Preparation method of integral-type vacuum heat insulation and temperature preservation plate

Abstract

The invention discloses a preparation method of an integral-type vacuum heat insulation and temperature preservation plate, and belongs to the technical field of an outer temperature preservation material for building outer walls. The technical scheme to be solved is that a preparation method of a vacuum heat insulation and temperature preservation plate which has a plate-type core material, has good integrity, is low in air leakage rate, and prevents cold and hot bridge is provided. According to the technical scheme, the preparation method comprises the following steps of: step one, manufacturing a core material plate; step two, loading the core material plate, and step three, vacuumizing and packaging. According to the invention, different from the prior art that the core material is in a powder shape, the plate provided by the invention has the advantages that an inorganic material is synthesized into the plate material, and a special bonding material is adopted for bonding the core material and the packaging layer together, thus the temperature preservation plate has the integrity; the core material plate is adopted and drilled for holding an air absorption agent, the quantity and position are distributed scientifically, and the long-lasting vacuum degree is ensured; and the air leakage rate is lowered by a dual-seal mode.

Description

technical field [0001] The invention relates to a method for preparing an integral vacuum heat insulation board, which belongs to the technical field of external heat insulation materials for building exterior walls. Background technique [0002] At present, the energy-saving material used for the interior and exterior walls of buildings - vacuum insulation panels, has a high air leakage rate, poor surface flatness, and short retention efficiency. After air leakage, the core material and the vacuum bag are separated to form "two skins", and the overlapping edges are easy. Problems such as hot and cold bridges occur. In the specific project application, the proportion of returning to the factory is large, the rate of completion repair is high, and the "shadow puppet wall" caused by the cold and hot bridge is obvious. The above technical defects and congenital deficiencies have seriously affected the progress and quality of the construction project as well as the heat preserva...

AI Technical Summary

Problems solved by technology

[0002] At present, the energy-saving material used for the interior and exterior walls of buildings - vacuum insulation panels, has a high air leakage rate, poor surface flatness, and short retention efficiency. After air leakage, the core material and the vacuum bag are separated to form "two skins", and the overlapping edges are easy. Problems such as hot and cold bridges

In the specific project application, the proportion of returning to the factory is large, the rate of completion and repair is high, and the "shadow puppet wall" caused by the cold and hot bridge is obvious. The above technical defects and congenital deficiencies have seriously affected the progress and quality of the construction project as well as the heat preservation and energy saving effect.