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href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="fhdbh5n" class="twoCol"><div id="pnlj5hd" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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(lèi)</a>?KEP-430H錦湖質(zhì)量保證歡迎來(lái)電上海君宜化工供應(yīng)</p><div id="jpvj5rf" class="leftbox clearfix"><h1>KEP-430H錦湖質(zhì)量保證歡迎來(lái)電上海君宜化工供應(yīng)</h1><div id="5hlz35z" class="proBig"><div id="djpn5lj" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000839767498091/6370008397674980918250190.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3jhfbf3" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000839767498091/6370008397674980918250190.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3jpnr3t" 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-430H錦湖質(zhì)量保證,錦湖</p><p><span>***更新：</span>2021-01-24 10:02:40</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="3v5xtrn" 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(xiāo)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="tpn37tr" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="rp5jv3v" class="box"><p><p> 三元乙丙膠性能特點(diǎn)：與其他常用的通用橡膠或特種橡膠相比，三元乙丙橡膠的主要性能優(yōu)勢(shì)在于以下幾方面：(1)性價(jià)比高，生膠密度只有～，是生膠密度**輕的常用橡膠；且可大量填充以降低膠料成本。(2)優(yōu)異的耐老化特性，KEP-430H錦湖質(zhì)量保證，耐天候、耐臭氧、耐日光、耐熱、耐水、耐水蒸氣、耐紫外線、耐輻射等老化性能，在與其他不飽和的二烯類(lèi)橡膠如NR、SBR、BR、NBR，KEP-430H錦湖質(zhì)量保證、和CR等并用時(shí)，EPDM可起到高分子抗氧劑或防老劑的作用。(3)優(yōu)異的耐化學(xué)藥品特性，耐酸、堿，KEP-430H錦湖質(zhì)量保證、洗滌劑、動(dòng)植物油、醇、酮等；杰出的耐水、耐過(guò)熱水、耐水蒸氣性能；耐極性油性能。(4)優(yōu)良的絕緣性能，體積電阻率1016Q·cm、擊穿電壓30～40MV/m、介電常數(shù)(1kHz，20℃)。(5)適用溫度范圍廣，比較低使用溫度-40～-60℃，可長(zhǎng)期在130℃條件下使用。乙丙橡膠有優(yōu)異的耐水蒸氣性能并優(yōu)于其耐熱性。KEP-430H錦湖質(zhì)量保證</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-430H錦湖質(zhì)量保證,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000839767498091/6370008397674980918250190.JPG"></div><p> 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，是乙丙橡膠的一種，以EPDM（EthylenepyleneDieneMonomer）表示，因其主鏈?zhǔn)怯苫瘜W(xué)穩(wěn)定的飽和烴組成，只在側(cè)鏈中含有不飽和雙鍵，故其耐臭氧、耐熱、耐候等耐老化性能優(yōu)異，可***用于汽車(chē)部件、建筑用防水材料、電線電纜護(hù)套、耐熱膠管、膠帶、汽車(chē)密封件等領(lǐng)域。三元乙丙橡膠是乙烯、丙烯以及非共軛二烯烴的三元共聚物，1963年開(kāi)始商業(yè)化生產(chǎn)。每年全世界的消費(fèi)量是80萬(wàn)噸。EPDM**主要的特性就是其優(yōu)越的耐氧化、抗臭氧和抗侵蝕的能力。由于三元乙丙橡膠屬于聚烯(PA66)烴家族，它具有極好的硫化特性。在所有橡膠當(dāng)中，EPDM具有比較低的比重。它能吸收大量的填料和油而影響特性不大。因此可以制作成本低廉的橡膠化合物。加工性能優(yōu)異三元乙丙膠錦湖廠家直銷(xiāo)價(jià)EPＤＭ中乙烯和丙烯含量對(duì)其性能有較大影響.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-430H錦湖質(zhì)量保證,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000897306890087/6370008973068900877713965.JPG"></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(lèi)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(lèi)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%。 </p><p> EPDM生產(chǎn)工藝 </p> <p> 現(xiàn)階段在EPDM橡膠的生產(chǎn)中常用的制作工藝主要有三種，分別為：懸浮聚合法、溶液聚合法及氣相聚合法。 </p> <p> 1.懸浮聚合法 </p> <p> 除了上期提到的乙烯、丙烯，該方法使用的第三單體還有乙叉變冰片烯以及雙環(huán)戊二烯，催化劑以AClt2Cl、乙酰**釩的應(yīng)用較多，活化劑常選用二路丙二酸二乙酯。該方法有點(diǎn)在于在制作工藝中并未使用到溶劑，由于聚合物濃度較高，所以聚合效率和生產(chǎn)效率都**提高，同時(shí)由于省略的溶劑循環(huán)和回收環(huán)節(jié)，所以節(jié)約了能耗和設(shè)備投資；產(chǎn)品的分子量分布***；生產(chǎn)成本遠(yuǎn)低于溶液。不足之處是，若想從聚合物中脫離掉殘留的催化劑難度較大。 </p> <p> 2.溶液聚合法 </p> <p> 該制作工藝屬于相反應(yīng)，整個(gè)工藝過(guò)程主要包括：原料配制、聚合、溶劑、單體回收和包裝等。目前來(lái)說(shuō)溶液聚合法是比較成熟的一種工藝，也是生產(chǎn)制作三元乙丙橡膠的主要方法。操作簡(jiǎn)單、產(chǎn)品質(zhì)量均勻、灰分含量不多；不足的是聚合反應(yīng)的發(fā)生有溶劑的參與，所以傳質(zhì)傳熱效果較差，**降低了聚合效率。另外，因?yàn)樾枰獙?duì)溶劑和單體進(jìn)行回收操作，生產(chǎn)工序增加，設(shè)備投資也相應(yīng)加大。 </p> <p> <br /> 不飽和羧酸金屬鹽也是一種能夠參與硫化的多功能助劑,可起硫化助劑、橡膠、金屬粘合助劑和補(bǔ)強(qiáng)劑等作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-430H錦湖質(zhì)量保證,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000840446850559/6370008404468505596331236.JPG"></div><p> EPDM擠出成型 </p> <p> 橡膠的擠出成型始于內(nèi)胎成型，逐漸被廣泛應(yīng)用于汽車(chē)用內(nèi)飾材料、外飾材料、建筑用材料、管道、電線等領(lǐng)域特別是由于三元乙內(nèi)橡膠的擠壓物表面光滑干凈，主要用于維持形狀等物理特點(diǎn)要求高的地方， </p> <p> 為制造良好的KP三元乙丙橡膠擠出物，必須考慮如下要求特點(diǎn)。 </p> <p> l 分子量 </p> <p> l 分子量分布(MWD) </p> <p> l 乙烯丙烯的組成分布 </p> <p> l 填充劑的種類(lèi)及擠壓加工性 </p> <p> l 硫化計(jì) </p> <p> 分子量的大小主要反應(yīng)在生膠的門(mén)尼上，較低的門(mén)尼粘度有助于橡膠的順利擠出，分子量分布寬擠出性能優(yōu)異，乙烯含量對(duì)擠出性能會(huì)有相對(duì)正向的影響，填料方面，炭黑、碳酸鈣相對(duì)于白炭黑而言更利于擠出。 </p> <p> 進(jìn)行擠出加工時(shí)主要發(fā)生的問(wèn)題包括擠壓量、沖模膨脹、形狀維持性、擠壓物的表面狀態(tài)、給料性等，為解決這些問(wèn)題，必須注意聚合體的選擇以及填充劑的選擇。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(guò)氧化物及樹(shù)脂硫化。高度二烯三元乙丙膠錦湖供應(yīng)商</p><p style="text-indent:25px">三元乙丙橡膠制品在120℃下可長(zhǎng)期使用，在150～200℃下可短暫或間歇使用。KEP-430H錦湖質(zhì)量保證</p><p> EPDM密煉相關(guān) </p> <p> 密煉時(shí)的注意事項(xiàng) </p> <p> 1)內(nèi)部混合時(shí)投入量以缸膛凈容積NCV)的體積為基準(zhǔn)，填充759%-85%。 </p> <p> 2)混煉溫度的適當(dāng)范圍大概是130-160C，但隨著內(nèi)部攪拌器的形式、冷卻方式、爐量、混合劑的種類(lèi)和量等的不同而出現(xiàn)差異。 </p> <p> 3)右下向上法若在填充劑、加工原料油大量混合時(shí)使用，短時(shí)間內(nèi)即可進(jìn)行混煉。 </p> <p> 密煉煉時(shí)的檢查項(xiàng)目 </p> <p> 在現(xiàn)場(chǎng)進(jìn)行內(nèi)部混煉時(shí)，容易發(fā)生分散不良、物性不良等問(wèn)題，為防止發(fā)生這些問(wèn)題，要注意如下檢查點(diǎn)。 </p> <p> l 產(chǎn)品的特點(diǎn)與混合方法(混煉模式)是否選擇正確? </p> <p> l 選擇的聚合體的形態(tài)是?(大包、松散塊狀、顆粒狀、碎屑等) </p> <p> l 批量號(hào)投入適量嗎? </p> <p> l 投入物的種類(lèi)、形態(tài)、重量準(zhǔn)確嗎? </p> <p> l 攪拌器的Ram壓力適當(dāng)嗎?沖壓跳動(dòng)程度及混煉聲音。循環(huán)水的溫度準(zhǔn)確嗎? </p> <p> l 連續(xù)混煉時(shí)攪拌器內(nèi)部溫度的上升程度? </p> <p> l 轉(zhuǎn)子的旋轉(zhuǎn)速度及清理。排出溫度以及時(shí)間準(zhǔn)確嗎? </p> <p> l 被排出的混合物的形態(tài)及排出狀態(tài)是?(有無(wú)未分散的塊?) </p> <p> l 被排出的混合物的氣味(具有揮發(fā)性物質(zhì)的氣味) </p> <p> l 攪拌器的溫度圖表、耗電圖表狀態(tài)正常嗎? </p> <p> l 季節(jié)性因素：大氣溫度、原材料的保管狀態(tài)及溫度、中間材料的保管狀志及溫度 </p> <p> l 有無(wú)**近更換的原材料、輔助材料? </p> <p> l 自動(dòng)計(jì)量狀態(tài)是否良好? KEP-430H錦湖質(zhì)量保證</p><p style="text-indent:25px">上海君宜化工銷(xiāo)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/2989238.html</p></div></div></div></div></div><div id="3bftrxt" class="page-right twoColRt"><div id="dljh7vb" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="zxvbpvt" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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