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Preparation method of composite heat-insulating mortar based on shaped phase change material

A technology of composite thermal insulation mortar and phase change materials, which is applied in the field of building materials, can solve the problems of low utilization rate and insufficient resources per capita, and achieve the effects of good stability, cost reduction and excellent mechanical properties

Inactive Publication Date: 2018-04-20
DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] my country is rich in resources and belongs to the resource-rich country in the world, but the other side has insufficient per capita resources and low utilization rate. For a long time in the future, resources will become the bottleneck restricting my country's economic and social development.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing a composite thermal insulation mortar based on a shaped phase change material, comprising the following steps:

[0024] (1) Mix and stir erythritol and purified water until the solid dissolves to obtain a solution; add expanded graphite to the solution mixed with titanate coupling agent and isopropanol at a mass ratio of 1:1.5, and stir at 500rpm Dry at 100-110°C under normal pressure for 2 hours, then dry under vacuum at 100-110°C for 3 hours, and finally place it in a muffle furnace at 500°C for 3 hours. After grinding, add it to the above solution, and stir and mix at 1000rpm for 30 minutes; Obtain a dispersion; vacuum dry the prepared dispersion at 100°C for 5 hours to obtain a mixed powder; wherein, the mass ratio of erythritol to purified water is 1:0.5; the mass ratio of erythritol to expanded graphite is 20: 1;

[0025] (2) Composite sintering is carried out after the mixed powder prepared in step (1) is pressed, and after sintering, it i...

Embodiment 2

[0028] A method for preparing a composite thermal insulation mortar based on a shaped phase change material, comprising the following steps:

[0029] (1) Mix and stir erythritol and purified water until the solid dissolves to obtain a solution; add expanded graphite to the solution mixed with titanate coupling agent and isopropanol at a mass ratio of 1:3, and stir at 500rpm Dry at 100-110°C under normal pressure for 4 hours, then dry at 100-110°C under vacuum for 5 hours, and finally place it in a muffle furnace at 700°C for 5 hours. After the grinding treatment, add it to the above solution, and stir and mix at 1000rpm for 30 minutes; Obtain a dispersion; dry the prepared dispersion in vacuum at 120°C for 15 hours to obtain a mixed powder; wherein, the mass ratio of erythritol to purified water is 1:2; the mass ratio of erythritol to expanded graphite is 20: 3;

[0030] (2) Composite sintering is carried out after the mixed powder prepared in step (1) is pressed, and after s...

Embodiment 3

[0033] A method for preparing a composite thermal insulation mortar based on a shaped phase change material, comprising the following steps:

[0034] (1) Mix and stir erythritol and pure water until the solid dissolves to obtain a solution; add expanded graphite to the solution mixed with titanate coupling agent and isopropanol at a mass ratio of 1:2, and stir at 500rpm Dry at 100-110°C under normal pressure for 3 hours, then dry at 100-110°C under vacuum for 3 hours, and finally place it in a muffle furnace at 550°C for 3 hours. After grinding, add it to the above solution, and stir and mix at 1000rpm for 30 minutes; Obtain a dispersion liquid; vacuum dry the prepared dispersion liquid at 105°C for 7 hours to obtain a mixed powder; wherein, the mass ratio of erythritol to purified water is 1:1; the mass ratio of erythritol to expanded graphite is 20: 1.5;

[0035] (2) Composite sintering is carried out after the mixed powder obtained in step (1) is pressed and molded, and af...

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PUM

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Abstract

The invention discloses a method for preparing a composite thermal insulation mortar based on a shaped phase change material. Specifically, firstly, the shaped phase change material is prepared by using erythritol and expanded graphite as raw materials; cement, silica fume, rubber powder, basalt fiber, Sodium polyacrylate is mixed and added into a mixer for mixing and stirring, and then the above-prepared shaped phase change material and cellulose ether are added, and stirring and mixing are continued to obtain a composite thermal insulation mortar. The method is simple to operate, and the prepared shaped phase change material has good stability. The thermal insulation mortar prepared by the invention has good mechanical properties, good heat storage and thermal insulation performance, and low preparation cost.

Description

Technical field: [0001] The invention relates to the field of building materials, in particular to a method for preparing composite thermal insulation mortar based on shaped phase change materials. Background technique: [0002] my country is rich in resources and belongs to the resource-rich country in the world, but the other side has insufficient resources per capita and low utilization rate. Resources will become a bottleneck restricting my country's economic and social development for a long time in the future. In terms of building energy consumption, the proportion of short-term building energy consumption continues to increase, and the development of the construction industry continues to be booming. However, it must be noted that the design and construction of many buildings in my country often do not carry out energy-saving design, and building materials rarely use thermal insulation. Therefore, the heat transfer coefficient of the building maintenance structure is m...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B18/02
CPCC04B28/00C04B18/027C04B18/146C04B2103/0068C04B14/4643C04B24/2641C04B24/383C04B14/026C04B24/02
Inventor 李风浪
Owner DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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