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Phase-change thermal-insulation cement mortar material

A technology of thermal insulation cement and mortar materials, applied in the field of building thermal insulation materials, can solve problems such as difficult process control conditions, and achieve the effects of excellent air permeability, strong adhesion, and long service life

Active Publication Date: 2020-09-22
四川尚尔美新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing data did not provide paraffin / SiO 2 The technical content of cement mortar made of composite materials, and due to the paraffin / SiO 2 The performance of composite materials is directly related to the emulsification effect, but the process control conditions during emulsification are the difficulties in the prior art
And when making cement mortar, how to obtain the best paraffin / SiO 2 Composite materials are combined with existing cement mortar materials to form a strong bonding force, which is not disclosed in the prior art

Method used

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Embodiment 1

[0055] This embodiment provides a phase-change thermal insulation cement mortar material, which has a cement mortar layer as the main body, and a waterproof adhesive layer is coated on the outside of the cement mortar layer. The cement mortar layer is composed of a phase-change composite material with a mass fraction of 25%, a Fine aggregate and 30% cementitious materials are mixed and stirred.

[0056] Among them, the phase change composite material is paraffin / SiO 2 Phase change heat storage materials, among which paraffin and SiO 2 The mass ratio is in the range of 0.6-1.7.

[0057] Paraffin wax is mainly composed of straight-chain alkanes. The melting point increases gradually with the increase of the chain, and it shows a trend of fast first and then slow. But when the chain length increases to a certain extent, the melting point of paraffin will tend to a certain value; The heat of fusion of alkanes will also increase, but due to the influence of space, the change of h...

Embodiment 2

[0066] This embodiment discloses a phase-change thermal insulation cement mortar material, a phase-change thermal insulation cement mortar material, which has a cement mortar layer as the main body, and a waterproof adhesive layer is coated on the outside of the cement mortar layer. The cement mortar layer has a mass ratio of 4.5:5:4 phase change composite material, fine aggregate and cementitious material are mixed, and the thickness of the cement mortar layer is within 10-15cm.

[0067] Among them, the phase change composite material is paraffin / SiO 2 Phase change heat storage materials, among which paraffin and SiO 2 The mass ratio is 5:5.

[0068] Paraffin and SiO in this embodiment 2 The mass ratio is defined in detail, and in order to study the performance advantages of its specific ratio, it is tested experimentally.

[0069] First make the phase change conforming material, weigh a certain quality of paraffin, 0.2g polyethylene glycol-20000 and 0.2g cetyltrimethylamm...

Embodiment 3

[0077] This embodiment discloses a phase-change thermal insulation cement mortar material. A phase-change thermal insulation cement mortar material has a cement mortar layer as the main body, and a waterproof adhesive layer is coated on the outside of the cement mortar layer. The mass ratio of the cement mortar layer is 4.5 : 5:4 phase change composite material, fine aggregate and cementitious material are mixed, and the thickness of the cement mortar layer is within 10-15cm.

[0078] Among them, the phase change composite material is paraffin / SiO 2 Phase change heat storage materials, among which paraffin and SiO 2 The mass ratio is 4:6.

[0079] Same as above-mentioned embodiment 2, in the present embodiment to paraffin and SiO 2 The mass ratio is defined in detail, and in order to study the performance advantages of its specific ratio, it is tested experimentally.

[0080] First make the phase change conforming material, weigh a certain quality of paraffin, 0.2g polyethy...

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Abstract

The invention belongs to the field of building materials, and discloses a phase-change thermal-insulation cement mortar material. The material is provided with a cement mortar layer serving as a mainbody, the cement mortar layer is coated with a waterproof adhesive layer, and the cement mortar layer is prepared by mixing and stirring 10-25% by mass of a phase-change composite material, 30-50% bymass of fine aggregate and 25-40% by mass of a cement cementing material. According to the invention, the optimal phase-change composite material is compounded with the building mortar to prepare a plate profile, the actual use performance of a paraffin / SiO2 material is tested, the product defects are improved, the preparation, technical indexes and use effect of the paraffin / SiO2 phase-change material are summarized, and data is systematically arranged and analyzed, so that the optimal mix proportion is obtained to ensure that the paraffin / SiO2 phase-change material achieves the optimal thermal insulation effect on the premise of meeting the structural strength.

Description

technical field [0001] The invention belongs to the technical field of building thermal insulation materials, and in particular relates to a phase-change thermal insulation cement mortar material. Background technique [0002] The people's requirements for the quality of life are constantly improving, and they put forward higher requirements for the quality of construction services. The current mandatory standards for building energy conservation are low. In order to speed up the pace of energy conservation and emission reduction, new energy-saving design standards must be fully implemented as soon as possible. All localities have promulgated energy-saving design standards of 75% energy-saving rate for residential buildings and 65% energy-saving rate for public buildings. Taking the energy-saving design standard of residential buildings in Tianjin as an example, it is simply estimated that the limit value of the heat transfer coefficient of the outer wall of the residential...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B41/63
CPCC04B28/00C04B41/63C04B41/48C04B14/00C04B2103/0071C04B14/06C04B24/36
Inventor 唐南芳
Owner 四川尚尔美新材料科技有限公司
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