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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxhxp/">精細(xì)化學(xué)品</a>?<a href="http://www.cdcfah.com/cp/second-jxhxp_bmhxj/">表面活性劑</a>?<a href="http://www.cdcfah.com/cp/third-bmhxj_fpxpj/">發(fā)泡、消泡劑</a>?北京YM-309發(fā)泡劑推薦咨詢上海雨木化工供應(yīng)</p><div id="mncaxlf" class="leftbox clearfix"><h1>北京YM-309發(fā)泡劑推薦咨詢上海雨木化工供應(yīng)</h1><div id="mfc3bxq" class="proBig"><div id="t3at3sa" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shymhg/637390599362615715/4870867.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hyg8gng" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shymhg/637390599362615715/4870867.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jtg0mks" 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>北京YM-309發(fā)泡劑,發(fā)泡劑</p><p><span>***更新：</span>2021-01-26 01:15:35</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="fiu80py" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海雨木化工有限公司</a></p><p><span>聯(lián)系人：</span>王保民</p><p><span>郵箱: </span>gggwkn@163.com</p><p><span>電話: </span>15800615685</p><p><span>傳真: </span>021_54852976</p><p><span>網(wǎng)址: </span>http://www.yumuhuagong.com</p><p><span>手機(jī): </span>021-57280030</p><p><span>地址: </span>龍皓路1018號(hào)1120</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="w3emze3" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="56u8ny3" class="box"><p><p style="text-indent:25px">隨著全球聚氨酯工業(yè)對(duì)ODP（臭氧消耗潛值）和GWP（全球變暖潛值）要求為零的綠色環(huán)保行動(dòng)步伐越來(lái)越快。其中正在大量使用的在聚氨酯發(fā)泡中作為必備原料之一的發(fā)泡劑產(chǎn)品都會(huì)對(duì)臭氧層造成一定的破壞，因此一場(chǎng)針對(duì)發(fā)泡劑的改變也是勢(shì)在必行。聚氨酯發(fā)泡劑主要有水和低沸點(diǎn)氟烴類化合物，軟質(zhì)聚氨酯泡沫塑料常用水或水和氟烴類的混合物作為發(fā)泡劑，通常水可使泡沫材料得到較大的開(kāi)孔率，北京YM-309發(fā)泡劑。也可以用二氯甲烷（MC）和一氟三氯甲烷（F-11）的混合發(fā)泡劑，降低密度，北京YM-309發(fā)泡劑，同時(shí)使鏈節(jié)中取代脲鍵的密度降低，北京YM-309發(fā)泡劑，增加柔韌性。廣義的發(fā)泡劑的發(fā)泡倍數(shù)（產(chǎn)泡能力）、泡沫穩(wěn)定性（可用性）等技術(shù)性能沒(méi)有嚴(yán)格的要求。北京YM-309發(fā)泡劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京YM-309發(fā)泡劑,發(fā)泡劑" src="https://tyunfile.71360.com/UploadFile/shymhg/637390599362615715/4870867.png"></div><p style="text-indent:25px">發(fā)泡劑好不好用？在使用時(shí)，會(huì)產(chǎn)生一些刺激性氣味，不過(guò)起到作用后，便不會(huì)有任何味道。操作工藝簡(jiǎn)單，不需要掌握獨(dú)特技能便可以起到好的效果。在市面上，不缺乏質(zhì)量好的發(fā)泡劑。只要認(rèn)真選擇，仔細(xì)使用，便不會(huì)有隱患出現(xiàn)。而且成本不高，即便偶爾浪費(fèi)一點(diǎn)點(diǎn)，也不會(huì)心疼。目前二氧化碳發(fā)泡劑主要用于對(duì)絕熱性要求不高的供熱管道保溫、包裝泡沫塑料和農(nóng)用泡沫塑料等領(lǐng)域。液體二氧化碳發(fā)泡優(yōu)缺點(diǎn)與水發(fā)泡相同，目前主要用于聚氨酯軟泡，用于硬泡可以克服水發(fā)泡增加了異氰酸酯的消耗量、泡沫塑料發(fā)脆和與基材粘接性差等缺點(diǎn)。但是液體發(fā)泡要對(duì)發(fā)泡機(jī)進(jìn)行改進(jìn)，液體二氧化碳儲(chǔ)運(yùn)費(fèi)用增加，目前液體二氧化碳發(fā)泡技術(shù)尚在不斷研究與發(fā)展之中。北京YM-309發(fā)泡劑物理發(fā)泡劑主要是通過(guò)發(fā)泡劑物理狀態(tài)的變化來(lái)形成塑料中的泡孔的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京YM-309發(fā)泡劑,發(fā)泡劑" src="https://tyunfile.71360.com/UploadFile/shymhg/637395051765557349/8626548.png"></div><p style="text-indent:25px">在塑料中加入一些填料，就可使塑料某些性能得到改進(jìn)，由此更適合于某些專門(mén)用途。為了降低塑料的密度和硬度，或者增強(qiáng)它的隔熱性或隔音性，則較理想的填料就是空隙。含有空隙或泡孔的塑料，分類為泡沫塑料。隨著發(fā)泡的程度，也就是空隙造成的泡沫的體積份額的差異，泡沫塑料的性能與基礎(chǔ)塑料可能有相當(dāng)大的差別。發(fā)泡劑是一種化學(xué)品，可加到塑料中，在加工過(guò)程的適當(dāng)時(shí)間，它即會(huì)放出氣體，使塑料中形成泡孔。發(fā)泡劑必須完全均勻地分散在聚合物內(nèi)，聚合物通常呈液體或熔融態(tài)。發(fā)泡劑此時(shí)在聚合物中可以形成真正的溶液，或者**是均勻地分散在聚合物中，形成二相系統(tǒng)。第二階段，大量單個(gè)的氣泡形成后，該系統(tǒng)即轉(zhuǎn)變成一個(gè)氣體分散在液體中的系統(tǒng)了。此時(shí)往往要加入核化劑，以促進(jìn)大量小氣泡形成。核化劑一般是極細(xì)的惰性顆粒，它們?yōu)樾職庀嗟男纬商峁┎课弧?/p><p style="text-indent:25px">發(fā)泡劑當(dāng)聚合物粘度增加，泡孔不能再增長(zhǎng)時(shí)，泡沫就會(huì)穩(wěn)定住。采用冷卻、交聯(lián)或其它方法都可以增加聚合物粘度。發(fā)泡過(guò)程的后三個(gè)階段，從時(shí)間來(lái)看，則可短至幾分之一秒，較長(zhǎng)也不會(huì)超過(guò)幾秒鐘。泡沫的形成，要求聚合物呈液態(tài)。為此，可通過(guò)加熱溶解或塑化聚合物。泡沫塑料的生產(chǎn)過(guò)程幾乎與任何普通塑料生產(chǎn)過(guò)程一樣，通常經(jīng)過(guò)擠塑、滾塑和注塑，以及增塑糊加工和熱成型等過(guò)程。出于同樣原因，基本上任何種類的塑料都能制成泡沫塑料。聚氯乙烯（硬質(zhì)和軟質(zhì)都可）、聚苯乙烯、聚丙烯、ABS和聚乙烯，都已工業(yè)規(guī)模地制成泡沫塑料。耐熱工程塑料和熱固性聚合物也是如此。不同類型的發(fā)泡劑有著不同的起泡力，泡沫穩(wěn)定性也不盡相同。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京YM-309發(fā)泡劑,發(fā)泡劑" src="https://tyunfile.71360.com/UploadFile/shymhg/637395051728213600/8542769.png"></div><p style="text-indent:25px">發(fā)泡劑是用以使橡膠、塑料等分子材料發(fā)孔的一類物質(zhì)。它主要用于制備海綿制品，泡沫塑料和空心制品。原則上，凡不與高等分子材料發(fā)生化學(xué)反應(yīng)，并能在特定條件下產(chǎn)生無(wú)害氣體的物質(zhì)，都能用作發(fā)泡劑或發(fā)泡助劑。對(duì)發(fā)泡劑來(lái)說(shuō)，總的要求是無(wú)毒或低毒，分解溫度適宜，易于在高的分子材料中分散及發(fā)孔率高等。發(fā)泡助劑的作用是降低發(fā)泡劑的分解溫度，幫助發(fā)泡劑分散，或提高發(fā)氣量。按化學(xué)組分，發(fā)泡劑和發(fā)泡助劑有無(wú)機(jī)和有機(jī)兩大類；按發(fā)泡劑所產(chǎn)生的氣體分，有氫氣和二氧化碳兩大類。目前，橡膠工業(yè)普遍采用的是有機(jī)類發(fā)泡制。較早的化學(xué)發(fā)泡劑（大約在1850年）是簡(jiǎn)單的無(wú)機(jī)碳酸鹽和碳酸氫鹽。北京YM-309發(fā)泡劑</p><p style="text-indent:25px">化學(xué)發(fā)泡劑是那些經(jīng)加熱分解后能釋放出二氧化碳和氮?dú)獾葰怏w，并在聚合物組成中形成細(xì)孔的化合物。北京YM-309發(fā)泡劑</p><p style="text-indent:25px">表面活性劑通常分為四大類：陰離子，陽(yáng)離子，非離子和兩性離子（雙電子）。表面活性劑系統(tǒng)的熱動(dòng)力學(xué)很重要，不論是理論上還是實(shí)踐上。因?yàn)楸砻婊钚詣┫到y(tǒng)表示的是介于有序和無(wú)序物質(zhì)狀態(tài)之間的系統(tǒng)。表面活性劑溶液可能含有有序相（膠束）和無(wú)序相（自由表面活性劑分子和/或離子）。膠束——表面活性劑分子的親脂尾端聚于膠束內(nèi)部，避免與極性的水分子接觸；分子的極性親水頭端則露于外部，與極性的水分子發(fā)生作用，并對(duì)膠束內(nèi)部的憎水基團(tuán)產(chǎn)生保護(hù)作用。形成膠束的化合物一般為兩親分子，因此一般膠束除可溶于水等極性溶劑以外，還能以反膠束的形式溶于非極性溶劑中。北京YM-309發(fā)泡劑</p><p style="text-indent:25px">上海雨木化工有限公司致力于精細(xì)化學(xué)品，是一家生產(chǎn)型公司。公司業(yè)務(wù)涵蓋氟碳表面活性劑，油田助排劑，消防發(fā)泡劑，消防抗溶劑等，價(jià)格合理，品質(zhì)有保證。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠(chéng)信為本的理念，打造精細(xì)化學(xué)品良好品牌。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3009717.html</p></div></div></div></div></div><div id="yikfj6q" class="page-right twoColRt"><div id="3mzhlr8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="tl8bvaw" class="recomPic likePro"><a 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