Preparation method for colored-stone foamed thermal-insulation decorative plate and product thereof

Abstract

The invention relates to a preparation method for a colored-stone foamed thermal-insulation decorative plate. The preparation method comprises the following steps: step 1, preparation of a green body: mixing raw materials consisting of perlite, bentonite, zeolite, kaolin, travertine, black clay, green ceramic silicon powder, fluorite tailings, combustible carbon powder, gangue, short-cut basalt fiber and polypropylene short-cut fiber, then successively carrying out crushing, wet ball milling, uniform ageing, spray drying, granulation and pulverization, carrying out compacting and molding so as to obtain a biscuit and drying the biscuit so as to obtain the green body; step 2, preparation of a glaze and glazing: subjecting the raw materials for the green body, albite and potash feldspar to ball milling so as to obtain the glaze and glazing the green body with the glaze; and step 3, carrying out high-temperature sintering on the glazed green body so as to form the colored-stone foamed thermal-insulation decorative plate with the glaze and with closed pores uniformly and densely distributed in the green body. The colored-stone foamed thermal-insulation decorative plate provided by the invention has the technical effects of lightweight, thermal insulation performance, fire resistance, water resistance, high strength, aging resistance and wearing of a decorative surface.

Description

technical field [0001] The invention relates to a preparation method of a foamed colored stone thermal insulation decorative board and a product thereof. Background technique [0002] Building exterior wall insulation system is a very important part of energy-saving buildings. It is widely used in domestic and foreign construction projects. The existing insulation boards mainly include EPS boards, XPS boards, PU boards, phenolic boards, foam concrete boards, and rock wool. board etc. The facing layer is inorganic board, metal board, stone board and ceramic board with various coatings. The facing is directly bonded to the insulation layer material with polyurethane glue or epoxy glue. These materials mainly have the following disadvantages: [0003] 1. The veneer is not a lightweight material and has a large volume, so it cannot be lightweight. [0004] 2. The insulation layer is made of organic materials, which has the problems of poor durability and poor fire resistance...

AI Technical Summary

Problems solved by technology

[0003] 1. The veneer is not a lightweight material and has a large volume, so it cannot be lightweight

[0004] 2. The insulation layer is made of organic materials, which has the problems of poor durability and poor fire resistance

[0007] 1. The durability of the system is short. The design service life of the external wall insulation project is 25 years. Whether the commonly used organic insulation materials can be used for 25 years remains to be tested, while the inorganic insulation has a high water absorption rate and a large shrinkage rate, which affects the actual service life

[0008] 2. The safety performance is worrying. At present, the most commonly used external wall insulation materials are still organic materials, which have poor fire performance, and there are fire safety hazards in the process of construction and use.

[0009] 3. The construction process is complicated, and there are many hidden dangers in quality. The external wall insulation technology has very strict requirements on the construction level. If you are not familiar with the construction method and technical requirements, or the workers have a low level of technical operation, and the construction management is not strict enough, it is easy to cause serious problems. quality problems

[0010] 4. The cost of the system is high, and there are many construction procedures for the external wall thermal insulation system. When thermal insulation mortar is used as the thermal insulation layer, it is generally divided into three (or even more) plastering, and each plastering needs to be done after the previous plastering layer has hardened Then, an anti-crack layer needs to be installed outside the insulation layer, and a protective layer of mesh cloth or steel wire mesh should be installed, and finally the decorative surface coating should be done.