Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nanoscale microporous thermal insulation material with ultralow thermal conductivity and low shrinkage and preparation method for nanoscale microporous thermal insulation material
The invention discloses a nanoscale microporous thermal insulation material with ultralow thermal conductivity and low shrinkage and a preparation method for the nanoscale microporous thermal insulation material. The thermal insulation material is prepared from the following raw materials in percentage by weight: 60%-70% of nanoscale silicon dioxide powder, 20%-30% of an infrared opacifier, 3%-5% of reinforced fiber and 5%-10% of a high-temperature antishrinking agent; the high-temperature antishrinking agent is added into the formula, so that the linear shrinkage of the nanoscale microporous thermal insulation material can be effectively improved; when the nanoscale microporous thermal insulation material is applied in a high-temperature condition, the using risks of equipment are reduced, and the safety coefficient of the equipment is improved; and a product produced according to the formula and the process has the maximum use temperature of 1050 DEG C, the heat conductivity coefficient lower than or equal to 0.04 at 800 DEG C (800D DEG Cx8h), the linear shrinkage lower than or equal to 1.0%, and the compression strength greater than or equal to 0.4 MPa. The nanoscale microporous thermal insulation material with ultralow thermal conductivity and low shrinkage prepared by the preparation method has small heat conductivity coefficient, high compression strength and small high-temperature shrinkage, and is suitable for industrial furnaces and high-temperature equipment in the petrochemical, metallurgical, electric fields and the like.
Nanoscale microporous thermal insulation material with ultralow thermal conductivity and low shrinkage and preparation method for nanoscale microporous thermal insulation material
The invention discloses a nanoscale microporous thermal insulation material with ultralow thermal conductivity and low shrinkage and a preparation method for the nanoscale microporous thermal insulation material. The thermal insulation material is prepared from the following raw materials in percentage by weight: 60%-70% of nanoscale silicon dioxide powder, 20%-30% of an infrared opacifier, 3%-5% of reinforced fiber and 5%-10% of a high-temperature antishrinking agent; the high-temperature antishrinking agent is added into the formula, so that the linear shrinkage of the nanoscale microporous thermal insulation material can be effectively improved; when the nanoscale microporous thermal insulation material is applied in a high-temperature condition, the using risks of equipment are reduced, and the safety coefficient of the equipment is improved; and a product produced according to the formula and the process has the maximum use temperature of 1050 DEG C, the heat conductivity coefficient lower than or equal to 0.04 at 800 DEG C (800D DEG Cx8h), the linear shrinkage lower than or equal to 1.0%, and the compression strength greater than or equal to 0.4 MPa. The nanoscale microporous thermal insulation material with ultralow thermal conductivity and low shrinkage prepared by the preparation method has small heat conductivity coefficient, high compression strength and small high-temperature shrinkage, and is suitable for industrial furnaces and high-temperature equipment in the petrochemical, metallurgical, electric fields and the like.
Nanoscale microporous thermal insulation material with ultralow thermal conductivity and low shrinkage and preparation method for nanoscale microporous thermal insulation material
SUN GUANGYING (Autor:in) / ZHAO RUILIN (Autor:in) / WANG HUAIXU (Autor:in) / QI HONGJUN (Autor:in) / QIAN GUANGHUA (Autor:in) / PENG QIANBING (Autor:in)
25.11.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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