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Microporous fire-resistant heat-insulating material and preparation method thereof
The invention belongs to the technical field of heat insulation materials, and discloses a microporous fire-resistant heat insulation material and a preparation method thereof. The microporous fire-resistant heat-insulating material comprises the following components in percentage by mass: 50-85% of fumed silica, 10-40% of an inorganic additive and 1-10% of inorganic fibers, the inorganic additive comprises zirconium silicate with the purity of 40%-58%, and the zirconium silicate accounts for 30%-70% of the mass of the inorganic additive; and the specific surface area of the fumed silica is 150-250 m < 2 >/g. The microporous fire-resistant thermal insulation material provided by the invention has excellent high temperature resistance and thermal insulation performance, the heat conductivity coefficient at 800 DEG C is less than 0.036/W/(m.K), and the heating permanent linear change at 960 DEG C/24h is less than 1.60%. The microporous fire-resistant heat-insulating material provided by the invention is not added with nano aluminum oxide, so that the cost can be reduced by 15% or above, and the market acceptability of the microporous fire-resistant heat-insulating material is high.
本发明属于绝热材料技术领域，公开了一种微孔耐火绝热材料及其制备方法。该微孔耐火绝热材料，按质量百分比计，包括以下组分：50％‑85％气相二氧化硅、10％‑40％无机添加剂和1％‑10％无机纤维；无机添加剂包括纯度为40％‑58％的硅酸锆，硅酸锆占无机添加剂的质量百分比为30％‑70％；气相二氧化硅的比表面积为150‑250m2/g。发明提供的微孔耐火绝热材料具有优异的耐高温和保温性能，800℃的导热系数小于0.036/W/(m·K)，960℃/24h的加热永久线变化小于1.60％。且本发明提供的微孔耐火绝热材料不添加纳米氧化铝，能够降低15％以上的成本，其市场接受度高。
Microporous fire-resistant heat-insulating material and preparation method thereof
The invention belongs to the technical field of heat insulation materials, and discloses a microporous fire-resistant heat insulation material and a preparation method thereof. The microporous fire-resistant heat-insulating material comprises the following components in percentage by mass: 50-85% of fumed silica, 10-40% of an inorganic additive and 1-10% of inorganic fibers, the inorganic additive comprises zirconium silicate with the purity of 40%-58%, and the zirconium silicate accounts for 30%-70% of the mass of the inorganic additive; and the specific surface area of the fumed silica is 150-250 m < 2 >/g. The microporous fire-resistant thermal insulation material provided by the invention has excellent high temperature resistance and thermal insulation performance, the heat conductivity coefficient at 800 DEG C is less than 0.036/W/(m.K), and the heating permanent linear change at 960 DEG C/24h is less than 1.60%. The microporous fire-resistant heat-insulating material provided by the invention is not added with nano aluminum oxide, so that the cost can be reduced by 15% or above, and the market acceptability of the microporous fire-resistant heat-insulating material is high.
本发明属于绝热材料技术领域，公开了一种微孔耐火绝热材料及其制备方法。该微孔耐火绝热材料，按质量百分比计，包括以下组分：50％‑85％气相二氧化硅、10％‑40％无机添加剂和1％‑10％无机纤维；无机添加剂包括纯度为40％‑58％的硅酸锆，硅酸锆占无机添加剂的质量百分比为30％‑70％；气相二氧化硅的比表面积为150‑250m2/g。发明提供的微孔耐火绝热材料具有优异的耐高温和保温性能，800℃的导热系数小于0.036/W/(m·K)，960℃/24h的加热永久线变化小于1.60％。且本发明提供的微孔耐火绝热材料不添加纳米氧化铝，能够降低15％以上的成本，其市场接受度高。
Microporous fire-resistant heat-insulating material and preparation method thereof
一种微孔耐火绝热材料及其制备方法
SHU LI (author) / LIU WENLIANG (author) / YU MINGXING (author)
2024-03-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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