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class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="l2ut8vn" class="twoCol"><div id="pli3skm" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-huagong_quan/">醛</a>?<a href="http://www.cdcfah.com/cp/third-quan_djjq/">多聚甲醛</a>?日本旭化成POM8520 歡迎來(lái)電蘇州晶塑米新材料供應(yīng)</p><div id="gq7vpro" class="leftbox clearfix"><h1>日本旭化成POM8520 歡迎來(lái)電蘇州晶塑米新材料供應(yīng)</h1><div id="r7wofxu" class="proBig"><div id="mgx9pry" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387287884734903/8623844.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="kzbk2mj" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387287884734903/8623844.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="smoyzbi" 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>日本旭化成POM8520,POM</p><p><span>***更新：</span>2021-01-12 06:18:11</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="kzbypry" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘇州晶塑米新材料有限公司</a></p><p><span>聯(lián)系人：</span>李麗</p><p><span>郵箱: </span>321260043@qq.com</p><p><span>電話: </span>15162619982</p><p><span>傳真: </span>151_</p><p><span>網(wǎng)址: </span>http://szjingsumi.shop.88360.com</p><p><span>手機(jī): </span>151-62619982</p><p><span>地址: </span>陸家鎮(zhèn)陸豐東路3號(hào)仕泰隆模具城17-8號(hào)</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="ty3o4o8" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ox38e2l" class="box"><p><p style="text-indent:25px">用于注射成型、注塑成型和擠出成型的縮醛樹(shù)脂都可買到。在加工過(guò)程中重要的是不要超溫或由于產(chǎn)生甲醛而引起的嚴(yán)重超壓。聚合物在關(guān)機(jī)前應(yīng)清洗干凈，以免在啟動(dòng)過(guò)程中過(guò)熱?？s醛樹(shù)脂應(yīng)在干燥的地方儲(chǔ)存?？s醛樹(shù)脂的表觀粘度對(duì)剪切應(yīng)力和溫度的依賴性比聚烯烴小，但是其熔體卻具有低彈性和低強(qiáng)度。低的熔體強(qiáng)度是應(yīng)用吹塑成型時(shí)存在的一個(gè)問(wèn)題。對(duì)吹塑成型來(lái)說(shuō)，帶有支鏈結(jié)構(gòu)的共聚物更適用。結(jié)晶速度很快，模塑后收縮可在成型后的48h內(nèi)完成。由于快速結(jié)晶很難制得透明薄膜。美國(guó)和加拿大l997年縮醛樹(shù)脂的市場(chǎng)需求量為3.68億lb?？s醛樹(shù)脂的應(yīng)用包括：齒輪、輥筒、管道部件、泵零件、風(fēng)扇葉片、吹塑膜制的空氣溶膠容器、模制鏈輪和鎖鏈，它經(jīng)常用以直接取代金屬，日本旭化成POM8520?？s醛樹(shù)脂主要用于注射成型，日本旭化成POM8520，日本旭化成POM8520，其次用于擠出板材和棒材?？s醛樹(shù)脂的低摩擦系數(shù)使之可用以制造良好的軸承。聚甲醛添加PTFE、PE、UHMWPE 等自身摩擦系數(shù)較低的結(jié)晶性高分子材料。日本旭化成POM8520</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="日本旭化成POM8520,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387287884734903/8623844.png"></div><p style="text-indent:25px">特點(diǎn)：POM為乳白色不透明結(jié)晶性線性熱塑性樹(shù)脂，具有良好的綜合性能和著色性，具有較高的彈性模量，很高的剛性和硬度，比強(qiáng)度和比剛性接近于金屬；拉伸強(qiáng)度，彎曲強(qiáng)度，耐蠕變性和耐疲勞性優(yōu)異，耐反復(fù)沖擊，去載回復(fù)性優(yōu)；摩擦系數(shù)小，耐磨耗，尺寸穩(wěn)定性好，表面光澤好，有較高的粘彈性，電絕緣性優(yōu)，且不受溫度影響；耐絕緣性好且不受濕度影響；耐化學(xué)藥品性優(yōu)：除了強(qiáng)酸、酚類和有機(jī)鹵化物外，對(duì)其他化學(xué)品穩(wěn)定，耐油；機(jī)械性能受溫度影響小，具有較高的熱變形溫度。缺點(diǎn)是阻燃性較差，遇火徐徐燃燒，氧指數(shù)小，即使添加阻燃劑也得不到滿意的要求，另外耐候性不理想，室外應(yīng)用要添加穩(wěn)定劑。日本旭化成POM8520聚甲醛為乳白色不透明結(jié)晶性線性熱塑性樹(shù)脂，有良好的綜合性能和著色性，具有較高的彈性模量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="日本旭化成POM8520,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387287966590273/3008050.png"></div><p style="text-indent:25px">POM改性研究的關(guān)鍵： 1、POM的物理改性關(guān)鍵在于復(fù)合體系相間的相容性，應(yīng)加大多功能增容劑的開(kāi)發(fā)研究。新開(kāi)發(fā)的凝膠體系及原位聚合離聚體增韌使復(fù)合體系形成穩(wěn)定互穿網(wǎng)絡(luò)，是解決相間相容性的新的研究方向。 2、POM的化學(xué)改性關(guān)鍵在于在合成過(guò)程中通過(guò)選擇共聚單體在分子鏈中引入多功能基團(tuán)，為進(jìn)一步的改性提供條件；調(diào)節(jié)共聚單體數(shù)量、優(yōu)化分子結(jié)構(gòu)的設(shè)計(jì)，合成系列化、功能化和高性能化POM。POM改性研究的技術(shù)路線填充增強(qiáng)改性：將無(wú)機(jī)材料如Al2O3、氧化鎂、玻璃纖維、碳纖維、玻璃微珠、云母、滑石粉、碳酸鈣、白炭黑、鈦酸鉀等通過(guò)熔融共混加入到聚甲醛中，從而提高聚甲醛的強(qiáng)度、剛度、硬度、熱變形溫度以及尺寸穩(wěn)定性。填充增強(qiáng)類聚甲醛主要應(yīng)用于制備機(jī)械結(jié)構(gòu)復(fù)雜、薄形精密零件及工程制品。</p><p style="text-indent:25px">再生聚甲醛加什么可以增加韌性和光澤：由于POM結(jié)晶度較高，結(jié)晶晶粒較大，缺口沖擊強(qiáng)度低，往往以脆性方式斷裂，所以改善POM的沖擊韌性主要有2種方法： (1) 彈性體增韌（常用的彈性體如TPU、EPDM、丁腈橡膠、硅橡膠等）; (2) 剛性粒子增韌（常用的有滑石粉、硅藻土、二氧化鈦、碳酸鈣、玻璃微珠等），POM料本身具有表面光滑，有光澤的特點(diǎn)，所以也可以通過(guò)從加工助劑方面來(lái)提高其光澤性，如加入適量的脫模劑，內(nèi)潤(rùn)滑劑等。聚甲醛增韌TPU選擇哪種？用何相容劑？ (1) 采用不同種類的 TPU對(duì)聚甲醛進(jìn)行增韌改性，結(jié)果發(fā)現(xiàn)，聚己內(nèi)酯共聚酯型 TPU 的增韌效果較好； (2) 且TPU的用量對(duì)增韌材料的性能有較大影響，當(dāng)TPU用量為40%時(shí)，由于共混物形成雙連續(xù)相結(jié)構(gòu)，沖擊性能發(fā)生突變，增韌效果zui佳； (3) 也可以通過(guò)添加 SEBS-g-MA 作增容劑。聚甲醛具有較高的熱變形溫度。缺點(diǎn)是阻燃性較差，遇火徐徐燃燒，氧指數(shù)小。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="日本旭化成POM8520,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288132771805/7721743.png"></div><p style="text-indent:25px">生產(chǎn)共聚甲醛的工藝:共聚甲醛的生產(chǎn)工藝和均聚甲醛的生產(chǎn)工藝相比較而言，共聚甲醛的生產(chǎn)工藝就要簡(jiǎn)單的多，在加工的過(guò)程中經(jīng)過(guò)熱分解而產(chǎn)生的甲醛氣體是非常的少的。經(jīng)過(guò)改性之后得到的共聚甲醛在各個(gè)方面的性能都要超過(guò)均聚甲醛。所以說(shuō)，共聚甲醛將成為日后聚甲醛發(fā)展的主流方向。共聚甲醛的生產(chǎn)工藝比較流行的就是本體聚合法，這種工藝比較簡(jiǎn)單，而且成本也是非常的低，目前國(guó)內(nèi)外基本都是采用這種制作工藝。這種工藝的具體做法就是將純?nèi)奂兹?、三氟化?*絡(luò)合物和二氧戊環(huán)按照一定的比例進(jìn)行融合，然后將其放在一個(gè)有著混合和強(qiáng)剪切作用的連續(xù)捏合機(jī)或者是雙螺桿反應(yīng)器之中，等到其完全完成了聚合反應(yīng)之后略作處理，就會(huì)得到顆粒狀的共聚甲醛，然后將其進(jìn)行粉碎、連續(xù)穩(wěn)定化，將其中的熱不穩(wěn)定成分去除，等到徹底的干燥后進(jìn)行混合，zui后加入抗氧劑等添加劑，通過(guò)擠出進(jìn)行造粒。聚甲醛添加導(dǎo)電性炭黑是制造導(dǎo)電的常用方法。日本旭化成POM8520</p><p style="text-indent:25px">聚甲醛耐沖擊和降低模具沉積牌號(hào)，也有無(wú)機(jī)填充，增強(qiáng)牌號(hào)。日本旭化成POM8520</p><p style="text-indent:25px">國(guó)內(nèi)聚甲醛的生產(chǎn)現(xiàn)狀：我國(guó)內(nèi)地目前能夠掌握POM生產(chǎn)技術(shù)，正式生產(chǎn)POM的企業(yè)并不多，產(chǎn)品規(guī)模小，其中云天化只能生產(chǎn)幾個(gè)牌號(hào)的產(chǎn)品，上海藍(lán)星也只有10余個(gè)牌號(hào)，而國(guó)際主要跨國(guó)公司都有30～40個(gè)牌號(hào)可以選擇。因此，無(wú)論從生產(chǎn)規(guī)模還是品種看，國(guó)內(nèi)POM生產(chǎn)技術(shù)都還處于相對(duì)落后的狀態(tài)，工藝技術(shù)尚存在一些缺陷，原材料及公用工程消耗較高，產(chǎn)品質(zhì)量不夠穩(wěn)定，再加上國(guó)外產(chǎn)品傾銷的市場(chǎng)價(jià)格競(jìng)爭(zhēng)，各廠生產(chǎn)的POM遠(yuǎn)遠(yuǎn)不能滿足國(guó)內(nèi)需求，以及抵御國(guó)外產(chǎn)品大規(guī)模的沖擊。日本旭化成POM8520</p><p style="text-indent:25px">蘇州晶塑米新材料有限公司致力于橡塑，是一家貿(mào)易型公司。公司業(yè)務(wù)涵蓋PA66，PC，POM，PLA等，價(jià)格合理，品質(zhì)有保證。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠(chéng)信為本的理念，打造橡塑良好品牌。蘇州晶塑米立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2811855.html</p></div></div></div></div></div><div id="3vcel8c" class="page-right twoColRt"><div id="lacew8w" class="box01 margin10 clearfix"><h3><a 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