Gypsum board with composite glass fiber veneering felts on surfaces

Abstract

The invention discloses a gypsum board with composite glass fiber veneering felts on surfaces, and relates to decorative boards for buildings. The gypsum board is mainly composed of a gypsum board core layer and the composite glass fiber veneering felts which are attached to the outer sides of the gypsum board core layer, and the composite glass fiber veneering felts comprise following raw materials of, by weight, 35-50 parts of glass fiber chopped wires, 30-45 parts of polyester fibers, and 10-25 parts of wood fibers; and the glass fiber chopped wires have a diameter of 30-35 mu and a lengthof 30-35 mm, the polyester fibers have a diameter of 20-30 mu and a length of 30-35 mm, and the wood fibers have a diameter of 14-20 mu and a length of 20-30 mm. According to the gypsum board with thecomposite glass fiber veneering felts on the surfaces, various fiber materials such as glass fibers, the polyester fibers and the wood fibers to form the composite glass fiber veneering felts with the effects of fire retardant, sound proofing and noise reduction and water proofing and mould proofing; and the composite glass fiber veneering felts are combined with a gypsum board core, or special materials are added into the gypsum board core, so that the effects of the fire retardant, the sound proofing and noise reduction and the water proofing and mould proofing are improved, and the servicelife is prolonged.

Description

technical field [0001] The invention belongs to the technical field of gypsum board products, in particular to a gypsum board with composite glass fiber veneer felt on the surface, which has the remarkable effects of fire and flame retardancy, sound insulation and noise reduction, water resistance and mildew resistance. Background technique [0002] Although ordinary gypsum board profiles have good properties such as light weight, heat preservation, heat insulation, and environmental protection, due to structural reasons, they still need to be improved in terms of fire and flame retardancy, sound insulation and noise reduction, water resistance and mildew resistance. [0003] In terms of fire and flame retardancy, the surface of ordinary gypsum boards is protective paper, and the main component of the gypsum board core is CaSO 4 • 2H 2 O After the fire, the crystalline water in the board is released, and finally the protective paper burns at high temperature, and the crysta...

AI Technical Summary

Problems solved by technology

Although some add antifungal agents in the protective paper, for example, it is mentioned in "CN201510976317.3 Gypsum board with antifungal properties" that "the surface coating of the base paper of the gypsum board will have a solubility in water of less than 200ppm A mixture of antifungal agent and starch", but if this type of gypsum board is placed in a humid environment, it will only delay surface mildew and overall structural deformation, but ultimately cannot solve the fundamental problem

[0006] The existence of the above problems in use restricts the service life and functional effects of gypsum boards under certain special conditions

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