晶和硅橡胶热稳定剂纳米二氧化�?参数-价格-中国粉体罐�/title>

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} }); function showliuyan(me, showtype){ if(showtype==0){ //$("#Content").val($("#Content").attr('placeholder')); Content= document.getElementById('PopMsgFrom').Content.getAttribute('placeholder'); document.getElementById('PopMsgFrom').Content.value=Content; } if(showtype==1){ // $("#Content").val($(me).text()); alert($(me).text()); document.getElementById('PopMsgFrom').Content.value=$(me).text(); } $(".fxp").css("display","flex"); } function close_popwin(){ $(".fxp").css("display","none"); // 关闭虚拟电话后的留言� $(".dhxj").css("display","none"); $(".dhxjbox").css("display", "none"); $(".dhxjbox2").css("display", "none"); return false; } </script>  <div class="cpjs"> <div class="cpjs_tab"> <div class="js_cpjj" style="border-bottom: 3px solid #1479d7; color: #1479d7;">产品介绍</div> <div class="js_cxd">创新炸�/div> <div class="js_xgfa">相关方案</div> <div class="js_xgzl">相关资料</div> <div class="js_yhpl">用户评论</div> <div class="js_gsdt">公司动�?/div> <div class="js_wsj">问商宵�/div> </div> <script> $(function(){ // 切换 $(".cpjs_tab a").click(function(){ $(".cpjs_tab a").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(64, 64, 64); font-family: " microsoft="" font-size:="" white-space:="" background-color:=""><span style="font-size: 16px;"><strong>基本信息９�/strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(64, 64, 64); font-family: " microsoft="" font-size:="" white-space:="" background-color:=""><span style="font-size: 16px;">纳米氧化铈，又名纳米二氧化铈，CAS#�?306-38-3</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(64, 64, 64); font-family: " microsoft="" font-size:="" white-space:="" background-color:=""> </p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(64, 64, 64); font-family: " microsoft="" font-size:="" white-space:="" background-color:=""><span style="font-size: 16px;">硅橡胶在高温密闭无氧气状态下主要发生主链热重排降解，即发生解聚反应，使制品变�?或软�?，以致丧失机械强度，失去使用价值。而在高温有氧环境条件下，主要发生聚合物侧基的氧化，形成烷基自由基，而自由基的耦合反应导致密封的交链密度提高，使制品逐渐变硬，乃至发生开�?称为硬化)、�/span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(64, 64, 64); font-family: " microsoft="" font-size:="" white-space:="" background-color:=""><span style="font-size: 16px;">在硅橡胶中加入氧化铈，可以防止聚硅氧烷侧链氧化交联和主链环化降解。在一定的温度范围内能够阻止硅橡胶中由于氧化产生的游离基反应，而且能在空气中的O2的作用下再生；通过吸收了硅橡胶中某些能够催化降解反应的微量酸或碱性物质，从而对硅橡胶起到热稳定作用、�/span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(64, 64, 64); font-family: " microsoft="" font-size:="" white-space:="" background-color:=""><span style="font-size: 16px;">同时，氧化铈特殊的电子结�?f电子层未充满)使其容易形成配合物，所形成的配合物通过阻止橡胶分子的链段运动，抑制了橡胶在溶剂中的溶胀，从而提高了橡胶的耐油性、�/span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(64, 64, 64); font-family: " microsoft="" font-size:="" white-space:="" background-color:=""><span style="font-size: 16px;">青岛科技大学橡塑材料实验室加入氧化铈对硅橡胶力学性能的影响较�?但能提高硅橡胶的耐热�?同时能明显改善其耐油�?氧化铈的较佳用量�?份。通过热分析可�?与未加氧化铈的硅橡胶相比,加入10份氧化铈的硅橡胶在氮气环境下的热分解温度的峰值提�?3�?在空气中**阶段热分解温度的峰值提高了2518�?第二阶段提高�?11�?说明氧化铈对硅橡胶具有热稳定作用、�/span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(64, 64, 64); font-family: " microsoft="" font-size:="" white-space:="" background-color:=""><span style="font-size: 16px;"><strong> </strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(64, 64, 64); font-family: " microsoft="" font-size:="" white-space:="" background-color:=""><span style="font-size: 16px;"><strong>技术指标：</strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(64, 64, 64); font-family: " microsoft="" font-size:="" white-space:="" background-color:=""><span style="font-size: 16px;"><strong> </strong></span></p><table cellpadding="0" cellspacing="0"><tbody><tr class="firstRow"><td width="240" style="vertical-align: top;"><p><span style="font-size: 16px;">项目</span></p></td><td width="264" style="vertical-align: top;"><p><span style="font-size: 16px;">指标</span></p></td></tr><tr><td width="240" style="vertical-align: top;"><p><span style="font-size: 16px;">型号</span></p></td><td width="264" style="vertical-align: top;"><p><span style="font-size: 16px;">VK-Ce50R</span></p></td></tr><tr><td width="240" style="vertical-align: top;"><p><span style="font-size: 16px;">氧化铈（CeO2）（w�?</span></p></td><td width="264" style="vertical-align: top;"><p><span style="font-size: 16px;">99.99</span></p></td></tr><tr><td width="240" style="vertical-align: top;"><p><span style="font-size: 16px;">平均粒径（nm（�/span></p></td><td width="264" style="vertical-align: top;"><p><span style="font-size: 16px;">50nm</span></p></td></tr><tr><td width="240" style="vertical-align: top;"><p><span style="font-size: 16px;">比表面积 (m2/g)</span></p></td><td width="264" style="vertical-align: top;"><p><span style="font-size: 16px;">10-50</span></p></td></tr><tr><td width="240" style="vertical-align: top;"><p><span style="font-size: 16px;">Ln2O3 ≣�/span></p></td><td width="264" style="vertical-align: top;"><p><span style="font-size: 16px;">0.01</span></p></td></tr><tr><td width="240" style="vertical-align: top;"><p><span style="font-size: 16px;">Nd2O3+Pr6O11 ≣�/span></p></td><td width="264" style="vertical-align: top;"><p><span style="font-size: 16px;">0.03</span></p></td></tr><tr><td width="240" style="vertical-align: top;"><p><span style="font-size: 16px;">Fe2O3 ≣�/span></p></td><td width="264" style="vertical-align: top;"><p><span style="font-size: 16px;">0.01</span></p></td></tr><tr><td width="240" style="vertical-align: top;"><p><span style="font-size: 16px;">SiO2 ≣�/span></p></td><td width="264" style="vertical-align: top;"><p><span style="font-size: 16px;">0.02</span></p></td></tr><tr><td width="240" style="vertical-align: top;"><p><span style="font-size: 16px;">CaO ≣�/span></p></td><td width="264" style="vertical-align: top;"><p><span style="font-size: 16px;">0.01</span></p></td></tr><tr><td width="240" style="vertical-align: top;"><p><span style="font-size: 16px;">Al2O3 ≣�/span></p></td><td width="264" style="vertical-align: top;"><p><span style="font-size: 16px;">0.02</span></p></td></tr></tbody></table><p><br/></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 暂无数据� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div style="padding:10px;">暂无相关方案、�/div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); var _index = $(this).index(); $(".xgfa_box").css("display","none"); $(".xgfa_box").eq(_index).css("display","block"); }); }); </script>  <div class="xgzl"> <div class="cxd_tit"><span></span>相关资料</div> <div class="xgzl_box"><div style="padding:10px;">暂无数据、�/div> </div> </div>  <div class="yhpl"> <div class="cxd_tit"><span></span>用户评论</div> <form id="FormComments" action="" method="post" onsubmit="return false"> <input name="SaveProComments" id="SaveProComments" type="hidden" value="yes" /> <input name="ProductID" id="ProductID" type="hidden" value="359184" /> <input name="ProQuality" id="ProQuality" type="hidden" value="10" /> <input name="ProService" id="ProService" type="hidden" value="10" /> <input name="ProUsability" id="ProUsability" type="hidden" value="10" /> <input name="ProCostperformance" id="ProCostperformance" type="hidden" value="10" /> <div class="yhpl_pf"> <div> <p>产品质量</p> <div><span id="Quality" class="stars star10"></span><span id="Quality_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>售后服务</p> <div><span id="Service" class="stars star10"></span><span id="Service_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>易用�?/p> <div><span id="Usability" class="stars star10"></span><span id="Usability_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>性价毓�/p> <div><span id="Costperformance" class="stars star10"></span><span id="Costperformance_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> </div> <div class="yhpl_pftit">评论内容</div> <textarea name="Comments" id="ProComments" onfocus="checklogin();" placeholder="分享产品使用经验/采购评价（不超过500字）">