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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="k9hwngu" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000842428031661/6370008424280316619947092.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="39tvcoi" 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>錦湖KUMHO KEP-282F,錦湖</p><p><span>***更新：</span>2020-12-15 09:03:17</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="tamtkwz" 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="njfm3my" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="b782qb2" class="box"><p><p> EPDM共混改性二： </p> <p> ＥＰＤＭ／聚酰胺（ＰＡ）：ＰＡ具有很高的抗張強度和抗沖擊韌性和耐磨性，與ＥＰＤＭ共混為一種高彈性模量和良好加工性能的彈性體，主要用于制造汽車零部件和建筑材料。北京化工大學(xué)馬勇等選用氯化聚乙烯（ＣＰＥ）作為ＥＰＤ脅體系的增容劑，研究得至ＵＣＰＥ的比較好用量是ＰＡ的１／２，當(dāng)ＰＡ用量為３０-４０份時產(chǎn)生比較好增***果。該項研究產(chǎn)物**提高了ＥＰＤＭ撕裂強度，而磨耗降低和耐油性提高，尤其是通過壓延拉伸ＰＡ能形成類似短纖維補強的微纖復(fù)合材料（ⅧＲＣ）。 </p> <p> ＥＰＤＭ／有機硅硅橡膠（ｖＭＱ）ＥＰＤＭ與有機硅橡膠改性，可以獲得許多優(yōu)異特性，在耐熱性、耐候性、壓縮長久變形性能方面優(yōu)于硅橡膠，既可用硫磺硫化，又可用過氧化物硫化，適用于多種成型方式，因此可用于硅橡膠或乙丙橡膠不能適應(yīng)的場合，如汽車減震材料、發(fā)動機耐熱部件、電氣部件等，耐熱等級從ＥＰＤＭ的１５０℃提高到１７５℃，錦湖KUMHO KEP-282F。 </p> <p> <br /> EPDM改性樹脂，除了EPDM改性PP、PE聚烯烴樹脂外，錦湖KUMHO KEP-282F，錦湖KUMHO KEP-282F，環(huán)氧化、馬來酸酸化的EPDM還可增韌PBT、PA等極性樹脂。錦湖KUMHO KEP-282F</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="錦湖KUMHO KEP-282F,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000842428031661/6370008424280316619947092.JPG"></div><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> 錦湖 KEP-270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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="錦湖KUMHO KEP-282F,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000840541317795/6370008405413177956391122.JPG"></div><p> 2. 增強改性二： </p> <p> 短纖維／橡膠復(fù)合材料（ＳＦＲＣ）將纖維的剛性與橡膠的柔性有機結(jié)合在一起，滿足一些橡膠制品的某些性能特殊要求，在傳動帶、膠管、密封制品等廣泛應(yīng)用。ＳＦＲＣ性能強烈依賴于纖維的形狀系數(shù)（長徑比）、短纖維在橡膠基體的分散及取向、纖維與橡膠的黏合等。由于ＥＰＤＭ分子結(jié)構(gòu)中缺少活性基團，內(nèi)聚能低，與纖維之間界面作用弱，影響纖維的分散和黏合，因此纖維的表面處理對ＥＰＤＭ的ＳＦＲＣ非常重要。經(jīng)過改性處理的短纖維對ＥＰＤＭ膠料的交聯(lián)反應(yīng)具有某種催化作用，它能增加交聯(lián)速度和交聯(lián)密度，使復(fù)合材料獲得更大的強度和彈性。 </p><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 在橡膠制品生產(chǎn)過程中，黏合是一個很重要的課題。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="錦湖KUMHO KEP-282F,錦湖" src="http://tyunfile.71360.com/UploadFile/junyi/637206627957900390/1400700.jpg"></div><p> EPDM用于制作發(fā)動機用水管， </p> <p> 其內(nèi)、外膠層均采用EPDM材料制造。此類產(chǎn)品接觸的介質(zhì)是防凍液、陽光、水、臭氧，使用溫度在-40℃～125℃，短期耐熱溫度可達(dá)150℃。 </p> <p> 此類零件采用的EPDM，硬度（邵氏A）為65；其拉伸強度應(yīng)在10.5MPa以上；斷裂伸長率在300%以上；在伸長率50%下的定伸應(yīng)力為1～2MPa；伸長率**下的定伸應(yīng)力為2～4.5MPa以上；壓縮殘余變形（100℃，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)無裂紋；冷卻液試驗（將試樣放于防凍液中，150℃，166h，試驗壓力約0.4MPa），其硬度變化應(yīng)為±5，拉伸強度變化應(yīng)為±20%，斷裂伸長率變化應(yīng)為-15%～20%，體積改變應(yīng)在±5%；熱老化試驗（150℃，70h），其硬度變化應(yīng)為±5，拉伸強度下降應(yīng)小于10%，伸長率的下降不能超過10%。接枝改性是改善乙丙橡膠性能缺點的重要途徑之一，也為制備綜合性能更優(yōu)異的改性乙丙橡膠提供了可能。高ENB 錦湖EPDM</p><p style="text-indent:25px">過氧化物常用交聯(lián)助劑有:烯丙基化合物(TAC和TAIC等),DTDM,HVA-2等。錦湖KUMHO KEP-282F</p><p style="text-indent:25px">Ａ.Ｅｓｔｒｉｎ等用馬來酸酐聚丁二烯（ＰＢＤＭＡ）處理芳綸、尼龍聚酯和棉等纖維，結(jié)果**提搞這些短纖維在ＥＰＤＭ的黏合作用。岑蘭等探討了幾種硅烷偶聯(lián)劑預(yù)處理棉短纖維（ＳＣＦ）種類、取向和用量對短纖維／橡膠復(fù)合材料（ＳＦＲＣ）力學(xué)性能和老化性能的影響。研究結(jié)果表明：與未處理ＳＣＦ相比，硅烷偶聯(lián)劑預(yù)處理的ＳＣＦ．具有更佳的補強性能，ＳＦＲＣ的拉伸強度、撕裂強度和扯斷伸長率更高。其中，硅烷偶聯(lián)劑ＫＨ-５７０（３-氨丙基三乙氧基硅烷）和ＫＨ-５８０（３-巰丙基三乙氧基硅烷）處理ＳＣＦ對ＥＰＤＭ的增***果更為明顯。吳衛(wèi)東等比較了表面特殊處理、常規(guī)此理和未處理的尼龍纖維對ＥＰＤＭ／尼龍復(fù)合材料性能影響，結(jié)果表明，經(jīng)表面特殊處理的ＳＦＲＣ屈服強度**提高，拉伸斷裂后纖維表面存在一定厚度且柔韌的界面過渡薄層。錦湖KUMHO KEP-282F</p><p style="text-indent:25px">上海君宜化工銷售中心（有限合伙）致力于橡塑，是一家貿(mào)易型公司。公司業(yè)務(wù)涵蓋化工原料及產(chǎn)品，橡膠，炭黑，色母粒，彈性體等，價格合理，品質(zhì)有保證。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。上海君宜化工憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2414703.html</p></div></div></div></div></div><div id="ndu3ppj" class="page-right twoColRt"><div id="dxo8je2" class="box01 margin10 clearfix"><h3><a 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