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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>?蘇州功能性POM價格值得信賴蘇州晶塑米新材料供應(yīng)</p><div id="omagmsa" class="leftbox clearfix"><h1>蘇州功能性POM價格值得信賴蘇州晶塑米新材料供應(yīng)</h1><div id="sq0sw2u" class="proBig"><div id="e2wkaom" 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="eka44go" 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="a2aiomk" 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>蘇州功能性POM價格,POM</p><p><span>***更新：</span>2020-11-27 05:21:25</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="gecayek" 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="sqgecio" class="page-proshow02"><p class="title">詳細說明</p><div id="2mkaguk" class="box"><p><p style="text-indent:25px">聚甲醛pom有毒嗎：POM無毒，但是加工方法不當就會產(chǎn)生毒氣。在加工時，蘇州功能性POM價格，POM會釋放一種刺激性難聞氣體，但對人體的危害是不大的，產(chǎn)品做出來后的POM制品（聚甲醛）常溫下裂解是相當緩慢的但是如果在特殊條件下，比如說高溫，或者裂解催化劑存在的條件下會進行的很快，聚甲醛（POM）在注塑生產(chǎn)過程中會有少量的甲醛氣體產(chǎn)生，在正常的生產(chǎn)條件下，不會產(chǎn)生嚴重的問題。但是聚甲醛在高溫220攝氏度下就會發(fā)生熱降解，尤其是在長時間處于高溫下時，容易產(chǎn)生大量的甲醛氣體。這種氣體是刺激性的，對眼部和咽喉都有傷害。吸入過多會有暈眩惡心感，蘇州功能性POM價格。POM熱分解時會揮發(fā)出有毒氣體，蘇州功能性POM價格，對人體產(chǎn)生危害。但是，這與加工成型工藝有很大關(guān)系。加工工藝好和工作環(huán)境好的工廠，是不會出現(xiàn)安全問題的，放心工作好了。聚甲醛吸水性小，尺寸穩(wěn)定，有光澤，這些性能都比尼龍好，聚甲醛為高度結(jié)晶的樹脂。蘇州功能性POM價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州功能性POM價格,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288163318668/8954645.png"></div><p style="text-indent:25px">特點：POM為乳白色不透明結(jié)晶性線性熱塑性樹脂，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，比強度和比剛性接近于金屬；拉伸強度，彎曲強度，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)：除了強酸、酚類和有機鹵化物外，對其他化學(xué)品穩(wěn)定，耐油；機械性能受溫度影響小，具有較高的熱變形溫度。缺點是阻燃性較差，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。無錫食品級POM哪家好聚甲醛是強而硬且有良好疲勞性和熱穩(wěn)定性的熱塑(性)塑料。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州功能性POM價格,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387288040623353/6169138.png"></div><p style="text-indent:25px">基本性能：POM分為兩大類，一類為均聚甲醛，以杜邦和旭化成為表示，另一類為共聚甲醛，除了上述兩家，其他供應(yīng)商的產(chǎn)品基本都為共聚，旭化成是個NB的公司，均聚和共聚都生產(chǎn)。這里簡單介紹一下均聚和共聚的特點，以便更準確的選擇材料。耐熱性能：耐熱性能≠熔點，而是POM長期在高溫環(huán)境下工作的能力。由于均聚甲醛分子鏈中基本都是-C-O-鍵，鍵能大約為20~40 kcal/mol，而共聚甲醛中增加了一些-C-C-O-鍵，鍵能大約是60~80 kcal/mol，因此需要共聚甲醛分解所需的能量更高，so，共聚甲醛的長期熱穩(wěn)定性更好。熱穩(wěn)定性能影響的不僅是產(chǎn)品的工作環(huán)境，同時對于現(xiàn)在汽車產(chǎn)業(yè)的VOC及氣味管控也有著很大的影響，均聚甲醛注塑的時候氣味大，而對于POM而言，氣味一般就表示甲醛釋放量大，這酸爽，聞過的都知道。</p><p style="text-indent:25px">注塑影響條件料筒溫度：因為聚甲醛（POM塑膠原料）是結(jié)晶性塑料，熔料在料筒內(nèi)停留時間對于它的含晶核數(shù)量與大小均會產(chǎn)生影響，在其熔點以上的同一溫度下，熔體停留時間越長，晶核數(shù)會下降。料筒溫度通常應(yīng)控制在150～180℃，溫度不宜過高，太高會導(dǎo)致變色分解，過低則會塑化不均，影響流動性。所以在確保流動性的前提下，盡量采用較低的加工溫度和較短的受熱時間。另外噴嘴溫度應(yīng)略低于料筒溫度。模具溫度：通常模具是影響聚甲醛（POM）強度的主要因素，模溫高，結(jié)晶時間長，有利于晶體的生長，結(jié)晶較完整，并且流動性會更好。一般情況下，模溫應(yīng)控制在75～120℃。注射壓力：注射壓力的大小主要取決于聚甲醛（POM）的熔融流動性，流道、澆口的厚度和寬度，以及塑料制品的厚度等因素。通常為40～130Mpa，對于厚壁制品，注射壓力可取小值，反之薄壁制品則應(yīng)取大值。聚甲醛盡量采用低的料筒溫度和噴嘴溫度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州功能性POM價格,POM" src="https://tyunfile.71360.com/UploadFile/szjingsumi/637387287940535671/468471.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。聚甲醛添加硅油、礦物油、油脂等潤滑油及潤滑脂類。日本旭化成POM7010</p><p style="text-indent:25px">聚甲醛材料的熱穩(wěn)定性相對來講是很差的，它在加熱時受其溫度的影響容易分解。蘇州功能性POM價格</p><p style="text-indent:25px">聚甲醛(POM)注塑工藝要點：1.滯留時間：如設(shè)備沒有熔膠滯留點，則POM-H 可在215℃滯留35分鐘;POM-K 可在205℃滯留20分鐘不會有嚴重的分解。在注塑溫度下熔體不能在機筒內(nèi)滯留超過20分鐘。POM-K在240℃下可滯留7分鐘。如果停機，機筒溫度可降到150℃，如要長期停機就必須清理機筒子，關(guān)閉加熱器。 2.停機：清理機筒必須用PE或PP，關(guān)閉電熱，把螺桿推在前位。料筒和螺桿必須保持清潔。雜質(zhì)或污垢會改變POM的過熱穩(wěn)定性(尤其是POM-H)。所以當用完含鹵聚合物或其它酸性聚合物后，應(yīng)用PE清理干凈后才能打POM料。若作用不當?shù)念伭?、潤滑劑或含GF尼龍的物料，會導(dǎo)致塑料降質(zhì)。 3.后處理：對于非常溫使用的制件且質(zhì)量要求較高，須進行熱處理。退火處理效果，可將制品放入濃度為30%的鹽酸溶液中浸30分鐘檢查，然后用肉眼觀察判斷是否有殘余應(yīng)力的裂紋產(chǎn)生。蘇州功能性POM價格</p><p style="text-indent:25px">蘇州晶塑米新材料有限公司是一家經(jīng)營范圍如下：通用塑膠原料：ABS、PMMA、SAN（AS）、PP等。工程塑膠原料：PC、PC/ABS、PPO、PPE、POM、PA6、PA66、PA46、PA9T、PA6T、PA12、PA11、PBT、PET、ASA等。特種工程塑膠原料：PPS、LCP、PEI、PPA等。熱塑性彈性體：TPU、K膠、EVA、POE；TPR、TPE、SBS、SEBS、TPEE、TPV適用于運動器材、玩具、手柄、汽車方向盤、電動工具握把、箱包、日用工具手把、牙刷、密封圈等行業(yè)。的公司，致力于發(fā)展為創(chuàng)新務(wù)實、誠實可信的企業(yè)。蘇州晶塑米深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的PA66，PC，POM，PLA。蘇州晶塑米不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務(wù)。蘇州晶塑米始終關(guān)注橡塑行業(yè)。滿足市場需求，提高產(chǎn)品價值，是我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2162744.html</p></div></div></div></div></div><div id="iwmca2i" class="page-right twoColRt"><div id="g4agwee" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="4ywcao2" 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" 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