Light rigid plate and manufacturing method thereof

Abstract

The invention relates to a light rigid plate and a manufacturing method thereof, and belongs to the technical field of composite materials and novel chemical building materials. The light rigid plateis composed of a core layer, a middle layer and an outer shell layer, wherein the middle layer is located between the core layer and the outer shell layer, the core layer, the middle layer and the outer shell layer are independently extruded by three extruders to form a core layer material flow, a middle layer material flow and an outer shell layer material flow respectively, the core layer material flow, the middle layer material flow and the outer shell layer material flow converge in a die to form a mixed material flow, and the mixed material flow is extruded in the die to obtain the lightrigid plate. According to the invention, the light rigid plate is convenient to produce and manufacture, high in production continuity, high in production efficiency, light in weight, high in rigidity, high in strength, not prone to deformation, resistant to flame, water and corrosion, resistant to worm damage, free of cracking and aging, free of color difference, free of paint falling in the using process, free of moisture absorption and moisture regaining and the like.

Description

technical field [0001] The invention relates to a lightweight rigid board and a manufacturing method thereof, belonging to the technical field of composite materials and new chemical building materials. Background technique [0002] Boards are used in many occasions and can be processed into various decoration materials, wall materials, support materials, etc. The commonly used board materials on the market mainly include wood, shavings, metal, plastic, stone, gypsum, etc. The boards of these materials have their own advantages, but there are also some obvious shortcomings. For example, wooden boards are light in weight, easy to process, easy to install, and comfortable to the touch, etc. Cracking, non-flame retardant, etc.; particleboard is low in cost and cheap, but it is easy to expand and deform when it absorbs water, has low structural strength, is easy to break, and is not flame retardant; Monotonous, poor decoration, poor thermal insulation effect, etc.; plastic shee...

AI Technical Summary

Problems solved by technology

The boards of these materials have their own advantages, but there are also some obvious shortcomings. For example, wooden boards are light in weight, easy to process, easy to install, and comfortable to the touch, etc. Cracking, non-flame retardant, etc.; particleboard is low in cost and cheap, but it is easy to swell and deform when it absorbs water, has low structural strength, is easy to break, and is not flame retardant; Monotonous, poor decoration, poor thermal insulation effect, etc.; plastic sheets are light in weight, easy to transport and install, but easy to change color, easy to deform, poor heat resistance, most of them are not flame retardant, and the production of plastic sheets wastes non-renewable fossil resources etc.; boards made of stone have high rigidity, good wear resistance, and good stability, but they are heavy, easy to break, difficult to process, poor in decoration, and poor in thermal insulation; gypsum boards are light in weight, easy to transport and install, But the strength is low, easy to break, easy to absorb moisture and return to moisture, etc.