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蘇州晶塑米新材料供應(yīng)</p><div id="z7upwdk" class="leftbox clearfix"><h1>美國(guó)杜邦POM511DP 誠(chéng)信經(jīng)營(yíng) 蘇州晶塑米新材料供應(yīng)</h1><div id="gjbf7jq" class="proBig"><div id="uctqho8" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288104344052/9376211.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="gugcj2j" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288104344052/9376211.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="sbdkwn2" 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>美國(guó)杜邦POM511DP,POM</p><p><span>***更新：</span>2020-12-23 02:17:43</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="sgyuwxe" 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="7qf3plx" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="zseqxef" class="box"><p><p style="text-indent:25px">聚甲醛是一種高科技、高投人、高附加值的“三高”產(chǎn)品，其生產(chǎn)和加工具有較高的技術(shù)含量和經(jīng)濟(jì)附加值，是跨國(guó)公司生產(chǎn)廠商的利益中心之一16。我國(guó)聚甲醛市場(chǎng)潛力巨大，聚甲醛主要用于汽車和電子電器等行業(yè)，這些均是關(guān)系國(guó)計(jì)民生的戰(zhàn)略性行業(yè)17。因此，美國(guó)杜邦POM511DP，國(guó)內(nèi)應(yīng)加大聚甲醛在汽車工業(yè)中的應(yīng)用，一方面促進(jìn)我國(guó)聚甲醛工業(yè)的發(fā)展，另一方面利于促進(jìn)汽車國(guó)產(chǎn)化進(jìn)程，隨著我國(guó)汽車工業(yè)的國(guó)產(chǎn)化進(jìn)程日益加快，美國(guó)杜邦POM511DP，美國(guó)杜邦POM511DP，汽車工業(yè)將是未來(lái)聚甲醛消費(fèi)增長(zhǎng)zui快的領(lǐng)域之一。聚甲醛很不耐酸，不耐強(qiáng)堿和不耐太陽(yáng)光紫外線的輻射。美國(guó)杜邦POM511DP</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="美國(guó)杜邦POM511DP,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288104344052/9376211.png"></div><p style="text-indent:25px">聚甲醛抗靜電、絕緣改性：聚甲醛絕緣性能特別好，這使得聚甲醛容易產(chǎn)生靜電，從而限制了聚甲醛在石油化工廠及粉塵環(huán)境中的使用。通過添加一定比例的聚乙二醇可使聚甲醛具有永遠(yuǎn)的抗靜電效果。此外，可以通過添加碳納米管、炭黑等常用導(dǎo)電材料以提高聚甲醛的導(dǎo)電性質(zhì)。聚甲醛抗老化、光穩(wěn)定性改性：聚甲醛對(duì)紫外線非常敏感，在強(qiáng)烈的陽(yáng)光暴曬下，表面會(huì)變得粗糙。使用受阻胺622、292或苯并三唑類紫外線吸收劑UV—P對(duì)聚甲醛進(jìn)行紫外光保護(hù)，也可用炭黑進(jìn)行改性。多POM聚甲醛是一種表面光滑，有光澤的硬而致密的材料，淡黃或白色，可在-40-100°C溫度范圍內(nèi)長(zhǎng)期使用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="美國(guó)杜邦POM511DP,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288301697668/3489607.png"></div><p style="text-indent:25px">生產(chǎn)均聚甲醛的工藝：均聚甲醛是三聚甲醛的均聚體，在抗疲勞強(qiáng)度和延展強(qiáng)度方面都有著非常出色的表現(xiàn)，但是對(duì)其進(jìn)行加工時(shí)有著一定的難度，而且在進(jìn)行加工時(shí)其加工溫度的范圍是比較小的，在成型時(shí)熱分解、熱穩(wěn)定性、熱劣化特性、耐酸堿腐蝕性以及耐熱水性等方面均聚甲醛是不如共聚甲醛的。但是均聚甲醛的結(jié)晶度是非常高的，在彈性率、強(qiáng)度以及表征物理耐熱性的復(fù)合彎曲溫度方面要略好于共聚甲醛。同時(shí)聚甲醛具備著十分較好的剛性，其拉伸強(qiáng)度zui高可達(dá)到68.9MPa，而且均聚甲醛的摩擦因素比較小、耐磨性比較好，但是均聚甲醛在耐酸和穩(wěn)定性方面是比較差的。</p><p style="text-indent:25px">簡(jiǎn)介：縮醛樹脂是強(qiáng)而硬且有良好疲勞性和熱穩(wěn)定性的熱塑(性)塑料，它電具有低的摩擦系數(shù)和良好的耐熱性以認(rèn)為縮醛樹脂類似于尼龍，但它的耐疲勞性、耐蠕變性、硬度和耐水性比尼龍更好。但是縮醛樹脂的抗蠕變能力不如聚碳酸酯。如前所述，縮醛樹脂具有優(yōu)異的耐溶劑性，還沒有找到在70℃以下可以溶解縮醛樹脂的有機(jī)溶劑；但是它可以在某些溶劑中溶脹?？s醛樹脂對(duì)酸、堿和氧化劑敏感。盡管C—O鍵是極性的．但它已被平衡．且極性比尼龍中的羰基小得多，其結(jié)果導(dǎo)致縮醛樹脂具有相對(duì) 低的吸濕性。吸附的少量濕氣可能引起溶脹和尺寸變化，但不會(huì)導(dǎo)致聚合物水解而降解。濕氣的影響比尼龍聚合物小得多。紫外線光町能會(huì){f起聚合物降解，町以通過加入炭黑來(lái)降低這種降解。共聚物通常具有和均聚物類似的性質(zhì)，但均聚物的力學(xué)性能比共聚物稍高一些．其熔點(diǎn)也更高，但其熱穩(wěn)定性和耐堿性比共聚物差。均聚物和共聚物都是填充填料(玻璃纖維、含氟聚合物、芳族聚酰胺纖維和其他填料)制成增韌級(jí)、紫外線光(UV)穩(wěn)定級(jí)材料?？s醛樹脂與聚氨酯彈性體共混提高其韌性，這些材料都可以在市場(chǎng)上買到。聚甲醛其他原料更換為聚甲醛時(shí)，除了加工溫度比聚甲醛低的物料或相近的物料，必須用聚乙烯清洗過渡。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="美國(guó)杜邦POM511DP,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387287966590273/3008050.png"></div><p style="text-indent:25px">POM改性的意義： POM在成形加工過程中極易結(jié)晶，生成尺寸較大的球晶，當(dāng)材料受到?jīng)_擊時(shí)，這些尺寸較大的球晶容易形成應(yīng)力集中點(diǎn)，造成材料的破壞，所以POM缺口敏感性大，缺口沖擊強(qiáng)度低，成型收縮率高, 制品易產(chǎn)生內(nèi)應(yīng)力, 難于緊密成型。這極大地限制了POM的使用范圍，在某些方面不能滿足工業(yè)要求，因此，為了更好地適應(yīng)高速、高壓、高溫、高負(fù)荷等苛刻的工作環(huán)境，進(jìn)一步擴(kuò)大POM的應(yīng)用范圍，需進(jìn)一步提高聚甲醛的沖擊韌性，耐熱和耐摩擦等性能。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。多POM</p><p style="text-indent:25px">聚甲醛具有優(yōu)良的電絕緣性、耐溶劑性和可加工性，是五大通用工程塑料之一。美國(guó)杜邦POM511DP</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脂都可買到。在加工過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)過程中過熱?？s醛樹脂應(yīng)在干燥的地方儲(chǔ)存?？s醛樹脂的表觀粘度對(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年縮醛樹脂的市場(chǎng)需求量為3.68億lb。縮醛樹脂的應(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。縮醛樹脂主要用于注射成型，其次用于擠出板材和棒材?？s醛樹脂的低摩擦系數(shù)使之可用以制造良好的軸承。美國(guó)杜邦POM511DP</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)易型的公司。公司業(yè)務(wù)分為PA66，PC，POM，PLA等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競(jìng)爭(zhēng)力，努力學(xué)習(xí)行業(yè)知識(shí)，遵守行業(yè)規(guī)范，植根于橡塑行業(yè)的發(fā)展。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2519537.html</p></div></div></div></div></div><div id="kjahzbd" class="page-right twoColRt"><div id="2lsjqco" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="utv3zqx" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="vz3j3pg" 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