A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HEAT INSULATION MATERIAL AND MANUFACTURING METHOD THEREOF
To provide a heat insulation material having heat resistance under a high temperature and an excellent heat insulation property and having a high mechanical strength.SOLUTION: The present invention relates to a sintered body containing a porous heat insulation aggregate in 10 to 40 mass% consisting of a high heatproof composition whose heatproof temperature is 1200°C or higher and including pores whose pore diameter ranges from 500 to 1000 nm, preferably, containing a fireproof fiber in 10 to 30 mass% as a reinforcement material consisting of a high heatproof composition whose heatproof temperature is 1400°C or higher, containing an inorganic filler in 40-60 mass% consisting of metal oxide particles whose average particle diameter is 100 nm or less, and containing an infrared ray scattering material in 8 to 20 mass%. Pores whose pore diameter ranges from 100 to 2000 nm occupy 30% or more and 60% or less of volume of all the pores. Thus, heat conductivity at 1200°C is 0.12 W/(m K) or less, a flexure strength is 0.5 MPa or more and a heater wire shrinkage wire after heating at 1400°C for 24 hours is 4% or less.SELECTED DRAWING: None
【課題】高温下での耐熱性及び優れた断熱性を有し、高い機械的強度を有する断熱材を提供する。【解決手段】耐熱温度が１２００℃以上の高耐熱性の組成物からなり、孔径５００〜１０００ｎｍの細孔を有する多孔質の断熱骨材を１０〜４０質量％含有し、好適には１４００℃以上の高耐熱性の組成物からなる強化材としての耐火繊維を１０〜３０質量％含有し、平均粒径１００ｎｍ以下の金属酸化物粒子からなる無機フィラーを４０〜６０質量％含有し、及び赤外線散乱材を８〜２０質量％含有する焼結体であって、孔径１００〜２０００ｎｍの気孔が全気孔の容積の３０％以上６０％以下を占めている。これにより１２００℃における熱伝導率が０.１２Ｗ／（ｍ・Ｋ）以下であり、曲げ強さが０.５ＭＰａ以上、１４００℃で２４時間加熱したときの加熱線収縮率が４％以下である。【選択図】 なし
HEAT INSULATION MATERIAL AND MANUFACTURING METHOD THEREOF
To provide a heat insulation material having heat resistance under a high temperature and an excellent heat insulation property and having a high mechanical strength.SOLUTION: The present invention relates to a sintered body containing a porous heat insulation aggregate in 10 to 40 mass% consisting of a high heatproof composition whose heatproof temperature is 1200°C or higher and including pores whose pore diameter ranges from 500 to 1000 nm, preferably, containing a fireproof fiber in 10 to 30 mass% as a reinforcement material consisting of a high heatproof composition whose heatproof temperature is 1400°C or higher, containing an inorganic filler in 40-60 mass% consisting of metal oxide particles whose average particle diameter is 100 nm or less, and containing an infrared ray scattering material in 8 to 20 mass%. Pores whose pore diameter ranges from 100 to 2000 nm occupy 30% or more and 60% or less of volume of all the pores. Thus, heat conductivity at 1200°C is 0.12 W/(m K) or less, a flexure strength is 0.5 MPa or more and a heater wire shrinkage wire after heating at 1400°C for 24 hours is 4% or less.SELECTED DRAWING: None
【課題】高温下での耐熱性及び優れた断熱性を有し、高い機械的強度を有する断熱材を提供する。【解決手段】耐熱温度が１２００℃以上の高耐熱性の組成物からなり、孔径５００〜１０００ｎｍの細孔を有する多孔質の断熱骨材を１０〜４０質量％含有し、好適には１４００℃以上の高耐熱性の組成物からなる強化材としての耐火繊維を１０〜３０質量％含有し、平均粒径１００ｎｍ以下の金属酸化物粒子からなる無機フィラーを４０〜６０質量％含有し、及び赤外線散乱材を８〜２０質量％含有する焼結体であって、孔径１００〜２０００ｎｍの気孔が全気孔の容積の３０％以上６０％以下を占めている。これにより１２００℃における熱伝導率が０.１２Ｗ／（ｍ・Ｋ）以下であり、曲げ強さが０.５ＭＰａ以上、１４００℃で２４時間加熱したときの加熱線収縮率が４％以下である。【選択図】 なし
HEAT INSULATION MATERIAL AND MANUFACTURING METHOD THEREOF
断熱材及びその製造方法
SUEYOSHI ATSUSHI (author) / SHIONO HIROSHI (author)
2019-05-23
Patent
Electronic Resource
Japanese
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