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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288163318668/8954645.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="mvs33lx" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288163318668/8954645.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="mln84oa" 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>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>進口POM哪家好,POM</p><p><span>***更新：</span>2020-11-14 05:24:37</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="jdkhtie" 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: </span>151-62619982</p><p><span>地址: </span>陸家鎮(zhèn)陸豐東路3號仕泰隆模具城17-8號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8ihtvmd" class="page-proshow02"><p class="title">詳細說明</p><div id="uoqxjax" class="box"><p><p style="text-indent:25px">聚甲醛技術(shù)發(fā)展方向分析：我國已成為世界聚甲醛生產(chǎn)大國，外資公司紛紛進入我國建設(shè)生產(chǎn)裝置。但目前國內(nèi)中資聚甲醛生產(chǎn)裝置所采用技術(shù)大都從國外引進，且基本為“二流”技術(shù)。我國聚甲醛生產(chǎn)技術(shù)水平提高緩慢，進口POM哪家好，產(chǎn)品質(zhì)量不穩(wěn)定，仍不能滿足國內(nèi)高級市場需求。國內(nèi)企業(yè)生產(chǎn)大多為普通牌號的低端產(chǎn)品，產(chǎn)品結(jié)構(gòu)單一，高級和**改性產(chǎn)品則主要依賴進口。國外改性產(chǎn)品系列和品種眾多，高級改性產(chǎn)品的應(yīng)用量已經(jīng)達到了30%以上。聚甲醛電纜護套阻燃性差： POM本身的阻燃性是比較差（比一般的合成高分子材料都易燃），且熱穩(wěn)定性差，所以POM阻燃很難做到V0，通?？赏ㄟ^加入阻燃劑來提高其阻燃性，但由于POM的分子結(jié)構(gòu)特點，進口POM哪家好，常規(guī)的含鹵阻燃劑體系如鹵代磷酸酯、鹵化石蠟、三氧化二銻，在加入到POM中，不僅不會提高材料的阻燃性，反而會加劇聚甲醛的燃燒。建議可加入膨脹型阻燃劑：如紅磷、磷酸鹽、氫氧化鋁（鎂）、三氰尿酸和聚氰胺鹽等或其中幾種復(fù)配使用，進口POM哪家好。聚甲醛固體狀的聚甲醛結(jié)晶度達75、80％，是一種高結(jié)晶性聚合物。進口POM哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="進口POM哪家好,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288163318668/8954645.png"></div><p style="text-indent:25px">結(jié)構(gòu): 聚甲醛的分子是一種沒有側(cè)鏈的高密度、高結(jié)晶性的線型聚合物。由于C-O鍵的鍵長小于C-C鍵，因此聚甲醛鏈軸方向的填充密度大。與聚乙烯相比，聚甲醛的碳氧鍵短，內(nèi)聚能密度高，密度大。按其分子鏈中化學結(jié)構(gòu)的不同，可分為均聚甲醛和共聚甲醛兩種。兩者的重要區(qū)別是：均聚甲醛密度、結(jié)晶度、熔點都高，但熱穩(wěn)定性差，加工溫度范圍窄（約10℃），對酸堿穩(wěn)定性略低；而共聚甲醛密度、結(jié)晶度、熔點、強度都較低，但熱穩(wěn)定性好，不易分解，加工溫度范圍寬（約50℃），對酸堿穩(wěn)定性較好。是具有優(yōu)異的綜合性能的工程塑料。有良好的物理、機械和化學性能，尤其是有優(yōu)異的耐摩擦性能。俗稱賽鋼或奪鋼，為第三大通用塑料。適于制作減磨耐磨零件,傳動零件,以及化工,儀表等零件。南京功能性POM價格聚甲醛具抗熱強度，彎曲強度，耐疲勞性強度均高，耐磨性和電性能優(yōu)良。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="進口POM哪家好,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288190223042/1024526.png"></div><p style="text-indent:25px">聚甲醛注射過程中應(yīng)注意哪些事項：物料過熱（超過240℃)或受熱時間過長，容易分解,產(chǎn)生相當量的甲醛。部分甲醛將進而氧化成甲酸，并引起大量甲醛氣體的產(chǎn)生，嗆人、流淚、咳嗽，甚至可能引起傷人。操作上應(yīng)切實予以注意： (1) 盡量采用低的料筒溫度和噴嘴溫度； (2) 先將料筒溫度升至150℃ ,等15min后再升至正常加工溫度； (3) 發(fā)現(xiàn)分解的預(yù)兆后，馬上對空注出巳分解的物料，分析原因，采取措施； (4) 停車前15min,停止料筒加熱，注出料筒內(nèi)的物料。料筒內(nèi)應(yīng)不留大量剩料； (5) 其他原料更換為聚甲醛時，除了加工溫度比聚甲醛低的物料或者與聚甲醛相近的物料，必須用聚乙烯清洗過渡； (6) 要經(jīng)常檢查溫度控制系統(tǒng)及各部的溫度。物料分解是有預(yù)兆的： ① 有強烈的甲醛剌激性氣味； ② 熔體有棕黃色條紋或制品有毛斑； ③ 熔體氣泡，并有"嘶嘶"聲而且冒煙。 </p><p style="text-indent:25px">聚甲醛簡介：聚甲醛（POM）又名縮醛樹脂、聚氧亞甲基，按分子鏈結(jié)構(gòu)的不同，分為均聚甲醛和共聚甲醛。聚甲醛是一種綜合性能優(yōu)良的熱塑性工程塑料，為五大工程塑料之一。聚甲醛質(zhì)輕，比強度、比剛度與金屬類似，是工程塑料中力學性能zui接近金屬材料的一種工程塑料，被稱為“塑料中的金屬”，也被譽為“超鋼”、“賽鋼”、“奪鋼”等。聚甲醛為線性結(jié)構(gòu)聚合物，分子結(jié)構(gòu)規(guī)整性高，機械性能十分優(yōu)異，具有良好的自潤滑性、耐疲勞性、抗蠕變性、吸水性小、耐磨性、耐腐蝕性等優(yōu)良性能，同時還有較好的耐化學品性、耐電弧性、著色性等。聚甲醛在很多場合是可替代黃銅、鋅、鋁和鋼等金屬制作的部件，普遍應(yīng)用于工業(yè)機械、汽車、電子電器、日用品、管道及配件、精密儀器和建材等領(lǐng)域。聚甲醛耐沖擊和降低模具沉積牌號，也有無機填充，增強牌號。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="進口POM哪家好,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387287966590273/3008050.png"></div><p style="text-indent:25px">簡介：縮醛樹脂是強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溶劑；但是它可以在某些溶劑中溶脹?？s醛樹脂對酸、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{f起聚合物降解，町以通過加入炭黑來降低這種降解。共聚物通常具有和均聚物類似的性質(zhì)，但均聚物的力學性能比共聚物稍高一些．其熔點也更高，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、紫外線光(UV)穩(wěn)定級材料?？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上買到。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。南京功能性POM價格</p><p style="text-indent:25px">聚甲醛繼聚酰胺之后又一種綜合性能優(yōu)良的工程塑料，具有高的力學性能。進口POM哪家好</p><p style="text-indent:25px">特點：POM強度高，質(zhì)輕，常用來代替銅、鋅、錫、鉛等有色金屬，普遍用于工業(yè)機械、汽車、電子電器、日用品、管道及配件、精密儀器和建材等部門。POM 被普遍用于制造各種滑動、轉(zhuǎn)動機械零件，做各種齒輪、杠桿、滑輪、鏈輪，特別適宜做軸承，熱水閥門、精密計量閥、輸送機的鏈環(huán)和輥子、流量計、汽車內(nèi)外部把手、曲柄等車窗轉(zhuǎn)動機械，油泵軸承座和葉輪燃氣開關(guān)閥、電子開關(guān)零件、緊固體、接線柱鏡面罩、電風扇零件、加熱板、儀表鈕；錄音錄像帶的軸承；各種管道和農(nóng)業(yè)噴灌系統(tǒng)以及閥門、噴頭、水龍頭、洗浴盆零件；開關(guān)鍵盤、按鈕、音像帶卷軸；溫控定時器；動力工具，庭園整理工具零件；另外可作為沖浪板、帆船及各種雪撬零件，手表微型齒輪、體育用設(shè)備的框架輔件和背包用各種環(huán)扣、緊固件、打火機、拉鏈、扣環(huán)；醫(yī)療器械中的心臟起博器；人造心臟瓣膜、頂椎、假肢等。進口POM哪家好</p><p style="text-indent:25px">蘇州晶塑米新材料有限公司位于陸家鎮(zhèn)陸豐東路3號仕泰隆模具城17-8號，交通便利，環(huán)境優(yōu)美，是一家貿(mào)易型企業(yè)。公司致力于為客戶提供安全、質(zhì)量有保證的良好產(chǎn)品及服務(wù)，是一家有限責任公司企業(yè)。公司擁有專業(yè)的技術(shù)團隊，具有PA66，PC，POM，PLA等多項業(yè)務(wù)。蘇州晶塑米自成立以來，一直堅持走正規(guī)化、專業(yè)化路線，得到了廣大客戶及社會各界的普遍認可與大力支持。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1983926.html</p></div></div></div></div></div><div id="tipwtfc" class="page-right twoColRt"><div id="2ol2qrd" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="xm2cjac" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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