Fine adjustment combined splicing type building decorative sheet and preparation method thereof

Abstract

The invention relates to a fine adjustment combined splicing type building decorative sheet. The fine adjustment combined splicing type building decorative sheet comprises a water-soluble non-ignitable ceramic protective layer, an organic-inorganic combined toughening layer and an inflaming retarding insulating layer. The organic-inorganic combined toughening layer is made of inflaming retarding insulating type polymer mortar, and components of the inflaming retarding insulating type polymer mortar include a binding material S, ceramic microbeads, hydroxyethyl methyl cellulose, redispersible emulsion powder, limestone powder and modified expansible graphite. Components of the inflaming retarding insulating layer include modified expandable polystyrene and modified expansible graphite. Theinflaming retarding insulating plate is installed on a wall in a binding and anchoring combined manner. The bonding performance of the inflaming retarding decorative sheet prepared through the methodcan meet national standard requirements, and flame retardant property is endowed to the base material; and moreover, the mechanical performance of the base material is not affected, the releasing amount of formaldehyde also reaches level E1 or above, and safety and environmental friendliness are achieved; and meanwhile, the natural texture of wood is also kept, and the decorative effect is good.

Description

technical field [0001] The invention relates to a flame-retardant decorative board, a preparation method thereof and a flame-retardant material comprising the flame-resistant decorative board. Background technique [0002] 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...

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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

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