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发明授权
CN101704632B 一种高强度低密度空心玻璃微珠的制备方法 失效 - 权利终止

一种高强度低密度空心玻璃微珠的制备方法
摘要：
本发明提供一种高强度低密度空心玻璃微珠及其制备方法，所述空心玻璃微珠化学组成为SiO2(70％～80％)，Na2O(8％～12％)，CaO(5％～9％)，B2O3(2％～6％)，SO3(0.02％～1.25％)，R2O(除Na2O外)0～5％，RO(除CaO外)0～5％，R2O3(B2O3外)0～5％，所得的空心玻璃微珠密度≤0.3g/cm3，抗压强度≥12MPa，粒径大小10~60μm，漂浮率≥95％。其作为减轻填料应用在石油化工、汽车船舶、航天航空等工业及军工领域，尤其是航天航空烧蚀材料、深海潜水设备材料等高强度低密要求领域。
摘要（英）：

The invention provides a high-strength low-density hollow glass bead and a preparation method thereof. The hollow glass bead comprises the following chemical compositions: SiO2 (70%-80%), Na2O (8%-12%), CaO (5%-9%), B2O3 (2%-6%), SO3 (0.02%-1.25%), R2O (0-5% excepting Na2O), RO (0-5% excepting CaO) and R2O3 (0-5% excepting B2O3); and the density of the obtained hollow glass bead is less than or equal to 0.3g/cm3, the compressive strength thereof is more than or equal to 12MPa, the size of particle diameter thereof is 10-60 mum, and the rate of floatage thereof is more than or equal to 95%. The high-strength low-density hollow glass bead is applied in the industries such as petrochemical industry, automobiles and ships, aerospace and the like and the military field as light-weight filler,especially in the fields with high-strength low-density requirements such as aerospace ablative materials and deep-sea diving equipment materials.

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