Polyvinyl chloride synthetic wood imitating material and preparing method thereof

Abstract

The invention provides a polyvinyl chloride synthetic wood imitating material and a preparing method thereof. The polyvinyl chloride synthetic wood imitating material comprises a panel assembly and aninflaming retarding gluing agent layer, wherein the inflaming retarding gluing agent layer is at least attached to the surface of at least one side in the thickness direction of the panel assembly and is formed by a gluing agent containing an inflaming retarding gluing agent. The panel assembly at least comprises a layer of wood veneer. The inflaming retarding gluing agent contains water-solubleamino resin, a dehydrated catalyst, a carbon forming agent and an assistant agent and contains or does not contain water. The dehydrated catalyst is selected from one or more of ammonium polyphosphate, melamine orthophosphate and melamine pyrophosphate. The polymerization degree of the ammonium polyphosphate is 20 or above. The invention further provides an inflaming retarding material. The gluingperformance of the polyvinyl chloride synthetic wood imitating material prepared through the method meets the national standard requirement, and a base material is endowed with the inflaming retarding performance. In addition, the mechanical performance of the base material is not influenced, formaldehyde emission reaches the E1 level or above, and safety and environment friendliness are achieved; and meanwhile, the nature texture of the wood is kept, and the decoration effect is good.

Description

technical field [0001] The invention relates to a polyvinyl chloride synthetic imitation wood material, a preparation method thereof and a flame-retardant material comprising the polyvinyl chloride synthetic imitation wood 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 impregnati...

AI Technical Summary

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

This flame retardant treatment method has brought many adverse effects, such as complex treatment process, reducing the physical and mechanical properties of the material, adversely affecting the curing performance of the adhesive, affecting the subsequent secondary processing performance, and increasing energy consumption due to repeated drying, etc.