STP ultra-thin vacuum heat insulation plate for building external wall and preparation method thereof

Abstract

The invention discloses an STP ultra-thin vacuum heat insulation plate for a building external wall, which comprises a composite inorganic fiber core material, a heat insulation coating and a high-barrier composite film; the heat insulation coating coats on the outer surface of the composite inorganic fiber core material, the composite inorganic fiber core material is arranged in the high-barriercomposite film, the composite inorganic fiber core material is provided with a honeycomb-shaped through hole, the honeycomb-shaped through hole is filled with glass-shaped micro-beads, the honeycomb-shaped through hole is an inclined hole, and the inclination angle is 30-45 degrees. The invention also discloses a preparation method of the STP ultra-thin vacuum heat insulation plate for the building external wall. According to the invention, the heat insulation coating coats on the core material of the STP ultra-thin vacuum heat insulation plate, so that the plate has super-strong heat insulation effect, meanwhile, the honeycomb-shaped inclined through hole is arranged on the heat insulation plate, which ensures the stable foundation of the heat insulation plate, and the air flow is resisted, so that the air is not easy to form convection, and the possibility of convective heat transfer is reduced, and the heat preservation effect of the heat insulation plate is ensured.

Description

technical field [0001] The invention relates to the technical field of thermal insulation panels, in particular to a STP ultra-thin vacuum insulation panel for building exterior walls and a preparation method thereof. Background technique [0002] Building energy conservation is one of the main tasks of implementing the national environmental protection and energy conservation policies. In buildings, the heat loss of the outer envelope structure is relatively large, and the wall accounts for a large proportion of the outer envelope structure. Therefore, the outer envelope structure The advancement of wall insulation technology has become an important basic technology in the field of building energy conservation. At present, the standard of 65% energy saving is generally implemented in residential buildings and public buildings in our country. Areas such as Beijing, Tianjin, Hebei, and Shandong have begun to implement the 75% energy-saving standard in residential buildings. ...

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Problems solved by technology

[0003] Existing external wall thermal insulation systems use traditional thermal insulation materials. The thickness of the thermal insulation layer increases the weight of the wall, or the shared area is large. Although the thermal insulation effect is good, the waste of resources is serious and the construction process is complicated.

At the same time, the existing insulation boards are usually perforated so that the insulation board has both sound-absorbing effects. However, although the perforated insulation board has a certain sound-absorbing effect, it will form air convection, which makes convective heat transfer and reduces Insulation effect

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