Monolithische Form-stabilisierte Zusammensetzung mit einem Latentwärmespeicherstoff aufweisend sphärische Silikaporenstrukturen

• Main Authors: Marske, Felix, Himmelstein, Florian, Hahn, Thomas
• Format: Patent
• Language: German
• Published: 09.03.2023
• Subjects: ADHESIVES; BLASTING; CHEMISTRY; DYES; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MECHANICAL ENGINEERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES; WEAPONS

Die Erfindung betrifft eine Zusammensetzung aufweisend* mindestens einen Latentwärmespeicherstoff;* mindestens ein Tensid;* ein struktur-dirigierende Reagenz; und* stabilisiertes Sol; die dadurch gekennzeichnet ist, dass das stabilisierte Sol als Silikatstruktur vorliegt, die eine erste und eine zweite Porenart aufweist. Der mindestens eine Latentwärmespeicherstoff ist erfindungsgemäß in der ersten Porenart und der zweiten Porenart eingeschlossen. The invention relates to a process for producing a monolithic composition comprising a latent heat storage medium selected from esters, paraffins and mixtures thereof, at least one anionic surfactant, at least one structure-directing reagent and at least one stabilized sol. This involves producing a solution from the surfactant and the reagent in conjunction with water, guided by pressure and temperature, to which the latent heat storage medium is added and stirred to give an emulsion. This is stirred to give a mini- or macroemulsion with employment of reduced pressure and ultrasound. After addition of a stabilized sol, stirring of the mixture is continued, and reduced pressure is applied to produce a gel mixture. This is introduced into a vessel, where it is shaped by gelation and drying to give a monolithic composition. The invention also relates to the monolithic composition producible by the process and to a reactor design to execute the process.