A kind of preparation method of fiberboard

Abstract

The technical field of composite materials of the present invention discloses a preparation method of a fiberboard. The fiberboard uses camellia oleifera husk as the main raw material, removes impurities from the camellia oleifera husk, pre-cooks it at 90-95°C, and then heats it at 175-195°C to obtain the camellia oleifera husk fiber; mixes the camellia oleifera husk fiber with Wood fibers are mixed to obtain surface layer fibers and core layer fibers respectively, then add urea-formaldehyde adhesive, isocyanate adhesive and beeswax emulsion composite adhesive, and fully stir after sizing; after drying, layered paving forms the lower surface layer / core The layered pavement slab of the layer / upper surface layer is then hot-pressed to form the pavement slab. The invention utilizes bulk solid waste camellia oleifera husks to manufacture bulk industrial product fiberboards, which have good physical and mechanical properties. Compared with traditional wood raw materials, the raw materials are easy to obtain and the cost is zero, realizing the bulk resource utilization of waste camellia oleifera husks.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a fiberboard and its preparation method and application. Background technique [0002] Camellia oleifera is a unique woody edible oil tree species in my country, which is abundant in southern provinces such as Hunan, Jiangxi, Guangdong, Zhejiang, Guizhou and Yunnan. Camellia oil is rich in vitamin E, squalene, sterol and other active ingredients, and the unsaturated fatty acid content is as high as 90%. It is known as "Oriental olive oil" and "soft gold in oil". According to statistics, the existing Camellia oleifera cultivation area in the country is about 4 million hectares, with an annual output of about 5.6 million tons of Camellia oleifera fruit, and Camellia oleifera husk accounts for about 80% of the quality of Camellia oleifera fruit. Along with economic development and improvement of people's living standards, the camellia oleifera industry has e...

AI Technical Summary

Problems solved by technology

The fiberboard uses bulk solid waste as raw materials, and by compounding urea-formaldehyde adhesives, isocyanate adhesives and beeswax emulsion additives, it solves the problems of free formaldehyde release from urea-formaldehyde adhesives and insufficient initial viscosity of isocyanate adhesives. Technical Problems of Hygroscopic Thickness Expansion of Nutshell Fiberboard

In the method, the shell breaking of camellia oleifera husk and camellia seed separation device, vibrating screening, cooking, heat grinding, mixing and sizing, drying, layered paving and continuous hot pressing process are used to prepare fiberboards that can be used for decoration building materials and furniture. , to avoid the problem of recycling and pollution of the pretreatment solution in the prior art, and solve the problem that the surface of the particle board cannot be veneered due to large pores and low flatness