Compound thermal-insulation material and preparation method thereof

Abstract

The invention relates to a compound thermal-insulation material and a preparation method thereof, belonging to the field of building materials. The compound thermal- insulation material consists of rubber powder and EPS granules. A rubber powder EPS granule compound thermal-insulation material is used in the thermal-insulation systems of external walls, wherein the external thermal-insulation system is one of thermal-insulation systems listed in JCJ144-2004 Technical Specification for External Thermal Insulation on Walls. The technical system consists of an interface agent, a rubber powder EPSgranule thermal-insulation sizing agent thermal-insulation layer, a crack-resistance mortar thin plaster (alkali proof gridding cloth is paved in the middle) and a finishing coat. The heat conductivity of the rubber powder EPS granule compound thermal-insulation material is smaller than or equal to 0.06w/(m.k), the dry density is 180kg/m<3>-250kg/m<3>, and the tensile strength is higher than or equal to 0.10MPa. The water retention, the adhesion, the restricted dilatability, the water resistance, the resistance against frost, the heat preservation and the like of the product are greatly improved; meanwhile, the product makes better use of waste plastic foam, thereby being beneficial to protecting environment, recycling waste and eliminating pollution.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a composite thermal insulation material and a preparation method thereof. Background technique [0002] At present, with the continuous improvement of people's requirements for building energy saving and comfort, higher requirements are also put forward for building materials. As a building insulation material for wall insulation, the ideal product should have good performance, strong weather resistance, low cost and convenient construction. However, although some enterprises are constantly changing the formula and proportion of building insulation materials in an attempt to improve their performance, however, when the water retention and adhesion of the material have improved, the insulation and crack resistance of the material are still not satisfactory. , and the price is more expensive. For example: Chinese patent CN101337797 discloses a polystyrene particle composite ther...

AI Technical Summary

Problems solved by technology

However, although some enterprises are constantly changing the formula and proportion of building insulation materials in an attempt to improve their performance, however, when the water retention and adhesion of the material have improved, the insulation and crack resistance of the material are still not satisfactory. , and more expensive

For example: Chinese patent CN101337797 discloses a polystyrene particle composite thermal insulation material. Due to the unreasonable design of the ratio of each material, the performance of this composite material is still poor, thus affecting the rationality of the performance and strength of building thermal insulation. optimization