Phase change latent heat environment-friendly energy-saving type building material and preparation method thereof

A technology of latent heat of phase change and building materials, applied in the field of building materials, can solve the problems of solid forming phase separation and supercooling, low corrosion, easy to produce phase separation and aging deterioration, high thermal conductivity, and achieve good thermal conductivity, Easy operation, suitable phase change volume effect

Inactive Publication Date: 2015-10-28
刘致浦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic materials have large heat of fusion, high thermal conductivity, small phase change volume, and low price. The disadvantages are: large degree of supercooling, easy to produce phase separation and adverse effects such as aging and deterioration; org

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Take 8 parts of sebacic acid, 5 parts of myristic acid and 12 parts of n-hexadecane at a temperature of 130°C and mix and stir for 30 minutes at a speed of 50 r / min to obtain a mixture A;

[0019] (2) Add 2 parts of expanded vermiculite and 30 parts of triethylene glycol monomethyl ether into the mixture A described in step (1), cool down to 80°C, and continue stirring at a speed of 200r / min for 30min to obtain mixture B;

[0020] (3) After the temperature is cooled to 50°C, add 50 parts of cement, 30 parts of diatomaceous earth, 0.5 parts of acetyl tributyl citrate, 1 part of aliphatic water reducer, polyethylene-2,6-naphthalate Add 10 parts of fiber to the reactant B mentioned in step (2), raise the temperature to 90°C, vacuumize and react for 20min at a vacuum degree of 0.02~0.025MPa; After being pressed and formed under 40MPa, a phase change latent heat environment-friendly and energy-saving building material can be obtained.

[0021] It has been tested that th...

Embodiment 2

[0023] (1) Take 15 parts of sebacic acid, 10 parts of myristic acid and 20 parts of n-hexadecane at a temperature of 150°C and stir at a speed of 80 r / min for 10 minutes to obtain a mixture A;

[0024] (2) Add 7 parts of expanded vermiculite and 50 parts of triethylene glycol monomethyl ether into the mixture A described in step (1), cool down to 120°C, and continue stirring at a speed of 450r / min for 60 minutes to obtain mixture B;

[0025] (3) After the temperature is cooled to 60°C, add 80 parts of cement, 50 parts of diatomaceous earth, 3.5 parts of acetyl tributyl citrate, 5 parts of aliphatic water reducer, polyethylene-2,6-naphthalate Add 15 parts of fiber to the reactant B mentioned in step (2), raise the temperature to 130°C, vacuumize and react for 40min at a vacuum degree of 0.02~0.025MPa; After being pressed and formed under 60MPa, a phase change latent heat environment-friendly and energy-saving building material can be obtained.

[0026] It has been tested that ...

Embodiment 3

[0028] (1) Take 10 parts of sebacic acid, 6 parts of myristic acid and 15 parts of n-hexadecane at a temperature of 130°C and mix and stir at a speed of 50 r / min for 30 minutes to obtain a mixture A;

[0029] (2) Add 3 parts of expanded vermiculite and 40 parts of triethylene glycol monomethyl ether into the mixture A described in step (1), cool down to 80°C, and continue stirring at a speed of 200r / min for 30min to obtain mixture B;

[0030] (3) After the temperature is cooled to 50°C, add 65 parts of cement, 35 parts of diatomaceous earth, 1.0 parts of acetyl tributyl citrate, 2.5 parts of aliphatic water reducer, polyethylene-2,6-naphthalate Add 12 parts of fiber to the reactant B mentioned in step (2), raise the temperature to 90°C, vacuumize and react for 20min at a vacuum degree of 0.02~0.025MPa; After being pressed and formed under 40MPa, a phase change latent heat environment-friendly and energy-saving building material can be obtained.

[0031] It has been tested tha...

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Abstract

The invention discloses a phase change latent heat environment-friendly energy-saving type building material and a preparation method thereof. The phase change latent heat environment-friendly energy-saving type building material comprises 50-80 parts of cement, 30-50 parts of diatomite, 0.5-3.5 parts of acetyl tributyl citrate, 1-5 parts of an aliphatic water reducer, 10-15 parts of poly-2,6-naphthalene acid ethyl ester fiber, 2-7 parts of expanded vermiculite, 30-50 parts of triethylene glycol monomethyl ether, 8-15 parts of sebacic acid, 5-10 parts of tetradecanoic acid and 12-20 parts of n-hexadecane. The method comprises the steps that the sebacic acid, the tetradecanoic acid and the n-hexadecane are mixed and stirred at the temperature of 130-150 DEG C; the expanded vermiculite and the triethylene glycol monomethyl ether are added, the temperature is decreased to be 80-120 DEG C, and stirring continues to be performed; the cement, the diatomite, the acetyl tributyl citrate, the aliphatic water reducer and the poly-2,6-naphthalene acid ethyl ester fiber are added into the mixture after the temperature is decreased to be 50-60 DEG C, the temperature is increased to be 90-130 DEG C, and a vaccumizing reaction is performed for 20-40 min; after cooling is performed, drying and pressing in a drying oven are performed, and then the phase change latent heat environment-friendly energy-saving type building material can be obtained. The building material is high in heat conductivity coefficient, good in fixation and formation and resistant to fire, meanwhile energy consumption is saved, and the comfort is improved.

Description

technical field [0001] The invention belongs to the field of building materials, and relates to a phase change latent heat environment-friendly and energy-saving building material and a preparation method thereof. Background technique [0002] With the acceleration of domestic urbanization and the extremely hot real estate market, the use of building materials has also reached a new peak. The resulting substantial increase in building heating and cooling will lead to serious energy and environmental crises in the long run. Therefore, building energy-saving technologies have received extensive attention and attention. Phase change material (Phase Change Material, PCM) is a very active field of research and development in energy utilization and material science at home and abroad in recent years. Phase change materials can absorb heat (cold) from the environment or release heat (cold) to the environment during the phase change process, so as to achieve the purpose of energy ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B22/08C04B24/04
Inventor 党斌
Owner 刘致浦
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