Calcium chloride hexahydrate composite phase change thermal insulation mortar

A technology of calcium chloride hexahydrate and thermal insulation mortar, which is applied in the field of building materials and can solve problems such as small enthalpy change, supercooling, and phase separation

Pending Publication Date: 2022-03-25
HEBEI AGRICULTURAL UNIV.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, targeted selection of composite energy storage materials that can be applied to greenhouses is particularly critical. The existing phase change materials usually choose calcium

Method used

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  • Calcium chloride hexahydrate composite phase change thermal insulation mortar
  • Calcium chloride hexahydrate composite phase change thermal insulation mortar
  • Calcium chloride hexahydrate composite phase change thermal insulation mortar

Examples

Experimental program
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Embodiment 1

[0029] A composite phase change thermal insulation mortar containing calcium chloride hexahydrate, including mortar, the phase change energy storage material is 20wt%, the calcium chloride hexahydrate: strontium chloride hexahydrate: sodium carboxymethyl cellulose The ratio in parts by weight is 87:10:3.

Embodiment 2

[0031] A composite phase change thermal insulation mortar containing calcium chloride hexahydrate, including mortar, the phase change energy storage material is 30wt%, the calcium chloride hexahydrate: strontium chloride hexahydrate: sodium carboxymethyl cellulose The ratio in parts by weight is 85:10:5.

Embodiment 3

[0033] A composite phase change thermal insulation mortar containing calcium chloride hexahydrate, including mortar, the phase change energy storage material is 5wt%, the calcium chloride hexahydrate: strontium chloride hexahydrate: sodium carboxymethyl cellulose The ratio in parts by weight is 98:1:1.

[0034] Effects of different nucleating agents on the properties of phase change energy storage materials

[0035] Example 1 Nucleating agent strontium chloride hexahydrate

[0036] Step 1, sample preparation: in a constant temperature environment of 35 degrees, three parts of calcium chloride hexahydrate with a mass of 10g were respectively added to the three groups of calcium chloride hexahydrate with a weight fraction of 1%, 5%, and 10%. The nucleating agent strontium chloride hexahydrate forms a mixture. After stirring evenly, the mixture is left to stand and kept warm until the temperature is stable, and then the mixture is quickly transferred to a water bath environment ...

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PUM

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Abstract

The invention discloses calcium chloride hexahydrate-containing composite phase change thermal insulation mortar, which comprises mortar, and is characterized in that the mortar also comprises 5-30 wt% of a phase change energy storage material, the phase change energy storage material comprises calcium chloride hexahydrate, strontium chloride hexahydrate and sodium carboxymethyl cellulose, the weight part ratio of calcium chloride hexahydrate to strontium chloride hexahydrate to sodium carboxymethyl cellulose is (85-99): (1-10): (1-5). The composite phase change material is added into the thermal insulation mortar, so that the thermal insulation performance of the mortar is greatly improved, a good living environment is provided for organisms in a greenhouse, meanwhile, the use of fossil fuel is reduced, energy is saved, and the construction progress of ecological rural areas is promoted.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a calcium chloride hexahydrate composite phase-change thermal insulation mortar. Background technique [0002] Insulation mortar is a building material that uses various lightweight materials as aggregates, cement as the cementitious material, mixed with some modified additives, and then stirred and mixed to construct the insulation layer of the building surface. [0003] Phase change energy storage technology is to use materials to absorb or release a large amount of heat energy during the phase change process, thereby playing the role of temperature control and energy storage, which can solve the contradiction between energy supply and demand in terms of time and space distribution imbalance, and is an important way to improve energy efficiency. Effective means of utilizing efficiencies. Phase change energy storage materials are the core of phase change technology. Phase chan...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B22/12C04B28/00
CPCC04B40/0039C04B22/124C04B24/383C04B2103/0071C04B28/00
Inventor 郝文秀张召徐晓
Owner HEBEI AGRICULTURAL UNIV.
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