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Method for preparing phase transition insulation mortar and test method thereof

A technology of thermal insulation mortar and testing method, which is applied in the direction of material thermal development, etc., can solve the problems such as the standard is not yet perfect, and achieve the effect of rapid and effective preparation

Inactive Publication Date: 2014-03-26
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] How to prepare and test the thermal insulation performance of phase change thermal insulation mortar, at present, the relevant standards have not yet been perfected

Method used

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  • Method for preparing phase transition insulation mortar and test method thereof
  • Method for preparing phase transition insulation mortar and test method thereof
  • Method for preparing phase transition insulation mortar and test method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation method of phase change thermal insulation mortar:

[0028] The first step is to screen porous vitrified microbeads with a particle size within 2mm as the carrier material, and dry them in an oven at 50°C for 2 hours before preparation;

[0029] The second step is to carry out the capillary adsorption of vitrified microbeads on the phase change material n-octadecane under 50°C water bath heating and 5000rpm mechanical stirring to obtain a composite phase change material, and repeat this step to obtain sufficient composite phase change materials;

[0030] The third step is to mix the composite phase change material, cement and water in proportion to prepare the phase change insulation mortar, in which the mass ratio of cement to water is 2:1, and the ratio of cement to composite phase change material is 3:1, and then use specific specifications The mold is used to make a 20cm*20cm*1.3cm phase-change mortar cement board and a corresponding blank test sample (th...

Embodiment 2

[0033] Preparation method of phase change thermal insulation mortar:

[0034] The first step is to screen porous vitrified microbeads with a particle size within 2mm as the carrier material, and dry them in an oven at 50°C for 3 hours before preparation;

[0035] The second step is to carry out the capillary adsorption of vitrified microbeads on the phase change material n-octadecane under 100°C water bath heating and 2000rpm mechanical stirring to obtain a composite phase change material. Repeat this step to obtain sufficient composite phase change materials;

[0036] The third step is to mix the composite phase change material, cement and water in proportion to prepare the phase change insulation mortar, in which the mass ratio of cement to water is 2:1, and the ratio of cement to composite phase change material is 4:1, and then use specific specifications The mold is used to make a 20cm*20cm*1.3cm phase-change mortar cement board and a corresponding blank test sample (that ...

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Abstract

The invention discloses a method for preparing phase transition insulation mortar and a test method thereof. The preparation method comprises the following steps of: (1) screening the vitreous beads according to granularity, and then drying in a baking oven; (2) under conditions of water-bath heating and continuous mechanical stirring, carrying out adsorption of phase transition material n-octadecane by utilizing capillary absorption affinity of micropores of the vitreous beads, to form a composite phase transition material; and (3) mixing cement, water and composite phase transition material to prepare the phase transition insulation mortar. The test method comprises the following steps of: (1) preparing a phase transition mortar cement plate from phase transition insulation mortar; and (2) building a heating and temperature measuring system for measuring a temperature varying condition of the phase transition mortar cement plate under a continuous heating condition after refrigerator refrigeration, and selecting the temperature varying condition in a temperature range of 0-40 DEG C to represent thermal insulation performances of the phase transition mortar cement plate. The method provided by the invention can rapidly and effectively prepare the phase transition insulation mortar. The test method can reasonably represent the performances of the phase transition insulation mortar.

Description

[0001] technical field [0002] The invention belongs to the technical field of composite phase change materials, in particular, relates to a [0003] Preparation method and test method of phase change thermal insulation mortar. Background technique [0004] Energy issues have become an important factor affecting economic development and the improvement of living standards, and the field of building energy conservation is increasingly concerned. Phase change thermal insulation building materials have the advantages of both traditional building materials and phase change materials, and can effectively meet the needs of heat storage, energy saving, green environmental protection, etc. [0005] Phase-change thermal insulation mortar refers to the construction mortar containing composite phase-change material components. The phase-change cold storage capacity of buildings constructed of phase-change thermal insulation mortar is significantly improved, which can effective...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00G01N25/20
Inventor 吕树申陈楷炫莫冬传潘亚宏
Owner SUN YAT SEN UNIV
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