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clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<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>?上海高流動性POM 誠信為本蘇州晶塑米新材料供應(yīng)</p><div id="jtqn4xt" class="leftbox clearfix"><h1>上海高流動性POM 誠信為本蘇州晶塑米新材料供應(yīng)</h1><div id="8krti27" class="proBig"><div id="8btqugs" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288301697668/3489607.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="u8f3ogd" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288301697668/3489607.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="yyzgbyp" 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>上海高流動性POM,POM</p><p><span>***更新：</span>2020-11-20 02:21:31</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="ugd8yvd" 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號仕泰隆模具城17-8號</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="3nuwikw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="eoldamj" class="box"><p><p style="text-indent:25px">特點(diǎn)：均聚甲醛結(jié)晶度高，機(jī)械強(qiáng)度、剛性、熱變形溫度等比共聚甲醛好，共聚甲醛熔點(diǎn)低，熱穩(wěn)定性，耐化學(xué)腐蝕性，流動特性，加工性均優(yōu)于均聚甲醛，新開發(fā)的產(chǎn)品為超高流動（快速成型），耐沖擊和降低模具沉積牌號，也有無機(jī)填充，增強(qiáng)牌號。POM吸水率大于0.2%，成型前應(yīng)預(yù)干燥，POM熔融溫度與分解溫度相近，成型性較差，可進(jìn)行注塑、擠出、吹塑、滾塑、焊接、粘接、涂膜、印刷、電鍍、機(jī)加工、注塑是zui重要的加工方法，成型收縮率大，模具溫度宜高些，上海高流動性POM，或進(jìn)行退火處理，上海高流動性POM，或加入增強(qiáng)材料（如無堿玻璃纖維），上海高流動性POM。聚甲醛它的耐疲勞性、耐蠕變性、硬度和耐水性比尼龍更好。上海高流動性POM</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高流動性POM,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288301697668/3489607.png"></div><p style="text-indent:25px">功能化改性（方向和熱點(diǎn)）：提高摩擦磨損性能：在聚甲醛樹脂中加入有機(jī)油或硅油、聚四氟乙烯（PTFE）或二硫化鉬，可以達(dá)到降**品表面摩擦系數(shù)及磨損率的作用。潤滑聚甲醛zui適用于機(jī)械、電子電器用零件的傳動部位材料，如齒輪、滾輪、凸輪、連桿類制品。 ① 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。 ② 添加玻纖、碳纖等纖維狀材料。 ③ 添加硅油、礦物油、油脂等潤滑油及潤滑脂類。 ④ 添加MoS2 、石墨等無機(jī)粉類潤滑材料。 ⑤ 利用接枝、嵌段等手段在POM 分子鏈上引入具有潤滑性的鏈段。南京POM廠家聚甲醛耐反復(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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高流動性POM,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387287913533893/3861321.png"></div><p style="text-indent:25px">結(jié)構(gòu)：聚甲醛端基中含有半縮醛結(jié)構(gòu)。當(dāng)加熱至100℃左右時(shí)，可從其端基的半縮醛處逐漸解聚，因此其耐熱性較低。當(dāng)加熱到170℃左右時(shí)，可從分子鏈的任何一處發(fā)生自動氧化反應(yīng)而放出甲醛，甲醛在高溫有氧時(shí)會被氧化成為甲酸，甲酸對聚甲醛的降解反應(yīng)有自動加速催化作用，因此常在均聚甲醛樹脂中加人熱穩(wěn)定劑、抗氧化劑、甲醛吸收劑等，以滿足成形加工的需要。由于共聚甲醛分子鏈中含有一定量的C-C鍵，它可以阻止聚甲醛分子鏈的氧化降解，因而共聚甲醛比均聚甲醛的熱穩(wěn)定性能要好得多。但是無論是均聚甲醛還是共聚甲醛，在加工和應(yīng)用時(shí)應(yīng)充分重視其熱穩(wěn)定性和熱氧穩(wěn)定差的缺點(diǎn)。</p><p style="text-indent:25px">聚甲醛增強(qiáng)改性：在聚甲醛增強(qiáng)改性中常使用玻璃纖維、碳纖維、玻璃微珠、碳酸鈣、二氧化鈦、碳化硅、鈦酸鉀晶須等填料，以進(jìn)一步改變聚甲醛剛性、尺寸穩(wěn)定性、耐疲勞性、耐蠕變性和力學(xué)性能等。國際上，塞拉尼斯、杜邦、寶理等公司在聚甲醛的增強(qiáng)改性方面處于**地位。聚甲醛增韌改性：添加彈性體可以提高聚甲醛的韌性，聚甲醛與彈性體共混，如聚氨酯彈性體TPU、乙丙橡膠EPDM、順丁橡膠BR、丁苯橡膠SBR、丙烯酸酯、尼龍以提高聚甲醛的韌性。其他常見共混體系有聚甲醛/樹脂增韌、聚甲醛/無機(jī)剛性粒子增韌體系。聚甲醛的收縮率非常大，很容易使啤酒塑料“收縮”，因此必須通過延長保存時(shí)間來補(bǔ)償。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高流動性POM,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387287966590273/3008050.png"></div><p style="text-indent:25px">聚甲醛注射過程中應(yīng)注意哪些事項(xiàng)：物料過熱（超過240℃)或受熱時(shí)間過長，容易分解,產(chǎn)生相當(dāng)量的甲醛。部分甲醛將進(jìn)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(shí)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(shí)，除了加工溫度比聚甲醛低的物料或者與聚甲醛相近的。聚甲醛生產(chǎn)技術(shù)是以三聚甲醛與二氧五環(huán)（或環(huán)氧乙烷）為單體。銅基POM生產(chǎn)廠家</p><p style="text-indent:25px">聚甲醛發(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。上海高流動性POM</p><p style="text-indent:25px">聚甲醛耐磨改性：聚甲醛本身具有較好的自潤滑性、耐磨性和**度，但是作為滑動部件的普通聚甲醛材料，難以滿足精密機(jī)械、電子電器等動力傳導(dǎo)零部件高速、高壓、高溫、輕量化的要求，所以需要進(jìn)行自潤滑性、耐磨性能的改進(jìn)。耐磨改性主要以物理共混改性為主，耐磨共混改性根據(jù)共混原料的不同分為聚甲醛/耐磨聚合物體系、聚甲醛/潤滑油脂體系、聚甲醛/無機(jī)潤滑劑體系等?？商砑拥奈镔|(zhì)有硅油、聚四氟乙烯、二硫化鉬、超高分子量聚乙烯、石墨、炭黑、潤滑油、潤滑脂等。上海高流動性POM</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)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)。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造橡塑良好品牌。蘇州晶塑米立足于全國市場，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>文章來源地址: http://www.cdcfah.com/cp/2062185.html</p></div></div></div></div></div><div id="97pszl3" class="page-right twoColRt"><div id="fuw7heq" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dsz8m3a" 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="e32r8li" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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