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<div class="qbanner"><img src="/template/kebao/img/qbanner.jpg" width="100%" height="415"><div class="bannerbottom2"></div></div> <div class="qmain"> <div class="qmainl"> <dl> <dt>¿U‘宝资讯</dt> <dd><a href="/news/qyxw/">企业新闻</a></dd> <dd><a href="/news/hydt/">行业动æ€?/a></dd> <dd><a href="/news/jszc/">技术支æŒ?/a></dd> </dl> <div class="t2b"> <a href="/contact/"><img class="timg" src="/template/kebao/img/tel.jpg" width="248" height="66"></a> <div class="c_999 ade"><img src="/template/kebao/img/t.jpg" width="23" height="24">手机åQ?8933319782</div> <div class="c_999 ade"><img src="/template/kebao/img/m.jpg" width="19" height="24" style="padding-left:1px">传真åQ?760-88333275</div> <div class="c_999 ade"><img src="/template/kebao/img/p.jpg" width="20" height="18">邮箱åQ?a href="mailto:zskebao@126.com">zskebao@126.com</a></div> <div class="c_999 ade" style="display:none"><img src="/template/kebao/img/a.jpg" width="15" height="15">¾|‘址åQšwww.sa-aa.com</div> <div class="c_999 ade" style="display:none"><img src="/template/kebao/img/a.jpg" width="15" height="15">地址åQšå¹¿ä¸œçœä¸­å±±å¸‚民众镇多宝工业åŒ?/div> </div> </div> <div class="qmainr"> <div class="qtitle"><h2>新闻中心</h2><span>当前位置åQ?a href="/">首页</a> > <a href="/news/jszc/">技术支æŒ?/a> > 详细内容</span></div> <div class="clear"></div> <div class="info"> <div class="article_title">减水剂厂家科宝特¿Uå¾æåŽ‚告诉您聚¾Ÿ§é…¸¾pÕd‡æ°´å‰‚的合成方æ³?/div> <div class="article_time">发布旉™—´ : 2017-08-14</div> <div class="edit_line1"><span style="font-size:14px;">       ä¸­å±±å¸‚科宝防水技术开发有限公司成立于1998òqß_¼Œæ˜¯ä¸€å®‰™›†¿U‘研、开发、生产、销售、工½E‹æ–½å·¥åŠæŠ€</span><span style="font-size:14px;">术服务于一体化的民营科技企业。公司自创徏èµøP¼Œ¿U‰æ‰¿â€œåˆ›é€ äؓ先、品质至上、信誉äؓ本”的¾lè¥ç†å¿µã€?nbsp;</span><br /> <span style="font-size:14px;">       èšç¾§é…¸ç³»å‡æ°´å‰‚的合成主要是以丙烯é…?甲基丙烯é…?ä¸ÞZ¸»é“¾æŽ¥æžèšæ°§ä¹™çƒ¯åŸºEO或聚氧丙烯基PO支链åQ?/span><span style="font-size:14px;">或以烯丙醇类ä¸ÞZ¸»é“¾æŽ¥æžEO或PO支链åQŒä¹Ÿæœ‰ä»¥é©¬æ¥é…”R…ä¸ÞZ¸»é“¾æŽ¥æžEO或PO支链的。目前合成聚¾Ÿ§é…¸¾pÕd‡æ°?/span><span style="font-size:14px;">剂所选的单体主要有以下四¿Uï¼š</span><br /> <span style="font-size:14px;">      <u>1åQ‰ä¸é¥±å’Œé…¸â€”—如马来酔R…ã€é©¬æ¥é…¸å’Œä¸™çƒ¯é…¸ã€ç”²åŸÞZ¸™çƒ¯é…¸½{?/u><u>åQ?/u></span><br /> <span style="font-size:14px;">      <u>2åQ‰èšä¸™çƒ¯åŸºç‰©è´¨â€”—聚丙烯基烃及其含不同官能团的衍生物½{?/u>åQ?/span><br /> <span style="font-size:14px;">      <u>3åQ‰èšè‹¯ä¹™çƒ¯ç£ºé…¸ç›æˆ–é…¯½{?/u>åQ?/span><br /> <span style="font-size:14px;">      <u>4åQ‰ï¼ˆç”²åŸºåQ‰ä¸™çƒ¯é…¸ç›ã€é…¯æˆ–酰胺等</u>ã€?/span><br /> <span style="font-size:14px;">      具体采用的合成方法主要有以下三种ã€?/span><br /> <span style="font-size:14px;">      <u>1、先酯化后聚å?/u></span><br /> <span style="font-size:14px;">ž®±æ˜¯å…ˆå°†è„‚肪族羧酸单体,通常是丙烯酸或甲åŸÞZ¸™çƒ¯é…¸å•ä½“åQŒä¸Žèšä¹™äºŒé†‡é†šè¿›è¡Œé…¯åŒ–反应,在聚醚上引入</span><span style="font-size:14px;">‹zÀL€§åŒé”®ï¼Œ¾~©åˆæˆåˆ†å­é‡åœ?00è‡?000之间的活性大单体åQŒç„¶åŽç”±è¯¥å¤§å•ä½“与各¿Uç¾§é…¸å•ä½“共聚而得ã€?/span><br /> <span style="font-size:14px;">清华大学的李崇智用过量的丙烯é…怸Žä¸åŒåˆ†å­é‡çš„聚乙二醇部分酯化åQŒå¾—到系列的聚乙二醇单丙烯酸酯,</span><span style="font-size:14px;">再与(甲基)丙烯酸及(甲基)丙烯¼‚ºé…¸é’ å…±èšï¼Œæ‰€åˆæˆå‡æ°´å‰‚的水惔净‹¹†æµåŠ¨åº¦1h基本无变化。华东理工大</span><span style="font-size:14px;">学包志军½{‰çš„合成æ–ÒŽ³•å¦‚下åQšç¬¬ä¸€æ­¥åœ¨å››å£çƒ§ç“¶ä¸­ä¾‹Æ¡æŒ‰é…æ¯”加入聚乙二醇单甲醚、对苯二酚、对甲苯¼‚?/span><span style="font-size:14px;">酸和甲基丙烯酸,加热搅拌åQŒåƈ升温è‡?10℃,反应5ž®æ—¶åQŒå¾—到大分子单体(MAMPEC)åQ›ç¬¬äºŒæ­¥åŒæ—¶æ»´åŠ </span><span style="font-size:14px;">MAMPEG、丙烯酸和过¼‹«é…¸é“‰|°´æº¶æ¶²¾lå…±èšååº”后得成品,该äñ”品在0.8åQ…掺量时的减水率è¾?5.1åQ…。国å†?/span><span style="font-size:14px;">的研½I¶è€…大多采用此¿Uæ–¹æ³•ã€?/span><br /> <span style="font-size:14px;">       <u>2、先聚合后酯åŒ?/u></span><br /> <span style="font-size:14px;">½W¬ä¸€æ­¥å°†ä¸€¿Uæˆ–几种¾Ÿ§é…¸¾cÕd•ä½“在溶液中均聚或å…Þpšæˆé«˜èšç‰©åQŒåˆ†å­é‡ç”±å‡ åƒè‡³å‡ ä¸‡ä¸ç­‰åQŒç¬¬äºŒæ­¥ç”Þp¯¥é«?/span><span style="font-size:14px;">聚物与单甲氧åŸø™šä¹™äºŒé†‡é†šåœ¨å‚¬åŒ–剂作用下发生羃合反应,在高分子主链上引入聚醚侧链ã€?/span><br /> <span style="font-size:14px;">同济大学的王国徏½{‰é‡‡ç”¨è¯¥é€”径åQŒå…·ä½“步骤如下:在带有搅拌器和冷凝管的三颈瓶中,加入配方量的丙烯</span><span style="font-size:14px;">酸、苯乙烯和丙烯酸丁酯åQŒä»¥é†‹é…¸ä¹™é…¯ä¸ºæº¶å‰‚,偶æÛ二异丁腈为引发剂åQŒåŠ çƒ­å›ž‹¹ååº?ž®æ—¶åQŒå¾—到黄è‰?/span><span style="font-size:14px;">å…Þpšäº§ç‰©ã€‚在å…Þpšäº§ç‰©ä¸­åŠ å…¥ä¸€å®šé‡çš„端¾ŸŸåŸºèšæ°§ä¹™çƒ¯åŸºé†šåŠé€‚量催化剂进行酯化反应,反应˜q‡ç¨‹ä¸­å¸¸åŽ?/span><span style="font-size:14px;">蒔R¦å‡ºé†‹é…怹™é…¯å’Œæ°´çš„共沸物反åº?ï½?ž®æ—¶åQŒå¾—到棕黄色接枝产物。在接枝产物中加入适量的醋é…怹™é…¯ï¼Œ</span><span style="font-size:14px;">òq¶åœ¨å¸¸æ¸©ä¸‹æ»´åŠ æµ“¼‹«é…¸˜q›è¡Œ¼‚ºåŒ–反应åQŒæ»´åŠ ç»“束后反应2ž®æ—¶åQŒå¾—到深‹‚•è‰²¼‚ºåŒ–产物。再加入一定量çš?/span><span style="font-size:14px;">Na0H溶液快速搅拌直至磺化äñ”物完全溶解,得到最¾lˆäñ”品ã€?  </span><br /> <span style="font-size:14px;">该合成方法的优点是工艺简单,所有反应在一个反应釜中完成,且操作方便,成本低。但也有很多问题åQ?/span><span style="font-size:14px;">最大的éšùN¢˜æ˜¯éš¾äºŽæ‰¾åˆîC¸€¿Uåˆé€‚的溶剂作äؓ聚合反应的介质。如以水为溶剂,则难于保证所有单体都溶于</span><span style="font-size:14px;">æ°ß_¼Œå¦å¤–水也是活性较大的链è{¿UÕd‰‚åQŒè€Œä¸”ç”׃ºŽ¾~©åˆååº”是一可逆åã^衡反应,反应本èín要生成水åQŒå¤§é‡æ°´</span><span style="font-size:14px;">的存在不利于反应˜q›è¡Œã€‚采用有机溶剂尽½Ž¡èƒ½è§£å†³ä¸Šè¿°é—®é¢˜åQŒä½†åŒæ—¶ä¹ŸæŠ¹æ€äº†è¯¥æ–ÒŽ³•çš„最大优点——成æœ?/span><span style="font-size:14px;">低,同时åQŒå¯¹çŽ¯å¢ƒä¼šé€ æˆä¸å¯é¿å…çš„污染,也不½W¦åˆå¯æŒ¾l­å‘展的要求ã€?/span><br /> <span style="font-size:14px;">       <u>3ã€?原位聚合与接æž?/u></span><br /> <span style="font-size:14px;">ä¸ÞZº†å…‹æœèšåˆåŽåŠŸèƒ½åŒ–法的¾~ºç‚¹,开发了此工è‰? 此方法是在主链聚合的同时引入侧链。聚醚作为羧酸类</span><span style="font-size:14px;">不饱和单体的反应介质åQŒå…‹æœäº†èšç¾§é…怸Žèšé†šç›¸å®¹æ€§ä¸å¥½çš„问题。该æ–ÒŽ³•æ˜¯å°†ä¸™çƒ¯é…¸ç±»å•ä½“åQŒé“¾è½¬ç§»å‰‚ã€?/span><span style="font-size:14px;">引发剂的混合液逐步滴加到装有的甲氧åŸø™šä¹™äºŒé†‡çš„水溶液中åQŒåœ¨ä¸€å®šæ¡ä»¶ä¸‹ååº”制得。这¿Uæ–¹æ³•è™½ç„¶å¯</span><span style="font-size:14px;">以控制聚合物的分子量,但主链一般也只能选择å?COOH基团的单ä½?否则很难接枝,且这¿UæŽ¥æžååº”是可é€?/span><span style="font-size:14px;">òqŒ™¡¡ååº”,反应前体¾pÖM¸­å·²æœ‰å¤§é‡çš„水存在,其接枝度不会很高且难以控制。此æ–ÒŽ³•å·¥è‰º½Ž€å?生äñ”成本è¾?/span><span style="font-size:14px;">低,但分子设计比较困难ã€?/span><br /> <span style="font-size:14px;">一般,å…Þpšååº”采用自由基溶液聚合法åQŒä»¥æ°´äؓ溶剂åQŒç”¨˜q‡ç¡«é…”R“µä¸ºå¼•å‘剂æ—Óž¼Œæœ‰ä¸¤¿Uåˆæˆæ–¹æ³•ï¼š1)¿Uå­</span><span style="font-size:14px;">聚合法,ž®†éƒ¨åˆ†å•ä½“及部分溶剂和少量引发剂加入反应瓶中åQŒåŠ çƒ­ä‹É聚合反应开始后¾l§ç®‹ž®†å‰©ä½™å•ä½“、溶</span><span style="font-size:14px;">剂和引发剂连¾l­åŠ å…¥ååº”瓶中;2)一‹Æ¡åŠ å…¥æ³•åQŒå°†å…¨éƒ¨å•ä½“及全部溶剂加入反应瓶中,加热后连¾l­åŠ å…¥å¼•</span><span style="font-size:14px;">发剂˜q›è¡Œååº”ã€?/span><br /> <span style="font-size:14px;">        “科宝UB牌”系列äñ”品凭借具有徏½{‘材料领域的¿U‘技开发优势,产品在国内外建筑行业òq¿æ³›ä½¿ç”¨åQŒå¸‚</span><span style="font-size:14px;">场占有率均居行业前列åQŒå…·æœ‰ä¸€å®šçš„知名度和影响力,造就新行业品牌,产品销往于中山、珠‹¹—÷€ç•ª¼›ºã€?/span><span style="font-size:14px;">òq¿å·žã€ä½›å±±ã€æ·±åœŸë€ä¸œèŽžã€æ±Ÿé—¨ç­‰ç ä¸‰è§’地区及周边城市乃至全国地区ã€?/span><br /> <span style="font-size:14px;">        ¿U‘宝åQŒåœ¨å¸‚场风雨中前行,以澎湃的气势åQŒä¸æŠ˜ä¸é¥¶çš„¾_„¡¥žåQŒæ‰“造品牌化道èµ\åQŒç”¨æˆ‘们的专业知识与</span><span 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