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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>佛山質(zhì)量好固化劑特價(jià),固化劑</p><p><span>***更新：</span>2020-07-26 13:17:22</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="gvnuwda" 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="32bi283" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="yxzl7zg" class="box"><p><p> FRP 產(chǎn)品在實(shí)際施工中，由于不同廠家不同批次的樹(shù)脂固化速度不同，同時(shí)施工時(shí)受環(huán)境溫度、濕度等諸多因素的影響，制品達(dá)比較好固化程度的時(shí)間會(huì)有所不同。下面介紹幾種間接判斷 FPR 產(chǎn)品固化程度的常用方法。 </p> <p> 現(xiàn)場(chǎng)檢查 </p> <p> 用手觸 FRP 產(chǎn)品表面無(wú)粘感；用干凈棉球蘸取**放在制品表面觀察，棉花是否出現(xiàn)顏色；敲擊制品聽(tīng)聲音，應(yīng)清脆而不是模糊；用硬幣劃不出傷痕。 </p> <p> 巴氏硬度法 </p> <p> 巴氏硬度法是用 Barcol 硬度儀測(cè)試成型材料的硬度值。一般巴氏硬度達(dá) 40～50，佛山質(zhì)量好固化劑特價(jià)，佛山質(zhì)量好固化劑特價(jià)，佛山質(zhì)量好固化劑特價(jià)，則達(dá)到較為理想的固化程度，即可投入使用了。在同樣成分下，大制件相對(duì)小制件熱損失少，溫升就較高。佛山質(zhì)量好固化劑特價(jià)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="佛山質(zhì)量好固化劑特價(jià),固化劑" src="https://tyunfile.71360.com/WaterMark/UploadFile/Jyquanlin/637286280191572266/1979418.png"></div><p> 間氨基甲胺 MAMA （NH2）（CH2NH2）C6H4 分子量123 活潑氫當(dāng)量30.7 熔點(diǎn)38℃ 每100份標(biāo)準(zhǔn)樹(shù)脂用14-18份固化130-150℃3天-2小時(shí)。斷裂伸長(zhǎng)率高。 </p> <p> 聯(lián)苯胺（NH2）C6H4 C6H4 （NH2） </p> <p> 4-氯鄰苯二胺 CPDA （NH2）2C6H3 CL </p> <p> 苯二甲胺三聚體 GY-51CH-2 粘度60℃2000-6000cps 每100份標(biāo)準(zhǔn)樹(shù)脂用30-60份固化常溫-60℃ 7天-1小時(shí)。毒性低。 </p> <p> WA-060 CH-3 粘度60℃6000-10000cps每100份標(biāo)準(zhǔn)樹(shù)脂用30-60份固化常溫-60℃ 7天-1小時(shí)。 </p> <p> 苯二甲胺三聚體衍生物粘度25℃5cps 、40cps 、100cps 每100份標(biāo)準(zhǔn)樹(shù)脂用25-30份固化常溫-60℃ 7天-1小時(shí)。粘度低。毒性低。 </p> <p> 雙芐胺基醚（H2NCH2C6H4）2O 每100份標(biāo)準(zhǔn)樹(shù)脂用30-60份可室溫固化，適用期長(zhǎng)，放熱低，熱變形溫度68℃ </p> <p> <br /> </p> <p> <br /> 佛山質(zhì)量好固化劑特價(jià)一般促進(jìn)劑與固化劑（過(guò)氧化物）的摩爾比必須小于 1這種情況只有在選擇鈷鹽作為促進(jìn)劑的情況下才能計(jì)算出。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="佛山質(zhì)量好固化劑特價(jià),固化劑" src="https://tyunfile.71360.com/WaterMark/UploadFile/Jyquanlin/637286280068066406/7446006.png"></div><p> 不飽和樹(shù)脂固化過(guò)程的表觀特征變化 </p> <p> 不飽和聚酯樹(shù)脂的固化過(guò)程可分為三個(gè)階段，分別是： </p> <p> ①、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。該結(jié)段中，樹(shù)脂能熔融，并可溶于某些溶劑（如乙醇、**等）中。這一階段大約需要幾分鐘至幾十分鐘 </p> <p> <p> ②、硬化階段（B 階段）：從樹(shù)脂凝膠以后算起，直到變成具有足夠硬度，達(dá)到基本不粘手狀態(tài)的階段。該階段中，樹(shù)脂與某些溶劑（如乙醇、 **等）接觸時(shí)能溶脹但不能溶解，加熱時(shí)可以軟化但不能完全熔化。這一階段大約需要幾十分鐘至幾小時(shí)。 </p> <p> ③、熟化階段（C 階段）：在室溫下放置，從硬化以后算起，達(dá)到制品要求硬度，具有穩(wěn)定的物理與化學(xué)性能可供使用的階段。該階段中，樹(shù)脂既不溶解也不熔融。我們通常所指的后期固化就是指這個(gè)階段。這個(gè)結(jié)段通常是一個(gè)很漫長(zhǎng)的過(guò)程。通常需要幾天或幾星期甚至更長(zhǎng)的時(shí)間。 </p> </p><p> 不飽和聚酯樹(shù)脂作為復(fù)合材料，在涂料、玻璃鋼、人造石、工藝品等領(lǐng)域，都已經(jīng)得到了較好的應(yīng)用。但不飽和樹(shù)脂的顏色黃變，一直是一個(gè)困擾生產(chǎn)廠家的問(wèn)題。通常不飽和樹(shù)脂的黃變?cè)虬ㄒ韵聨追N： </p> <p> 1、不飽和樹(shù)脂酯化合成過(guò)程中，由于高溫引起的熱老化黃變，不飽和樹(shù)脂一般酯化溫度，為180～220℃甚至更高，在此溫度下樹(shù)脂很容易因熱老化而變黃，影響樹(shù)脂產(chǎn)品外觀； </p> <p> 2、樹(shù)脂接觸紫外線而引起的黃變，主要因素是樹(shù)脂中存在的苯環(huán)(包括芳香族二元酸/酐和苯乙烯引入的苯環(huán))，原因可能是芳香族化合物在高溫時(shí)發(fā)生熱氧降解，容易發(fā)生π→π軌道上的電子躍遷，使樹(shù)脂呈現(xiàn)黃色； </p> <p> 3、樹(shù)脂生產(chǎn)過(guò)程中，因裝置密封性不好等原因使原料接觸氧氣，通用不飽和聚酯分子鏈中不僅含有酯基、羥基、羧基，而且含有雙鍵和芳香環(huán)，微量氧能使其發(fā)生熱氧化降解，**明顯的表現(xiàn)就是樹(shù)脂顏色變黃。 </p> <p> 4、添加劑的影響如抗氧劑、阻聚劑、固化劑等，胺類抗氧劑易轉(zhuǎn)變成氮氧自由基而使制品著色，常用的阻聚劑，如對(duì)苯二酚，在微量氧存在時(shí)氧化為醌類，醌類本身帶有顏色，從而影響樹(shù)脂的顏色，固化劑有些廠家仍采用過(guò)氧化酰類-叔胺體系和過(guò)氧化酮類-金屬皂體系，由于叔胺和金屬皂都有顏色，容易使樹(shù)脂著色。 </p> <p> <br /> 足夠的固化劑的加入量和適當(dāng)?shù)拇龠M(jìn)劑的加入量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="佛山質(zhì)量好固化劑特價(jià),固化劑" src="https://tyunfile.71360.com/WaterMark/UploadFile/Jyquanlin/637286279950800781/5664313.png"></div><p> 固化劑和促進(jìn)劑 </p> <p> 常用固化劑有過(guò)氧化甲乙酮，與之配合的促進(jìn)劑異辛酸鈷，加速劑一般為N,N-二甲基苯胺（50%）。 </p> <p> <p> 使用配比：100份樹(shù)脂，加固化劑2~3份，促進(jìn)劑1~2.5份。當(dāng)溫度低需用加速劑時(shí)，加量為0.2~0.5%份。添加順序?yàn)椋杭铀賱?reg;促進(jìn)劑®固化劑，并且每加一種時(shí)，都必須充分與樹(shù)脂混合均勻后，才可加入第二種。 </p> <p> 注意事項(xiàng)：過(guò)氧化甲乙酮是潛在性物必須遠(yuǎn)離火源、碰撞及避免陽(yáng)光直射。儲(chǔ)藏在陰涼、通風(fēng)處。但決不可與促進(jìn)劑放在一起，二者相互混合會(huì)引起燃燒及。 </p> <p> 空氣阻聚性：樹(shù)脂在固化過(guò)程中受空氣中氧的阻聚，表面既發(fā)粘。欲改善此現(xiàn)象可采取一下措施 </p> 用保護(hù)膜 <p> 可加入0.2~0.4%的氣干劑。但加入氣干劑的樹(shù)脂只能用于表面層決不能用于層間（否則產(chǎn)生脫層現(xiàn)象）。 </p> 鏈終止——兩個(gè)游離基結(jié)合，終止了增長(zhǎng)著的聚合鏈。廣東質(zhì)量固化劑出廠價(jià)</p><p style="text-indent:25px">我們通常所指的后期固化就是指這個(gè)階段。佛山質(zhì)量好固化劑特價(jià)</p><p> 回彈法 </p> <p> 回彈法是把小鋼球從一定高度落向被測(cè)固化樹(shù)脂表面，由于固化程度不同，樹(shù)脂的剛性是不同的，所以回彈高度亦不同，回彈高度可表明固化程度。 </p> <p> 測(cè)成型制品中的不可溶物含量，即用**來(lái)萃取出樹(shù)脂中的可溶性成分，從而得到不可溶物含量。此法也適用于環(huán)氧或酚醛 FRP，是目前用得比較多的方法。其原理是樹(shù)脂固化前是線型分子、易溶于有機(jī)溶劑，而固化后變成體型網(wǎng)狀結(jié)構(gòu)、難溶于有機(jī)溶劑的特點(diǎn)，采取有機(jī)溶劑萃取出已固化樹(shù)脂中的可溶組份，再根據(jù)玻璃鋼試樣在萃取前后的重量差進(jìn)行計(jì)算，以此間接地說(shuō)明固化程度。佛山質(zhì)量好固化劑特價(jià)</p><p style="text-indent:25px">江陰泉林化學(xué)品有限公司位于江蘇省無(wú)錫市，創(chuàng)立于2019-03-01。公司業(yè)務(wù)分為[ "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" ]等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供質(zhì)量的產(chǎn)品和服務(wù)。公司從事化工多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供質(zhì)量的產(chǎn)品及服務(wù)。公司憑借深厚技術(shù)支持，年?duì)I業(yè)額度達(dá)到1000-2000萬(wàn)元，并與多家行業(yè)**公司建立了緊密的合作關(guān)系。</p></p><br /><p>文章來(lái)源地址: 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