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clearfix"><h1>山東YM-305A發(fā)泡劑歡迎咨詢上海雨木化工供應(yīng)</h1><div id="po3elsj" class="proBig"><div id="zonof7u" 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="5sovx2i" 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="v8u3rof" 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>山東YM-305A發(fā)泡劑,發(fā)泡劑</p><p><span>***更新：</span>2020-11-25 07:24:50</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="cwyfh3m" 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: </span>021-57280030</p><p><span>地址: </span>龍皓路1018號1120</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="cbi8fm3" class="page-proshow02"><p class="title">詳細說明</p><div id="vjqizb9" class="box"><p><p style="text-indent:25px">化學(xué)發(fā)泡劑又有無機發(fā)泡劑和有機發(fā)泡劑之分。有機發(fā)泡劑主要有以下幾類：1．偶氮化合物；2．磺酰肼類化合物；3．亞硝基化合物。無機發(fā)泡劑主要有以下類別：碳酸鹽：一種無機發(fā)泡劑，使用較多的主要是碳酸鈣、碳酸鎂、碳酸氫鈉。其中碳酸氫鈉是白色粉末，比重2.16。分解溫度約為100-140℃，并放出部分CO2，到270℃時失去全部CO2。溶于水而不溶于醇。水玻璃：即硅酸鈉，與玻璃粉料混合并加熱到850℃左右時，與玻璃反應(yīng)并放出大量氣體，同時能加強材料抗壓和抗拉強度，主要作為制備泡沫玻璃的發(fā)泡劑使用。碳化硅：當前泡沫玻璃工業(yè)生產(chǎn)中所使用的主要發(fā)泡劑，山東YM-305A發(fā)泡劑，800-900℃燒結(jié)時放出大量氣體，山東YM-305A發(fā)泡劑，山東YM-305A發(fā)泡劑。碳黑：也是一種非常好用的發(fā)泡劑，加熱放出CO2，發(fā)泡效果好。發(fā)泡劑的分解溫度同樹脂的熔融溫度應(yīng)一致。山東YM-305A發(fā)泡劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東YM-305A發(fā)泡劑,發(fā)泡劑" src="https://tyunfile.71360.com/UploadFile/shymhg/637390599362615715/4870867.png"></div><p style="text-indent:25px">有機發(fā)泡劑與無機發(fā)泡劑相反，可供選擇的有機化學(xué)發(fā)泡劑品種繁多，物理形態(tài)也各自不同。過去一些年來曾評價過數(shù)百種可能用作發(fā)泡劑的有機化學(xué)品。用來評判的準則也很多。較重要的幾條是：在可控制速度和可預(yù)計溫度的條件下，所釋放的氣體不僅量大，而且再現(xiàn)性好；反應(yīng)產(chǎn)生的氣體和固體均為無毒者，而且對于發(fā)泡的聚合物不能有任何不良影響，例如，產(chǎn)生顏色或不良氣味；之后，是成本問題，這也是相當重要的一條準則。當今工業(yè)上使用的那些發(fā)泡劑，是較符合上述這些準則的。安徽硫氧鎂發(fā)泡劑動物性水泥發(fā)泡劑以精選的動物(牛、羊)角質(zhì)蛋白為主要原材料。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東YM-305A發(fā)泡劑,發(fā)泡劑" src="https://tyunfile.71360.com/UploadFile/shymhg/637390599324178042/8465907.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)生無害氣體的物質(zhì)，都能用作發(fā)泡劑或發(fā)泡助劑。對發(fā)泡劑來說，總的要求是無毒或低毒，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)泡助劑有無機和有機兩大類；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)普遍采用的是有機類發(fā)泡制。</p><p style="text-indent:25px">另外一類常用的物理發(fā)泡劑，即烴類，相對來說對臭氧層沒有什么影響。然而它們的使用也不是沒有法規(guī)限制的。烴類的釋放也和其它揮發(fā)性有機化合物（VOCS）一樣，要受到法律的限制，因為它們的釋放物會危害低層大氣層，特別是生成了臭氧。法規(guī)的嚴厲性在各地區(qū)是有區(qū)別的，這要根據(jù)當?shù)乜諝赓|(zhì)量而定。此外還應(yīng)考慮到烴的易燃性。在作任何采用烴類為發(fā)泡劑的工廠設(shè)計時，這一點應(yīng)為重要考慮因素。較普遍用作發(fā)泡劑的烴類是丁烷和正戊烷。廣義的發(fā)泡劑和狹義的發(fā)泡劑發(fā)泡劑有廣義與狹義兩個概念。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東YM-305A發(fā)泡劑,發(fā)泡劑" src="https://tyunfile.71360.com/UploadFile/shymhg/637395051728213600/8542769.png"></div><p style="text-indent:25px">為制成特低密度泡沫塑料（密度低至10lb/cu.ft.左右）采用氯氟烴和烴類發(fā)泡劑效果較佳。其主要原因有兩個。一是由于所需發(fā)泡劑之量極大（有時達到基質(zhì)樹脂重量的20%或更多），而這類發(fā)泡劑要比化學(xué)發(fā)泡劑便宜，這就補償了設(shè)備上的較高費用；二是與泡沫穩(wěn)定化的熱力學(xué)相關(guān)。正如本文前面談到的，要使一個泡沫穩(wěn)定化，必須在出現(xiàn)塌陷之前就得改變聚合物熔體的粘度。使用較普遍的烴類和氯氟烴類發(fā)泡劑，實際上可以降低它們所用于的聚合物的熔體粘度。當它們發(fā)生汽化而脫離聚合物溶液時，熔體的粘度升高了，就可減少為穩(wěn)定泡沫所需的冷卻費用。對于特低密度的泡沫塑料來說，這一點尤其重要。由于液體蒸發(fā)是一個吸熱過程，因而用揮發(fā)性物理發(fā)泡劑時體系溫度容易控制，可防止聚合物的熱降解。安徽硫氧鎂發(fā)泡劑</p><p style="text-indent:25px">YM-309發(fā)泡效果好，產(chǎn)生的泡沫豐富細膩、性能穩(wěn)定。山東YM-305A發(fā)泡劑</p><p style="text-indent:25px">發(fā)泡劑的實質(zhì)就是它的表面活性作用。沒有表面活性作用，就不能發(fā)泡，也就不能成為發(fā)泡劑，表面活性是發(fā)泡的關(guān)鍵。常用的表面活性劑類發(fā)泡劑有：1．十二烷基硫酸鈉（K12）；2．脂肪醇聚氧乙烯醚硫酸鈉（AES）；3.松香皂類發(fā)泡劑；4．動植物蛋白類發(fā)泡劑；5．紙漿廢液等。廣義的發(fā)泡劑和狹義的發(fā)泡劑發(fā)泡劑有廣義與狹義兩個概念。這兩個概念是有一定的差別的，它可以區(qū)分非應(yīng)用性的發(fā)泡劑與應(yīng)用性發(fā)泡劑。廣義的發(fā)泡劑是指所有其水溶液能在引入空氣的情況下大量產(chǎn)生泡沫的表面活性劑或表面活性物質(zhì)。因為大多數(shù)表面活性劑與表面活性物質(zhì)均有大量的起泡的能力，因此，廣義的發(fā)泡劑包含了大多數(shù)表面活性劑與表面活性物質(zhì)。因而，廣義的發(fā)泡劑的范圍很大，種類很多，其性能品質(zhì)相差很大，具有非常普遍的選擇性。山東YM-305A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化學(xué)品，以科技創(chuàng)新實現(xiàn)***管理的追求。公司自創(chuàng)立以來，投身于氟碳表面活性劑，油田助排劑，消防發(fā)泡劑，消防抗溶劑，是精細化學(xué)品的主力軍。雨木化工有限公司致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗。雨木化工有限公司始終關(guān)注自身，在風(fēng)云變化的時代，對自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使雨木化工有限公司在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2137173.html</p></div></div></div></div></div><div id="m23lmim" class="page-right twoColRt"><div id="rbiz3kb" class="box01 margin10 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