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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>?密封圈用錦湖EPDM 創(chuàng)新服務(wù) 上海君宜化工供應(yīng)</p><div id="3qxzovn" class="leftbox clearfix"><h1>密封圈用錦湖EPDM 創(chuàng)新服務(wù) 上海君宜化工供應(yīng)</h1><div id="0nkmgs3" class="proBig"><div id="macz4ub" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/8/637025952626016648/6370259526260166489420208.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bqnk4lc" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/8/637025952626016648/6370259526260166489420208.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="a7uwqce" 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>密封圈用錦湖EPDM,錦湖</p><p><span>***更新：</span>2020-12-14 00:14:10</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ptqncoa" 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="i3szeah" class="page-proshow02"><p class="title">詳細說明</p><div id="xrolnpw" class="box"><p><p> 增強改性一： </p> <p> 納米材料增強：用納米技術(shù)能夠在分子水平上重組物質(zhì)結(jié)構(gòu)，從而使新材料具有比傳統(tǒng)材料更優(yōu)越的性能。通過填充納米填料制備橡膠納米復(fù)合材料（分散相至少有一維的尺寸介于１~１００nｍ）已成為目前研究的新熱點。由于納米粒子具有的小尺寸效應(yīng)、量子效應(yīng)、不飽和價效應(yīng)和電子隧道效應(yīng)等表面效應(yīng)，因此引入納米填料將使橡膠的性質(zhì)發(fā)生很大改變，并有可能獲得一些新的性能。 </p> <p> 納米材料增強ＥＰＤＭ研究近年十分活躍，主要有納米粘土（層狀硅酸鹽）、納米二氧化硅、納米碳酸鈣、炭黑一白炭黑雙相納米填料、納米氧化鋅、納米氫氧化鎂、納米石墨、納米氧化鋁、納米氮化硅，密封圈用錦湖EPDM、納米丙烯酸金屬鹽、納米ＰＴＥＥ、碳納米管和納米級纖維等，使ＥＰＤＭ獲得更優(yōu)異，密封圈用錦湖EPDM、更***的性能，進一步拓寬ＥＰＤＭ使用范圍。三元乙丙橡膠具有優(yōu)異的電絕緣性能和耐電暈性，密封圈用錦湖EPDM，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。密封圈用錦湖EPDM</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="密封圈用錦湖EPDM,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/8/637025952626016648/6370259526260166489420208.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-9570E錦湖歡迎咨詢?nèi)冶鹉z(EPDM)卷材是目前世界公認的性能比較好異的防水材料。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="密封圈用錦湖EPDM,錦湖" src="http://tyunfile.71360.com/UploadFile/junyi/637206627958671875/7200008.jpg"></div><p> 8.PDM的成型方式壓出膠料壓出性能往往是以膠料容易輸送、壓出速度快、壓出物表面光滑以及形狀、尺寸保持性好為標(biāo)志。三元乙丙橡膠比一般橡膠容易壓出，壓出速度較快，壓出物收縮小，但要控制好膠料的門尼粘度和壓出溫度。乙丙橡膠膠料門尼粘度以40~60為佳。乙烯含量高及分子量分布窄的三元乙丙橡膠壓出工藝性能好。高填充配合的膠料亦有良好的壓出性能，特別是填充高結(jié)構(gòu)爐黑、快壓出爐黑、通用爐黑、半補強爐黑、中粒子熱裂法炭黑和細粒子熱裂法炭黑等炭黑的膠料壓出表面光滑。白色填料以鈦白、滑石粉、碳酸鈣為比較好，壓出速度超過炭黑膠料。壓延EPDM膠料需要通過壓延制備各種規(guī)格膠片以及在織物上擦膠或貼膠。膠料門尼粘度、壓延速度和溫度均會影響壓延物質(zhì)量。壓延溫度過低容易產(chǎn)生氣泡，壓延物不平整，收縮大。一般壓延溫度應(yīng)控制如下：上輥90~100℃，中輥90℃左右，下輥90~120℃。模壓三元乙丙橡膠高溫流動性較好，故制造模壓制品時沒有什么困難。但制造結(jié)構(gòu)復(fù)雜的模制品時，要在模型關(guān)鍵部位鉆些氣眼以排出窩藏的氣體，避免制品產(chǎn)生氣孔缺點或表面發(fā)粘等。用過氧化物硫化的膠料熱撕裂性能差，配方中應(yīng)采用少量硫磺作共交聯(lián)劑以改善其熱撕裂性能。 </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?。歉鼜姷淖杂苫蹲叫头览蟿矗矗担ǘ榛桨罚﹨s可達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一步提高ＥＰＤＭ的高溫耐熱性。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)膠層和制動泵中密封圈的制作。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="密封圈用錦湖EPDM,錦湖" src="http://tyunfile.71360.com/UploadFile/junyi/637206627878681640/5029381.jpg"></div><p> 聚烯烴類熱塑彈性體幾年來新材料不斷涌現(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?。EPDM/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，廣泛應(yīng)用于汽車、電線電纜建筑、家用電器、機械、運動器械等領(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。是制備多級發(fā)動機齒輪油的主要添加劑之西方發(fā)達國家油品添加劑6.聚合物改性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。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。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。錦湖EPDM KEP-510</p><p style="text-indent:25px">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。密封圈用錦湖EPDM</p><p> . 乙烯丙烯比 </p> <p> 乙烯丙烯比可以在硫化階段進行改變，商業(yè)的三元乙丙聚合物乙烯丙烯比由80/20到50/50。當(dāng)乙烯丙烯比由50/50變化到80/20時，正面的影響有：更高的壓坯強度，更高的拉伸強度，更高的結(jié)晶化，更低的玻璃體轉(zhuǎn)化溫度，能將原材料聚合物轉(zhuǎn)化成丸狀，以及更好的擠出特性。不好的影響就是不好的壓延混合性，較差的低溫特性，以及不好的壓縮形變。 </p> <p> <p> . 乙烯丙烯比 </p> <p> 乙烯丙烯比可以在硫化階段進行改變，商業(yè)的三元乙丙聚合物乙烯丙烯比由80/20到50/50。當(dāng)乙烯丙烯比由50/50變化到80/20時，正面的影響有：更高的壓坯強度，更高的拉伸強度，更高的結(jié)晶化，更低的玻璃體轉(zhuǎn)化溫度，能將原材料聚合物轉(zhuǎn)化成丸狀，以及更好的擠出特性。不好的影響就是不好的壓延混合性，較差的低溫特性，以及不好的壓縮形變。 </p> 密封圈用錦湖EPDM</p><p style="text-indent:25px">上海君宜化工銷售中心（有限合伙）位于上海市浦東新區(qū)五星路676弄萬科御河10棟。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下化工原料及產(chǎn)品，橡膠，炭黑，色母粒，彈性體深受客戶的喜愛。公司秉持誠信為本的經(jīng)營理念，在橡塑深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造橡塑良好品牌。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2389564.html</p></div></div></div></div></div><div id="2cewdk2" class="page-right twoColRt"><div id="ptqs3jg" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="x33w2yf" 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