--> 塑料助剂的选择 - 江苏塑业股份有限公司 < id="web" class="g_web " style='0'> < class="webTopTable"> < id="webTop" class="webTop"> < id='localer' style='text-align:center; white-space: nowrap;top:24px;bottom:auto;left:842px;right:auto;' class='localer' _moduleStyle='7'> < class='J_localerPanel localerPanel_7'> < class="absTopTable" > < id="absTopForms" class="forms sideForms absForms"> < style="position:absolute;"> < class="webNavTable"> < id="webNav" class="webNav"> < id='nav' class='nav nav2 fixedNavPos navStyle navStyle121'> < class='navMainContent'> 葡京赌盘网址21点技巧平台澳门最大赌场发展历程环境及质量管理体系邓白氏注册档案   Pemaron   Autron   Ventron   coloron   人才招聘   在线应聘 < class="webHeaderTable J_webHeaderTable " id="webHeaderTable"> < id="webHeaderContent" class="J_webHeaderTable webHeaderTd fk-moduleZoneWrap web_header_td J_webHeaderTd"> < id="fk-webHeaderZone" class="elemZone elemZoneModule J_moduleZone fk-webHeaderZone fk-moduleZone forms sideForms"> < class="fk-moduleZoneBg fk-elemZoneBg J_zoneContentBg elemZoneBg"> < id="webHeader" class="webHeader"> < class='headerTable'> < class='headerCusLeft'> < class='headerCusMiddle'> < class='headerNav '> < class="headerCusRight"> < id="webHeaderContentBg" class="J_webHeaderTable webHeaderTd web_header_td J_webHeaderTd webHeaderContentBg"> < class="webBannerTable J_webBannerTable"> < class="fk-moduleZoneWrap"> < id="webBanner" class="webBanner"> < class="bannerTable"> < class="bannerLeft"> < class="bannerCenter"> < style="visibility:hidden;" class="fk-inBannerListZone-tmp forms"> < class="bannerRight"> < class="absMiddleTable"> < id="absForms" class="forms sideForms absForms"> < id="fullmeasureTopForms" class="fullmeasureContainer forms fk-fullmeasureForms fullmeasureForms fullmeasureTopForms" style='display:none'> < id="webContainerTable" class="webContainerTable" > < id="webContainer" class="webContainer"> < id="container" class="container"> < class="containerTop"> < class="left"> < class="center"> < class="right"> < class="containerMiddle"> < id="containerMiddleLeft" class="containerMiddleLeft"> < class="containerMiddleCenter"> < id="containerMiddleCenterTop" class="containerMiddleCenterTop"> < id="containerForms" class="containerForms"> < id="topForms" class="column forms mainForms topForms" style='display:none'>
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塑料助剂的选择

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1 按改性目标选助剂
       按要改性目标选择合适的助剂,加入助剂应能充分发挥其功效,并达到要求的指标。以下是为了使塑料具有某种特殊性能需要加入的助剂,助剂选择的参考意见为:
       (1)增韧—添加弹性体、热塑性弹性体和刚性增韧材料;
       (2)增强—添加玻璃纤维、碳纤维、晶须和有机纤维;  
       (3)阻燃—添加溴类(普通溴系和环保溴系)、磷类、氮类、氮/磷复合类膨胀型阻燃剂、三氧化二锑、水合金属氧化物等各类阻燃剂;
      (4)导电—添加碳类(炭黑、石墨、碳纤维、碳纳米管)、金属纤维和粉,金属氧化物;
       (5)磁性—添加铁氧体磁粉,稀土磁粉包括钐钴类(SmCo5或Sm2Co17)、钕铁硼类(NdFeB)、钐铁氮类(SmFeN),铝镍钴类磁粉三大类;
       (6)导热—添加金属纤维和粉末,金属氧化物、氮化物和碳化物,碳类材料如炭黑、碳纤维、石墨和碳纳米管,半导体材料如硅、硼;
       (8)耐热—添加玻璃纤维、无机填料、耐热剂如取代马来酰亚胺类和β晶型成核剂;
       (9)透明—添加成核剂,对PP而言,α晶型成核剂的山梨醇衍生物系列产品Millad 3988效果好;
       (10)耐磨—添加PTFE、石墨、二硫化钼、铜粉等;
       (11)电绝缘—添加煅烧高岭土等;
       (12)绝热—添加云母、蒙脱土、石英等。
2 助剂与树脂要匹配
       助剂选择时,要有针对性,应选择对树脂改性效果好的品种。例如:
       (1)红磷阻燃剂适用于PA、聚对苯二甲酸丁酯(PBT)、聚对苯二甲酸乙酯(PET)。
       (2)氮系阻燃剂适用于含氧类工程塑料,如PA、PBT、PET等。
       (3)玻璃纤维对结晶型塑料的耐热改性效果好,对非结晶型塑料效果差。
       (4)炭黑在结晶型树脂中效果好。

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