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Waterproof and anti-permeability phase-change-energy-storage gypsum block and preparing method thereof

A gypsum block and phase change energy storage technology, which is applied to chemical instruments and methods, ceramic products, and other household appliances, can solve problems such as poor compatibility of building materials, leakage of phase change materials, and short service life, so as to prevent Phase change material loss, simple manufacturing process, and reduced consumption

Active Publication Date: 2016-09-07
石家庄筑佳节能产品科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both the direct addition method and the impregnation method have problems such as phase change material leakage and poor durability, and the method of microencapsulation has high cost, poor compatibility with building materials, and short service life.

Method used

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  • Waterproof and anti-permeability phase-change-energy-storage gypsum block and preparing method thereof
  • Waterproof and anti-permeability phase-change-energy-storage gypsum block and preparing method thereof
  • Waterproof and anti-permeability phase-change-energy-storage gypsum block and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Step 1: By weight, 73 parts of desulfurized building gypsum, 20 parts of active admixture (specific surface area 490m 2 / kg), 7 parts of 32.5 composite Portland cement to make mixed powder; 0.7 parts of sodium methyl siliconate, 0.4 parts of waste mycelium protein retarder, 0.4 parts of polycarboxylate superplasticizer and 48 parts of water to make a mixed solution; mix the mixed powder and the mixed solution evenly to make a slurry, inject the slurry into a mold, and make a gypsum block body with blind holes; the number of blind holes is 11 , with a diameter of 40mm and a depth of 420mm;

[0033] Step 2: Add 9 parts of expanded vermiculite with a particle size of 6 to 12 mm into the blind hole of the gypsum block body obtained in Step 1;

[0034] Step 3: Heat up capric acid and 30% stearic acid with a weight ratio of 70% to melt, mix evenly, and pour 20 parts of the prepared phase change energy storage material (its phase change temperature is 22°C) into gypsum blocks...

Embodiment 2

[0038] Step 1: By weight, 65 parts of desulfurized building gypsum, 25 parts of active admixture (specific surface area 457m 2 / kg), 10 parts of 32.5# slag portland cement to make mixed powder; 0.5 parts of VAE emulsion, 0.2 parts of sodium polyphosphate retarder, 0.3 parts of polycarboxylate superplasticizer and 50 parts water to make a mixed solution; mix the mixed powder and the mixed solution evenly to make a slurry, inject the slurry into the mold, and make a gypsum block body with blind holes; the number of blind holes is 9, and the diameter is 50mm, the depth is 400mm;

[0039]Step 2: Add 8.5 parts of waste autoclaved aerated concrete particles with a particle size of 6 to 12 mm into the blind hole of the gypsum block body obtained in Step 1;

[0040] Step 3: Heat up 50% capric acid and 50% stearic acid by weight to melt, mix evenly, pour 19 parts of the prepared phase-change energy storage material (its phase-change temperature is 35°C) into gypsum masonry In the bli...

Embodiment 3

[0046] Step 1: By weight, 80 parts of desulfurized building gypsum, 15 parts of active admixture (specific surface area 542m 2 / kg), 5 parts of 42.5# ordinary Portland cement to make mixed powder; 1 part of potassium methyl silicate, 0.5 parts of sodium citrate, 0.5 parts of naphthalene-based water reducer and 45 parts of water Make a mixed solution; mix the mixed powder and the mixed solution evenly to make a slurry, inject the slurry into a mold, and make a gypsum block body with blind holes; the number of blind holes is 7, and the diameter is 70mm. The depth is 380mm;

[0047] Step 2: Add 8 parts of light shale ceramsite with a particle size of 6 to 12 mm into the blind hole of the gypsum block body obtained in Step 1;

[0048] Step 3: heat up capric acid with a weight ratio of 95% and stearic acid with a weight ratio of 5% to melt, mix well, and pour 19 parts of the prepared phase-change energy storage material (its phase-change temperature is 28°C) into gypsum masonry I...

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Abstract

The invention provides a waterproof and anti-permeability phase-change-energy-storage gypsum block and a preparing method thereof. A gypsum block body comprises, by weight, 65-80 parts of desulfurized building gypsum, 15-25 parts of active admixture, 5-10 parts of cement, 0.5-1 part of organic waterproof agent, 0.2-0.5 part of retarder and 0.3-0.5 part of water reducing agent. Blind holes are formed in the gypsum block body and filled with porous materials and phase-change-energy-storage materials with the stable supporting effect. The gypsum block has the advantages that the phase change materials are not prone to permeability and durable, the excellent indoor temperature adjusting effect is achieved, heating devices or air conditioners can be reduced, and then consumption of fossil energy and emission of harmful gas can be reduced.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a waterproof and anti-seepage phase-change energy storage gypsum block and a preparation method thereof. Background technique [0002] Energy saving and environmental protection are two important themes in the 21st century. According to statistics, my country's building energy consumption accounts for more than 30% of the total energy consumption of the whole society, of which 50% to 70% of energy consumption comes from the use of heating and air conditioning. As a result, a large amount of fossil energy is consumed, a large amount of emissions are generated, the environment is polluted, and human health is threatened. Especially in recent years, the depletion of fossil energy and environmental pollution have become increasingly prominent. Therefore, improving energy utilization and developing and using new renewable energy have become urgent problems for mankind. [...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B38/00C09K5/06E04C1/40C04B111/27
CPCC04B28/144C04B2111/27C09K5/06E04C1/40C04B18/141C04B18/144C04B7/02C04B24/42C04B24/14C04B2103/302C04B38/0003C04B7/14C04B24/2623C04B22/16C04B24/06C04B24/226
Inventor 陈蜜蜜赵风清樊铁林张蒙蒙刘少杰刘洪杰
Owner 石家庄筑佳节能产品科技有限责任公司
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