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上海君宜化工供應(yīng)</p><div id="g3pryah" class="leftbox clearfix"><h1>錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠創(chuàng)新服務(wù) 上海君宜化工供應(yīng)</h1><div id="3n3pm7x" class="proBig"><div id="exzbx8p" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/junyi/637206627878681640/5029381.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ybyf3qs" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/junyi/637206627878681640/5029381.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ckct2uw" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠,錦湖</p><p><span>***更新：</span>2020-12-14 04:03:29</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="v3ubtq3" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海君宜化工銷售中心（有限合伙）</a></p><p><span>聯(lián)系人：</span>蘇剛</p><p><span>郵箱: </span>sg@estrongchem.com</p><p><span>電話: </span>13524989551</p><p><span>傳真: </span>021_60823996 </p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-60826029</p><p><span>地址: </span>上海市浦東新區(qū)五星路676弄萬科御河10棟</p><p>[當(dāng)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="k8tartc" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="tx8htvc" class="box"><p><p> 8. EPDM門窗密封條&機(jī)柜密封條 </p> <p> 門窗密封條的分類：塑鋼門窗密封條，鋁合金門窗密封條，木門密封條，冷 </p> <p> 庫(kù)門密封條，糧庫(kù)門密封條，阻燃門窗密封條，玻璃密封條，自動(dòng)旋轉(zhuǎn)門密封條，建筑門密封條，幕墻密封條等。門窗密封條特點(diǎn)：塑鋼門窗密封條是近年來應(yīng)用較廣的新一代門窗，它較普通門窗密封條有更好的防腐性、耐候性、降噪隔熱效果。塑鋼門窗密封條表面光潔，不但具有優(yōu)異的密封防水性能，還起著美觀裝飾的作用。在選材方面，一般要求較高的廠家都選用三元乙丙橡膠或熱塑性三元乙丙橡膠。 </p> <p> 機(jī)柜密封條：電氣柜密封條是由具有良好彈性和抗壓縮變形、耐老化、臭氧、化學(xué)作用，錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠，錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠、較寬的使用溫度范圍（ -40℃~1 20℃）的三元乙丙橡膠 (EPDM) 橡膠發(fā)泡與密實(shí)復(fù)合而成，內(nèi)含獨(dú)特的金屬夾具和舌形扣，堅(jiān)固耐用 . 在各種電氣柜上起著很關(guān)鍵的作用。硫載體硫化膠交聯(lián)密度大，錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠，綜合力學(xué)性能較好,長(zhǎng)久變形大,耐熱老化性能差。錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠,錦湖" src="http://tyunfile.71360.com/UploadFile/junyi/637206627878681640/5029381.jpg"></div><p> 2.過氧化物硫化時(shí)要加入防老劑才能使硫化中生成的碳．碳鍵的耐熱老化性能充分發(fā)揮。典型的聚合型喹啉防老齊ＵＴＭＱ（ＲＤ）對(duì)過氧化物硫化的干擾**小（模量下降較小，壓縮長(zhǎng)久變形增大較小），但是更強(qiáng)的自由基捕捉型防老劑４４５（二烷基二苯胺）卻可達(dá)到更好的高溫老化后物理性能。防老劑４４５和防老劑增效劑ＭＢＺ搭配使用提供了比較好的空氣老化后綜合性能保持率。ＥＰＤＭ過氧化物交聯(lián)體系中加入含氯聚合物如ＣＲ、ＣＳＭ等可進(jìn)一步提高ＥＰＤＭ硫化膠的抗老化性能。ＣＲ、防老劑４４５和防老劑增效劑Ｍ舊Ｚ三者并用可使ＥＰＤＭ獲得比較好的耐熱效果。 </p> <p> 乙烯基硅烷偶聯(lián)劑Ａ１７２的加入有助于提高ＥＰＤＭ高溫老化后的伸長(zhǎng)率保持率。使用乙烯基硅烷還能使ＥＰＤＭ電纜橡皮膠料在水浸漬期間保持電絕緣性能，乙烯基硅烷偶聯(lián)劑能改善聚合物與填料的結(jié)合強(qiáng)度，防止浸入，從而使ＥＰＤＭ保持了很好的電性能。ＥＰＤＭ配合中，如將ＬＥＰＤＭ替代配方中的石蠟油類軟化劑可進(jìn)一步提高ＥＰＤＭ的高溫耐熱性。錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠用過氧化物交聯(lián)的三元乙丙橡膠可在更苛刻的條件下使用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/8/637025952626016648/6370259526260166489420208.JPG"></div><p> 8.PDM的成型方式壓出膠料壓出性能往往是以膠料容易輸送、壓出速度快、壓出物表面光滑以及形狀、尺寸保持性好為標(biāo)志。三元乙丙橡膠比一般橡膠容易壓出，壓出速度較快，壓出物收縮小，但要控制好膠料的門尼粘度和壓出溫度。乙丙橡膠膠料門尼粘度以40~60為佳。乙烯含量高及分子量分布窄的三元乙丙橡膠壓出工藝性能好。高填充配合的膠料亦有良好的壓出性能，特別是填充高結(jié)構(gòu)爐黑、快壓出爐黑、通用爐黑、半補(bǔ)強(qiáng)爐黑、中粒子熱裂法炭黑和細(xì)粒子熱裂法炭黑等炭黑的膠料壓出表面光滑。白色填料以鈦白、滑石粉、碳酸鈣為比較好，壓出速度超過炭黑膠料。壓延EPDM膠料需要通過壓延制備各種規(guī)格膠片以及在織物上擦膠或貼膠。膠料門尼粘度、壓延速度和溫度均會(huì)影響壓延物質(zhì)量。壓延溫度過低容易產(chǎn)生氣泡，壓延物不平整，收縮大。一般壓延溫度應(yīng)控制如下：上輥90~100℃，中輥90℃左右，下輥90~120℃。模壓三元乙丙橡膠高溫流動(dòng)性較好，故制造模壓制品時(shí)沒有什么困難。但制造結(jié)構(gòu)復(fù)雜的模制品時(shí)，要在模型關(guān)鍵部位鉆些氣眼以排出窩藏的氣體，避免制品產(chǎn)生氣孔缺點(diǎn)或表面發(fā)粘等。用過氧化物硫化的膠料熱撕裂性能差，配方中應(yīng)采用少量硫磺作共交聯(lián)劑以改善其熱撕裂性能。 </p><p style="text-indent:25px">氫化丁腈橡膠(HNBR)是一種綜合性能極好、極具發(fā)展?jié)摿Φ奶胤N橡膠。氫化丁腈橡膠（HNBR）與腈橡膠（NBR）相比，其分子主鏈上的碳-碳雙鍵（C=C）少，化學(xué)結(jié)構(gòu)穩(wěn)定，具有優(yōu)異的耐油、耐腐蝕，耐低溫、耐高溫、耐熱氧老化、耐動(dòng)態(tài)疲勞和耐臭氧性能，可耐150～170℃高溫，其耐寒性能優(yōu)于氟橡膠，耐酸性汽油是普通丁腈橡膠(NBR)的5倍多，耐磨性比普通NBR提高50%以上，熱降解溫度隨著氫化度的提高而提高，比NBR高30～40℃，其優(yōu)異的耐新型制冷劑、耐硫化氫性能更是無以倫比。因而，它作為高性能膠管、膠帶、密封和減震零部件、膠輥、特殊電線電纜等制品的材料，在高鐵、航空、新能源、汽車、石油等重大工業(yè)領(lǐng)域，具有其他材料無法替代的作用。比較簡(jiǎn)單有效地提高粘合力的辦法是提高溫度和壓力。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000892080644815/6370008920806448155069346.JPG"></div><p> 三元乙丙橡膠是乙烯、丙烯和少量的非共軛二烯烴的共聚物，是乙丙橡膠的一種，以EPDM（EthylenepyleneDieneMonomer）表示，因其主鏈?zhǔn)怯苫瘜W(xué)穩(wěn)定的飽和烴組成，只在側(cè)鏈中含有不飽和雙鍵，故其耐臭氧、耐熱、耐候等耐老化性能優(yōu)異，可***用于汽車部件、建筑用防水材料、電線電纜護(hù)套、耐熱膠管、膠帶、汽車密封件等領(lǐng)域。三元乙丙橡膠是乙烯、丙烯以及非共軛二烯烴的三元共聚物，1963年開始商業(yè)化生產(chǎn)。每年全世界的消費(fèi)量是80萬噸。EPDM**主要的特性就是其優(yōu)越的耐氧化、抗臭氧和抗侵蝕的能力。由于三元乙丙橡膠屬于聚烯(PA66)烴家族，它具有極好的硫化特性。在所有橡膠當(dāng)中，EPDM具有比較低的比重。它能吸收大量的填料和油而影響特性不大。因此可以制作成本低廉的橡膠化合物。三元乙丙橡膠的門尼粘度可以反映其分子量的大小，三元乙丙橡膠的門尼粘度范圍通常在20到100之間。機(jī)械性能優(yōu)異三元乙丙膠錦湖歡迎來電</p><p style="text-indent:25px">三元乙丙橡膠具有優(yōu)異的電絕緣性能和耐電暈性，電性能優(yōu)于丁苯橡膠、氯磺化聚乙烯、聚乙烯和交聯(lián)聚乙烯。錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠</p><p> 8. EPDM的塑煉與混煉 </p> <p> 塑煉?：EPDM的塑煉效果差，不象天然橡膠和丁苯橡膠那么易于塑煉。門尼粘度高的三元乙丙橡膠塑煉時(shí)，由于分子鏈斷裂，門尼粘度有所下降。低門尼枯度的乙丙橡膠，只是在塑煉初期門尼粘度稍有下降。因此三元乙丙橡膠不象天然橡膠那樣需要專門進(jìn)行塑拉，只是在混煉前先將三元乙丙橡膠在低溫下稍薄通即可。 </p> <p> 混煉? ：EPDM可采用開煉機(jī)和密煉機(jī)混煉。但用密煉機(jī)混煉填充劑分散效果更好。 </p> <p> 開煉機(jī)混煉 </p> <p> 由于三元乙丙橡膠塑煉效果差，缺乏粘著性，不易“ 吃” 炭黑，不宜包輥。故用開煉機(jī)混煉時(shí)應(yīng)注意以下幾點(diǎn)： </p> <p> 1 ）門尼粘度低的可以用開煉機(jī)混煉，門尼粘度高的用開煉機(jī)混煉比較困難； </p> <p> 2）混煉開始時(shí)采用窄輥尾，先將生膠薄通 1 0 次左右，使其形成連續(xù)的包輥膠后再放寬輥距進(jìn)行加料混煉； </p> <p> 3）輥溫應(yīng)控制在 60℃左右，前輥溫度稍低于后輥； </p> <p> 4）混煉高填充油和高填充劑的膠料時(shí)，可將油和填充劑先混合后再加到膠料 </p> <p> 中去，以改善混煉操作。 </p> <p> 密煉機(jī)混煉 </p> <p> EPDM 密煉機(jī)混煉應(yīng)注意以下幾點(diǎn)： </p> <p> 1 ）容量應(yīng)比正常容量高 15%左右； </p> <p> 2）溫度要高些，以利于乙丙橡膠在高溫下塑化，從而使配合劑易于分散均勻； </p> <p> 3）填充劑用量高的膠料宜采用逆混法，填充劑用量低的膠料用一般混煉法較好。錦湖KUMHO機(jī)械性能優(yōu)異三元乙丙膠</p><p style="text-indent:25px">上海君宜化工銷售中心（有限合伙）位于上海市浦東新區(qū)五星路676弄萬科御河10棟。公司業(yè)務(wù)分為化工原料及產(chǎn)品，橡膠，炭黑，色母粒，彈性體等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司秉持誠(chéng)信為本的經(jīng)營(yíng)理念，在橡塑深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢(shì)，打造橡塑良好品牌。上海君宜化工立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2394872.html</p></div></div></div></div></div><div id="udfmofm" class="page-right twoColRt"><div id="smjvxe8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jxeb3cj" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div 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