主營:漂珠,空心微珠,空心微珠,空心玻璃微珠,空心玻璃微珠
所在地:
山東 青島
產(chǎn)品價格:
電議(大量采購價格電議)
最小起訂:
1
物流運費:
買家承擔運費
發(fā)布時間:
2013-02-17
有效期至:
2013-03-17
產(chǎn)品詳細
<p>環(huán)氧樹脂具有粘結(jié)性好、強度高、無毒、常溫固化、可發(fā)泡以及穩(wěn)定性好等特點。以其為基料,添加空心微珠,并用鋁粉發(fā)泡,可制成環(huán)氯泡沫保溫材料。這種保溫材料具有保溫性好、吸水性小、無毒、耐熱性及防火性好等優(yōu)點,并兼有吸聲及阻尼效果。該材料的研究和應(yīng)用,彌補了我國有機保溫材料防火性差、有毒性以及適用范圍窄等不足。它在建筑、交通、工業(yè)及國防等領(lǐng)域具有廣闊的應(yīng)用.</p> <p><span style="font-size: 9pt; font-family: 宋體; mso-bidi-font-family: 宋體; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-size: 9pt; font-family: 宋體; mso-bidi-font-family: 宋體; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-size: small;">?。?)</span></span><span style="font-size: 9pt; font-family: 宋體; mso-bidi-font-family: 宋體; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-size: small;">雙酚<span>A</span>環(huán)氧樹脂</span><span><br /></span><span style="font-size: small;"> (2)固化劑。采用<span>2</span>種固化劑:聚酰胺固化劑<span>(</span>固化劑<span>-1)</span>及脂肪酸改性多元胺固化劑<span>(</span>固化劑<span>-2)</span>進行實驗。</span><span><br /><span style="font-size: small;"> (3)</span></span><span style="font-size: small;">發(fā)泡材料。一般國產(chǎn)有機發(fā)泡劑的毒性較大,不能采用;而鋁粉在堿性條件下反應(yīng),生成的氫氣及<span>A1(OH)3</span>膠體,均無毒,<span>A1(OH)3</span>還有很好的阻燃性,對提高保溫材料的阻燃性有益。故采用鋁粉和<span>NaOH</span>溶液為發(fā)泡材料。</span><span><br /><span style="font-size: small;"> (4)</span></span><span style="font-size: small;">空心微珠。提高保溫材料孔隙率是改善保溫材料性能的有效措施之一。提高孔隙率可以采用以下<span>2</span>種方法:一是發(fā)泡,二是選用空心填料。單純依靠發(fā)泡來提高孔隙率會造成材料的強度及硬度降低,力學性能下降。因此,在發(fā)泡的同時,有必要引入合適的空心微珠作填料,在不影響力學性能的基礎(chǔ)上,改善保溫性能。常用的空心微珠有:空心玻璃微珠、活性碳、漂珠和酚醛微珠等。實驗時我們對前<span>3</span>種空心微珠進行了研究??招奈⒅橹笜耍孩倏招牟A⒅椋毫?lt;span>10~180µm</span>,堆積密度<span>120kg</span>/<span>m3</span>;②活性炭:粒徑<span>1.0~2.5mm</span>,堆積密度<span>250 kg</span>/<span>m3</span>;③漂珠:<span>0</span>.<span>1~1mm</span>,堆積密度<span>260 Kg</span>/<span>m3</span>。</span><span><br /><span style="font-size: small;"> (5)</span></span><span style="font-size: small;">其它材料。采用<span>95</span>%乙醇<span>(</span>工業(yè)純<span>)</span>為稀釋劑.</span><span><br /></span><span style="font-size: small;"><span> </span></span></span></span></p> <p><span style="font-size: 9pt; font-family: 宋體; mso-bidi-font-family: 宋體; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-size: 9pt; font-family: 宋體; mso-bidi-font-family: 宋體; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-size: small;"><span> </span>工藝及成型</span><span><br /></span><span style="font-size: small;"> 將環(huán)氧樹脂用乙醇稀釋,加入鋁粉、空心微珠及固化劑,攪拌均勻;然后滴人適量<span>NaOH</span>溶液,迅速攪拌均勻,將形成的混合料注入模具中;混合料在<span>60~110min</span>以內(nèi)逐漸發(fā)泡、膨脹并硬化成型,脫模后即為所需保溫材料。</span><span><br /></span><span style="font-size: small;">工藝參數(shù):成型溫度和濕度:<span>10~30<span><span>℃</span></span><span>,相對濕度70</span></span>%<span>~95</span>%;攪拌:轉(zhuǎn)速<span>300</span>次/<span>min</span>,時間<span>10min</span>;澆注成型,固化時間<span>60~110</span></span></span></span></p> <p><span style="font-size: 9pt; font-family: 宋體; mso-bidi-font-family: 宋體; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-size: 9pt; font-family: 宋體; mso-bidi-font-family: 宋體; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-size: small;"></span></span></span> </p> <p><span style="font-size: 9pt; font-family: 宋體; mso-bidi-font-family: 宋體; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-size: 9pt; font-family: 宋體; mso-bidi-font-family: 宋體; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span style="font-size: small;"><span><span style="font-size: 12pt; font-family: 宋體; mso-bidi-font-family: 宋體; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"> 空心微珠的影響<span><br /></span>解決保溫性能與其它性能矛盾的有效措施是引入空心微珠??招奈⒅楸旧硎嵌嘧涌椎?lt;span>(</span>且孔隙封閉<span>)</span>,堆積密度小,可明顯提高材料的孔隙率,并且填充粗大孔隙,使材料的孔隙構(gòu)造發(fā)生變化,在改善保溫性能的同時,不會造成吸水率增大或強度降低</span></span></span></span></span></p>
青島海瀚亞納米新材料有限公司
聯(lián)系人:
于勇 (聯(lián)系時請告訴我是"中玻網(wǎng)"看到的 信息,會有優(yōu)惠哦!謝謝?。?/em>
郵箱:
qingdaoyy@126.com
網(wǎng)址:
www.qingdaohaihan.cn
聯(lián)系地址:
人民路27號