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src="http://tyunfile.71360.com/UploadFile/baomeng3/637207539528154297/6067009.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xvl7brx" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>濟寧隔刀膠套電話</p><p><span>***更新：</span>2020-06-28 09:19:30</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="bhhxl9l" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">淄博康杰高分子材料有限公司</a></p><p><span>聯(lián)系人：</span>劉秀娟</p><p><span>郵箱: </span>1330140345@qq.com</p><p><span>電話: </span>15064369736</p><p><span>傳真: </span>0533_3572227</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0533-3572227</p><p><span>地址: </span>309國道湖田街道辦事處商家村東15號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="n9dzflh" class="page-proshow02"><p class="title">詳細說明</p><div id="zflth9f" class="box"><p><p>聚氨酯制品阻燃方法，一種是反應型阻燃劑的應用，在聚氨酯制品原料中，引入具有阻燃作用含磷、鹵素等阻燃性元素的多元醇。由于到場化學反響，這些元素被引入聚合物分子的骨架上，因而使泡沫塑料阻燃作用長期。另一種是在聚氨酯制品中采用添加型阻燃劑。在生產(chǎn)聚氨酯成品的時候，添加不具有反響活性的但具有阻燃作用的物質(zhì)，濟寧隔刀膠套電話。發(fā)泡成型后，阻燃性的物質(zhì)疏散在泡沫塑猜中，到達阻燃的目標，這是應用得早、輕便而又經(jīng)濟的要領(lǐng)，濟寧隔刀膠套電話。添加型阻燃可分為有機添加型阻燃劑和無機添加型阻燃劑。有機添加型阻燃劑重要有三磷酸酯、氯化白臘等，無機添加型阻燃劑重要有氧化銻，濟寧隔刀膠套電話、氫氧化鋁、磷酸氨、硼酸鹽等。<p><br/><p><br/><p><br/><p><br/><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟寧隔刀膠套電話" src="http://tyunfile.71360.com/UploadFile/baomeng3/637207539528154297/6067009.jpg"></div><p style="text-indent:25px">聚氨酯和聚氨酯橡膠是一回事。因為聚氨酯具有良好的回彈性，因此常被稱為聚氨酯橡膠，也被稱為聚氨酯彈性體。聚氨酯是由聚酯（或聚醚）與二異睛酸酯類化合物聚合而成的。耐磨性能好、其次是彈性好、硬度高、耐油、耐溶劑。缺點是耐熱老化性能差。聚氨酯橡膠在汽車、制鞋、機械工業(yè)中的應用**多。聚氨酯應該分類成塑料還是橡膠要看實際情況。聚氨酯是一種很特別的聚合物，它由硬段和軟段組成，硬段部分Tg很低，具有塑料的特性，軟段部分Tg高于室溫很多，具有橡膠的特性。在聚氨酯的合成過程中，通過控制聚合反應，可以調(diào)節(jié)聚合物的硬段和軟段的比例，從而使聚氨酯表現(xiàn)為塑料或橡膠。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟寧隔刀膠套電話" src="http://tyunfile.71360.com/UpLoadFile/2019/6/29/14/636974164570323538_baomeng3_2306823.jpg"></div><p> 聚氨酯特性和優(yōu)點。耐磨。有“耐磨橡膠”的佳稱。特別是在有水、油等潤濕介質(zhì)存在的工作條件下，其耐磨性往往是普通橡膠材料的幾倍到幾十倍。金屬材料如鋼鐵等雖然很堅硬，但并不一定耐磨，如黃河灌溉區(qū)的大型水泵，其過流部件金屬口環(huán)和保護圈經(jīng)過大量泥沙的沖刷，用不了幾百小時就嚴重磨損漏水，而采用聚氨酯彈性體包覆的口環(huán)和保護圈則連續(xù)運行1800小進仍未磨損。其它如碾米用的礱谷機膠輥、選煤用的振動篩篩板、運動場的徑賽跑道、吊車鏟車用的動態(tài)油密封圈、電梯輪和旱冰鞋輪等等也都是聚氨酯彈性體的用武之地。在此需提到的一點是，要提高中低硬度聚氨酯彈性體制件的摩擦系數(shù)，改善在承載負荷下的耐磨性能，可在這類聚氨酯彈性體中添加少量二硫化鋁、石墨或硅油等潤滑劑。 </p></p><br /><p>文章來源地址: 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