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class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000896954213787/6370008969542137873087254.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3lda8dc" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000896954213787/6370008969542137873087254.JPG" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="q23ifm9" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>KEP-350錦湖客戶至上,錦湖</p><p><span>最后更新：</span>2020-12-13 01:02:53</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="8yvx9bg" 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="tfmjtau" class="page-proshow02"><p class="title">詳細說明</p><div id="oxubvm4" class="box"><p><p> EPDM配方設計的方法 </p> <p> a.關于村科的種類 </p> <p> 此概念的基礎上采取添加所需材料的方法。追求“簡單的就是比較好的"這排除計量失誤發(fā)生的可能性，材料的種類是越少越好。為便于在場進行原材料管理，以由于近來各材料生產商都在不斷地開發(fā)新材料，村料也就在所難免。因此使用橡膠產品要求性能上年然而，在不能準確把任何時候添加材料，都可能成為泄漏、起霜等負面因素。把握村料效果的情況下，KEP-350錦湖客戶至上，比較好不要盲目地河地添加材料。 </p> <p> 漫合設計時適宜的材料種類 </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> 促進劑(丁晴橡膠混合) 3種以下 </p> <p> 促進劑(三元乙丙橡膠般混合) 4種以下 </p> <p> b.關于材料的添加量 </p> <p> “比較低添加量比較好為0.2phr以上”其理由在于，在現場使用大型機械進行混煉操作時，經常發(fā)生分散不充分的情況并且如添加量少，將會發(fā)生分散不均勻的現象。 </p> <p> 如果不得已要添加0，KEP-350錦湖客戶至上.1phr以下的量時，需要事先完全與材料混合，KEP-350錦湖客戶至上，使?jié)舛冉档?，此外，氧化鋅的比重為5.6左右時，雖然重量份數為5Phr.但容量份數為0.891通常添加量不需要5Phr,比較好是添加3Phr以上，在進行硫化過程中，當內模被行財，可以考慮混合少量的氧化鋅，但這時比較好添加活性氧化鋅活性氧化鋅)。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、金屬粘合助劑和補強劑等作用。KEP-350錦湖客戶至上</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-350錦湖客戶至上,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000896954213787/6370008969542137873087254.JPG"></div><p> EPDM電纜上的應用 </p> <p> 電線電纜上主要用于民用和商用建筑的輸入線、建筑用電線、礦用電纜、核電站用電線、風能用線、汽車點火線、控制及信號電纜。ＩＥＣ標準規(guī)定，分體空調機連接電纜不得再使用塑料絕緣電纜，一方面是為了增加柔軟性，同時耐老化性和安全可靠性。近幾年來，國內對橡皮絕緣電線電纜的需求又異乎尋常地多起來，主要是低壓產品，而１ＫＶ以上的橡皮絕緣電纜，除了船用電纜和礦用電纜以外，電力電纜方面則還是極少?，F代國外中高壓橡皮絕緣電纜主要是采用乙丙橡膠絕緣，意大利的乙丙膠絕緣電纜早已做到１５０ｋＶ，１５ｋＶ乙丙膠絕緣電纜已經是美國最主流品種。而我國在這個產品上還是相當落后，船舶及機械產品出口量的增加，要求船用電纜及潤滑油等的標準必須與國際接軌而增加了乙丙橡膠用量。錦湖KUMHO溴化丁基共混三元乙丙膠乙丙橡膠綜合物理機械性能介于天然膠與丁苯膠之間，與丁基橡膠類似。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-350錦湖客戶至上,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000839302751774/6370008393027517745965311.JPG"></div><p> 乙丙膠與高不飽和膠種并用一： </p> <p> 在兩種橡膠并用時影響共硫化的因素有橡膠相的混合性，兩種橡膠的硫化特性及配合劑的分散性，據知，三元乙丙膠與丁苯膠、天然橡膠或聚丁二烯膠等并用時，分散狀態(tài)為微觀不均勻分散，與硫化體系無關。但ＮＲ／ＳＢＲ、ＮＲ／聚丁二烯并用體系同ＥＰＤＭ并用體系的摻和狀態(tài)基本上都是相同的。因而分散狀態(tài)并不是一個太大的問題，問題在于硫化特性方面，決定因素為橡膠的硫化速度和硫化程度，當采用硫化體系時還決定于雙鍵的數量、位置和分布，此外，還決定于ＥＰＤＭ第三單體的種類。 </p> <p> 當三元乙丙膠并用少量不飽和橡膠時強度比較低，其原因在于兩種橡膠的硫化速度不同，二烯類橡膠先行硫化，而ＥＰＤＭ卻還停留在未硫化狀態(tài)，因此，為要提高共硫化性，研究一下如何提高ＥＰＤＭ含量大的膠料的強度是有意義的。 </p> <span style="display:none;"></span><p> 2. EPDM在液壓制動用軟管和圓密封圈中的應用 </p> <p> 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膠層和制動泵中的密封圈的制作。此類產品接觸的主要介質是制動液，使用溫度在-40℃～120℃之間，短期耐熱溫度可達135℃。此類零件采用的EPDM，硬度（邵氏A為80其拉伸強度應在10.5MPa以上斷裂伸長率一般在175%以上；在伸長率50%下的定伸應力為2.5～4MPa；在伸長率**下的定伸應力為8MPa以上；壓縮變形（100℃，22h）應小于40%其玻璃化轉變溫度（TR）比較大為-50℃；耐臭氧老化（50pphm,拉伸20%，72h）應無裂紋；制動液試驗（將試樣放于制動液中，150℃，70h）其硬度變化應為5，拉伸強度變化應為±20%，伸長率變化應為-15%～20%，體積改變應在±5%；熱化試驗（125℃，70h），其硬度變化應為±5，拉伸強度變化應為±15%，伸長率的下降不能超過15%。用納米技術能夠在分子水平上重組物質結構，從而使新材料具有比傳統(tǒng)材料更優(yōu)越的性能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="KEP-350錦湖客戶至上,錦湖" src="http://tyunfile.71360.com/UpLoadFile/junyi/2019/7/637000893513896341/6370008935138963412710620.JPG"></div><p> EPDM在汽車暖氣、通風和空調管中的應用 </p> <p> 橡膠管一般分三層構成，即內層、中間加強層（化纖織物或鋼絲）及外層。三層所用材料應根據實際要求進行選擇。內層膠應耐所送介質的腐蝕，外層膠應具有機械強度，且適應外部所接觸的環(huán)境。因此，內、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***用于暖氣和通風管的內外膠層、空調軟管的外膠層，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）應小于40%；其玻璃化轉變溫度（TR）比較大為-45℃；耐臭氧老化（50pphm,拉伸20%，72h）應無裂紋；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%，體積改變應在80%之內；熱老化試驗（125℃，70h），其硬度變化應為±5，拉伸強度變化應為±15%，伸長率的下降不能超過40%。 </p> <p> 推薦使用牌號：錦湖KEP960N 三元乙丙橡膠的門尼粘度可以反映其分子量的大小，三元乙丙橡膠的門尼粘度范圍通常在20到100之間。錦湖KUMHO溴化丁基共混三元乙丙膠</p><p style="text-indent:25px">第三二烯烴類型的單體是通過乙烯和丙烯的共聚，在聚合物中產生不飽和，以便實現硫化。KEP-350錦湖客戶至上</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劑預處理棉短纖維（ＳＣＦ）種類、取向和用量對短纖維／橡膠復合材料（ＳＦＲＣ）力學性能和老化性能的影響。研究結果表明：與未處理ＳＣＦ相比，硅烷偶聯劑預處理的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／尼龍復合材料性能影響，結果表明，經表面特殊處理的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。KEP-350錦湖客戶至上</p><p style="text-indent:25px">上海君宜化工銷售中心（有限合伙）主要經營范圍是橡塑，擁有一支專業(yè)技術團隊和良好的市場口碑。公司業(yè)務涵蓋化工原料及產品，橡膠，炭黑，色母粒，彈性體等，價格合理，品質有保證。公司從事橡塑多年，有著創(chuàng)新的設計、強大的技術，還有一批獨立的專業(yè)化的隊伍，確保為客戶提供良好的產品及服務。上海君宜化工立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術理念，飛快響應客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2377374.html</p></div></div></div></div></div><div id="swifwdc" class="page-right twoColRt"><div id="hry3wyy" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="azrykrt" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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