External wall heat-insulation material for constructional engineering and preparation method thereof

Abstract

The invention discloses an external wall heat-insulation material for constructional engineering. The external wall heat-insulation material is prepared from the following raw materials in parts by weight: 15 to 20 parts of water-quenched slag, 20 to 30 parts of portland cement, 10 to 15 parts of hollow spherical zirconium oxide, 5 to 10 parts of silicon micro-powder, 10 to 20 parts of glass wool,10 to 20 parts of ceramic fiber cotton, 5 to 10 parts of hollow ceramic microspheres, 3 to 7 parts of expansive soil, 5 to 10 parts of attapulgite, 5 to 10 parts of a functional auxiliary agent basedon PPS-biphenylvinylsiloxy-heptacyclopentyl substituted derivative, 1 to 3 parts of a foaming agent, 1 to 2 parts of polyurethane and 25 to 35 parts of water. The invention further discloses a preparation method of the external wall heat-insulation material for the constructional engineering. The external wall heat-insulation material for the constructional engineering, disclosed by the inventionhas excellent comprehensive performance, remarkable heat-insulation effect and strong flame-retarding performance, heat insulation and coagulation performance.

Description

technical field [0001] The invention belongs to the technical field of construction engineering materials, and relates to a thermal insulation material, in particular to a thermal insulation material for external walls of construction engineering and a preparation method thereof. Background technique [0002] With the development of modern industrial technology becoming more and more mature, natural resources are consumed in large quantities, and energy supply is already in crisis. The whole world is concerned about energy issues. The thermal insulation of exterior walls of construction projects has become the focus of attention of researchers in the industry. However, various building engineering exterior wall insulation materials currently used are not ideal in various properties, especially in terms of thermal insulation, acid and alkali resistance, and weather resistance, which cannot meet people's needs. How to improve the comprehensive performance of building engineer...

AI Technical Summary

Problems solved by technology

Among them, benzene board is the cheapest, but its thermal insulation effect is average, and problems such as water absorption and deformation will occur during use; the thermal insulation performance of polyurethane foam materials is higher than that of benzene boards, especially the thermal conductivity of polyurethane foam materials is much lower than that of benzene boards. , but the price of polyurethane foam material is significantly higher than that of benzene board

The main disadvantages of these organic thermal insulation materials are flammability, dripping and melting, large combustion smoke, high toxicity, and combustion can produce hydrogen cyanide gas. Once a fire breaks out, it is extremely toxic to the human body, and the insulation effect is not good. It has the disadvantages of poor heat resistance and aging resistance

Inorganic thermal insulation materials have the characteristics of fire prevention, antifreeze, aging resistance and low price, but the thermal insulation efficiency is poor.

[0004] The Chinese patent with the publication number CN 104556843 A discloses a fire-proof and heat-insulating material. Pearl fly ash and rock wool are prepared as raw materials. Among them, rock wool has the disadvantage of strong water absorption and high thermal conductivity, which will easily lead to the decline of the performance of the insulation material.

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