漂珠批發(fā) 寧波耐火發(fā)熱冒口漂珠 鑄造冒口漂珠30-200目細(xì)漂珠現(xiàn)貨 低密度輕質(zhì)耐火漂珠 【漂珠介紹】

漂珠是一種能浮于水面的粉煤灰空心球，呈灰白色，壁薄中空，顆粒細(xì)、重量輕，高強(qiáng)耐磨、表面封閉而光滑，熱導(dǎo)率小，耐火度高、保溫絕緣、應(yīng)力應(yīng)變均勻等多種功能，廣泛用于耐火、保溫材料的生產(chǎn)和在塑料、涂料、油漆油墨、陶瓷、封裝材料、地板膠、石油鉆探等領(lǐng)域作增強(qiáng)性填充料。能既有效地改善產(chǎn)品性能或施工效果，又明顯地降低生產(chǎn)成本，現(xiàn)已廣泛應(yīng)用于耐火材料的原料之中。

【漂珠特性】

1、高耐火度：漂珠的主要化學(xué)成分為硅、鋁的氧化物，其中二氧化硅（SiO2)約為50-65%，三氧化二鋁(Al2O3)約為25-35%。因?yàn)槎趸瑁⊿iO2)的溶點(diǎn)高達(dá)1725攝氏度，三氧化二鋁(Al2O3)的溶點(diǎn)為2050攝氏度，均為高耐火物質(zhì)。因此，漂珠具有的耐火度，一般達(dá)1600-1700攝氏度，使其成為的耐火材料。
their shortcomings is drift beads, so drift beads have more competitive advantages, used more widely.
4, excellent electrical insulation, non-conductive: choose after degaussing beads drift beads, is the performance of insulation materials, conductive.Insulation resistance are commonly by the rise of temperature, drift beads, on the other hand, increases with the increase of temperature resistance.This advantage is don't have other insulating materials.So, it can make is performance under the condition of high temperature insulation products.
5, particle size, specific surface area: drift beads natural formation of the particle size of 1-250 microns.Specific surface area of 300-360 - g/cm2, and cement.Therefore, drift beads without grinding, can be used directly.Fineness can meet the needs of a variety of products, other
3、硬度大、強(qiáng)度高：由于漂珠是以硅鋁氧化物礦物相(石英和莫來石)形成的堅(jiān)硬玻璃體，硬度可達(dá)莫氏6-7級，靜壓強(qiáng)度高達(dá)70-140MPa，真密度2.10-2.20g/cm3，因此，漂珠具有很高的強(qiáng)度。一般輕質(zhì)多孔或中空材料如珍珠巖、沸巖、硅藻土、海浮石、膨脹蛭石等均是硬度差、強(qiáng)度差，用其制的保溫隔熱制品或輕質(zhì)耐火制品，都有強(qiáng)度差的缺點(diǎn)。他們的短處恰恰是漂珠的長處，所以漂珠就更有競爭優(yōu)勢，用途更廣。corrosion paint, floor paint, high temperature resistant fire retardant paint, exterior paint, insulation paint, floor paint, auto putty, putty, etc.
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