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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xd5x5lh" 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>茂名**固化劑廠家批發(fā)價(jià),固化劑</p><p><span>***更新：</span>2020-07-30 14:17:22</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="pjhd5bx" 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="5hrhvrn" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="xnlplp5" class="box"><p><p> 環(huán)氧樹(shù)脂是線型的熱塑性樹(shù)脂，本身不會(huì)硬化，且不具有任何使用性能，只有加入固化劑，使它由線型結(jié)構(gòu)交聯(lián)成網(wǎng)狀或體型結(jié)構(gòu)，形成不溶不熔物，才具有優(yōu)良的使用性能；并且固化產(chǎn)物的性能在很大程度上取決于固化劑，因此。固化劑是環(huán)氧樹(shù)脂結(jié)合劑中的一個(gè)重要組成部分。 </p> <p> 凡能和環(huán)氧樹(shù)脂的環(huán)氧基及羥基作用，茂名**固化劑廠家批發(fā)價(jià)，使樹(shù)脂交聯(lián)的物質(zhì)，叫做固化劑，也叫硬化劑或交聯(lián)劑，茂名**固化劑廠家批發(fā)價(jià)。 </p> <p> 根據(jù)硬化所需的溫度不同可分為加熱硬化劑和室溫硬化劑兩類(lèi)。如果根據(jù)化學(xué)結(jié)構(gòu)類(lèi)型的不同，可分為胺類(lèi)硬化劑，酸酐類(lèi)硬化劑，樹(shù)脂類(lèi)硬化劑，茂名**固化劑廠家批發(fā)價(jià)，咪唑類(lèi)硬化劑及潛伏性硬化劑等。按硬化劑的物態(tài)不同可分為液體硬化劑和固體硬化劑兩類(lèi)。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。茂名**固化劑廠家批發(fā)價(jià)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="茂名**固化劑廠家批發(fā)價(jià),固化劑" src="https://tyunfile.71360.com/WaterMark/UploadFile/Jyquanlin/637286280191572266/1979418.png"></div><p> 因此施工時(shí)要注意以下幾點(diǎn)： </p> <p> ①樹(shù)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(shù)脂固化程度的影響 </p> <p> 如果樹(shù)脂中加入其它物質(zhì)如：橡膠、硫、銅與銅鹽、苯酚、酚醛樹(shù)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?shù)脂完全不固化。 </p> <p> <br /> 茂名**固化劑廠家批發(fā)價(jià)鏈終止——兩個(gè)游離基結(jié)合，終止了增長(zhǎng)著的聚合鏈。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="茂名**固化劑廠家批發(fā)價(jià),固化劑" src="https://tyunfile.71360.com/WaterMark/UploadFile/Jyquanlin/637286279900429688/2943002.png"></div><p style="text-indent:25px">環(huán)氧樹(shù)脂。1. 固化收縮小，隨固化劑種類(lèi)而異，體積收縮為0.02%～0.8%2. 固化物的機(jī)械強(qiáng)度高3. 尺寸穩(wěn)定性好4. 粘結(jié)性好5. 電性能、耐腐蝕性能（特別是耐堿性）優(yōu)良6. 若對(duì)樹(shù)脂及固化劑進(jìn)行選擇，能得到耐熱性好的固化物7. 固化物無(wú)臭味，能用于食品行業(yè)8. 樹(shù)脂保存期長(zhǎng)，選擇固化劑可以制成B階樹(shù)脂，有良好的預(yù)浸漬制品的特性。9. 固化時(shí)不會(huì)像聚酯那樣容易受空氣中氧的阻聚作用10. 不含揮發(fā)性單體，配合組成時(shí)常保持穩(wěn)定，纏繞特性好。1. 固化劑毒性較大2. 固化時(shí)間比聚酯長(zhǎng)，完全固化需長(zhǎng)時(shí)間熱處理3. 粘度大，浸漬性不好4. 固化放熱高5. 價(jià)格較高</p><p> 不飽和聚酯樹(shù)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(shù)脂的固化，首先應(yīng)該了解與不飽和聚酯樹(shù)脂固化有關(guān)的一些概念和定義） </p> <p> 與不飽和聚酯樹(shù)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(chēng)為 UPR 的固化。 </p> <p> 2固化劑 </p> <p> 不飽和聚酯樹(shù)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(shù)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 /> 鏈增長(zhǎng)——單體不斷地加合到新產(chǎn)生的游離基上的過(guò)程。與鏈引發(fā)相比，鏈增長(zhǎng)所需的活化能要低得多。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="茂名**固化劑廠家批發(fā)價(jià),固化劑" src="https://tyunfile.71360.com/WaterMark/UploadFile/Jyquanlin/637286279982451172/4578712.png"></div><p> 二氨甲基環(huán)已烷 1。3 BAC C260 （H2NCH2）2C6H8 棕色液體每100份標(biāo)準(zhǔn)樹(shù)脂用18份該環(huán)狀多元胺在常溫下不能完全固化，需進(jìn)行后固化80-150℃，得HDT達(dá)150℃左右。常需加促進(jìn)劑：叔胺、亞磷酸三苯酯、水楊酸、甲酚等。 </p> <p> 孟烷二胺 MDA （CH3）（H2N）C6H8 C（CH3）2NH2 分子量169 活潑氫當(dāng)量42.2 淺黃色液體每100份標(biāo)準(zhǔn)樹(shù)脂用6-22份加溫固化 80-130℃ 2小時(shí)-30分鐘適用期50克25℃長(zhǎng)8-16小時(shí)。熱變形溫度148-158℃抗彎強(qiáng)度1050-1190kg/cm2，抗壓強(qiáng)度710kg/cm2，抗拉強(qiáng)度610kg/cm2，伸長(zhǎng)率2.9%，沖擊強(qiáng)度 0.4尺-磅/寸洛氏硬度105。粘度低、適用期長(zhǎng)。加熱迅速固化，毒性小。 </p> <p> <br /> 一般要求施工溫度不低于 15℃，相對(duì)濕度不大于 80%。桂林膠衣固化劑出廠價(jià)</p><p style="text-indent:25px">凝膠階段（A 階段）：從加入固化劑、促進(jìn)劑以后算起，直到樹(shù)脂凝結(jié)成膠凍狀而失去流動(dòng)性的階段。茂名**固化劑廠家批發(fā)價(jià)</p><p style="text-indent:25px">我國(guó)正在深入推進(jìn)去產(chǎn)能，加快有限責(zé)任公司企業(yè)退出，建立健全落后產(chǎn)能退出機(jī)制，其中石化行業(yè)是去產(chǎn)能政策落實(shí)的重要一環(huán)。中國(guó)化工產(chǎn)業(yè)快速增長(zhǎng)，總產(chǎn)值從2012年的約3萬(wàn)億元增長(zhǎng)至2015年的約4.5萬(wàn)億元。2017年節(jié)能環(huán)保產(chǎn)業(yè)產(chǎn)值5.8萬(wàn)億，2018年突破7萬(wàn)億元。隨著生產(chǎn)型等政策法規(guī)的不斷加碼，我國(guó)化工產(chǎn)業(yè)市場(chǎng)空間未來(lái)還將持續(xù)擴(kuò)大。保守預(yù)計(jì)，2020年節(jié)能化工產(chǎn)業(yè)產(chǎn)值有望突破8萬(wàn)億元。銷(xiāo)售主要是無(wú)定型的粉劑、液體和膏狀產(chǎn)品。從市場(chǎng)地域上來(lái)看，中國(guó)是世界上比較大的建筑化學(xué)品市場(chǎng)，其次是西歐和北美，這三大市場(chǎng)占全球總市場(chǎng)的70%。開(kāi)發(fā)環(huán)境友好型工業(yè)[ "不飽和聚酯樹(shù)脂不飽和樹(shù)脂", "乙烯基樹(shù)脂，樹(shù)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" ]是許多發(fā)達(dá)國(guó)家正在積極探索的高科技項(xiàng)目，在國(guó)內(nèi)更是一個(gè)新興的領(lǐng)域。[ "不飽和聚酯樹(shù)脂不飽和樹(shù)脂", "乙烯基樹(shù)脂，樹(shù)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" ]領(lǐng)域由于與國(guó)外技術(shù)接軌較早，加之各種法規(guī)政策的驅(qū)動(dòng)，一些環(huán)境友好高效的產(chǎn)品已經(jīng)得到了***的應(yīng)用。茂名**固化劑廠家批發(fā)價(jià)</p><p style="text-indent:25px">江陰泉林化學(xué)品有限公司創(chuàng)建于2019-03-01，注冊(cè)資金 200-300萬(wàn)元，是一家專(zhuān)注不飽和樹(shù)脂，乙烯基樹(shù)脂，環(huán)氧樹(shù)脂，玻纖纖維紗，玻纖纖維布，促進(jìn)劑，固化劑，脫模劑，脫模蠟，玻璃纖維氈，環(huán)氧固化劑，環(huán)氧樹(shù)脂色漿，樹(shù)脂色漿，樹(shù)脂膠衣，高溫固化劑，粒子引發(fā)劑，DTBP，以及樹(shù)脂配套類(lèi)產(chǎn)品。的公司。公司目前擁有5~10人員工，為員工提供廣闊的發(fā)展平臺(tái)與成長(zhǎng)空間，為客戶(hù)提供高質(zhì)高效的產(chǎn)品服務(wù)，深受員工與客戶(hù)好評(píng)。公司業(yè)務(wù)范圍主要包括：[ "不飽和聚酯樹(shù)脂不飽和樹(shù)脂", "乙烯基樹(shù)脂，樹(shù)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" ]等。公司奉行顧客至上、質(zhì)量為首、的經(jīng)營(yíng)宗旨，深受客戶(hù)好評(píng)。目前公司已經(jīng)成為[ "不飽和聚酯樹(shù)脂不飽和樹(shù)脂", "乙烯基樹(shù)脂，樹(shù)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" ]的**企業(yè)，正積蓄著更大的能量，向更廣闊的空間、更***的領(lǐng)域拓展。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/752059.html</p></div></div></div></div></div><div id="lvrppbp" class="page-right twoColRt"><div id="vbjhl75" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="zvt3dvd" class="recomPic likePro"><a 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