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id="bvbhvjh" class="pro">  <div id="nvvpfvf" class="content fl"> <div id="zjzbftr" class="prodetail clear clearfix"> <div id="5z5fxxv" class="picslider fl"> <div id="v5l5355" class="pro_wrap"> <div class="nlp7dll" id="preview" class="proimg_bk2"> <div id="5ldj5t3" class="jqzoom proimg"> <img id=bigImg src="http://img71.hbzhan.com/gxhpic_f8e8d9e2a0/fb78668e8aa15784cbf2b4fdd2bb010c5a8529c7758ceab38cc1470fa9c537b8238362c4ca316517_600_600_5.png" jqimg="http://img71.hbzhan.com/gxhpic_f8e8d9e2a0/fb78668e8aa15784cbf2b4fdd2bb010c5a8529c7758ceab38cc1470fa9c537b8238362c4ca316517_600_600_5.png" > </div> </div> </div> <div id="rj5dfrf" class="smallImg"> <div id="lxzhv5z" class="smallImg_in"> <ul> <li id="pnzbtv5" class=""> <table> <tr> <td><img src="http://img71.hbzhan.com/gxhpic_f8e8d9e2a0/fb78668e8aa15784cbf2b4fdd2bb010c021583730130b0fa6af23550d56051a253138641c668744d_600_600_5.jpg" alt=""></td> </tr> </table> </li> <li id="p5xlznl" class=""> <table> <tr> <td><img 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<div id="v5b5p55" class="prodetail_ms"> <strong>產(chǎn)品描述：</strong>陰|陽兩性離子丙烯酰胺價格開發(fā)了一種對非離子聚丙烯酰胺進(jìn)行改性制備兩性聚丙烯酰胺（APAM）絮凝劑的新方法。以硅藻土懸浮液為絮凝對象,考察了改性反應(yīng)中影響APAM絮凝效果的因素。結(jié)果表明,采用無水乙酸與*an、環(huán)氧氯丙烷合成季胺鹽型陽離子劑的方法優(yōu)于采用鹽酸的方法;在10mL質(zhì)量分?jǐn)?shù)為10%、相對分子質(zhì)量為3×106的非離子型聚丙烯酰胺水溶液中加入8mL濃度為2.6mol/L的陽離子劑 </div> <p><span>發(fā)布時間：</span>2019-11-26</p> <p><span>瀏覽次數(shù)：</span>745</p> <div id="7xzrvf5" class="product_btn"> <a href="/order.html" class="probtn1" rel="nofollow">在線詢價</a> <a href="/contact.html" class="probtn2" rel="nofollow">聯(lián)系我們</a> </div> </div> </div> <div id="vf73lpz" class="pro_list"> <div id="j5nfxtb" class="pro_con"> <div id="jvlbpbz" class="pro_gs"> <div id="jhnbt5x" class="gs_tit"><h3>產(chǎn)品概述</h3></div> <div id="zxbrzzx" class="gs_text"> <p><strong>陰|陽兩性離子丙烯酰胺價格</strong></p><p>開發(fā)了一種對非離子聚丙烯酰胺進(jìn)行改性制備兩性聚丙烯酰胺(APAM)絮凝劑的新方法。以硅藻土懸浮液為絮凝對象,考察了改性反應(yīng)中影響APAM絮凝效果的因素。結(jié)果表明,采用無水乙酸與*an、環(huán)氧氯丙烷合成季胺鹽型陽離子劑的方法優(yōu)于采用鹽酸的方法;在10mL質(zhì)量分?jǐn)?shù)為10%、相對分子質(zhì)量為3×106的非離子型聚丙烯酰胺水溶液中加入8mL濃度為2.6mol/L的陽離子劑,同時控制V(NaOH)∶V(NaClO)為0.44,改性得到的APAM絮凝性能jia,在pH3～9的較寬范圍內(nèi)對硅藻土懸浮液有較好的絮凝效果。在pH為3、APAM加入量為1.8mg/L時,硅藻土懸浮液的絮凝率可達(dá)100%。</p><p>　兩性離子聚丙烯酰胺是由乙烯酰胺是和乙烯基陽離子單體丙烯酰胺單體，水解共聚而成。經(jīng)紅外線光譜分析，該產(chǎn)品鏈結(jié)上不但有丙烯酰胺水解后的“羧基陰電荷，而且還有乙烯基陽電荷。因此，構(gòu)成了分子鏈上既有陽電荷，又有陰電荷的兩性離子不規(guī)則聚合物。<br /> </p><p>非離子聚丙烯酰胺系列產(chǎn)品是具有高分子量的低離子度的線性高聚物。由于其具有特殊的基團(tuán)，便賦予它具有絮凝、分散、增稠、粘結(jié)、成膜、凝膠、穩(wěn)定膠體的作用。污水處理劑：當(dāng)懸浮性污水顯酸性時，采用非離子聚丙烯酰胺作絮凝劑較為合適。這時PAM起吸附架橋作用，使懸浮的粒子產(chǎn)生絮凝沉淀，達(dá)到凈化污水的目的。也可用于自來水的凈化，尤其是和無機(jī)絮凝劑配合使用，在水處理中效果jia。<br /> </p><p>陽離子聚丙烯酰胺</p><p>　　陽離子聚丙烯酰胺是近幾年發(fā)展快的品種，在西方發(fā)達(dá)國家其年增長率為5～10%，已占聚丙烯酰胺總產(chǎn)量的60%以上。我國的情況比較特殊，陰離子聚丙烯酰胺占總產(chǎn)量的90%以上，主要用于石油開采，陽離子聚丙烯酰胺產(chǎn)量很小而且生產(chǎn)企業(yè)規(guī)模也很小，幾乎沒有形成一定規(guī)模的生產(chǎn)裝置。隨著水處理行業(yè)的飛速發(fā)展，對陽離子聚丙烯酰胺需求高速增長，相信國內(nèi)陽離子聚丙烯酰胺將會在近幾年有一個較大的發(fā)展。</p><p>　　陽離子聚丙烯酰胺主要包括以下三種：低分子量聚胺類、丙烯酰胺與陽離子單體共聚類和非離子聚丙烯酰胺改性類。聚胺類包括聚乙烯亞胺、聚乙烯咪唑啉、胺—表氯醇縮合物及其改進(jìn)產(chǎn)品，這類產(chǎn)品電荷密度高但分子量低，主要用于功能性造紙?zhí)砑觿⑹烷_采和化妝品等行業(yè)，很少用于污泥脫水。丙烯酰胺與陽離子單體共聚類陽離子聚合物產(chǎn)量大，陽離子單體主要指（甲基）丙烯酰氧乙基*基氯化銨（DMC）和二甲基二烯丙基氯化胺（DMDAC），其中P（AM—DMC）產(chǎn)品分子量較高，陽離子度0～100%之間可調(diào)，粉狀陽離子聚丙烯酰胺幾乎全部屬于此類結(jié)構(gòu)，我國用于污泥脫水的粉狀陽離子聚丙烯酰胺亦屬于此類，產(chǎn)品分子量400～600萬，陽離子度30～50%，其主要問題在于DMC需要進(jìn)口，價格昂貴，導(dǎo)致生產(chǎn)成本較高。對于P（AM—DMDAC）而言，由于DMDAC單體空間位阻較大，聚合活性差，很難制備分子量和陽離子度都令人滿意的產(chǎn)品，所以用于污泥脫水的不多，而且DMDAC吸水性*，該類產(chǎn)品通常為液狀。非離子聚丙烯酰胺的酰胺基可與多種試劑反應(yīng)，其中與甲醛二甲an反應(yīng)可生成叔胺結(jié)構(gòu)聚合物，進(jìn)一步季胺化生成季胺鹽。由于聚丙烯酰胺水溶液的粘度非常大，通常600～800萬分子量時2%濃度已很粘稠，這就給水溶液反應(yīng)帶來困難，由于PAM濃度很低，導(dǎo)致陽離子度通常不會超過10%且殘余甲醛濃度較高。對于污泥中有機(jī)質(zhì)含量不高的縣級污水處理廠而言，低成本的非離子聚丙烯酰胺Mannich變性產(chǎn)品是適用的。</p><p><strong>陰|陽兩性離子丙烯酰胺價格</strong></p><p> </p><p>絮凝與污泥調(diào)質(zhì)處理</p><p>　　絮凝是通過有機(jī)高分子絮凝劑對懸浮液（或膠體）中細(xì)小顆粒的電中和和吸附架橋使其脫穩(wěn)的過程，有機(jī)高分子絮凝劑必須具有較高的相對分子量和線性結(jié)構(gòu)以及適度的電荷密度，其分子結(jié)構(gòu)、離子形態(tài)、強(qiáng)度和分布、分子量和分布及支化程度等都會對絮凝效果產(chǎn)生影響，針對給定懸浮液特點(diǎn)合成確切結(jié)構(gòu)的絮凝劑，使絮凝劑產(chǎn)品形成系列化是科研工作者共同的任務(wù)。</p><p>　　城市污水處理廠污泥脫水調(diào)質(zhì)處理是有機(jī)高分子絮凝劑應(yīng)用的重要方面，污泥分為生污泥（初沉污泥和剩余污泥）和消化污泥，應(yīng)根據(jù)污泥的種類和性質(zhì)選擇有機(jī)高分子絮凝劑。污泥中VSS/SS（SS中有機(jī)物比例）較高時，應(yīng)盡量選用陽離子度高的絮凝劑，并增加絮凝劑投加量；污泥中SS濃度高時，應(yīng)選用高分子量的絮凝劑，SS濃度低時，可選用分子量較低的絮凝劑；污泥PH高時（消化污泥），應(yīng)選用官能團(tuán)為季銨鹽結(jié)構(gòu)的絮凝劑，pH低時，叔胺和季銨鹽結(jié)構(gòu)的絮凝劑均可使用。</p> </div> </div> </div> <link rel="stylesheet" type="text/css" href="/css/MessageBoard_style.css"> <script language="javascript" src="/skins/Scripts/order.js?v=20210318" type="text/javascript"></script> <a name="order" id="order"></a> <div id="5p5x555" class="ly_msg" id="ly_msg"> <form method="post" name="form2" id="form2"> <h3>留言框 </h3> <ul> <li> <h4 class="xh">產(chǎn)品：</h4> <div id="ljph75v" 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