Gypsum-based self-humidity-control ceiling decoration material

Abstract

The invention relates to a gypsum-based self-humidity-control ceiling decoration material which comprises a water-soluble non-combustible ceramic protective layer, an organic-inorganic composite toughening layer and a flame-retardant thermal insulation layer, wherein the organic-inorganic composite toughening layer is flame-retardant thermal insulation polymer mortar and comprises the following components: a binding material S, ceramic beads, hydroxyethylmethylcellulose, redispersible emulsion powder, limestone flour and modified expansible graphite; and the flame-retardant thermal insulationlayer comprises the components of modified expandable polystyrene and modified expansible graphite. The flame-retardant thermal insulation board is mounted on the wall space in a manner of combining bonding and anchoring. The bonding performance of the flame-retardant decorative board prepared by the method disclosed by the invention meets the national standard requirement, and the base material is endowed with flame-retardant properties. Moreover, the mechanical property of the base material is not influenced, the formaldehyde release amount is on a level E1 or higher, and the material is safe and environmental-friendly. Meanwhile, the natural texture of wood is maintained, and the decorative effect is excellent.

Description

technical field [0001] The invention relates to a flame-retardant decorative board, in particular to a gypsum-based self-humidity-adjusting ceiling decoration material. Background technique [0002] At present, there are many researches on the fire-retardant treatment of wood and wood materials, but the existing methods for fire-retardant treatment of wood materials have various defects. For example, CN1911613A discloses a wood flame-retardant treatment process, which is to put wood into a sealed container, vacuum-treat the container including wood, and then input the fire-retardant liquid into the container in a vacuum state through a high-pressure pump. In the process, after the fire retardant solution reaches saturation in the wood, the wood is taken out and dried; the fire retardant solution contains ammonium sulfate, diammonium hydrogen phosphate, boric acid and borax. This method is a method of impregnating flame retardant under pressure. There are certain problems in...

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Problems solved by technology

This method is a method of impregnating flame retardant under pressure, and there are certain problems in this wood treatment method: (1) The flame retardant must be soluble in water and impregnated into the wood in liquid form, so the penetration of tree species (2) Most of the inorganic flame retardants cannot form chemical bonds with wood, and are prone to surface precipitation, which affects subsequent secondary processing; (3) The above-mentioned flame retardants have adverse effects on the physical and mechanical properties of wood, such as MOR (static bending strength), MOE (modulus of elasticity) decrease, and brittleness increase; (4) To achieve a higher flame retardant level, it is necessary to increase the (5) The treated wood must be dried for the second time, which is easy to cause secondary cracking and deformation of the wood, and increase the loss

If there is a lot of flame retardant remaining on the surface veneer, the product is prone to moisture absorption and frost return, and the subsequent secondary processing performance and paint performance are poor. Combustion effect, need to increase auxiliary treatment or increase application restrictions