Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydrophobic silica aerogel heat-insulation composite material and preparation method thereof
The invention discloses a hydrophobic silica aerogel heat-insulation composite material and a preparation method thereof. The composite material consists of silica aerogel and an inorganic fiber product, wherein the silica aerogel is doped with a flame retardant and an infrared blocking agent. During preparation of sol, siloxane containing hydrophobic groups is introduced, and the content and the distribution state of the hydrophobic groups in a system are controlled by controlling the reactant content and reaction conditions, so that the composite material can pass the test of GB8624-2012 Classification for Burning Behavior of Building Materials and Products (A1-level). The preparation method of the composite material comprises steps as follows: (1) preparation of the silica sol; (2) preparation of composite gel; (3) solvent replacement; (4) drying. With the adoption of the method, the process is simple, the production cycle is short, the cost is lower, the equipment requirement is low, and the prepared silica aerogel composite material has the overall waterproof performance, the extremely low heat conductivity coefficient and the excellent high-temperature heat-insulation performance.
Hydrophobic silica aerogel heat-insulation composite material and preparation method thereof
The invention discloses a hydrophobic silica aerogel heat-insulation composite material and a preparation method thereof. The composite material consists of silica aerogel and an inorganic fiber product, wherein the silica aerogel is doped with a flame retardant and an infrared blocking agent. During preparation of sol, siloxane containing hydrophobic groups is introduced, and the content and the distribution state of the hydrophobic groups in a system are controlled by controlling the reactant content and reaction conditions, so that the composite material can pass the test of GB8624-2012 Classification for Burning Behavior of Building Materials and Products (A1-level). The preparation method of the composite material comprises steps as follows: (1) preparation of the silica sol; (2) preparation of composite gel; (3) solvent replacement; (4) drying. With the adoption of the method, the process is simple, the production cycle is short, the cost is lower, the equipment requirement is low, and the prepared silica aerogel composite material has the overall waterproof performance, the extremely low heat conductivity coefficient and the excellent high-temperature heat-insulation performance.
Hydrophobic silica aerogel heat-insulation composite material and preparation method thereof
YU SHENGJIN (Autor:in) / ZHANG RONGYAN (Autor:in) / SUN QIANQIAN (Autor:in) / OUYANG HONGWU (Autor:in) / LIU BING (Autor:in)
29.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Hydrophobic silica aerogel heat-insulation composite material
| Europäisches Patentamt | 2015
Preparation method of hydrophobic silica aerogel heat-insulation composite material
| Europäisches Patentamt | 2015
Aerogel heat insulation composite material and preparation method thereof
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2022
Hydrophobic silicon oxide aerogel insulation material and preparation method thereof
| Europäisches Patentamt | 2015