KEP-7141錦湖歡迎咨詢客戶至上上海君宜化工供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="2.EPDM在液壓制動用軟管和圓密封圈中的應(yīng)用利用EPDM耐制動液（DOT3、DOT4、DOT5（硅油基））的特性，用于液壓制動軟管內(nèi)膠層和制動泵中的密封圈的制作。此類產(chǎn)品接觸的主要介質(zhì)是制動液，使用溫度在-40℃～120℃之間"><meta name="keywords" content="KEP-7141錦湖歡迎咨詢,錦湖"><link rel="canonical" href="http://m.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 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clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="9sszwiu" class="twoCol"><div id="k74xpg7" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/second-_xiangsu/">橡塑</a>?<a href="http://m.cdcfah.com/cp/third-xiangsu_qtflmw/">其他未分類</a>?KEP-7141錦湖歡迎咨詢客戶至上上海君宜化工供應(yīng)</p><div id="4bikrif" class="leftbox clearfix"><h1>KEP-7141錦湖歡迎咨詢客戶至上上海君宜化工供應(yīng)</h1><div id="n4x7u2k" class="proBig"><div id="awvhz2g" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000840754257678/6370008407542576785310893.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ax3h7tv" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000840754257678/6370008407542576785310893.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2ce3jtq" 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-7141錦湖歡迎咨詢,錦湖</p><p><span>***更新：</span>2021-01-14 07:03:12</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="cb4ujse" 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="iwlcjv3" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="o2qplia" class="box"><p><p> 2. EPDM在液壓制動用軟管和圓密封圈中的應(yīng)用 </p> <p> 利用EPDM耐制動液（DOT3、DOT4、DOT5（硅油基））的特性，用于液壓制動軟管內(nèi)膠層和制動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，KEP-7141錦湖歡迎咨詢.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；制動液試驗（將試樣放于制動液中，150℃，70h）其硬度變化應(yīng)為5，KEP-7141錦湖歡迎咨詢，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（125℃，70h），其硬度變化應(yīng)為±5，KEP-7141錦湖歡迎咨詢，拉伸強(qiáng)度變化應(yīng)為±15%，伸長率的下降不能超過15%。 EPＤＭ中乙烯和丙烯含量對其性能有較大影響.KEP-7141錦湖歡迎咨詢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-7141錦湖歡迎咨詢,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000840754257678/6370008407542576785310893.JPG"></div><p> EPDM汽車傳動帶中的應(yīng)用 </p> <p> 近年來，多楔帶在汽車得到普遍應(yīng)用，而發(fā)動機(jī)室的溫度越來越高，有的要求橡膠件能耐１５０℃，瞬間能耐１７０℃．，傳統(tǒng)氯丁橡膠（ＣＲ）顯然達(dá)不到要求。由于ＨＮＢＲ過于昂貴，人們在研究發(fā)現(xiàn)小量的油污并不對發(fā)動機(jī)前端的皮帶造成損害，可使用較廉價耐熱性好多的三元乙丙橡膠（ＥＰＤＭ）作為多楔帶主體橡膠材料。但ＥＰＤＭ耐磨性、高溫抗撕裂和動態(tài)性能不理想，與其它材料粘合差，這些都需要通過改性如添加ＺＤＡ或ＺＤＭＡ和與其它材料并用加以解決。 </p> <p> 汽車Ｖ帶一般用綜合性能優(yōu)異的ＣＲ制造，近年來與上述ＥＰＤＭ多楔帶同樣的原因，開始用ＥＰＤＭ生產(chǎn)。但汽車Ｖ帶傳動受力機(jī)理與多楔帶有很大不同，對壓縮膠的耐曲撓、耐磨性，抗拉體線繩、織物的黏合性以及帶的橫向剛性比多楔帶有更高的要求。ＧＡＴＥＳ公司推出的ＦｌｅｅｔＲｕｎｎｅｒ汽車Ｖ帶（在中國稱為ＥＸＰｏｗｅｒ），據(jù)報道實際使用壽命能達(dá)到４０００００km以上其它性能也優(yōu)于ＣＲ汽車Ｖ帶，尤其是耐高低溫性能，可在-５５~１２０℃正常使用，做到全天候使用。 KEP-7141錦湖歡迎咨詢EPDM改性樹脂，除了EPDM改性PP、PE聚烯烴樹脂外，環(huán)氧化、馬來酸酸化的EPDM還可增韌PBT、PA等極性樹脂。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-7141錦湖歡迎咨詢,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000897572294581/6370008975722945819736005.JPG"></div><p> 素材 </p> <p> 很多試驗表明，膠相結(jié)構(gòu)的粗細(xì)程度對硫化膠物理機(jī)械性能的影響 </p> <p> 不大，但是我們以大小與上述相結(jié)構(gòu)粗細(xì)相當(dāng)?shù)牧Ｗ幼鳛樘盍蟻泶嬉环N橡膠時，則在這個含有相同大小尺寸的填料的填充橡膠中，其物理性能會有很大的差別，這是由于在并用膠中存在連續(xù)相與分散相的膠相結(jié)構(gòu)，在填充橡膠中，也存在著一橡膠為連續(xù)相，包圍著以填料為分散相的結(jié)構(gòu)在純膠并用膠中，分散相和連續(xù)相橡膠，當(dāng)這個硫化膠受外力拉伸變形時，兩相都可以變形，并有一定的結(jié)合力存在，因此，在外界上沒有過分應(yīng)力集中，不易產(chǎn)生相分離現(xiàn)象。雖然膠相中盡管有粗細(xì)之分，但物理機(jī)械性能上差異不大，但在拉伸時，分散相不能變形的填料橡膠中，填料的粒徑增加，應(yīng)力集中越嚴(yán)重，兩相產(chǎn)生分離而導(dǎo)致拉斷強(qiáng)度下降。有些并用膠性能與膠相結(jié)構(gòu)大小尺寸有關(guān)。例如，對抗臭氧腐蝕性能，膠相區(qū)域的大小是有影響的。在丁苯橡膠與三元乙丙橡膠并用中，膠相區(qū)域越小，抗臭氧能力越大，因為膠相區(qū)域小了，丁苯橡膠的裂紋就被三元乙丙橡膠所阻隔，使裂紋不能穿過三元乙丙橡膠，因而**提高了抗臭氧侵蝕的能力。 </p><p> EPDM的黏合二： </p> <p> ＨＡＬＬＳＴＡＲ公司開發(fā)的環(huán)保型黏合劑促進(jìn)劑ＨａＪｌｂｏｎｄＲＸ能夠***增強(qiáng)ＥＰＤＭ與聚酯線的粘合強(qiáng)度。另外添加高３０－４０份白炭黑、使用低門尼粘度ＥＰＤＭ或者降低ＥＰＤＭ配方中促進(jìn)劑用量也可提高粘合性 </p> <p> ＥＰＤＭ與金屬黏合一般采用采膠粘劑法，直接粘接法中二丙烯酸鋅（ZDMＡ）***。研究結(jié)果表明，采用采用ＳＡＲＴＯＭＥＲ的Ｓａｒｅｔ６３３體系膠粘劑用于ＥＰＤＭ與金屬的粘接，并采用過氧化物硫化體系，粘接強(qiáng)度明顯提高，粘接的破壞形式是ＥＰＤＭ硫化膠的內(nèi)聚破壞?；钚灾鷦┑奶砑?，不僅提高了硫化膠的強(qiáng)度，而且還提高了與金屬的粘接強(qiáng)度。加入２份的Ｓａｒｅｔ６３３與鋼黏合，剪切黏合強(qiáng)度從未加的０.５５ＭＰａ提高到３．４４ＭＰａ，加入２０份可提高到ｌ１ＭＰａ。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-7141錦湖歡迎咨詢,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000840446850559/6370008404468505596331236.JPG"></div><p> 8.EPDM粘貼成型EPDM缺少活性基團(tuán)，內(nèi)聚能低，分子鏈段擴(kuò)散性極小，加上膠料容易噴霜，給粘貼成型工藝，尤其是制造多層結(jié)構(gòu)的制品如輪胎胎側(cè)、輸送帶、屋頂材料、膠輥、襯里等帶來較大的困難。一般可以采?。?）保持需粘合表面新鮮不被污染或用化學(xué)溶液或溶劑處理需粘合的表面；2）在需粘合的表面涂膠粘劑；3）提高粘合部位的溫度、壓力和平整度；4）與其它含活性基團(tuán)的高聚物并用；5）在膠料中加5~10份增粘劑；6）適當(dāng)提高增塑劑的用量；7）采用中間層膠或涂膠液等辦法來提高粘合力。其中比較簡單有效地提高粘合力的辦法是提高溫度和壓力。非反應(yīng)性烷基酚醛樹脂增粘效果較好，但同時也使硫化膠物理機(jī)械性能下降，如彈性下降，長久變形增大，硫化速度減慢。提高三元乙丙橡膠的粘合力除加增粘劑外，還可在膠料中加由膠粘劑RE、膠黏劑A和白炭黑或膠黏劑RH、膠黏劑A和白炭黑組成的粘合體系，其中白炭黑要選用沉淀法活性白炭黑。此法的缺點是價格較高。比較簡單有效地提高粘合力的辦法是提高溫度和壓力。KEP-4640E錦湖廠家直銷價</p><p style="text-indent:25px">三元乙丙橡膠在臭氧濃度50×10～，拉伸30%，可達(dá)150h以上不龜裂。KEP-7141錦湖歡迎咨詢</p><p> 2.過氧化物硫化時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）對過氧化物硫化的干擾**?。Ａ肯陆递^小，壓縮長久變形增大較?。?，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。 KEP-7141錦湖歡迎咨詢</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(yù)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(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*****，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://m.cdcfah.com/cp/2840652.html</p></div></div></div></div></div><div id="8i7yvhy" class="page-right twoColRt"><div id="zodkmyk" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="f878gip" class="recomPic likePro"><a 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