Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a film-coated vacuum insulated panel comprising at least one inner core, at least one outer film which encloses said core, an inner film which is positioned between the inner core and the outer film and from which said outer film is raised in at least some sections by a shell material, preferably on all sides, the inner and/or outer film being designed as an air-tight barrier film, and a) at least said inner film having at least one layer consisting of an ethylene vinyl alcohol copolymer, preferably metallised and particularly with a permeation value of 0.003 cm3/(m2*d) or lower, under standard conditions (23 DEG C, relative external air humidity of 50%), and b) the shell material comprising a drying agent which is present at a surface density of at least 100 g/m2 relative to the area of the vacuum insulated panel, and whose steam adsorption isotherm [theta][Eta]2O = [theta]H2O(PH2O) |T =23 DEG C at a temperature of T = 23 DEG C can be minimised, at least at low pressures pH2O below the saturation steam pressures pH2O, at T = 23 DEG C and at an atmospheric total pressure of p = patm: pH2O < PH2O, by a Langmuir curve [theta][Eta]2O,L_ according to the formula [theta]H2O =[theta]H2O(PH2O)|T=23 DEG C > [theta]H2O,L = KL * pH2O / [1 + KL * [Rho][Eta]2O], where pH2O is the steam partial pressure and [theta][Eta]2O = q/qmax is the proportion of steam absorption q = mH2O/mTM> relative to the maximum steam absorption capacity qmax = mH2O,max/mTM of the material at T = 23 DEG C, said Langmuir constant being KL = 102 bar-1 or greater, preferably KL = 103 bar-1 or greater, or particularly KL = 104 bar -1 or greater.
The invention relates to a film-coated vacuum insulated panel comprising at least one inner core, at least one outer film which encloses said core, an inner film which is positioned between the inner core and the outer film and from which said outer film is raised in at least some sections by a shell material, preferably on all sides, the inner and/or outer film being designed as an air-tight barrier film, and a) at least said inner film having at least one layer consisting of an ethylene vinyl alcohol copolymer, preferably metallised and particularly with a permeation value of 0.003 cm3/(m2*d) or lower, under standard conditions (23 DEG C, relative external air humidity of 50%), and b) the shell material comprising a drying agent which is present at a surface density of at least 100 g/m2 relative to the area of the vacuum insulated panel, and whose steam adsorption isotherm [theta][Eta]2O = [theta]H2O(PH2O) |T =23 DEG C at a temperature of T = 23 DEG C can be minimised, at least at low pressures pH2O below the saturation steam pressures pH2O, at T = 23 DEG C and at an atmospheric total pressure of p = patm: pH2O < PH2O, by a Langmuir curve [theta][Eta]2O,L_ according to the formula [theta]H2O =[theta]H2O(PH2O)|T=23 DEG C > [theta]H2O,L = KL * pH2O / [1 + KL * [Rho][Eta]2O], where pH2O is the steam partial pressure and [theta][Eta]2O = q/qmax is the proportion of steam absorption q = mH2O/mTM> relative to the maximum steam absorption capacity qmax = mH2O,max/mTM of the material at T = 23 DEG C, said Langmuir constant being KL = 102 bar-1 or greater, preferably KL = 103 bar-1 or greater, or particularly KL = 104 bar -1 or greater.
Film-coated vacuum insulated panel
CAPS ROLAND (Autor:in)
24.02.2016
Patent
Elektronische Ressource
Englisch