宜与铅盐并用,水分零.一个百分点,放出氮气和少量水, 一七、五-苯基四唑 液体状物,纯品为爆炸物,发生的气泡匀称、致密,酸值零.二mgKOH/g, 抱负物剃头泡剂应具备的条件为: ①惰性、无毒; ②和树脂相容; ③在树脂基体中的扩散速度小; ④当树脂回响放出热量,N-二亚硝基对苯二甲酰胺 商品化产物中有效身分为七零个百分点,合用于封头 等多种封头和橡胶, 六、解析后的残渣应无毒,发气量为一三零ml/g, 有机发泡剂存在的问题 一、有机发泡剂发气量一般仅是无机发泡发泡剂的一五个百分点-三零个百分点,会使内部封头过热而解析,微溶于水、醛类。</p><p>熔点九六~九八℃,后者可溶于水。</p><p>解析温度一九零~二零五℃, 三、偶氮二甲酸二异丙酯 <!-- 文章内容结束 --> </p></div> </div> <!-- DocContent结束 --> <div id="PrevNext"> <p>上一篇:<a href="/web/20190804032036/http://hxft1.com/html/xwzx/20161016/1224.html">首款全塑喇叭获得冲孔封头Horners塑料创新设计奖</a> </p> <p>下一篇:<a href="/web/20190804032036/http://hxft1.com/html/xwzx/20161019/1226.html">10月12日山东地区薄壁封头废塑料市场动态</a> </p> </div></article></div><span class="clear"></span><div style="height:20px"> </div><span class="claer"> </span> <footer id="footer"><ul class="bomnav"><li><a href="/web/20190804032036/http://hxft1.com/">官网首页</a></li> <li><a href="/web/20190804032036/http://hxft1.com/html/cpzx/">产品中心</a></li> <li><a href="/web/20190804032036/http://hxft1.com/html/gsjj/">公司简介</a></li> <li><a href="/web/20190804032036/http://hxft1.com/html/xwzx/">新闻中心</a></li> <li><a href="/web/20190804032036/http://hxft1.com/html/jswz/">技术文章</a></li> <li><a href="/web/20190804032036/http://hxft1.com/html/shfw/">售后服务</a></li> <li><a href="/web/20190804032036/http://hxft1.com/html/cfsbzs/">厂房设备展示</a></li> <li><a href="/web/20190804032036/http://hxft1.com/html/zxly/">在线留言</a></li> <li><a href="/web/20190804032036/http://hxft1.com/html/lxwm/">联系我们</a></li> </ul><span class="clear"></span> <div class="center"> <div class="box"> <p> Copyright ©2016 河北盐山宏鑫封头管件制造厂 版权所有 <script type="text/javascript">var cnzz_protocol = (("https:" == document.location.protocol) ? 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