Laminate, preparation method for laminate and application of laminate

Abstract

The invention belongs to the technical field of materials, and relates to a laminate and a preparation method thereof. The laminate comprises a surface layer, a core layer, a middle core layer, a core layer and a surface layer, wherein the surface layers, the core layers and a bottom layer are connected with each other through bonding media. The laminate disclosed by the invention is a composite container soleplate of which all performance indexes, such as density, strength, elasticity modulus and surface quality, respectively meet the industrial standard of an international container. When the laminate is used as the container soleplate, the thickness and the density of the surface layers and core materials can be reasonably selected according to the actual demand so as to achieve the best economic effect. Compared with a hardwood soleplate, the composite soleplate disclosed by the invention is greatly prolonged in service life, and has the advantages that the abrasive resistance and corrosion resistance are very good, water is not absorbed, cleaning is easy, and the like. Moreover, a process of bottom surface lacquering is not needed, so that the environmental protection is benefited. Moreover, the composite plate has the advantages that corrosion cannot occur, bacteria cannot breed, and damage caused by worms cannot occur.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to a laminated board and its preparation method and application. Background technique [0002] The container bottom plate is the main load-bearing structure of the container. The container manufacturing industry requires the bottom plate to have excellent mechanical properties, precise processing dimensions, good impact resistance and corrosion resistance. For a long time, the container floor mainly uses high-density hard broad-leaved wood grown in tropical rain forests as the main raw material. After being cut into veneers by large-diameter logs, multi-layer veneers are formed into embryos and hot-pressed into plywood. Since the growth cycle of high-density broad-leaved tree species is very long, it generally takes 50 years or even longer, and the demand for container floor is increasing day by day. In order to protect the world's ecological environment and reduce the consumption ...

AI Technical Summary

Problems solved by technology

The process and structure of the container floor basically maintain the characteristics of the original container floor, but the consumption of wood is still very large

[0007] In the method of Chinese patent CN 93115652.0, the bamboo is cut into strips of equal width and thickness, and the strips are arranged in parallel to form sheets, put into a mixture of preservatives and phenolic resin and then laminated and pressed. The resulting bamboo container floor can Passed the test requirements of international containers, but the utilization rate of bamboo is low, the manufacturing is complicated, and the processing efficiency is low, resulting in high cost of bamboo container floor, limited production capacity, and cannot be used in large-scale marketization

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