A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-expansion high-temperature-resistant aerogel thermal insulation material and preparation method thereof
The invention discloses a low-expansion high-temperature-resistant aerogel thermal insulation material, which is prepared from the following raw materials: aerogel powder, an infrared opacifying agent, low-expansion/negative-expansion material powder, a silane coupling agent and an organic binding agent, the aerogel powder comprises hydrophilic gas-phase silicon dioxide aerogel powder and gas-phase aluminum dioxide aerogel powder, the mass percentage content of the gas-phase silicon dioxide aerogel powder in the aerogel powder is 0 to 99 percent, and the mass percentage content of the gas-phase aluminum dioxide aerogel powder in the aerogel powder is 1 to 100 percent. The gas-phase aluminum dioxide aerogel powder and the low-expansion/negative-expansion material powder are added into the silicon dioxide aerogel thermal insulation material, so that the highest use temperature of the aerogel thermal insulation material is increased, and the thermal expansion coefficient of the aerogel thermal insulation material is controlled at a lower level; the thermal shock resistance of the low-expansion high-temperature-resistant aerogel thermal insulation material is improved, and the service life of the thermal insulation material is prolonged.
本发明公开一种低膨胀耐高温气凝胶隔热材料，其制备原料包括气凝胶粉体、红外遮光剂、低膨胀/负膨胀材料粉体、硅烷偶联剂和有机结合剂；所述气凝胶粉体包括亲水性气相二氧化硅气凝胶粉体和气相二氧化铝气凝胶粉体，且所述气相二氧化硅气凝胶粉体在所述气凝胶粉体中的质量百分含量为0～99％，所述气相二氧化铝气凝胶粉体在所述气凝胶粉体中的质量百分含量为1～100％。本发明通过在二氧化硅气凝胶隔热材料中加入气相二氧化铝气凝胶粉体和低膨胀/负膨胀材料粉末，不但提高了气凝胶隔热材料的最高使用温度，而且还把气凝胶隔热材料的热膨胀系数控制在较低的水平，提高了低膨胀耐高温气凝胶隔热材料耐热冲击性，延长了其使用寿命。
Low-expansion high-temperature-resistant aerogel thermal insulation material and preparation method thereof
The invention discloses a low-expansion high-temperature-resistant aerogel thermal insulation material, which is prepared from the following raw materials: aerogel powder, an infrared opacifying agent, low-expansion/negative-expansion material powder, a silane coupling agent and an organic binding agent, the aerogel powder comprises hydrophilic gas-phase silicon dioxide aerogel powder and gas-phase aluminum dioxide aerogel powder, the mass percentage content of the gas-phase silicon dioxide aerogel powder in the aerogel powder is 0 to 99 percent, and the mass percentage content of the gas-phase aluminum dioxide aerogel powder in the aerogel powder is 1 to 100 percent. The gas-phase aluminum dioxide aerogel powder and the low-expansion/negative-expansion material powder are added into the silicon dioxide aerogel thermal insulation material, so that the highest use temperature of the aerogel thermal insulation material is increased, and the thermal expansion coefficient of the aerogel thermal insulation material is controlled at a lower level; the thermal shock resistance of the low-expansion high-temperature-resistant aerogel thermal insulation material is improved, and the service life of the thermal insulation material is prolonged.
本发明公开一种低膨胀耐高温气凝胶隔热材料，其制备原料包括气凝胶粉体、红外遮光剂、低膨胀/负膨胀材料粉体、硅烷偶联剂和有机结合剂；所述气凝胶粉体包括亲水性气相二氧化硅气凝胶粉体和气相二氧化铝气凝胶粉体，且所述气相二氧化硅气凝胶粉体在所述气凝胶粉体中的质量百分含量为0～99％，所述气相二氧化铝气凝胶粉体在所述气凝胶粉体中的质量百分含量为1～100％。本发明通过在二氧化硅气凝胶隔热材料中加入气相二氧化铝气凝胶粉体和低膨胀/负膨胀材料粉末，不但提高了气凝胶隔热材料的最高使用温度，而且还把气凝胶隔热材料的热膨胀系数控制在较低的水平，提高了低膨胀耐高温气凝胶隔热材料耐热冲击性，延长了其使用寿命。
Low-expansion high-temperature-resistant aerogel thermal insulation material and preparation method thereof
一种低膨胀耐高温气凝胶隔热材料及其制备方法
YAO RUNZHAN (author)
2022-05-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
| European Patent Office | 2024
Preparation method of high-temperature-resistant aerogel thermal insulation layer material
| European Patent Office | 2023
SiC aerogel high-temperature thermal insulation material and preparation method thereof
| European Patent Office | 2022
| European Patent Office | 2024