Nanowhisker excited insulating layer plastering gypsum and preparation method thereof

Abstract

The invention discloses a nanowhisker excited insulating layer plastering gypsum and its preparation method. According to the preparation method, an inorganic cementitious material, a nanowhisker exciting agent, molding powder, an inorganic filler, lightweight aggregate and additives are added into a single-shaft colter blender with a fast-speed fly-cutter to be uniformly mixed; the mixture is then sent into a drum mixer and a corresponding proportion of lightweight aggregate is added simultaneously; and after uniform mixing, the nanowhisker excited insulating layer plastering gypsum is obtained. The nanowhisker excited insulating layer plastering gypsum of the invention has beneficial effects as follows: unit weight is small, uniformity is good and isolation is not easy to happen; fresh mortar has good sag resistance, good construction workability and low layering degree; and a mortar hardened specimen has water impermeability, freeze-thaw resistance, cracking resistance, hollowing resistance, low dry density, low heat conductivity coefficient, high strength and excellent durability.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a plaster for plastering a thermal insulation layer excited by nano-whiskers and a preparation method thereof. Background technique [0002] In recent years, with the vigorous promotion of national policies, my country's building energy-saving industry has developed rapidly, and organic sheet insulation materials represented by polystyrene boards have appeared; inorganic insulation mortar represented by inorganic vitrified microbead insulation mortar; Organic and inorganic composite thermal insulation sand materials represented by powdered polyphenylene particles. However, organic board-based thermal insulation materials have poor fire resistance, weak adhesion to the base wall, and short life. There are often reports of fires in houses under construction and insulation layer falling off and damaging pedestrians and vehicles; inorganic thermal insulation mor...

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Problems solved by technology

However, organic board-based thermal insulation materials have poor fire resistance, weak adhesion to the base wall, and short life. There are often reports of fires in houses under construction and insulation layer falling off and damaging pedestrians and vehicles; inorganic thermal insulation mortar has good fire resistance, The advantages of high strength have been vigorously promoted, but compared with organic thermal insulation materials, they have a large dry density and high thermal conductivity, which is not suitable for use in cold and severe cold regions in my country, and its development has been greatly restricted; rubber powder polyphenylene particles Although thermal insulation mortar has low thermal conductivity and good fireproof performance, the interface between polyphenylene particles and inorganic gelling components is not firmly bonded, and the strength is low. In addition, because the density difference between inorganic gelling components and organic polyphenylene particles is too large, segregation is difficult. Solution, product quality is not easy to control

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