玻璃棉板在空調工程中被廣泛使用的保溫材料

發(fā)布時(shí)間：2021-12-30 15:09:49 人氣：

由于玻璃棉材料吸水率大的缺點(diǎn)，在空調保溫施工過(guò)程中不但要作好成品的防水及防潮處理，而且須嚴把質(zhì)量關(guān)，以免保溫不當，導致系統局部產(chǎn)生冷凝水，由于易吸水的缺點(diǎn)將使整個(gè)系統的保溫棉受潮而報廢。在冷凍水管系統的保溫中，這種情況尤為嚴重，因此一般來(lái)說(shuō)保溫玻璃棉使用壽命較短。隨著(zhù)市場(chǎng)上低吸水率保溫材料品種的增多，空調冷凍水管系統采用玻璃棉保溫有逐漸被低吸水率材料取代的趨勢。但由于施工方便，現在空調工程的風(fēng)管保溫材料還是以玻璃棉為主，因此玻璃棉仍是目前空調工程中較為廣泛使用的一種保溫材料。

基于玻璃棉保溫材料良好的保溫綜合性能及抗化學(xué)性能，已被廣泛用于建筑、工業(yè)和空調的保溫、防火和消音等工程。在空調工程中主要用于風(fēng)管，冷凍水管和冷凝排水管的防熱傳遞損失及防結露保溫。由于其造價(jià)低廉，施工方便，目前國內空調系統保溫材料采用玻璃棉的比例約占60%以上。

玻璃棉制品是目前較常用的一種保溫材料，這種材料的主要性能有質(zhì)輕，導熱系數小為0.034 (w/mk)，耐高溫，是非燃材料，該材料的最高使用溫度可達300℃，不腐，抗老化，不溶于水和有機溶劑，耐空氣中CO2，SO2侵蝕等特點(diǎn)；但由于該材料吸水率大，因此防水性能較差，且玻璃棉吸水后保溫效果將大大下降，即使風(fēng)干后也不能恢復至原來(lái)的性能。因此在保溫要求嚴格的場(chǎng)合，已受潮或濕了水的玻璃棉不能再使用。

上一篇 : 玻璃棉板在建筑市場(chǎng)中的地位穩定下一篇 : 玻璃棉板在墻面施工時(shí)注意的事項

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