巴斯夫異氰酸酯哪家好信息推薦成都成英科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="性質(zhì):異氰酸的各種酯的總稱。有一異氰酸酯R-N=C=O和二異氰酸酯O=C=N-R-N=C=O。一般是不愉快氣味的液體。一異氰酸酯易與氨或胺作用而成脲類，易與醇作用而成氨基甲酸酯(如氨基甲酸乙酯)。用途:用于家電、汽車、建筑、鞋業(yè)、家具、膠粘"><meta name="keywords" content="巴斯夫異氰酸酯哪家好,異氰酸酯"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" 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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>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>巴斯夫異氰酸酯哪家好,異氰酸酯</p><p><span>***更新：</span>2021-02-06 08:06:31</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ys2xu22" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">成都成英科技有限公司</a></p><p><span>聯(lián)系人：</span>何英</p><p><span>郵箱: </span>cykj789@sina.com</p><p><span>電話: </span>13558781838</p><p><span>傳真: </span>135_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>135-58781838</p><p><span>地址: </span>龍橋鎮(zhèn)山水村3組201號</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="7w2celn" class="page-proshow02"><p class="title">詳細說明</p><div id="mgvspwi" class="box"><p><p style="text-indent:25px">性質(zhì):異氰酸的各種酯的總稱。有一異氰酸酯R-N=C=O和二異氰酸酯O=C=N-R-N=C=O。一般是不愉快氣味的液體。一異氰酸酯易與氨或胺作用而成脲類，易與醇作用而成氨基甲酸酯(如氨基甲酸乙酯)。用途:用于家電、汽車、建筑、鞋業(yè)、家具、膠粘劑等行業(yè);生產(chǎn)方法:一種異氰酸酯，其通過如下步驟生產(chǎn):a)使氯氣與一氧化碳反應(yīng)生產(chǎn)光氣，巴斯夫異氰酸酯哪家好，巴斯夫異氰酸酯哪家好，b)使光氣與有機胺反應(yīng)形成異氰酸酯和氯化氫，c)將異氰酸酯和氯化氫分離出來，d)任選地，純化氯化氫，e)制備氯化氫水溶液，f)任選地，巴斯夫異氰酸酯哪家好，純化氯化氫水溶液，g)使氯化氫水溶液進行電化學(xué)氧化形成氯氣，和h)使至少部分步驟(g)中產(chǎn)生的氯氣返回(a)。無色清亮液體, 有強刺激性。巴斯夫異氰酸酯哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="巴斯夫異氰酸酯哪家好,異氰酸酯" src="https://tyunfile.71360.com/UploadFile/cdcykj/637281755704511718/3883311.png"></div><p> 其中苯基異氰酸酯主要用于制備非草隆、三氯乙酸非草隆、環(huán)草隆、苯胺靈、甜菜胺、卡草胺、落草胺、戊菌隆和禾穗安等；對**異氰酸酯主要用于制備防霉劑3-三氟甲基-4,4'-二氯碳酰二苯胺、抑菌劑3,4,4'-三氯二苯脲、滅草隆、三氯乙酸滅草隆、綠谷隆和播土隆等;3-**異氰酸酯主要用于制備氯苯胺靈、稗蓼靈和燕麥靈等；3。4-二**異氰酸酯主要用于制備敵草隆、利谷隆、草不隆和滅草靈等Chemicalbook；3,5-二**異氰酸酯主要用于制備異菌脲、菌核利等；對-甲基苯基異氰酸酯主要用于制備殺草隆等;間甲基苯基異氰酸酯主要用于制備甜菜寧等；雅安異氰酸酯pm200可制成一系列氨基甲酸酯類殺蟲劑、殺菌劑、除草劑，也用于改進塑料、織物、皮革等的防水性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="巴斯夫異氰酸酯哪家好,異氰酸酯" src="https://tyunfile.71360.com/UploadFile/cdcykj/637281755141914062/2919879.png"></div><p> 使氨基甲酰氯、伯胺的鹽酸鹽和脲分解生成異氰酸酯：RNHCOCl→RNCO+HClRNH2·HCl+RNCO→RNHCONHR+HClRNHCONHR+COCl2→2RNCO+2HCl+焦油由于原料易得,操作方便,產(chǎn)率高,這一方法被用于大規(guī)模工業(yè)生產(chǎn)。(2)氣相光氣法氣相光氣法與液相光氣法原理類似,只是胺類化合物在200～600℃的高溫下氣化,從而與氣相光氣發(fā)生均相反應(yīng)而一步制得異氰酸酯的方法。相比較液相光氣法而言,該方法具有反應(yīng)收率高、能耗低等優(yōu)點,目前已經(jīng)成為光氣法合成異氰酸酯技術(shù)中的主流發(fā)展方向。 </p><p style="text-indent:25px">硝基化合物直接與一氧化碳高溫高壓催化合成異氰酸酯的工藝越來越來成熟。由于異氰酸酯結(jié)構(gòu)中含有不飽和鍵，因此具有高活性，容易與一些帶活性基團的有機或無機物反應(yīng)，生成聚氨酯彈性體。(1)與羥基化合物的反應(yīng):如與多元醇、聚醚、聚酯酰胺、蓖麻油等含活性羥基化合物反應(yīng)生成氨甲基酸酯。(2)與含氨基化合物的反應(yīng):與胺類化合物反應(yīng)通常生成取代脲，如果進一步發(fā)生反應(yīng)則**終生成縮二脲。(3)與水反應(yīng):與水反應(yīng)生成胺和二氧化碳，胺進一步與異氰酸酯反應(yīng)生成取代脲。(4)與含羧基化合物的反應(yīng):與有機羧酸、末端為羧基的聚酯等化合物反應(yīng)，先生成混合酸酐，***分解放出二氧化碳而生成酰胺。。與氨基甲酸酯的反應(yīng):反應(yīng)生成脲基甲酸酯。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="巴斯夫異氰酸酯哪家好,異氰酸酯" src="https://tyunfile.71360.com/UploadFile/cdcykj/637281753599755859/8927766.png"></div><p style="text-indent:25px">甲苯二異氰酸酯（TDI）為無色有強烈刺鼻味的液體，沸點251°C，比重1.22，遇光變黑，對皮膚、眼睛有強烈刺激作用，并可引起濕疹與支氣管***，主要用于聚氨酯泡沫塑料、涂料、合成橡膠、絕緣漆、粘合劑等。根據(jù)其成分，甲苯二異氰酸酯屬含氮基的有機化合物。二苯基甲烷二異氰酸酯（MDI）分為純MDI和粗MDI。純MDI常溫下為白色固體，加熱時有刺激臭味，沸點196°C，主要用于聚氨酯硬泡沫塑料、合成纖維、合成橡膠、合成革、粘合劑等。根據(jù)其成分，純二苯基甲烷二異氰酸酯也屬含氮基的有機化合物。還有非黃變型的1,6-己二異氰酸酯（HDI）。與水反應(yīng)生成甲胺、二氧化碳;成都巴斯夫異氰酸酯哪家好</p><p style="text-indent:25px">吸入后刺激呼吸系統(tǒng), 引起干咳、喉痛。巴斯夫異氰酸酯哪家好</p><p> 根據(jù)合成反應(yīng)的方式，大致有以下幾種。(1)胺的直接光氣化該法是將胺加到冷的光氣溶液中反應(yīng)，首先生成氨基甲酸鹽化合物和胺的鹽酸鹽，然后在通入光氣的過程中逐漸升溫，使氨基甲酸鹽化物和胺的鹽酸鹽轉(zhuǎn)化生成異氰酸酯。該法是目前異氰酸酯工業(yè)生產(chǎn)的主要方法。(2)胺鹽酸鹽的光氣化該法是先將胺化合物在溶劑中轉(zhuǎn)化成鹽酸鹽，然后在高溫下通入光氣反應(yīng)。此法由于鹽酸鹽溶解性較差，反應(yīng)溫度較高，一般只作為實驗室的合成法。(3)氨基甲酸的光氣化此法和以上兩法相似，為減少氨基在反應(yīng)中出現(xiàn)大量副反應(yīng)，使異氰酸酯收率下降，可使用分步反應(yīng)程序。巴斯夫異氰酸酯哪家好</p></p><br /><p>文章來源地址: 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