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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="kdv8pho" class="twoCol"><div id="uy3b98p" 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</a>?KEP-570F錦湖誠(chéng)信經(jīng)營(yíng) 來(lái)電咨詢上海君宜化工供應(yīng)</p><div id="v8z37su" class="leftbox clearfix"><h1>KEP-570F錦湖誠(chéng)信經(jīng)營(yíng) 來(lái)電咨詢上海君宜化工供應(yīng)</h1><div id="lzvkw93" class="proBig"><div id="xqszg9t" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/junyi/637206627879140625/8545070.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zs7icqm" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/junyi/637206627879140625/8545070.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gpmequw" 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-570F錦湖誠(chéng)信經(jīng)營(yíng),錦湖</p><p><span>***更新：</span>2021-01-24 03:02:44</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="uyvs2oq" 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="nbtvnwi" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="hlip2m8" 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，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橡膠如NR、SBR、BR、NBR、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，KEP-570F錦湖誠(chéng)信經(jīng)營(yíng)、堿、洗滌劑，KEP-570F錦湖誠(chéng)信經(jīng)營(yíng)，KEP-570F錦湖誠(chéng)信經(jīng)營(yíng)、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。硫載體硫化膠交聯(lián)密度大，綜合力學(xué)性能較好,長(zhǎng)久變形大,耐熱老化性能差。KEP-570F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-570F錦湖誠(chéng)信經(jīng)營(yíng),錦湖" src="http://tyunfile.71360.com/UploadFile/junyi/637206627879140625/8545070.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(guò)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(zhǎng)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(zhǎng)久形變DCPD－防焦性，低長(zhǎng)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。 KEP-570F錦湖誠(chéng)信經(jīng)營(yíng)EPDM改性樹脂，除了EPDM改性PP、PE聚烯烴樹脂外，環(huán)氧化、馬來(lái)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-570F錦湖誠(chéng)信經(jīng)營(yíng),錦湖" src="http://tyunfile.71360.com/UploadFile/junyi/637206627878896484/8886818.jpg"></div><p> 乙丙膠的發(fā)展 </p> <p> 乙丙橡膠是齊格勒——納塔立體有規(guī)催化體系開發(fā)后發(fā)展起來(lái)的一種介于通用橡膠和特種橡膠之間的合成橡膠。１９５０年后納塔（Ｎａｔｔａ）等發(fā)現(xiàn)了新型聚合催化劑，于是采用立體有規(guī)性催化劑進(jìn)行烯烴聚合的研究逐漸開展起來(lái)，特別是將石油所大量產(chǎn)生的乙烯、丙烯等烯烴試行聚合，乙烯和丙烯的共聚物特別表現(xiàn)出橡膠彈性。這種聚合物的特點(diǎn)是：在分子排列上很象天然橡膠，但物理性能優(yōu)異，基本原料價(jià)廉。它作為合成橡膠于１９５９年首先由意大利蒙特卡蒂尼（Ｍｏｎｔｉｃａｔｉｎｉ）公司的海洛特工廠商品化，這是所謂（二元乙丙橡膠）。這種橡膠主鏈不含雙鍵，是與以往合成橡膠完全不同的一類橡膠。一方面因該橡膠不含雙鍵致使耐熱性、耐天候性、耐臭氧性和耐化學(xué)藥品性十分優(yōu)越。另一方面由于不含雙鍵的緣故而不能采用硫黃硫化法使之交聯(lián)，但在１９６２年通過(guò)加入第三單體的方法而使它變成可用硫黃硫化的橡膠。 </p><p> EPDM配方設(shè)計(jì)的方法 </p> <p> a.關(guān)于村科的種類 </p> <p> 此概念的基礎(chǔ)上采取添加所需材料的方法。追求“簡(jiǎn)單的就是比較好的"這排除計(jì)量失誤發(fā)生的可能性，材料的種類是越少越好。為便于在場(chǎng)進(jìn)行原材料管理，以由于近來(lái)各材料生產(chǎn)商都在不斷地開發(fā)新材料，村料也就在所難免。因此使用橡膠產(chǎn)品要求性能上年然而，在不能準(zhǔn)確把任何時(shí)候添加材料，都可能成為泄漏、起霜等負(fù)面因素。把握村料效果的情況下，比較好不要盲目地河地添加材料。 </p> <p> 漫合設(shè)計(jì)時(shí)適宜的材料種類 </p> <p> 聚合體3種以下 </p> <p> 碳/黑 2種以下 </p> <p> 填充物 2種以下 </p> <p> 軟化劑可塑劑 2種以下 </p> <p> 加工助劑 2種以下 </p> <p> 抗老化劑 2種以下 </p> <p> 促進(jìn)劑(丁晴橡膠混合) 3種以下 </p> <p> 促進(jìn)劑(三元乙丙橡膠般混合) 4種以下 </p> <p> b.關(guān)于材料的添加量 </p> <p> “比較低添加量比較好為0.2phr以上”其理由在于，在現(xiàn)場(chǎng)使用大型機(jī)械進(jìn)行混煉操作時(shí)，經(jīng)常發(fā)生分散不充分的情況并且如添加量少，將會(huì)發(fā)生分散不均勻的現(xiàn)象。 </p> <p> 如果不得已要添加0.1phr以下的量時(shí)，需要事先完全與材料混合，使?jié)舛冉档?，此外，氧化鋅的比重為5.6左右時(shí)，雖然重量份數(shù)為5Phr.但容量份數(shù)為0.891通常添加量不需要5Phr,比較好是添加3Phr以上，在進(jìn)行硫化過(guò)程中，當(dāng)內(nèi)模被行財(cái)，可以考慮混合少量的氧化鋅，但這時(shí)比較好添加活性氧化鋅活性氧化鋅)。三元乙丙橡膠的分子量及分布可以通過(guò)凝膠滲透色譜法使用二氯苯作為溶劑在高溫下（150℃）測(cè)量而得。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-570F錦湖誠(chéng)信經(jīng)營(yíng),錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000841843162090/6370008418431620902739716.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(qiáng)層（化纖織物或鋼絲）及外層。三層所用材料應(yīng)根據(jù)實(shí)際要求進(jìn)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(jī)械強(qiáng)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?yàn)樵摬牧暇哂泻芎玫哪涂諝狻⑺?、臭氧、?yáng)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(qiáng)度應(yīng)在10.5MPa以上；斷裂伸長(zhǎng)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(wú)裂紋；IRM902號(hào)油試驗(yàn)（將試樣放于IRM902號(hào)油中，100℃，70h）其硬度降低比較大為15，拉伸強(qiáng)度降低比較大為30%，撕裂強(qiáng)度降低比較大為30%，體積改變應(yīng)在80%之內(nèi)；熱老化試驗(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(zhǎng)率的下降不能超過(guò)40%。 </p> <p> 推薦使用牌號(hào)：錦湖KEP960N 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。KEP-430H錦湖誠(chéng)信經(jīng)營(yíng)</p><p style="text-indent:25px">過(guò)氧化物硫化膠有較好熱穩(wěn)定性和耐壓縮長(zhǎng)久變形性,硫化速度慢,抗撕裂性能和其他性能均較差,氣味不佳。KEP-570F錦湖誠(chéng)信經(jīng)營(yíng)</p><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(lái)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(lái)提高粘合力。其中比較簡(jiǎn)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(shí)也使硫化膠物理機(jī)械性能下降，如彈性下降，長(zhǎng)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(diǎn)是價(jià)格較高。 KEP-570F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(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/2981874.html</p></div></div></div></div></div><div id="8zo8e7y" class="page-right twoColRt"><div id="jnp7y23" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3bw2b3y" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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