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href="http://www.cdcfah.com/cp/third-hcclzj_hcclzrj/">合成材料阻燃劑</a>?原料阻燃劑誠(chéng)信經(jīng)營(yíng) 濰坊明合化學(xué)供應(yīng)</p><div id="2esekaw" class="leftbox clearfix"><h1>原料阻燃劑誠(chéng)信經(jīng)營(yíng) 濰坊明合化學(xué)供應(yīng)</h1><div id="qi0qkkw" class="proBig"><div id="mgkoqm2" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/vproyi/637224740707041016/378177.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="mawiesc" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/vproyi/637224740707041016/378177.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="w2yyesc" 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>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>原料阻燃劑</p><p><span>***更新：</span>2020-06-01 08:15:38</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="ewc2iei" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">濰坊明合化學(xué)有限公司</a></p><p><span>聯(lián)系人：</span>王經(jīng)理</p><p><span>郵箱: </span>glchems@mhchemical.com</p><p><span>電話: </span>13365368383</p><p><span>傳真: </span>0536_5871677</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0536-5871677</p><p><span>地址: </span>山東省壽光市化龍鎮(zhèn)濰高路78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="2ugmwio" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="c2gg4ky" class="box"><p><p> 在非鹵素阻燃劑中紅磷是一種較好的阻燃劑，具有添加量少、阻燃效率高、低煙、低毒、用途大范圍等優(yōu)點(diǎn)；紅磷與氫氧化鋁、膨脹性石墨等無(wú)機(jī)阻燃劑復(fù)配使用，制成復(fù)合型磷/鎂；磷/鋁；磷/石墨等非鹵阻燃劑，可使用阻燃劑量大幅降低，從而改善塑料制品的加工性能和物理機(jī)械性能。但普通紅磷在空氣中易氧化、吸濕，容易引起粉塵，運(yùn)輸困難，與高分子材料相溶性差等缺點(diǎn)，應(yīng)用范圍受到了限制。為彌補(bǔ)這方面不足，可采用了微膠囊包覆工藝，使之成為微膠囊化紅磷，原料阻燃劑。微膠囊化紅磷除克服了紅磷固有的弊端外，并具有效率高，原料阻燃劑，低煙，在加工中不產(chǎn)生youdu氣體，其分散性、物理，原料阻燃劑、機(jī)械性能、熱穩(wěn)定性及阻燃性能均有提高和改善。阻燃劑應(yīng)用在泡沫塑料中應(yīng)具備什么條件?隨著硬質(zhì)聚氨酯泡沫塑料的應(yīng)用范圍逐漸擴(kuò)大，對(duì)泡沫塑料各項(xiàng)性能有更高的要求，其中阻燃劑是**為主要的問(wèn)題所在。硬質(zhì)聚氨酯泡沫塑料大范圍用于冰箱、冰柜的箱體絕熱層、冷庫(kù)、冷藏車等絕熱材料，建筑物、儲(chǔ)罐及管道保溫材料，其**根本的缺點(diǎn)就是易燃。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="原料阻燃劑" src="http://tyunfile.71360.com/UploadFile/vproyi/637224740707041016/378177.jpg"></div><p> 其分散性、物理、機(jī)械性能、熱穩(wěn)定性及阻燃性能均有提高和改善。[2]阻燃尼龍編輯聚酰胺俗稱尼龍（PA），是分子主鏈上含有重復(fù)酰胺基團(tuán)（－NHCO－）的熱塑性樹(shù)脂總稱。尼龍因具有良好的力學(xué)性能、電性能、耐熱性、韌性、耐油性、耐磨性、自潤(rùn)滑性、耐化學(xué)藥品性等優(yōu)良性能，大范圍的應(yīng)用于各個(gè)領(lǐng)域。[2]未經(jīng)改性的尼龍其阻燃性能較差，其垂直燃燒只能達(dá)到UL94V-2級(jí)，氧zhu為24左右，并且在燃燒過(guò)程中產(chǎn)生滴落，屬于易燃材料，在使用過(guò)程中極易引發(fā)火災(zāi)。尤其是在電子產(chǎn)品領(lǐng)域，因尼龍而引發(fā)的火災(zāi)不計(jì)其數(shù)，造成損失較大，因此，對(duì)尼龍的阻燃改性成為當(dāng)今學(xué)術(shù)界與工業(yè)界共同關(guān)注與攻關(guān)的課題。[2]尼龍中應(yīng)用較廣的無(wú)鹵阻燃劑是紅磷和三聚氰胺鹽類。紅磷具有很高的阻燃效率并能改善制品的抗電弧性，但其儲(chǔ)存及顏色方面的局限性**限制了其在尼龍中的應(yīng)用，一般只應(yīng)用于尼龍6中。另一種在尼龍中使用的無(wú)鹵阻燃劑是三聚氰胺鹽，主要是三聚氰胺尿酸鹽和磷酸鹽。它們具有較好的阻燃效率，但熱穩(wěn)定性較差，且由于易吸潮而使得制品在潮濕環(huán)境下電性能較差。[2]尼龍用無(wú)鹵阻燃劑：三聚氰胺尿酸鹽主要為MCMC為具有油膩感的白色結(jié)晶粉末，是一種性能優(yōu)良的氮無(wú)鹵阻燃劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="原料阻燃劑" src="http://tyunfile.71360.com/UploadFile/vproyi/637224740706875000/6101385.jpg"></div><p> 覆蓋作用 </p> <p> 在可燃材料中加入阻燃劑后，阻燃劑在高溫下能形成玻璃狀或穩(wěn)定泡沫覆蓋層，隔絕氧氣，具有隔熱、隔氧、阻止可燃?xì)怏w向外逸出的作用，從而達(dá)到阻燃目的。如有機(jī)磷類阻燃劑受熱時(shí)能產(chǎn)生結(jié)構(gòu)更趨穩(wěn)定的交聯(lián)狀固體物質(zhì)或碳化層。碳化層的形成一方面能阻止聚合物進(jìn)一步熱解，另一方面能阻止其內(nèi)部的熱分解產(chǎn)生物進(jìn)入氣相參與燃燒過(guò)程。 </p> <p> yizhi鏈反應(yīng) </p> <p> 根據(jù)燃燒的鏈反應(yīng)理論，維持燃燒所需的是自由基。阻燃劑可作用于氣相燃燒區(qū)，捕捉燃燒反應(yīng)中的自由基，從而阻止火焰的傳播，使燃燒區(qū)的火焰密度下降，**終使燃燒反應(yīng)速度下降直至終止。如含鹵阻燃劑，它的蒸發(fā)溫度和聚合物分解溫度相同或相近，當(dāng)聚合物受熱分解時(shí)，阻燃劑也同時(shí)揮發(fā)出來(lái)。此時(shí)含鹵阻燃劑與熱分解產(chǎn)物同時(shí)處于氣相燃燒區(qū)，鹵素便能夠捕捉燃燒反應(yīng)中的自由基，干擾燃燒的鏈反應(yīng)進(jìn)行。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="原料阻燃劑" src="http://tyunfile.71360.com/UpLoadFile/vproyi/2020/1/637143598792196492/6371435987921964929330411.jpg"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/106382.html</p></div></div></div></div></div><div id="uosgsg2" class="page-right twoColRt"><div id="akywkqo" class="box01 margin10 clearfix"><h3><a 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