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href="http://www.cdcfah.com/cp/second-_xiangsu/">橡塑</a>?<a href="http://www.cdcfah.com/cp/third-xiangsu_qtflmw/">其他未分類</a>?KEP-110錦湖誠信經(jīng)營信息推薦上海君宜化工供應(yīng)</p><div id="3eiszqn" class="leftbox clearfix"><h1>KEP-110錦湖誠信經(jīng)營信息推薦上海君宜化工供應(yīng)</h1><div id="pegv28n" class="proBig"><div id="gkcmnzw" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000840661965339/6370008406619653396487953.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="yifpb3w" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000840661965339/6370008406619653396487953.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8lxur7z" 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>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>KEP-110錦湖誠信經(jīng)營,錦湖</p><p><span>***更新：</span>2021-01-11 06:02:52</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ynkc8gk" 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: </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="jn8cugi" class="page-proshow02"><p class="title">詳細說明</p><div id="gqn7rt8" class="box"><p><p> EPDM在發(fā)動機冷卻系統(tǒng)和空調(diào)制冷系統(tǒng)密封件中的應(yīng)用 </p> <p> EPDM用于制作發(fā)動機冷卻系統(tǒng)中的密封圈。此類產(chǎn)品接觸的介質(zhì)是防凍液、陽光、水、臭氧，使用溫度在-40℃～125℃，短期耐熱溫度可達135℃。此類零件采用的EPDM，硬度（邵氏A）為60～80（制冷系統(tǒng)中應(yīng)用的圓密封圈為75）；其拉伸強度應(yīng)在10.5MPa以上；斷裂伸長率一般在175%以上；在伸長率50%下的定伸應(yīng)力為1～2MPa；在伸長率**下的定伸應(yīng)力為2～5MPa以上；壓縮變形（150℃，22h）應(yīng)小于20%；其玻璃化轉(zhuǎn)變溫度（TR）比較大為-50℃；耐臭氧老化（50pphm,拉伸20%，72h）應(yīng)無裂紋；對于發(fā)動機冷卻系統(tǒng)中應(yīng)用的密封件應(yīng)進行冷卻液試驗（將試樣放于防凍液中，150℃，166h，試驗壓力約0.4MPa），其硬度變化應(yīng)為±5，拉伸強度變化應(yīng)為±20%，斷裂伸長率變化應(yīng)為-15%～20%，體積改變應(yīng)在±5%；對于空調(diào)系統(tǒng)中應(yīng)用的密封件，應(yīng)進行制冷劑試驗（將試樣放于PAG、ND8制冷劑中，100℃，70h）其硬度變化**多為±5，KEP-110錦湖誠信經(jīng)營，拉伸強度變化**多為±20%，KEP-110錦湖誠信經(jīng)營，斷裂伸長率變化**多為-15%～20%，體積改變應(yīng)在±5%之內(nèi)；熱老化試驗（150℃，70h），其硬度變化應(yīng)為±5，拉伸強度下降應(yīng)小于10%，伸長率的下降不能超過10%，KEP-110錦湖誠信經(jīng)營。為了制備綜合性能更優(yōu)異的橡膠，在技術(shù)上常對乙丙橡膠進行極化改性。KEP-110錦湖誠信經(jīng)營</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-110錦湖誠信經(jīng)營,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000840661965339/6370008406619653396487953.JPG"></div><p> EPDM在汽車暖氣、通風(fēng)和空調(diào)管中的應(yīng)用 </p> <p> 橡膠管一般分三層構(gòu)成，即內(nèi)層、中間加強層（化纖織物或鋼絲）及外層。三層所用材料應(yīng)根據(jù)實際要求進行選擇。內(nèi)層膠應(yīng)耐所送介質(zhì)的腐蝕，外層膠應(yīng)具有機械強度，且適應(yīng)外部所接觸的環(huán)境。因此，內(nèi)、外膠常常不是一種橡膠?；w織物主要用作低壓管，而金屬編織物用于高壓和超高壓管。EPDM已***用于暖氣和通風(fēng)管的內(nèi)外膠層、空調(diào)軟管的外膠層，這是因為該材料具有很好的耐空氣、水、臭氧、陽光老化性和低溫柔軟性。此類零件采用的EPDM，硬度（邵氏A）為70；其拉伸強度應(yīng)在10.5MPa以上；斷裂伸長率一般在300%以上；壓縮殘余變形（100℃，22h）應(yīng)小于40%；其玻璃化轉(zhuǎn)變溫度（TR）比較大為-45℃；耐臭氧老化（50pphm,拉伸20%，72h）應(yīng)無裂紋；IRM902號油試驗（將試樣放于IRM902號油中，100℃，70h）其硬度降低比較大為15，拉伸強度降低比較大為30%，撕裂強度降低比較大為30%，體積改變應(yīng)在80%之內(nèi)；熱老化試驗（125℃，70h），其硬度變化應(yīng)為±5，拉伸強度變化應(yīng)為±15%，伸長率的下降不能超過40%。 </p> <p> 推薦使用牌號：錦湖KEP960N KEP-282F錦湖服務(wù)商接枝改性是改善乙丙橡膠性能缺點的重要途徑之一，也為制備綜合性能更優(yōu)異的改性乙丙橡膠提供了可能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-110錦湖誠信經(jīng)營,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000895908436244/6370008959084362447823332.JPG"></div><p> 錦湖Polychem是由韓國合成橡膠工業(yè)（株）[現(xiàn)錦湖石油化學(xué)（株）]與日本合成橡膠（株）[現(xiàn)JSR（株）]的合作而成立。于1988年成功引進美國埃克森化工（ExxonChemical）的先進技術(shù)生產(chǎn)，2015年第四條生產(chǎn)線建成后，產(chǎn)量達22萬噸每年，已成為亞洲***位，世界第三位EPDM制造商。錦湖POLYCHEM位于麗水石油化學(xué)國家產(chǎn)業(yè)區(qū)，是韓國首批EPDMMaker，錦湖乙丙膠的生產(chǎn)技術(shù)采用的是傳統(tǒng)的齊格勒-納塔（Z-N）催化體系，具有牌號完善，選擇性強，性價比高產(chǎn)品質(zhì)量穩(wěn)定，產(chǎn)能高等優(yōu)勢。錦湖POLYCHEM生產(chǎn)的EP(D)M是主要用于汽車配件領(lǐng)域的高性能特殊合成橡膠，耐熱性、耐臭氧性、耐化學(xué)性均很***。既比其他橡膠重量輕，又可以實現(xiàn)高度填充，經(jīng)濟性好，不僅可用于車身密封輪胎和密封管以及軟管，還可用于電線和建筑輔材等。 </p><p> 據(jù)MarketsandMarkets報道預(yù)計，2020年全球三元乙丙橡膠(EPDM)市場規(guī)模達72億美元，在2015-2020年之間以5．4％的復(fù)合年增長率增長。EPDM主要用于汽車、建筑與施工、輪胎與管、電線與電纜和潤滑添加劑。該需求將不斷地受到增長的終端用戶產(chǎn)業(yè)、彈性體的需求增加、發(fā)展策略提升及擴張和收購活動增加的推動。估計潤滑添加劑是增長**快的應(yīng)用。EPDM還可被用作潤滑劑中的黏度改進劑(Ⅵ)。汽車產(chǎn)業(yè)是全球EPDM市場中比較大的終端用途產(chǎn)業(yè)細分市場。全球EPDM在汽車產(chǎn)業(yè)中的消費主要是由于其高耐熱性和耐氣候性及振動吸收性能。由于這些性能，EPDM還用于軟管、引擎蓋下的機械產(chǎn)品、車身密封膠、擋風(fēng)雨條、傳送帶、引擎支架、剎車配件、雨刮器等。在汽車產(chǎn)業(yè)中EPDM市場也受到了新興經(jīng)濟體生活標(biāo)準(zhǔn)提高的推動。據(jù)報道，亞太地區(qū)是比較大的EPDM市場，包括中國、日本、馬來西亞、印度、中國臺灣和韓國。2014年亞太地區(qū)市場大約占全球EPDM市場的40％，且在2020年之前預(yù)計這個地區(qū)仍將主導(dǎo)市場。預(yù)計在2020年之前亞太地區(qū)還將是比較大的區(qū)域市場，以高投資于汽車、塑料改性和建筑行業(yè)等應(yīng)用。并且預(yù)計亞太地區(qū)將是增長**快的EPDM市場。這種高增長歸因于不斷增長的汽車市場和中國國內(nèi)需求增加三元乙丙橡膠的分子量及分布可以通過凝膠滲透色譜法使用二氯苯作為溶劑在高溫下（150℃）測量而得。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-110錦湖誠信經(jīng)營,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000898065169874/6370008980651698743415527.JPG"></div><p> EPDM共混改性一： </p> <p> ＥＰＤＭ的硫化速度較慢，耐油性及粘合性較差，若使其與橡膠如天然橡膠（ＮＲ）、丁腈橡膠（ＮＢＲ）、丁基橡膠（ＩＩＲ）、甲基乙烯基硅橡膠（ＶＭＱ）、氯磺化聚乙烯（ＣＳＭ）、氯丁橡膠（ｃＲ）、氯化聚乙烯（ＣＰＥ）等并用改性，可以很好地綜合不同種類橡膠的優(yōu)異性能，改善各自的不足。一方面，ＥＰＤＭ可以改善其他膠種的耐熱性、耐低溫性、耐臭氧及耐水蒸氣性能等；另一方面，又會使ＥＰＤＭ本身的加工性、耐油性和粘合性得到提高。因此，ＥＰＤＭ與其他橡膠共混改性，可制造出許多具有優(yōu)異性能的新材料。ＥＰＤＭ具有飽和主鏈和低不飽和側(cè)鏈，與塑料和其他橡膠共混、動態(tài)硫化改性，可制造多種性能優(yōu)異的新型材料。典型共混物是與聚丙烯（ＰＰ）共混動態(tài)硫化改性制成全硫化ＴＰＶ。乙丙橡膠綜合物理機械性能介于天然膠與丁苯膠之間，與丁基橡膠類似。KEP-110錦湖誠信經(jīng)營</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。KEP-110錦湖誠信經(jīng)營</p><p> 2. 分子量對三元乙丙膠性能的影響： </p> <p> 三元乙丙橡膠的分子量及分布可以通過凝膠滲透色譜法使用二氯苯作為溶劑在高溫下（150℃）測量而得。分子量分布通常被稱為是重量平均分子量與數(shù)量平均分子量的比例。根據(jù)普通和高度支化的結(jié)構(gòu)，這個值通常在2到5之間變化。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。 </p> <p> 增加三元乙丙橡膠的分子量，正面影響有：更高的拉伸和撕裂強度，在高溫情況下更高的生坯強度，能夠吸收更多的油和填料（低成本）。但是過高的分子量也會使得橡膠的流動性能變差，這意味橡膠后續(xù)加工會更加的困難，比如更難混煉，更難充模，更難擠出等等，隨著分子量分布的增加，正面的影響有：增加的混煉和碾磨加工性。但是，較窄的分子量分布可以改進硫化速度，硫化狀態(tài)以及注塑行為。 KEP-110錦湖誠信經(jīng)營</p><p style="text-indent:25px">上海君宜化工銷售中心（有限合伙）是一家有著雄厚實力背景、信譽可靠、勵精圖治、展望未來、有夢想有目標(biāo)，有組織有體系的公司，堅持于帶領(lǐng)員工在未來的道路上大放光明，攜手共畫藍圖，在上海市市轄區(qū)等地區(qū)的橡塑行業(yè)中積累了大批忠誠的客戶粉絲源，也收獲了良好的用戶口碑，為公司的發(fā)展奠定的良好的行業(yè)基礎(chǔ)，也希望未來公司能成為*****，努力為行業(yè)領(lǐng)域的發(fā)展奉獻出自己的一份力量，我們相信精益求精的工作態(tài)度和不斷的完善創(chuàng)新理念以及自強不息，斗志昂揚的的企業(yè)精神將**上海君宜化工和您一起攜手步入輝煌，共創(chuàng)佳績，一直以來，公司貫徹執(zhí)行科學(xué)管理、創(chuàng)新發(fā)展、誠實守信的方針，員工精誠努力，協(xié)同奮取，以品質(zhì)、服務(wù)來贏得市場，我們一直在路上！</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2796522.html</p></div></div></div></div></div><div id="gasurol" class="page-right twoColRt"><div id="h23w2s2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="oia3g2x" class="recomPic likePro"><a 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