KEP-282F錦湖誠(chéng)信經(jīng)營(yíng) 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="EPDM汽車傳動(dòng)帶中的應(yīng)用近年來(lái)，多楔帶在汽車得到普遍應(yīng)用，而發(fā)動(dòng)機(jī)室的溫度越來(lái)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(guò)于昂貴，KEP-282F錦湖誠(chéng)信經(jīng)營(yíng)，人們?cè)谘芯堪l(fā)現(xiàn)小量"><meta name="keywords" content="KEP-282F錦湖誠(chéng)信經(jīng)營(yíng),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 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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-282F錦湖誠(chéng)信經(jīng)營(yíng) 服務(wù)為先上海君宜化工供應(yīng)</p><div id="fz7fcmy" class="leftbox clearfix"><h1>KEP-282F錦湖誠(chéng)信經(jīng)營(yíng) 服務(wù)為先上海君宜化工供應(yīng)</h1><div id="3p37qxe" class="proBig"><div id="3wlelsz" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000841714986333/6370008417149863335129123.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="onkhjl3" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000841714986333/6370008417149863335129123.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="u77rtvx" 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-282F錦湖誠(chéng)信經(jīng)營(yíng),錦湖</p><p><span>***更新：</span>2021-01-25 08:03:02</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="vkh7fho" 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(wàn)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="jiacjqc" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="nct2lnz" class="box"><p><p> EPDM汽車傳動(dòng)帶中的應(yīng)用 </p> <p> 近年來(lái)，多楔帶在汽車得到普遍應(yīng)用，而發(fā)動(dòng)機(jī)室的溫度越來(lái)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(guò)于昂貴，KEP-282F錦湖誠(chéng)信經(jīng)營(yíng)，人們?cè)谘芯堪l(fā)現(xiàn)小量的油污并不對(duì)發(fā)動(dòng)機(jī)前端的皮帶造成損害，可使用較廉價(jià)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(dòng)態(tài)性能不理想，與其它材料粘合差，這些都需要通過(guò)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(lái)與上述ＥＰＤＭ多楔帶同樣的原因，開(kāi)始用ＥＰＤＭ生產(chǎn)。但汽車Ｖ帶傳動(dòng)受力機(jī)理與多楔帶有很大不同，對(duì)壓縮膠的耐曲撓、耐磨性，KEP-282F錦湖誠(chéng)信經(jīng)營(yíng)，抗拉體線繩，KEP-282F錦湖誠(chéng)信經(jīng)營(yíng)、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(guó)稱為ＥＸＰｏｗｅｒ），據(jù)報(bào)道實(shí)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。加入適宜防老劑可提高其使用溫度。KEP-282F錦湖誠(chéng)信經(jīng)營(yíng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-282F錦湖誠(chéng)信經(jīng)營(yíng),錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000841714986333/6370008417149863335129123.JPG"></div><p> 聚烯烴類熱塑彈性體幾年來(lái)新材料不斷涌現(xiàn)，EPDM/PP共混型熱塑性彈性體(TPE）就是極具發(fā)展?jié)摿Φ男虏牧稀PDM/PPTPE具有優(yōu)異的耐候、耐臭氧、耐紫外線及良好的耐高溫、耐沖擊性能，其耐油和耐溶劑性能與氯丁橡膠相當(dāng)，可以用普通熱塑性塑料加工設(shè)備進(jìn)行加工、具有加工方便、成本低、可連續(xù)生產(chǎn)，并可回收再用等優(yōu)點(diǎn)，廣泛應(yīng)用于汽車、電線電纜建筑、家用電器、機(jī)械、運(yùn)動(dòng)器械等領(lǐng)域5.油品添加劑三元乙丙橡膠具有較高的增稠能力有著較好的抗剪切穩(wěn)定性及耐低溫和抗氧化性能。是制備多級(jí)發(fā)動(dòng)機(jī)齒輪油的主要添加劑之西方發(fā)達(dá)國(guó)家油品添加劑6.聚合物改性EPDM改性樹(shù)脂，除了EPDM改性PP、PE聚烯烴樹(shù)脂外，環(huán)氧化、馬來(lái)酸酸化的EPDM還可增韌PBT、PA等極性樹(shù)脂。在二烯烴橡膠中加人一定比例的EPDM可***提高硫化膠的耐老化性能如在SBR中加入一定EPDM后，可使SBR耐臭氧龜裂性能提高24倍。EPDM與硅橡膠有一定的相容性，用EPDM改性后的硅橡膠性能明顯提高可廣泛應(yīng)用于許多領(lǐng)域。EPDM與NBR共混物。EPDM與NBR分子極性差別很大，相容性很差，共混時(shí)需要添加相容劑提高二者的相容性。添加5份經(jīng)琉基官能化的乙烯-乙酸乙烯共聚物（EV）可使NBR/EDPM（質(zhì)量比為70/30）共混物的力學(xué)性能***提高。 KEP-282F錦湖歡迎來(lái)電乙丙橡膠缺點(diǎn)是在室溫下粘度不好，給加工制造帶來(lái)困難。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-282F錦湖誠(chéng)信經(jīng)營(yíng),錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000841433872982/6370008414338729827523294.JPG"></div><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(mén)尼粘度高的三元乙丙橡膠塑煉時(shí)，由于分子鏈斷裂，門(mén)尼粘度有所下降。低門(mén)尼枯度的乙丙橡膠，只是在塑煉初期門(mén)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(mén)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(kāi)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(kāi)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(kāi)煉機(jī)混煉時(shí)應(yīng)注意以下幾點(diǎn)： </p> <p> 1 ）門(mén)尼粘度低的可以用開(kāi)煉機(jī)混煉，門(mén)尼粘度高的用開(kāi)煉機(jī)混煉比較困難； </p> <p> 2）混煉開(kāi)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。 </p><p> 乙丙膠與高不飽和膠種并用二： </p> <p> 在拉斷強(qiáng)度降低幅度比較大的并用比時(shí)（ＥＰＤＭ／ＮＲ＝７５／２５）碘值與拉斷強(qiáng)度的關(guān)系。拉斷強(qiáng)度隨碘值增大而直線上升，這說(shuō)明通過(guò)提高碘值可以改善并用膠的共硫化性，至于第三單體的效果，在同一碘值下進(jìn)行的比較表明，硫化速度快的乙叉降冰片烯ＥＰＤＭ膠共硫化性遠(yuǎn)為優(yōu)越，但決定的因素還是碘值。其次，調(diào)節(jié)硫化的特性也是有力的措施，并用膠的拉斷強(qiáng)度隨硫化促進(jìn)劑種類的不同而有明顯的差異，采用低速促進(jìn)劑時(shí)的拉斷強(qiáng)度比采用超速促進(jìn)劑高得多，硫化速度（Ｖ）和硫化速度常數(shù)（Ｋ）與高不飽和橡膠的相應(yīng)值越接近越好。 </p> <p> 炭黑的影響如下：補(bǔ)強(qiáng)性越大，則拉斷強(qiáng)度越高，不同摻和方法的并用膠物理性能不同中兩種方法：一種為生膠摻和法，即先將生膠相互摻和，然后再加配合劑。另一種為母煉膠摻和法：系兩種生膠先分別加配合劑，***將兩種膠料摻和，性能以后者為佳。 </p> <p> <br /> 三元乙丙橡膠是一種密度較低的橡膠，其密度為0.87。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-282F錦湖誠(chéng)信經(jīng)營(yíng),錦湖" src="http://tyunfile.71360.com/UploadFile/junyi/637206627947089844/9064348.png"></div><p> EPDM在發(fā)動(dòng)機(jī)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(dòng)機(jī)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(yáng)光、水、臭氧，使用溫度在-40℃～125℃，短期耐熱溫度可達(dá)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(qiáng)度應(yīng)在10.5MPa以上；斷裂伸長(zhǎng)率一般在175%以上；在伸長(zhǎng)率50%下的定伸應(yīng)力為1～2MPa；在伸長(zhǎng)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(wú)裂紋；對(duì)于發(fā)動(dòng)機(jī)冷卻系統(tǒng)中應(yīng)用的密封件應(yīng)進(jìn)行冷卻液試驗(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(zhǎng)率變化應(yīng)為-15%～20%，體積改變應(yīng)在±5%；對(duì)于空調(diào)系統(tǒng)中應(yīng)用的密封件，應(yīng)進(jìn)行制冷劑試驗(yàn)（將試樣放于PAG、ND8制冷劑中，100℃，70h）其硬度變化**多為±5，拉伸強(qiáng)度變化**多為±20%，斷裂伸長(zhǎng)率變化**多為-15%～20%，體積改變應(yīng)在±5%之內(nèi)；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(zhǎng)率的下降不能超過(guò)10%。 EPDM與NBR分子極性差別很大，相容性很差，共混時(shí)需要添加相容劑提高二者的相容性。錦湖EPDM KEP-7141</p><p style="text-indent:25px">EPDM用于制作發(fā)動(dòng)機(jī)用水管。KEP-282F錦湖誠(chéng)信經(jīng)營(yíng)</p><p> 2.過(guò)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(guò)氧化物硫化的干擾**?。Ａ肯陆递^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(guò)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。 KEP-282F錦湖誠(chéng)信經(jīng)營(yíng)</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(lái)、有夢(mèng)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(lái)的道路上大放光明，攜手共畫(huà)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(chéng)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(lái)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(yáng)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(jī)，一直以來(lái)，公司貫徹執(zhí)行科學(xué)管理、創(chuàng)新發(fā)展、誠(chéng)實(shí)守信的方針，員工精誠(chéng)努力，協(xié)同奮取，以品質(zhì)、服務(wù)來(lái)贏得市場(chǎng)，我們一直在路上！</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3003078.html</p></div></div></div></div></div><div id="72zfwdf" class="page-right twoColRt"><div id="lp8reg8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="po2amoq" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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