錦湖 KEP-282F 來電咨詢上海君宜化工供應-b2b網(wǎng)站_b2b電子商務平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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。乙丙橡膠的接枝改性就是通過在其分子主鏈上接枝含有特征官能團的極性支鏈單體，提高聚烯烴基體與其它極性成分界面的結(jié)合力，使其它極性材料得以均勻分散，提"><meta name="keywords" content="錦湖 KEP-282F,錦湖"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" 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href="http://www.cdcfah.com/cp/third-xiangsu_qtflmw/">其他未分類</a>?錦湖 KEP-282F 來電咨詢上海君宜化工供應</p><div id="zdpbh9d" class="leftbox clearfix"><h1>錦湖 KEP-282F 來電咨詢上海君宜化工供應</h1><div id="brxd7vj" class="proBig"><div id="drnr577" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000897182322001/6370008971823220014206974.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7j7xnbv" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000897182322001/6370008971823220014206974.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="t7zv5zf" 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)品關鍵詞：</span>錦湖 KEP-282F,錦湖</p><p><span>***更新：</span>2020-12-22 04:02:47</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="779nlz7" 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="dp7v97x" class="page-proshow02"><p class="title">詳細說明</p><div id="bpvzdfl" class="box"><p><p style="text-indent:25px">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。乙丙橡膠的接枝改性就是通過在其分子主鏈上接枝含有特征官能團的極性支鏈單體，提高聚烯烴基體與其它極性成分界面的結(jié)合力，使其它極性材料得以均勻分散，提高材料的物理性能及產(chǎn)品的性能穩(wěn)定性，從而改善乙丙橡膠的自粘性、互粘性以及相容性。接枝改性乙丙橡膠主要用于改善乙丙橡膠與其它材料的結(jié)合強度、相容性、填料界面的結(jié)合、制品韌性，錦湖 KEP-282F、沖擊強度，錦湖 KEP-282F，錦湖 KEP-282F、低溫脆性及耐熱性等。乙丙橡膠接枝改性技術(shù)主要包括溶液接枝法、熔融接枝法等，近年來又發(fā)現(xiàn)了電子束輻射接枝和直接溶脹接枝等新的接枝方法，為乙丙橡膠接枝改性提供了更***的技術(shù)可行性。三元乙丙是乙烯、丙烯和非共軛二烯烴的三元共聚物。錦湖 KEP-282F</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="錦湖 KEP-282F,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000897182322001/6370008971823220014206974.JPG"></div><p> 乙丙膠的發(fā)展 </p> <p> 乙丙橡膠是齊格勒——納塔立體有規(guī)催化體系開發(fā)后發(fā)展起來的一種介于通用橡膠和特種橡膠之間的合成橡膠。１９５０年后納塔（Ｎａｔｔａ）等發(fā)現(xiàn)了新型聚合催化劑，于是采用立體有規(guī)性催化劑進行烯烴聚合的研究逐漸開展起來，特別是將石油所大量產(chǎn)生的乙烯、丙烯等烯烴試行聚合，乙烯和丙烯的共聚物特別表現(xiàn)出橡膠彈性。這種聚合物的特點是：在分子排列上很象天然橡膠，但物理性能優(yōu)異，基本原料價廉。它作為合成橡膠于１９５９年首先由意大利蒙特卡蒂尼（Ｍｏｎｔｉｃａｔｉｎｉ）公司的海洛特工廠商品化，這是所謂（二元乙丙橡膠）。這種橡膠主鏈不含雙鍵，是與以往合成橡膠完全不同的一類橡膠。一方面因該橡膠不含雙鍵致使耐熱性、耐天候性、耐臭氧性和耐化學藥品性十分優(yōu)越。另一方面由于不含雙鍵的緣故而不能采用硫黃硫化法使之交聯(lián)，但在１９６２年通過加入第三單體的方法而使它變成可用硫黃硫化的橡膠。膠黏劑用三元乙丙膠錦湖服務商用過氧化物交聯(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 KEP-282F,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000840541317795/6370008405413177956391122.JPG"></div><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)領域，具有其他材料無法替代的作用。</p><p> 乙丙橡膠化學改性 </p> <p> 盡管乙丙橡膠具有耐熱、抗老化、抗沖擊彈性和低溫性能良好等優(yōu)點，但存在強度低、自粘性及互粘性差，與其他膠種并用時，共混相溶性不好等缺點。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。改性乙丙橡膠主要是將乙丙橡膠進行溴化、氯化、磺化、順酐化、馬來酸酐化等。乙丙橡膠還通過接枝方法進行改性，以解決乙丙橡膠的分子主鏈為非極性飽和結(jié)構(gòu)存在的強度低、自粘性及互粘性差、本身著色、印刷、電鍍困難、與其它膠種共混并用時相容性差等性能缺點，從而拓展了乙丙橡膠在許多方面的應用。硫載體硫化膠交聯(lián)密度大，綜合力學性能較好,長久變形大,耐熱老化性能差。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="錦湖 KEP-282F,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000896311876503/6370008963118765035779106.JPG"></div><p> 8.輪胎用EPDM選擇胎側(cè)：輪胎胎側(cè)是輪胎側(cè)向變形比較大的部位,又與大氣直接接觸,要求膠料的耐屈撓性能、耐臭氧性能和耐天候老化性能良好。在胎側(cè)膠配方中添加少量防護蠟可對輪胎胎側(cè)起靜態(tài)防護作用,但在動態(tài)條件下防護作用**減弱,輪胎在使用一段時間后胎側(cè)仍會出現(xiàn)大量龜裂。EPDM具有突出的耐臭氧性能、耐天候性能和耐熱性能，并用少量的EPDM可以***提高胎側(cè)的耐臭氧、耐候性能和耐裂口增長性能。推薦牌號：錦湖KEP5560推薦理由：窄分子量分布，超高的ENB含量，硫化速度快，用于輪胎制品時能夠很好的與NR、SBR等二烯類橡膠共混，保證良好的物理性能內(nèi)胎：因具有良好的氣密性能和耐熱性能而在輪胎內(nèi)胎中得到廣泛應用"但其加工性能較差存在膠料收縮大&滯后生熱大和加油后易粘輥等問題并且老化時分子鏈傾向于斷裂導致使用后期膠料發(fā)粘嚴重時造成內(nèi)外胎粘在一起。乙丙橡膠為非結(jié)晶橡膠，其抗疲勞性能尤其是抗龜裂增長不是很好。與ＳＢＲ相當。錦湖 KEP-282F</p><p style="text-indent:25px">在橡膠制品生產(chǎn)過程中，黏合是一個很重要的課題。錦湖 KEP-282F</p><p> EPDM在汽車暖氣、通風和空調(diào)管中的應用 </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。三層所用材料應根據(jù)實際要求進行選擇。內(nèi)層膠應耐所送介質(zhì)的腐蝕，外層膠應具有機械強度，且適應外部所接觸的環(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%，體積改變應在80%之內(nèi)；熱老化試驗（125℃，70h），其硬度變化應為±5，拉伸強度變化應為±15%，伸長率的下降不能超過40%。 </p> <p> 推薦使用牌號：錦湖KEP960N 錦湖 KEP-282F</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，有組織有體系的公司，堅持于帶領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，也希望未來公司能成為*****，努力為行業(yè)領域的發(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)、服務來贏得市場，我們一直在路上！</p></p><br 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