Bamboo-wood fiber flame-retardant composite decorative plate and preparation method thereof

Abstract

The invention discloses a bamboo-wood fiber flame-retardant composite decorative plate and a preparation method thereof. The composite decorative plate comprises a middle foaming flame-retardant plate and bamboo-wood fiber flame-retardant plates arranged on the upper surface and the lower surface of the middle foaming flame-retardant plate. The middle foaming flame-retardant plate comprises by weight: 50-70% of PVC resin, 10-15% of a foaming agent, 3-8% of a foaming regulator, 2-4% of a stabilizer, 5-10% of filler and 3-5% of flame retardant. The bamboo-wood fiber flame-retardant plate comprises by weight: 15%-30% of PVC resin, 20%-40% of bamboo-wood fiber powder, 30%-45% of calcium powder, 5%-10% of flame retardant and 1%-3% of mineral pigment. The middle foaming flame-retardant plate has the functions of sound absorption, noise reduction, heat preservation and heat insulation, meanwhile, the rigidity of the decorative plate is reduced, and therefore the situation that the plate is warped and deformed due to the fact that expansion force difference is generated after moisture absorption is avoided. The bamboo-wood fiber flame-retardant plate has the advantages that the raw materials are green and environment-friendly, the flame-retardant function is realized, meanwhile, the product is light and thin, the transfer from low-value products to high-value products is realized, and the maintenance cost is extremely low.

Description

technical field [0001] The invention belongs to the technical field of plate processing, and in particular relates to a flame-retardant composite decorative plate of bamboo and wood fiber and a preparation method thereof. Background technique [0002] With the rapid development of my country's fiberboard industry and the implementation of major ecological projects such as national natural forest protection, my country's timber resources are in short supply, and the contradiction between supply and demand has intensified. It is imminent to find a resource that can replace timber. my country is rich in bamboo resources, and the development of industrial utilization of bamboo plants, replacing wood with bamboo will be an effective way to alleviate the shortage of forest resources and improve the economic benefits of plant utilization. At this stage, the technology of making fiberboard with pure bamboo alone is not yet mature, and part of bamboo can be used instead of wood to pr...

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Problems solved by technology

[0004] At present, the disadvantage of the existing bamboo and wood fiber decorative boards is that they do not have flame retardant function. Once a fire occurs, the bamboo and wood fiber boards are conducive to the spread of the fire, increasing the difficulty of fire extinguishing, and causing the board to warp and deform due to the difference in expansion force after moisture absorption; higher

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