KEP-370F錦湖誠信經(jīng)營服務(wù)為先上海君宜化工供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="2.EPDM分子結(jié)構(gòu)和特性;三元乙丙是乙烯、丙烯和非共軛二烯烴的三元共聚物。二烯烴具有特殊的結(jié)構(gòu)，只有兩鍵之一的才能共聚，不飽和的雙鍵主要是作為交鏈處。另一個(gè)不飽和的不會(huì)成為聚合物主鏈，只會(huì)成為邊側(cè)鏈，KEP-370F錦湖誠信經(jīng)營。三元乙丙"><meta name="keywords" content="KEP-370F錦湖誠信經(jīng)營,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 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class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a 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-370F錦湖誠信經(jīng)營服務(wù)為先上海君宜化工供應(yīng)</p><div id="et7f8as" class="leftbox clearfix"><h1>KEP-370F錦湖誠信經(jīng)營服務(wù)為先上海君宜化工供應(yīng)</h1><div id="c2k224w" class="proBig"><div id="2mgs7ub" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000842640155917/6370008426401559178327294.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bf77guq" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000842640155917/6370008426401559178327294.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="n3hwam3" 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>KEP-370F錦湖誠信經(jīng)營,錦湖</p><p><span>***更新：</span>2021-01-23 09:03:58</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="cbikrik" 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="s78edpw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="nh2i227" class="box"><p><p> 2. EPDM分子結(jié)構(gòu)和特性; </p> <p> 三元乙丙是乙烯、丙烯和非共軛二烯烴的三元共聚物。二烯烴具有特殊的結(jié)構(gòu)，只有兩鍵之一的才能共聚，不飽和的雙鍵主要是作為交鏈處。另一個(gè)不飽和的不會(huì)成為聚合物主鏈，只會(huì)成為邊側(cè)鏈，KEP-370F錦湖誠信經(jīng)營。三元乙丙的主要聚合物鏈?zhǔn)峭耆柡偷?。這個(gè)特性使得三元乙丙可以抵抗熱，光，氧氣，尤其是臭氧，KEP-370F錦湖誠信經(jīng)營。三元乙丙本質(zhì)上是無極性的，對(duì)極性溶液和化學(xué)物具有抗性，吸水率低，具有良好的絕緣特性。 </p> <p> 主鏈上沒有雙鍵—耐臭氧耐候性(光，紫外線)，優(yōu)異的耐熱氧老化性(可達(dá) 160℃) </p> <p> 天然碳?xì)錁渲蜏厝犴g性好，優(yōu)異的電性能和耐化學(xué)性能 </p> <p> 低密度高填充—降低膠料成本 </p> <p> 組分范圍寬泛—乙烯含量從低到高，ENB 從 0 到高，分子量范圍寬泛 </p> <p> 在三元乙丙生產(chǎn)過程中，KEP-370F錦湖誠信經(jīng)營，通過改變?nèi)龁误w的數(shù)量，乙烯丙烯比，分子量及其分布以及硫化的方法可以調(diào)整其特性。三元乙丙橡膠(EPDM)卷材是目前世界公認(rèn)的性能比較好異的防水材料。KEP-370F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-370F錦湖誠信經(jīng)營,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000842640155917/6370008426401559178327294.JPG"></div><p style="text-indent:25px">Ａ.Ｅｓｔｒｉｎ等用馬來酸酐聚丁二烯（ＰＢＤＭＡ）處理芳綸、尼龍聚酯和棉等纖維，結(jié)果**提搞這些短纖維在ＥＰＤＭ的黏合作用。岑蘭等探討了幾種硅烷偶聯(lián)劑預(yù)處理棉短纖維（ＳＣＦ）種類、取向和用量對(duì)短纖維／橡膠復(fù)合材料（ＳＦＲＣ）力學(xué)性能和老化性能的影響。研究結(jié)果表明：與未處理ＳＣＦ相比，硅烷偶聯(lián)劑預(yù)處理的ＳＣＦ．具有更佳的補(bǔ)強(qiáng)性能，ＳＦＲＣ的拉伸強(qiáng)度、撕裂強(qiáng)度和扯斷伸長率更高。其中，硅烷偶聯(lián)劑ＫＨ-５７０（３-氨丙基三乙氧基硅烷）和ＫＨ-５８０（３-巰丙基三乙氧基硅烷）處理ＳＣＦ對(duì)ＥＰＤＭ的增***果更為明顯。吳衛(wèi)東等比較了表面特殊處理、常規(guī)此理和未處理的尼龍纖維對(duì)ＥＰＤＭ／尼龍復(fù)合材料性能影響，結(jié)果表明，經(jīng)表面特殊處理的ＳＦＲＣ屈服強(qiáng)度**提高，拉伸斷裂后纖維表面存在一定厚度且柔韌的界面過渡薄層。KEP-9590錦湖服務(wù)商第三二烯烴類型的單體是通過乙烯和丙烯的共聚，在聚合物中產(chǎn)生不飽和，以便實(shí)現(xiàn)硫化。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-370F錦湖誠信經(jīng)營,錦湖" src="http://tyunfile.71360.com/UploadFile/junyi/637206627884931640/178608.jpg"></div><p> 2.PDM第三單體的選擇第三二烯烴類型的單體是通過乙烯和丙烯的共聚，在聚合物中產(chǎn)生不飽和，以便實(shí)現(xiàn)硫化。第三單體的選擇必須滿足以下要求：**多兩鍵：一個(gè)可聚合，一個(gè)可硫化反應(yīng)類似于兩種基本的單體主鍵隨機(jī)聚合產(chǎn)生均勻分布足夠的揮發(fā)性，便于從聚合物中除去**終聚合物硫化速度合適目前工業(yè)化生產(chǎn)三元乙丙橡膠用第三單體只有如下三種：乙叉降冰片烯（ENB）雙環(huán)戊二烯（DCPD）1，4-己二烯（HD）三元乙丙生產(chǎn)中主要是用ENB和DCPD。三元乙丙中*****使用的是ENB，它比DCPD產(chǎn)品硫化要快得多。在相同的聚合條件下，第三單體的本質(zhì)影響著長鏈支化，按以下順序遞增：EPM<EPDM(ENB)<EPDM(DCPD)三元乙丙其他的受二烯烴第三單體影響的還有：ENB－快速硫化，高拉伸強(qiáng)度，低長久形變DCPD－防焦性，低長久應(yīng)變，低成本隨著二烯烴第三單體的增加，將會(huì)有下列影響發(fā)生：更快硫化率，更低的壓縮形變，高定伸，促進(jìn)劑選擇的多樣性，減少的防焦性和延展，更高的聚合物成本。 </p><p> EPDM用于制作發(fā)動(dòng)機(jī)用水管， </p> <p> 其內(nèi)、外膠層均采用EPDM材料制造。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(dá)150℃。 </p> <p> 此類零件采用的EPDM，硬度（邵氏A）為65；其拉伸強(qiáng)度應(yīng)在10.5MPa以上；斷裂伸長率在300%以上；在伸長率50%下的定伸應(yīng)力為1～2MPa；伸長率**下的定伸應(yīng)力為2～4.5MPa以上；壓縮殘余變形（100℃，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；冷卻液試驗(yàn)（將試樣放于防凍液中，150℃，166h，試驗(yàn)壓力約0.4MPa），其硬度變化應(yīng)為±5，拉伸強(qiáng)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%；熱老化試驗(yàn)（150℃，70h），其硬度變化應(yīng)為±5，拉伸強(qiáng)度下降應(yīng)小于10%，伸長率的下降不能超過10%。三元乙丙橡膠(EPDM)常用依據(jù)不同的性能要求可使用硫黃、過氧化物及樹脂硫化。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-370F錦湖誠信經(jīng)營,錦湖" src="http://tyunfile.71360.com/UploadFile/junyi/637206627879736328/3556973.jpg"></div><p> 2. EPDM在液壓制動(dòng)用軟管和圓密封圈中的應(yīng)用 </p> <p> 利用EPDM耐制動(dòng)液（DOT3、DOT4、DOT5（硅油基））的特性，用于液壓制動(dòng)軟管內(nèi)膠層和制動(dòng)泵中的密封圈的制作。此類產(chǎn)品接觸的主要介質(zhì)是制動(dòng)液，使用溫度在-40℃～120℃之間，短期耐熱溫度可達(dá)135℃。此類零件采用的EPDM，硬度（邵氏A為80其拉伸強(qiáng)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2.5～4MPa；在伸長率**下的定伸應(yīng)力為8MPa以上；壓縮變形（100℃，22h）應(yīng)小于40%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；制動(dòng)液試驗(yàn)（將試樣放于制動(dòng)液中，150℃，70h）其硬度變化應(yīng)為5，拉伸強(qiáng)度變化應(yīng)為±20%，伸長率變化應(yīng)為-15%～20%，體積改變應(yīng)在±5%；熱化試驗(yàn)（125℃，70h），其硬度變化應(yīng)為±5，拉伸強(qiáng)度變化應(yīng)為±15%，伸長率的下降不能超過15%。三元乙丙橡膠制品在120℃下可長期使用，在150～200℃下可短暫或間歇使用。KEP-370F錦湖誠信經(jīng)營</p><p style="text-indent:25px">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。KEP-370F錦湖誠信經(jīng)營</p><p> EPDM的黏合一： </p> <p> 在橡膠制品生產(chǎn)過程中，黏合是一個(gè)很重要的課題。它包括橡膠與橡膠、橡膠與金屬和橡膠與纖維織物等之間黏合。乙丙橡膠由于表面缺乏活性，與其它材料粘合困難，尤其是一些在高溫、高負(fù)荷動(dòng)態(tài)狀態(tài)下使用的制品如汽車傳動(dòng)帶、空氣彈簧等用常規(guī)的粘合處理方法如ＲＦＬ和“間甲白”直黏體系等，很難達(dá)到滿意的黏合效果，需用特殊或幾種方法配合使用。 </p> <p> ＥＰＤＭ與纖維織物黏合中，纖維表面處理用ＲＦＬ浸漬液中的膠乳一般使用ＣＳＭ、ＢＲ和ＥＰＤＭ等，這在一般靜態(tài)使用的橡膠制品尚可，但高動(dòng)態(tài)使用時(shí)，其黏合強(qiáng)度顯得不足，解決辦法有：①用特殊膠乳。用高反應(yīng)性的馬來酸酐聚二丁烯膠乳處理，可**提高尼龍、聚酯和芳綸等纖維與ＥＰＤＭ黏合強(qiáng)度。 KEP-370F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(shí)力背景、信譽(yù)可靠、勵(lì)精圖治、展望未來、有夢想有目標(biāo)，有組織有體系的公司，堅(jiān)持于帶領(lǐng)員工在未來的道路上大放光明，攜手共畫藍(lán)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行業(yè)的翹楚，努力為行業(yè)領(lǐng)域的發(fā)展奉獻(xiàn)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(qiáng)不息，斗志昂揚(yáng)的的企業(yè)精神將引領(lǐng)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(shí)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/2974994.html</p></div></div></div></div></div><div id="slikmtq" class="page-right twoColRt"><div id="xhjlspb" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="crjgx8z" class="recomPic 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