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class="home-main container clearfix"><div id="xp8oxdz" class="twoCol"><div id="7vrdpqm" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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_gyhwzx/">過(guò)氧化物</a>?<a href="http://www.cdcfah.com/cp/third-gyhwzx_qtgyhw/">其他過(guò)氧化物</a>?浙江固化劑哪種好歡迎咨詢江陰泉林化學(xué)品供應(yīng)</p><div id="gocdpq3" class="leftbox clearfix"><h1>浙江固化劑哪種好歡迎咨詢江陰泉林化學(xué)品供應(yīng)</h1><div id="ocdpl3a" class="proBig"><div id="bpqhntk" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/Jyquanlin/637286280025732422/7457225.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="qofgc8s" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/Jyquanlin/637286280025732422/7457225.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vyughne" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>浙江固化劑哪種好,固化劑</p><p><span>***更新：</span>2020-07-03 18:24:37</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="c8seag8" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江陰泉林化學(xué)品有限公司</a></p><p><span>聯(lián)系人：</span>葉奇</p><p><span>郵箱: </span>63173667@QQ.COM</p><p><span>電話: </span>13861290603</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0510-86658688</p><p><span>地址: </span>常澄路1號(hào)16樓1617-1620</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="2vgcye8" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="t4ntu3o" class="box"><p><p> 過(guò)氧化環(huán)己酮（是多種氫過(guò)氧化物的混合物） </p> <p> 其中以第（Ⅰ）種結(jié)構(gòu)為主。 </p> <p> 過(guò)氧化環(huán)己酮溶解在二丁酯中，浙江固化劑哪種好，成為 50%的糊狀物，稱為 1#固化劑。 <p> <p> 過(guò)氧化二苯甲酰（是一種過(guò)氧化物，簡(jiǎn)稱 BPO） </p> <p> 過(guò)氧化二苯甲酰溶解在二丁酯中，成為 50%的糊狀物，稱為 2#固化劑 <p> 過(guò)氧化甲乙酮（簡(jiǎn)稱 MEKP） </p> <p> 這是一種液態(tài)固化劑，浙江固化劑哪種好，一般配成有效成份為 50%的二甲酯溶液，就是市售的 5#固化劑，浙江固化劑哪種好。 </p> <p> 在有效成份中，同樣，不是單一化合物，而是由多種分子結(jié)構(gòu)的氫過(guò)氧化物的混合物： </p> </p> <p> <br /> </p> </p> <p> <br /> </p> </p> <p> <br /> </p> <p> <br /> 要有足夠的固化劑的加入量，以保證足夠的放熱峰溫度，從而達(dá)到較高的固化程度。浙江固化劑哪種好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江固化劑哪種好,固化劑" src="https://tyunfile.71360.com/WaterMark/UploadFile/Jyquanlin/637286280025732422/7457225.png"></div><p> 當(dāng)然也會(huì)有其他導(dǎo)致樹脂變黃的原因。總的來(lái)說(shuō)熱氧和紫外線是黃變的主要原因。采用飽和二元酸(或酸酐)代替芳香族二元酸(或酸酐)，雖然可以在一定程度上使樹脂顏色淺一點(diǎn)，但考慮到樹脂性能、成本等各方面的因素，所以此法也是不夠理想的。 </p> <p> 據(jù)**介紹，除了在生產(chǎn)、儲(chǔ)存過(guò)程中充惰性氣體盡可能隔絕與氧氣的接觸外，更有效的方法是添加抗氧劑與紫外線吸收劑，可有效地防止與延遲聚酯發(fā)生黃變。推薦的不飽和樹脂抗黃變解決方案是：選用不含胺類的抗氧劑，而采用主輔抗氧劑復(fù)配使用，主抗氧劑通常為受阻酚類，可以捕捉過(guò)氧化自由基；輔助抗氧劑則為亞磷酸酯類，在分解氫過(guò)氧化物的同時(shí)還能螯合金屬離子，防止樹脂氧化變色。如果想進(jìn)一步提高耐黃變、耐候性，建議再添加紫外線吸收劑進(jìn)去，添加紫外線吸收劑能有效***高分子材料，在紫外線作用下的黃變現(xiàn)象，且給產(chǎn)品提供優(yōu)異的保護(hù)作用，有效防止光澤的降低、裂紋、氣泡、脫層的產(chǎn)生，明顯提高產(chǎn)品的耐候性，與抗氧劑一起使用有很好的協(xié)同效應(yīng)。當(dāng)然抗氧劑與紫外線吸收劑的使用，并不能從根本上解決黃變問(wèn)題，但是在一定的范圍內(nèi)，還是能有效地防止不飽和聚酯產(chǎn)品氧化黃變，保持產(chǎn)品水色透明，提高產(chǎn)品的檔次。溫州石英石固化劑用量一般要求施工溫度不低于 15℃，相對(duì)濕度不大于 80%。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江固化劑哪種好,固化劑" src="https://tyunfile.71360.com/WaterMark/UploadFile/Jyquanlin/637286280068066406/7446006.png"></div><p> 因此施工時(shí)要注意以下幾點(diǎn)： </p> <p> ①樹脂制品體積越大，應(yīng)適當(dāng)減少固化劑、促進(jìn)劑的加入量。 </p> <p> ②制品體積小，要適當(dāng)增加固化劑、促進(jìn)劑的加入量。 </p> <p> ③對(duì)于大面積噴涂成型，可能因?yàn)榻宦?lián)劑的揮發(fā)而導(dǎo)致交聯(lián)劑不足，也要適當(dāng)增加促進(jìn)劑、固化劑的量，以縮短凝膠時(shí)間。 </p> <p> 填料等其它添加劑對(duì)樹脂固化程度的影響 </p> <p> 如果樹脂中加入其它物質(zhì)如：橡膠、硫、銅與銅鹽、苯酚、酚醛樹脂、粉塵及碳黑等，即使是少量的，也可以降低聚合反應(yīng)，有時(shí)甚至?xí)箻渲耆还袒?</p> <p> <br /> </p><p> 乙二胺 EDA H2NCH2CH2NH2 分子量60 活潑氫當(dāng)量15 無(wú)色液體每100份標(biāo)準(zhǔn)樹脂用6-8份性能：0、有剌激臭味，揮發(fā)性大、粘度低、可室溫快速固化。用于粘接、澆注、涂料。該類胺隨分子量增大，粘度增加，揮發(fā)性減小，毒性減小，性能提高。但它們放熱量大、適用期短。一般而言它們分子量越大受配合量影響越小。長(zhǎng)期接觸脂肪多元胺會(huì)引起皮炎，它們的蒸汽毒性很強(qiáng)，操作時(shí)須十分注意。 </p> <p> 二乙烯三胺 DETA H2NC2H4NHC2H4NH2 分子量103活潑氫當(dāng)量20.6 無(wú)色液體每100份標(biāo)準(zhǔn)樹脂用8-11份。固化：20℃2小時(shí)+100℃30分鐘或20℃4天。性能：適用期50克25℃45分鐘，熱變形溫度95-124℃，抗彎強(qiáng)度1000-1160kg/cm2，抗壓強(qiáng)度1120kg/cm2，抗拉強(qiáng)度780kg/cm2，伸長(zhǎng)率5.5%，沖擊強(qiáng)度 0.4尺-磅/寸洛氏硬度99-108。介電常數(shù)（50赫、23℃）4.1 功率因數(shù)（50赫、23℃）0.009 體積電阻2x1016 Ω-cm 常溫固化、毒性大、放熱量大、適用期短這一階段大約需要幾十分鐘至幾小時(shí)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江固化劑哪種好,固化劑" src="https://tyunfile.71360.com/WaterMark/UploadFile/Jyquanlin/637286279900429688/2943002.png"></div><p> 不飽和聚酯樹脂的固化是游離基引發(fā)的共聚合反應(yīng)，如何能使反應(yīng)啟動(dòng)是問(wèn)題的關(guān)鍵。單體一旦被引發(fā)，產(chǎn)生游離基，分子鏈即可以迅速增長(zhǎng)而形成三向交聯(lián)的大分子。 </p> <p> 不飽和聚酯樹脂固化的啟動(dòng)是首先使不飽和 C—C 雙鍵斷裂，由于化學(xué)鍵發(fā)生斷裂所需的能量不同，對(duì)于 C—C 鍵，其鍵能 E=350kJ/mol，需 350-550℃的溫度才能將其激發(fā)裂解。 </p> <p> 顯然，在這樣高的溫度下使樹脂固化是不實(shí)用的。因此人們找到了能在較低的溫度下即可分解產(chǎn)生自由基的物質(zhì)，這就是有機(jī)過(guò)氧化物。一些有機(jī)過(guò)氧化物的 O—O 鍵可在較低的溫度下分解產(chǎn)生自由基。其中一些能在 50-150℃分解的過(guò)氧化物對(duì)樹脂的固化很有利用價(jià)值。我們可以利用有機(jī)過(guò)氧化物的這一特性，選擇其中的一些作為樹脂的引發(fā)劑，或稱固化劑。鏈引發(fā)——從過(guò)氧化物引發(fā)劑分解形成游離基到這種游離基加到不飽和基團(tuán)上的過(guò)程。南通快速固化劑好</p><p style="text-indent:25px">這個(gè)結(jié)段通常是一個(gè)很漫長(zhǎng)的過(guò)程。浙江固化劑哪種好</p><p> 不飽和聚酯樹脂（UPR）的固化似乎是從理論和實(shí)踐上已研究得十分透徹的問(wèn)題，但是因?yàn)橛绊懝袒磻?yīng)的因素相當(dāng)復(fù)雜，而在UPR的各種應(yīng)用領(lǐng)域中，制品所出現(xiàn)的質(zhì)量瑕疵在很大程度上幾乎都與“固化”有關(guān)。所以，我們有對(duì) UPR 的固化進(jìn)行較深入探討的必要。（探討不飽和聚酯樹脂的固化，首先應(yīng)該了解與不飽和聚酯樹脂固化有關(guān)的一些概念和定義） </p> <p> 與不飽和聚酯樹脂固化有關(guān)的概念和定義 </p> <p> 1 固化的定義 </p> <p> 液態(tài) UPR 在光、熱或引發(fā)劑的作用下可以通過(guò)線型聚酯鏈中的不飽和雙鍵與交聯(lián)單體的雙鍵的結(jié)合，形成三向交聯(lián)的不溶不熔的體型結(jié)構(gòu)。這個(gè)過(guò)程稱為 UPR 的固化。 </p> <p> 2固化劑 </p> <p> 不飽和聚酯樹脂的固化是游離基引發(fā)的共聚合反應(yīng)，如何能使反應(yīng)啟動(dòng)是問(wèn)題的關(guān)鍵。單體一旦被引發(fā)，產(chǎn)生游離基，分子鏈即可以迅速增長(zhǎng)而形成三向交聯(lián)的大分子。 </p> <p> 不飽和聚酯樹脂固化的啟動(dòng)是首先使不飽和 C—C 雙鍵斷裂，由于化學(xué)鍵發(fā)生斷裂所需的能量不同，對(duì)于 C—C 鍵，其鍵能 E=350kJ/mol，需 350-550℃的溫度才能將其激發(fā)裂解。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 浙江固化劑哪種好</p><p style="text-indent:25px">江陰泉林化學(xué)品有限公司創(chuàng)立于2019-03-01，是一家生產(chǎn)型公司。公司自成立以來(lái)，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下[ "不飽和聚酯樹脂不飽和樹脂", "乙烯基樹脂，樹脂，膠衣", "玻璃纖維紗，玻璃纖維布", "固化劑促進(jìn)劑，環(huán)氧固化劑" ]深受客戶的喜愛(ài)。公司秉持誠(chéng)信為本的經(jīng)營(yíng)理念，在化工深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為**，發(fā)揮人才優(yōu)勢(shì)，打造化工質(zhì)量品牌。公司自成立以來(lái)發(fā)展迅速，業(yè)務(wù)不斷發(fā)展壯大，年?duì)I業(yè)額度達(dá)到1000-2000萬(wàn)元，未來(lái)我們將不斷進(jìn)行創(chuàng)新和改進(jìn)，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/483870.html</p></div></div></div></div></div><div id="zpqrdzl" class="page-right twoColRt"><div id="ni3wpq2" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="88ubctp" 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)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="u3qmdug" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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