Acid treatment process of core material and vacuum insulated panel of acid-treated core material

• Main Authors: WANG HAIJUAN, LIU ZHANZHAN, CHENG XUELI
• Format: Patent
• Language: Chinese; English
• Published: 03.01.2023
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; COMPOUNDS THEREOF; GLASS; INORGANIC CHEMISTRY; JOINING GLASS TO GLASS OR OTHER MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MINERAL OR SLAG WOOL; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TRANSPORTING

The invention provides an acid treatment process of a core material and a vacuum insulated panel for acid treatment of the core material. The acid treatment process comprises the following steps: adding a core material raw material into an acid solution; corroding pits on the surface of the core material raw material; and washing the corroded core material raw material with deionized water, and drying to obtain the core material unit. The vacuum heat insulation plate comprises a composite core material and a film coating layer, the composite core material is wrapped by the film coating layer, vacuum is formed between the film coating layer and the composite core material, the composite core material comprises a first core material and a second core material, the interior of the first core material is solid, the interior of the second core material is provided with a pit structure, and the first core material and the second core material are hollow. And the total thickness of the second core material is not gr