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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/first-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-huagong_wjfjscl/">無機(jī)非金屬材料</a>?<a href="http://www.cdcfah.com/cp/third-wjfjscl_wjfhcl/">無機(jī)復(fù)合材料</a>?江蘇冶金碳黑上海立升實(shí)業(yè)供應(yīng)</p><div id="d7jn22f" class="leftbox clearfix"><h1>江蘇冶金碳黑上海立升實(shí)業(yè)供應(yīng)</h1><div id="selje9g" class="proBig"><div id="dtcxb7m" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shhlssy/2019/8/637007715042287158/6370077150422871585295640.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="repeyjv" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/shhlssy/2019/8/637007715042287158/6370077150422871585295640.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="p71knzk" 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>江蘇冶金碳黑,碳黑</p><p><span>***更新：</span>2021-02-04 10:04:43</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="yqav3s4" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海立升實(shí)業(yè)有限公司</a></p><p><span>聯(lián)系人：</span>程先生</p><p><span>郵箱: </span>359128112@qq.com</p><p><span>電話: </span>15800327189</p><p><span>傳真: </span>021_34090395</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-31001391</p><p><span>地址: </span>上海閔行區(qū)瓶安路1358號(hào)</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="sn6lpvg" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="rntsmbl" class="box"><p><p> 著色力 </p> <p> 碳黑的著色力通常是用百分?jǐn)?shù)的形式來表現(xiàn)，可以通過使用黑度反射儀測(cè)量碳黑沖淡色漿得出的數(shù)據(jù)來衡量。根據(jù)工業(yè)標(biāo)準(zhǔn)操作，色漿為碳黑和鈦白 </p> <p> （或其他白色顏料如氧化鋅）及一定溶劑的混合物。 </p> <p> （著色力的測(cè)量參照 ASTM D-3849 或 GB/T7046-2003標(biāo)準(zhǔn)） </p> <p> 比表面積 </p> <p> 炭黑比表面積是指單位質(zhì)量或單位體積內(nèi)炭黑粒子表面積的總和，單位為m2/g 。比表面積與粒徑一樣是炭黑的基本性能之一。對(duì)表面光滑的炭黑來說，比表面積與粒徑成反比，即粒徑越小比表面積越大，反之亦然。所以，如把炭黑粒子假定為球形，可由粒徑的數(shù)據(jù)計(jì)算比表面積。橡膠用炭黑粒子表面一般是比較光滑的，無孔的。粒子較細(xì)的中超耐磨炭黑表面帶有少量微孔。色素炭黑由于生成條件或經(jīng)后處理，表面有一定程度氧化，粒子表面積大于相同粒徑的橡膠用炭黑，江蘇冶金碳黑。 </p> <p> 炭黑的比表面積分為外比表面積（或稱光滑比表面積），內(nèi)比表面積（或稱孔隙內(nèi)比表面積）和總比表面積?？偙缺砻娣e等于外比表面積和內(nèi)比表面積的總和。比表面積的測(cè)定方法很多，常用的有氮吸附法（BET法）,吸碘值法，江蘇冶金碳黑，江蘇冶金碳黑，CTAB法（大分子吸附 </p> <p> 法），t值法以及電子顯微鏡法等。世界橡膠工業(yè)原材料耗用量排在***位的是生膠，第二位的是炭黑。江蘇冶金碳黑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇冶金碳黑,碳黑" src="http://tyunfile.71360.com/UpLoadFile/shhlssy/2019/8/637007715042287158/6370077150422871585295640.jpg"></div><p style="text-indent:25px">導(dǎo)電炭黑的隧道效應(yīng)是什么決定的？不清楚大家是否有關(guān)注，**近用電子顯微鏡觀察拉伸狀態(tài)的橡膠不存在炭黑鏈鎖，卻仍有導(dǎo)電現(xiàn)象，立升導(dǎo)電炭黑廠家認(rèn)可這就是隧道效應(yīng)。其主要論點(diǎn)認(rèn)為，導(dǎo)電性是由導(dǎo)電炭黑粒子的隧道決定的。同時(shí)并有試驗(yàn)證明，隨著導(dǎo)電炭黑粒子間距的增大，體積電阻亦隨之升高。還有電場(chǎng)放射導(dǎo)電機(jī)理，是因?yàn)樵谘芯繉?dǎo)電炭黑填充的高分子材料的電壓，電流特性時(shí)，發(fā)現(xiàn)其結(jié)果不符合歐姆定律，認(rèn)為其所以如此，是由于炭黑粒子間產(chǎn)生高的電場(chǎng)強(qiáng)度而發(fā)生電流導(dǎo)致電場(chǎng)放射。綜上所述，無論從哪種導(dǎo)電機(jī)理來理解，都認(rèn)為導(dǎo)電炭黑的種類和配合量是支配材料**終所表現(xiàn)的導(dǎo)電性的主要因素。海南碳黑涂料粉末表面積非常大，范圍從10~3000m2/g，是含碳物質(zhì)在空氣不足的條件下經(jīng)不完全燃燒或受熱分解而得的產(chǎn)物。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇冶金碳黑,碳黑" src="http://tyunfile.71360.com/UpLoadFile/2019/8/8/21/637008955391718328_shhlssy_5816977.jpg"></div><p style="text-indent:25px">1）燈黑生產(chǎn)工藝歷史上**早的炭黑生產(chǎn)法是燈黑生產(chǎn)工藝，在該工藝過程中，原料在直徑大至1.5 m的平坦的燃燒鐵盤上燃燒，含有炭黑的燃燒氣體由內(nèi)鋪有磚塊的排氣罩收集，然后通過彎管（彎折1/4）和通火管到達(dá)沉積的裝置。為了控制所產(chǎn)炭黑的特性，應(yīng)當(dāng)保證在燃燒盤和排氣罩之間的間隙附近，原料主要作不完全燃燒。而在稍進(jìn)管道里面，燃燒在氧氣不足下發(fā)生熱烈解，因而形成較大的炭黑顆粒，由于這些原因，組成較寬范圍的粒徑分布，主要特征為顆粒粗大。由于在燃燒盤和排氣罩間隙間形成的顆粒只有小部分能與空氣中的氧份接觸，因此這些炭黑只有少量的表面氧化物，相應(yīng)的pH值呈中性，并且揮發(fā)份極少。</p><p style="text-indent:25px">色素炭黑哪些特點(diǎn)會(huì)影響涂料生產(chǎn) 顏料自身的性能對(duì)涂料有沒有影響？答案是肯定的！但是主要是色素炭黑的哪些性能在影響涂料呢？這個(gè)要依據(jù)碳黑自身的特點(diǎn)慢慢地分析。首先，碳黑自身原始粒徑的大小就是一個(gè)主要原因。關(guān)于原始粒徑對(duì)碳黑性能的影響，就不在一一贅述。在涂料中，碳黑的原始粒徑的的不同，對(duì)涂料的影響主要表現(xiàn)為，原始粒徑越小，黑度值越高，與其相反，碳黑的原始粒徑越大，黑度值也就相對(duì)較低了。這種情況也同樣表現(xiàn)在相對(duì)著色力上。在制作黑色涂料時(shí)，碳黑的原始粒徑不同還影響其分散性，在體積相同的情況下，原始粒徑較小的色素碳黑，其比表面積較大，由于碳黑之間的空隙較多，在潤濕的時(shí)候，也就需要更長的時(shí)間，可以總結(jié)為潤濕性比較差。在分散時(shí)比較好選用性能較好地分散劑以及分散設(shè)備，將其分散到比較好效果，充分體現(xiàn)出其黑度。要形成穩(wěn)定的分散體系，還要有足夠長的溶劑化鏈段，也就是分散劑要有合適的分子量，這樣在涂料儲(chǔ)存過程中，色素炭黑顆粒才不會(huì)因?yàn)椴祭蔬\(yùn)動(dòng)產(chǎn)生的碰撞而重新絮凝成大的顆?；蛘哐娱L絮凝返粗產(chǎn)生的時(shí)間。色素用炭黑—國際上，根據(jù)炭黑的著色能力，通常分為三類。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇冶金碳黑,碳黑" src="http://tyunfile.71360.com/UpLoadFile/shhlssy/2019/8/637007714168518610/6370077141686748578026888.jpg"></div><p style="text-indent:25px">炭黑的粒徑顏料炭黑的粒子細(xì)度可低至5 nm，一般說來，炭黑粒子不是孤立存在的，而是多個(gè)粒子通過碳晶層互相穿插，形成鏈枝狀。不同生產(chǎn)工藝可得到粒徑范圍極廣的炭黑粒子，燈黑生產(chǎn)工藝得到的產(chǎn)品相對(duì)粗糙，而氣黑生產(chǎn)工藝可得到精細(xì)的產(chǎn)品。用爐黑生產(chǎn)工藝可得到幾乎所有粒徑范圍的炭黑，同一品種的炭黑，其粒子大小并不完全相同，呈現(xiàn)一個(gè)粒徑分布范圍。一般來說，粒子較細(xì)的品種，粒徑分布較窄。炭黑的生產(chǎn)工藝不同，則表面的化學(xué)性能也有差別。大多數(shù)炭黑的真實(shí)表面積大于由粒徑計(jì)算出的幾何表面積。這是由于炭黑特別是粒徑小于25nm的炭黑表面存在許多微孔。顏料炭黑的粒子細(xì)度可低至5 nm，炭黑粒子不是孤立存在的，而是多個(gè)粒子通過碳晶層互相穿插，形成鏈枝狀。江蘇冶金碳黑</p><p style="text-indent:25px">由于在觀察的那一面缺少藍(lán)光成分，著色層在透射過程中觀察時(shí)，便呈現(xiàn)棕**調(diào)。江蘇冶金碳黑</p><p> 二、紫外線防護(hù)性的應(yīng)用 </p> <p> 炭黑在塑料工業(yè)中用途之一是防紫外光老化，由于炭黑有較高的吸光性，因而能有效的防止塑料受陽光照射而產(chǎn)生光氧化降解。炭黑作為紫外光穩(wěn)定劑在塑料中所起的作用有：把光能轉(zhuǎn)化為熱能；保護(hù)塑料表面而免遭一定波長的射線照射；截取原子團(tuán)而產(chǎn)生防老化作用，從而阻止催化降解。紫外線對(duì)聚烯烴特別有害，試驗(yàn)證明當(dāng)一定細(xì)度的炭黑的濃度為百分之二時(shí)可以達(dá)到完美的紫外線屏蔽作用。 </p> <p> 炭黑對(duì)塑料的紫外線老化的防護(hù)作用，取決于炭黑的粒徑、結(jié)構(gòu)和表面化學(xué)性。 </p> <p> 炭黑的粒徑較小時(shí)，因表面積增大，其吸收光或遮光能力增加，故紫外線防護(hù)作用增強(qiáng)，但粒徑小于20nm，其防護(hù)作用趨于同一水平，原因是當(dāng)粒徑過小時(shí)，逆向散射減小，而繼續(xù)向前的光會(huì)威脅聚合物的穩(wěn)定性。 </p> <p> 結(jié)構(gòu)較低，即聚集體尺寸較小時(shí)，因聚集體幾何體積較小，會(huì)增強(qiáng)對(duì)聚合物的防護(hù)作用，這也是結(jié)構(gòu)較低的炭黑較黑的原因。 </p> <p> 炭黑表面含氧基團(tuán)較多，即揮發(fā)份較高時(shí)，能消除聚合物分解時(shí)產(chǎn)生的基因，因此防護(hù)作用也增強(qiáng)。江蘇冶金碳黑</p><p style="text-indent:25px">上海立升實(shí)業(yè)有限公司是一家有著雄厚實(shí)力背景、信譽(yù)可靠、勵(lì)精圖治、展望未來、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)的化工行業(yè)中積累了大批忠誠的客戶粉絲源，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**上海立升實(shí)業(yè)有限和您一起攜手步入輝煌，共創(chuàng)佳績，一直以來，公司貫徹執(zhí)行科學(xué)管理、創(chuàng)新發(fā)展、誠實(shí)守信的方針，員工精誠努力，協(xié)同奮取，以品質(zhì)、服務(wù)來贏得市場(chǎng)，我們一直在路上！</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3158764.html</p></div></div></div></div></div><div id="3o3skf2" class="page-right twoColRt"><div id="dddr8kw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="t8caos2" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" 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