HEAT INSULATION STRUCTURE

• Main Authors: KUBO AYUKO, SUZUE RIO, WATANABE KEI, OSAWA OSAMU
• Format: Patent
• Language: English; Japanese
• Published: 26.09.2022
• Subjects: BLASTING; BRAIDING; COTTON-WOOL; ENGINEERING ELEMENTS AND UNITS; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; KNITTING; LACE-MAKING; LIGHTING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; NON-WOVEN FABRICS; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; TEXTILES; THERMAL INSULATION IN GENERAL; TRIMMINGS; WADDING; WEAPONS

To provide a heat insulation structure having excellent heat insulation performance and ventilation performance inherent to aerogel, not causing a powder fall and dust emission, and excellent in a drape property.SOLUTION: A heat insulation structure of this invention has a bag body which is formed of a ventilation sheet, and aerogel particulates which are filled in a closing space in the bag body. An average grain diameter of the aerogel particulates is within a range of 500 nm or more, and a ventilation degree of the ventilation sheet of the bag body is within a range of 0.1 cm3/(cm2.s) or more to 50 cm3/(cm2.s) or less, and a mass of the ventilation sheet per unit area is within a range of 0.1 g/m2 or more to 100 g/m2 or less.SELECTED DRAWING: Figure 1 【課題】本発明は、エアロゲル本来の優れた断熱性や通気性を有すると共に、粉落ちや発塵がなく、しかもドレープ性に優れる断熱構造体を提供することを目的とする。【解決手段】本発明の目的は、通気性シートを用いて形成された袋体と、前記袋体の内部の閉鎖空間に充填されたエアロゲル粉粒体とを有し、前記エアロゲル粉粒体は、平均粒径が５００ｎｍ以上の範囲であり、前記袋体は、前記通気性シートの通気度が０．１ｃｍ３／（ｃｍ２・ｓ）以上５０ｃｍ３／（ｃｍ２・ｓ）以下の範囲であり、前記通気性シートの単位面積当たりの質量が０．１ｇ／ｍ２以上１００ｇ／ｍ２以下の範囲である、断熱構造体によって達成された。【選択図】図１