Inorganic fibre fireproof insulation board

Abstract

The invention discloses an inorganic fibre fireproof insulation board which is prepared by the following steps: preparing a wet blank by using water and the following raw materials according to weight part ratio: an inorganic fibre, an organic binding agent and a moisture repellent with weight part ratio of 100: 2-10: 0.1-1; and then uniformly coating an interface treatment agent on the wet blank, wherein the interface treatment agent is formed by modulating water with the following materials: a cement, a styrene-acrylic emulsion, an alkali-swelling thickening agent and a water repellent in the weight part ratio of 30-60: 40-70: 0.05-0.15: 2-5, and finally drying the wet blank to obtain the finished product. The inorganic fibre fireproof insulation board is has the characteristics of low thermal conductivity, non-rigid material, good toughness, low water absorbing rate, low thermal capacity, excellent thermal stability and hot shock resistance, high compression strength, high tensile strength, long service life, excellent toughness, wind erosion resisting capability, excellent machining property and excellent sound-absorbing and noise-reducing properties.

Description

technical field [0001] The invention belongs to an inorganic fiber thermal insulation and fireproof board, and belongs to the field of building energy-saving materials. Background technique [0002] Building energy conservation is an important part of energy conservation. Promoting building energy conservation is a basic national policy for the country to respond to climate change and achieve sustainable development of the national economy. Since the "Eleventh Five-Year Plan", under the vigorous promotion of the national energy conservation and emission reduction policy, my country's building energy conservation work has developed rapidly. So far, more than 1.7 billion square meters of energy-saving buildings have been completed. The outer walls of these new energy-saving buildings and energy-saving renovations of existing buildings mainly adopt external wall insulation technology, especially in northern my country, almost all use thin plaster insulation systems such as pa...

AI Technical Summary

Problems solved by technology

[0005] At present, there are many asbestos-free inorganic fiber thermal insulation fireproof boards on the market, which are mainly composed of various fibers, non-polar binders, organic binders, a large number of mineral fillers and additives. For example, the Chinese patent application number 200610155138.4 discloses a Asbestos-free high-temperature heat-resistant thermal insulation board is composed of high-temperature-resistant fibers, mineral fillers and adhesives. The content of high-temperature-resistant fibers is 40%-80%, and the content of mineral fillers is 10%-50%. A large number of mineral fillers are added to the electrodeless fiber to make a plate, and then made into particles for foam molding, spray molding, foam molding, etc., which will inevitably affect the thermal conductivity of the fiber material, resulting in a high thermal conductivity and causing The refractory temperature is low. For example, the high temperature resistance of the plate in this patent application can only reach 900°C

However, those skilled in the art know that if no mineral fillers are added, the board will be very soft and the mechanical strength will not be high