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class="aiarticle"><p class="aiarticlep aip_0"><a href="http://www.freehugsandspanks.com">石英砂</a>　　但MH的阻燃作用大多是通過物理形式產(chǎn)生，如果加入的含量很高的話會抑制阻燃制品的力學(xué)性能所以，要從多角度來綜合分析添加的氫氧化鎂阻燃劑怎樣才能實現(xiàn)組合木的阻燃效果。。</p><p class="aiarticlep aip_1"><a href="http://www.freehugsandspanks.com">電信華為5G高頻高速覆銅板用球形硅微粉</a>第三代木材阻燃劑是指樹脂型阻燃劑，是根據(jù)不同的阻燃需求分別用脲醛樹脂、酚醛樹脂或三聚氰胺與無機阻燃劑如磷酸氫二銨、聚磷酸銨等復(fù)合而成與代無機阻燃劑、第二代無機和有機阻燃劑簡單機械混合得到的阻燃劑相比，第三代樹脂型阻燃劑對木材的物理和力學(xué)性能影響最小，吸濕性低，阻燃劑也不會析出。其具體處理方法是將木材放入高壓罐內(nèi)，先抽成真空，然后加壓將阻燃劑壓入木材內(nèi)部。木材被阻燃劑浸漬后，在干燥的過程中樹脂固化，對配方中易流失的無機阻燃劑產(chǎn)生包覆固著作用，從而改善阻燃劑的抗流失、遷移和吸濕性。木材阻燃劑今后將進一步朝著超細化、納米化、有機－無機復(fù)合、低毒、抑煙性發(fā)展。隨著房地產(chǎn)業(yè)快速發(fā)展、公共場所不斷增多，90%以上的木材制品被用于室內(nèi)裝修和家具制造。由于木材是火災(zāi)的主要引燃物之一，按照強制性國家標準GB20286-2006《公共場所用阻燃制品燃燒性能要求和標識》的規(guī)定，公共場所使用的木材制品必須符合相應(yīng)的阻燃標準等級，因此木材阻燃技術(shù)已備受關(guān)注。目前我國阻燃木材制品占木材制品的比例遠不到10%，而發(fā)達國家要占到15%～20%，我國木材阻燃劑的發(fā)展?jié)摿薮?。?/p><p class="aiarticlep aip_2"><a href="http://www.freehugsandspanks.com">高純超細硅微粉</a>另外，本品還具有抗滴漏的作用，能有效地改善燃燒時產(chǎn)生的高溫熔滴現(xiàn)象。</p><p class="aiarticlep aip_3"><a href="http://www.freehugsandspanks.com">硅酮膠用硅微粉</a>小編今天要跟大家分享一下木材阻燃劑的分類及如何施工運用木材阻燃劑是阻止木材被引燃及抑制火焰?zhèn)鞑サ闹鷦?。其分類方式有很多種，小編簡單為大家介紹常用的六種：（一）基本化學(xué)性質(zhì)（無機、有機等）（二）含有的阻燃元素或阻燃元素的組合（磷、氮、鹵素等）（三）材料中加入阻燃劑的方法（添加型、反應(yīng)型）（四）化合物類型（酸、堿、醚、酯、氧化物、氫氧化物、鹽等）（五）作用機理（物理作用或具有化學(xué)活性的阻燃劑、氣相作用或凝聚相作用阻燃劑）（六）阻燃作用的耐久性（耐光、熱、化學(xué)品和水等）木材阻燃劑的施工運用：1、施工前應(yīng)清理基材表面，其表面不得有油污、水跡、灰塵等。2、木材阻燃劑不得與其它助劑混合使用，不得加入其它成分后使用。3、施工前將料混合均勻，涂刷、輥涂、噴涂均可。4、阻燃劑可在5℃以上環(huán)境施工，施工環(huán)境溫度15～25℃。5、本產(chǎn)品僅限于室內(nèi)使用，主要適用于木材，如木板、五和板、纖維板等基材表面使用，也可用于非承重金屬表面，如通風(fēng)管道的防火處理。。</p><p class="aiarticlep aip_4"><a href="http://www.freehugsandspanks.com">工業(yè)漆汽車漆</a>毫無疑問，阻燃劑及阻燃材料的研究、生產(chǎn)和應(yīng)用是關(guān)系到“環(huán)境和人類”的重大舉措小編可以預(yù)言，在我國甚至在全球范圍內(nèi)，“阻燃”都面臨一個蓬勃發(fā)展的前景，并且將被愈來愈多的人所接受。。</p><p class="aiarticlep aip_5">3.立刻停止處理阻燃物從而改用低濃度阻燃劑繼續(xù)處理阻燃劑稀釋過度怎么辦？1.如果稀釋阻燃劑水比例差太遠，為了不影響阻燃效果建議更換阻燃劑。2.靜置處理。過度稀釋后的阻燃劑可靜置一段時間待阻燃劑溶質(zhì)沉淀出現(xiàn)分層，可將上面一部分水倒出，然后再攪拌使用。3.加長處理時間。過度稀釋后的阻燃劑在浸泡，噴涂阻燃物的時候處理時間比沒經(jīng)過過度稀釋的阻燃劑處理時間要長。。</p><p class="aiarticlep aip_6">　　三：木材阻燃劑和木材阻燃處理的技術(shù)發(fā)展　　最近幾年環(huán)保無鹵型的木材阻燃劑的問世和木材阻燃處理的更加簡便讓木制品在阻燃方面更加安全、方便、有效木材阻燃劑市場需求越來越大，離不開技術(shù)發(fā)展。在未來，隨著科技的發(fā)展，理想化的阻燃劑將會成為現(xiàn)實。。</p><p class="aiarticlep aip_7">木質(zhì)材料阻燃處理方法中的浸漬處理尤其是高壓浸漬法是目前生產(chǎn)中應(yīng)用廣的，也是阻燃效果好的一種方法。</p><p class="aiarticlep aip_8">1．木材阻燃劑本身無毒在生產(chǎn)和使用過程中不污染環(huán)境阻燃木材的熱解產(chǎn)物應(yīng)少煙、低毒、無刺激性和無腐蝕性；2.阻燃效力高既能阻止有焰燃燒又能抑制陰燃（無焰燃燒、紅熱燃燒），3．木材阻燃劑阻燃性能持久在使用過程中不發(fā)生熱、光分解不易水解和流失，　　4．吸濕性低阻燃木材的尺寸穩(wěn)定性好，　　5．木材的物理力學(xué)性能和工藝性能基本不受影響，　6．木材阻燃劑具有防腐朽、防蟲蛀性能如濰坊遠東橡塑81248120型木材阻燃劑7．木材的視覺、觸角和調(diào)節(jié)等環(huán)境學(xué)特性基本不受影響，8．阻燃劑成本低廉來源豐富易于使用。。</p><p class="aiarticlep aip_9">還可以改善塑料成型中的流動性能抑制燃燒后的殘余物，使產(chǎn)生的毒性氣體和腐蝕性氣體減少因此，有機磷阻燃劑近年來倍受青睞。有機磷阻燃劑包括磷（膦）酸酯、亞磷酸酯、有機磷鹽、氧化膦、含磷多元醇等，但應(yīng)用最多的則是磷（膦）酸酯及其齊聚物。聚磷酸銨，是當前我們應(yīng)用較多的一種高分子磷系阻燃劑，廣泛應(yīng)用于各種防火涂料之中。聚磷酸銨屬于膨脹型無鹵阻燃劑，燃燒煙霧少，一般不產(chǎn)生有毒氣體，加工時也不會腐蝕設(shè)備，而且由于膨脹作用制作的阻燃材料往往不燃燒時往往不產(chǎn)生滴落物，這個尤其對于聚烯烴類燃燒容易產(chǎn)生滴落物的樹脂非常適用。目前，市售的APP（包括高聚合度的）還沒有完全克服其容易吸潮、不耐高溫的缺點。就算對其進行改性制成膨脹型阻燃劑，即使應(yīng)用在聚烯烴等加工溫度比較低、工藝比較簡單的材料中，也會有材料的可回收和耐候性方面的問題。據(jù)報道，新近研制出的磷系無鹵阻燃PC／ABS合金、無鹵阻燃PA及無鹵阻燃PC，由于價格較高，并且存在著耐熱性較差、揮發(fā)性較大、相對分子質(zhì)量小、惡化塑料的熱變形溫度等缺點而無法全面推廣應(yīng)用。因此，開發(fā)磷含量高、相對分子質(zhì)量大、熱穩(wěn)定性好、低毒性、低生煙量的磷系化合物是有機磷系阻燃劑發(fā)展的一個趨勢。。</p></div> <script type="text/javascript" src="/ajax_asp/countview_hits.asp?menuid=3&id=2885"></script> </div> <div id="zllpz9rl" class="prevnext"> <span id="zllpz9rl" class="prevrecord">上一條: <a href="/suzhou/page3/v-3092.html" title="關(guān)于阻燃劑的使用很多人還有一些疑問,下面來解答幾個問題">關(guān)于阻燃劑的使用很多人還有一些疑問,下面來解答幾個問題</a> </span> <span id="zllpz9rl" class="nextrecord">下一條: <a href="/suzhou/page3/v-2589.html" 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