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src="/upload/images/202003/15840237235084.jpg" onerror='this.src="/images/nopic.gif"' /></a><p><a href="show-209.htm" style="color:;" target="_blank" ><font style="color:;">橡胶螺杆机筒</font></a></p></li> <li><a class="img-auto" href="show-183.htm" target="_blank"><img alt="PE，PPR、PVC管、ABS、PVC管,铝塑复合管螺杆" src="/upload/images/201705/14958959552428.jpg" onerror='this.src="/images/nopic.gif"' /></a><p><a href="show-183.htm" style="color:;" target="_blank" ><font style="color:;">PE，PPR…</font></a></p></li> <li><a class="img-auto" href="show-182.htm" target="_blank"><img alt="造粒机螺杆" src="/upload/images/201705/14958932403098.jpg" onerror='this.src="/images/nopic.gif"' /></a><p><a href="show-182.htm" style="color:;" target="_blank" ><font style="color:;">造粒机螺杆</font></a></p></li> </ul> </div> </div><!-- /left2 --></div> <div class="box2-right"> <div class="title20"> <h5>业内资讯</h5><span>Industry_News</span> <div class="mianbao"> <br /> <b>Warning</b>: Use of undefined constant nowposition - assumed 'nowposition' (this will throw an Error in a future version of PHP) in <b>/usr/home/hyu1925740001/htdocs/cache/template/zsjiede/#position.php</b> on line <b>5</b><br /> 当前位置 : <a title="舟山市杰德机械有限公司" href="/">舟山市杰德机械有限公司</a> >><a title="新闻栏目" href="list-2.htm">新闻栏目</a> >><a title="业内资讯" href="list-15.htm">业内资讯</a> </div> </div> <div class="box2-content"> <div class="title21">聚氯乙烯树脂的塑化性能</div> <div class="title22">作者：<a>杰德机械</a> 添加时间：2020-10-12 11:50:16 浏览：<script src="/index.php?case=archive&act=view_js&aid=219"></script></div> <div id="content_text"> <p style="line-height: 3em;"><span style="color: rgb(46, 46, 46); font-family: 宋体, Arial; background-color: rgb(255, 255, 255); font-size: 18px;"> <span style="color: rgb(46, 46, 46); font-family: 宋体, Arial; background-color: rgb(255, 255, 255); font-size: 16px;"> 聚氯乙烯树脂的比表面积与塑化时间的关系样品比表面积/m塑化时间/s聚氯乙烯树脂塑化时间直接影响制品的加工及性能。而树脂颗粒的比表面积又是反映颗粒规整性的一个参数，在同等平均粒径条件下，比表面积越小则说明颗粒规整性越好。从上述数据中，我们可以看到比表面积与塑化时间有一定的对应关系，比表面积小的树脂其塑化时间短，反之亦然。结合用转矩流变仪测得的反映聚氯乙烯树脂的塑化性能数据，我们来讨论颗粒形态与加工性能之间的关系。我们又考察了聚氯乙烯树脂颗粒粒径及其分布对塑化性能的影响。</span></span></p><p style="line-height: 3em;"><span style="color: rgb(46, 46, 46); font-family: 宋体, Arial; background-color: rgb(255, 255, 255); font-size: 16px;"> 聚氯乙烯树脂颗粒粒径及其分布与塑化性能的关系样品平均粒径分布宽度三目集中率塑化时间上述测试结果表明，聚氯乙烯树脂颗粒粒径分布与塑化时间有着较为明显的对应关系。粒径分布宽度窄、三目集中率高的树脂其塑化时间较短，而粒径分布宽、三目集中率低的树脂则塑化时间较长。另外，平均粒径的差异对塑化时间有一定的影响。颗粒平均粒径过大（如25样品）的树脂其塑化时间较长。</span></p><p style="line-height: 3em;"><span style="color: rgb(46, 46, 46); font-family: 宋体, Arial; background-color: rgb(255, 255, 255); font-size: 16px;"> 综上所述，衍射散射式激光测粒仪是一种先进的测试手段，它能提供很多与聚合物加工性能有密切关系的颗粒形态、颗粒分布等信息。</span></p></div> <div class="blank30"></div> <div class="blank30"></div> <!--自动调用自定义字段--> <div class="blank20"></div> <div class="blank30"></div> </div> <!-- 投票 --> <script 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