CN105000840B - Phase change latent heat environment-friendly energy-saving type building material and preparation method thereof - Google Patents
Phase change latent heat environment-friendly energy-saving type building material and preparation method thereof Download PDFInfo
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- CN105000840B CN105000840B CN201510451634.3A CN201510451634A CN105000840B CN 105000840 B CN105000840 B CN 105000840B CN 201510451634 A CN201510451634 A CN 201510451634A CN 105000840 B CN105000840 B CN 105000840B
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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
The invention belongs to building material field, relate to a kind of latent heat of phase change environment-friendly and energy-efficient construction material and preparation method thereof.
Background technology
Along with the quickening of domestic ur-banization speed and the exception of real-estate market are burning hot, the usage amount of construction material has also reached new peak.And consequent building and heating and refrigeration increase considerably, and if things go on like this will cause the serious energy and environmental crisis, therefore, energy-saving building technology has obtained paying close attention to widely and paying attention to.Phase-change material (Phase Change Material, PCM) is the external utilization of energy of recent year and the most active field of material science aspect developmental research.Phase-change material, during its thing phase change, can absorb heat (cold) amount from environment or release heat (cold) amount to environment, thus reach the purpose of energy storage and release.Phase-change material is divided into organic and mineral-type according to chemical composition.Inorganic material has that heat of fusion is big, heat conductivity is high, and phase variable volume is little, low price etc., and its shortcoming is: degree of supercooling is big, be easily generated and be separated and the adverse effect such as aged deterioration；Organic-based material solid forming is good, be not susceptible to be separated and surfusion, corrosivity are less, stable performance, but heat conductivity is little, density is little, volatile, inflammable and phase transformation time change in volume big etc..
Summary of the invention
For above technical problem present in prior art, the present invention provides a kind of latent heat of phase change environment-friendly and energy-efficient construction material and preparation method thereof, make this construction material have the features such as heat conductivity good, fire prevention high, fixed-type, phase variable volume are suitable simultaneously, thus while meeting basic architecture material property, can make that the hot-fluid fluctuating margin between architecture indoor and outdoor weakens, action time is delayed by, thus reduce fluctuations in indoor temperature, improve comfortableness, energy efficient.
Technical scheme: a kind of latent heat of phase change environment-friendly and energy-efficient construction material, composition including following parts by weight: cement 50-80 part, kieselguhr 30-50 part, tributyl 2-acetylcitrate 0.5-3.5 part, aliphatic water reducing agent 1-5 part, poly-2,6-naphthalene diacid second two ester fiber 10-15 part, expanded vermiculite 2-7 part, triethylene glycol monomethyl ether 30-50 part, decanedioic acid 8-15 part, tetradecanoic acid 5-10 part, hexadecane 12-20 part.
Further, composition including following parts by weight: cement 65-75 part, kieselguhr 35-40 part, tributyl 2-acetylcitrate 1.0-2.0 part, aliphatic water reducing agent 2.5-4 part, modified polyester fiber 12-14 part, expanded vermiculite 3-5 part, triethylene glycol monomethyl ether 40-45 part, decanedioic acid 10-12 part, tetradecanoic acid 6-8 part, hexadecane 15-18 part.
A kind of latent heat of phase change environment-friendly and energy-efficient construction material preparation method, comprises the following steps:
(1) take decanedioic acid 8-15 part, tetradecanoic acid 5-10 part and hexadecane 12-20 part mix and blend at 130-150 DEG C, obtain mixture A；
(2) by mixture A described in expanded vermiculite 2-7 part, triethylene glycol monomethyl ether 30-50 part addition step (1), it is cooled to 80-120 DEG C and continues stirring, obtain mixture B；
(3) by cement 50-80 part after temperature is cooled to 50-60 DEG C, kieselguhr 30-50 part, tributyl 2-acetylcitrate 0.5-3.5 part, aliphatic water reducing agent 1-5 part, poly-2,6-naphthalene diacid second two ester fiber 10-15 part adds described in step (2) in reactant B, and temperature rises to 90-130 DEG C, evacuation reaction 20-40min；After cooling, dry in an oven, suppress after described latent heat of phase change environment-friendly and energy-efficient construction material.
Further, the time of mix and blend described in step (1) is 10-30min, and the speed of mix and blend is 50-80r/min.
Further, described in step (2), the time of stirring is 30-60min, and the speed of stirring is 200-450r/min.
Further, described in step (3), temperature is 100-110 DEG C.
Further, the vacuum of the evacuation reaction described in step (3) is 0.02 ~ 0.04MPa.
Further, described in step (3), the temperature of compacting is 45-50 DEG C, and the pressure of compacting is 40MPa-60MPa.
Beneficial effect:A kind of latent heat of phase change environment-friendly and energy-efficient construction material of the present invention, by adding expanded vermiculite, triethylene glycol monomethyl ether, decanedioic acid, tetradecanoic acid and hexadecane in its preparation process, make it have the features such as heat conductivity good, fire prevention good, fixed-type, phase variable volume are suitable, additionally due to the addition of phase-change material makes this construction material can be with accumulation of heat or cold-storage, make that the hot-fluid fluctuating margin between architecture indoor and outdoor weakens, action time is delayed by, thus reduce fluctuations in indoor temperature, improve comfortableness, energy efficient；Preparation process simple process of the present invention, easily operating, construction material heat conductivity prepared by the present invention is 0.35-0.7W/(m.K), transition temperature range is 15-30 DEG C, and latent heat of phase change value is 40-90J/g.
Detailed description of the invention:
Embodiment 1
(1) take decanedioic acid 8 parts, tetradecanoic acid 5 parts and hexadecane 12 parts at temperature 130 DEG C, with the speed mix and blend 30min of 50r/min, obtain mixture A；
(2) by mixture A described in expanded vermiculite 2 parts, triethylene glycol monomethyl ether 30 parts addition step (1), it is cooled to 80 DEG C, continues stirring 30min with the speed of 200r/min, obtain mixture B；
(3) by cement 50 parts after temperature is cooled to 50 DEG C, 30 parts of kieselguhr, tributyl 2-acetylcitrate 0.5 part, aliphatic water reducing agent 1 part, poly-2,6-naphthalene diacid second two ester fiber 10 parts adds described in step (2) in reactant B, and temperature rises to 90 DEG C, and vacuum is evacuation reaction 20min under 0.02 ~ 0.025MPa；After cooling, dry in an oven, compressing under temperature 45 C and pressure 40MPa after latent heat of phase change environment-friendly and energy-efficient construction material.
The heat conductivity of the most described latent heat of phase change environment-friendly and energy-efficient construction material is 0.7W/(m.K), transition temperature range is 15-20 DEG C, and latent heat of phase change value is 40J/g.
Embodiment 2
(1) take decanedioic acid 15 parts, tetradecanoic acid 10 parts and hexadecane 20 parts at temperature 150 DEG C, with the speed mix and blend 10min of 80r/min, obtain mixture A；
(2) by mixture A described in expanded vermiculite 7 parts, triethylene glycol monomethyl ether 50 parts addition step (1), it is cooled to 120 DEG C, continues stirring 60min with the speed of 450r/min, obtain mixture B；
(3) by cement 80 parts after temperature is cooled to 60 DEG C, 50 parts of kieselguhr, tributyl 2-acetylcitrate 3.5 parts, aliphatic water reducing agent 5 parts, poly-2,6-naphthalene diacid second two ester fiber 15 parts adds described in step (2) in reactant B, and temperature rises to 130 DEG C, and vacuum is evacuation reaction 40min under 0.02 ~ 0.025MPa；After cooling, dry in an oven, compressing under temperature 50 C and pressure 60MPa after latent heat of phase change environment-friendly and energy-efficient construction material.
The heat conductivity of the most described latent heat of phase change environment-friendly and energy-efficient construction material is 0.45W/(m.K), transition temperature range is 18-25 DEG C, and latent heat of phase change value is 75J/g.
Embodiment 3
(1) take decanedioic acid 10 parts, tetradecanoic acid 6 parts and hexadecane 15 parts at temperature 130 DEG C, with the speed mix and blend 30min of 50r/min, obtain mixture A；
(2) by mixture A described in expanded vermiculite 3 parts, triethylene glycol monomethyl ether 40 parts addition step (1), it is cooled to 80 DEG C, continues stirring 30min with the speed of 200r/min, obtain mixture B；
(3) by cement 65 parts after temperature is cooled to 50 DEG C, 35 parts of kieselguhr, tributyl 2-acetylcitrate 1.0 parts, aliphatic water reducing agent 2.5 parts, poly-2,6-naphthalene diacid second two ester fiber 12 parts adds described in step (2) in reactant B, and temperature rises to 90 DEG C, and vacuum is evacuation reaction 20min under 0.02 ~ 0.025MPa；After cooling, dry in an oven, compressing under temperature 45 C and pressure 40MPa after latent heat of phase change environment-friendly and energy-efficient construction material.
The heat conductivity of the most described latent heat of phase change environment-friendly and energy-efficient construction material is 0.55W/(m.K), transition temperature range is 15-25 DEG C, and latent heat of phase change value is 55J/g.
Embodiment 4
(1) take decanedioic acid 12 parts, tetradecanoic acid 8 parts and hexadecane 18 parts at temperature 150 DEG C, with the speed mix and blend 10min of 80r/min, obtain mixture A；
(2) by mixture A described in expanded vermiculite 5 parts, triethylene glycol monomethyl ether 45 parts addition step (1), it is cooled to 120 DEG C, continues stirring 60min with the speed of 450r/min, obtain mixture B；
(3) by cement 75 parts after temperature is cooled to 60 DEG C, 40 parts of kieselguhr, tributyl 2-acetylcitrate 2 parts, aliphatic water reducing agent 4 parts, poly-2,6-naphthalene diacid second two ester fiber 14 parts adds described in step (2) in reactant B, and temperature rises to 130 DEG C, and vacuum is evacuation reaction 40min under 0.02 ~ 0.025MPa；After cooling, dry in an oven, compressing under temperature 50 C and pressure 60MPa after latent heat of phase change environment-friendly and energy-efficient construction material.
The heat conductivity of the most described latent heat of phase change environment-friendly and energy-efficient construction material is 0.41W/(m.K), transition temperature range is 18-27 DEG C, and latent heat of phase change value is 79J/g.
Embodiment 5
(1) take decanedioic acid 11 parts, tetradecanoic acid 7 parts and hexadecane 16 parts at temperature 140 DEG C, with the speed mix and blend 20min of 65r/min, obtain mixture A；
(2) by mixture A described in expanded vermiculite 4 parts, triethylene glycol monomethyl ether 42 parts addition step (1), it is cooled to 105 DEG C, continues stirring 40min with the speed of 350r/min, obtain mixture B；
(3) by cement 75 parts after temperature is cooled to 55 DEG C, 48 parts of kieselguhr, tributyl 2-acetylcitrate 1.5 parts, aliphatic water reducing agent 3 parts, poly-2,6-naphthalene diacid second two ester fiber 12 parts adds described in step (2) in reactant B, and temperature rises to 115 DEG C, and vacuum is evacuation reaction 30min under 0.02 ~ 0.025MPa；After cooling, dry in an oven, compressing under temperature 48 DEG C and pressure 55MPa after latent heat of phase change environment-friendly and energy-efficient construction material.
The heat conductivity of the most described latent heat of phase change environment-friendly and energy-efficient construction material is 0.35W/(m.K), transition temperature range is 15-30 DEG C, and latent heat of phase change value is 90J/g.
Comparative example 1
(1) take decanedioic acid 11 parts and triethylene glycol monomethyl ether 42 parts is blended in temperature 105 DEG C, stir 40min with the speed of 350r/min, obtain mixture A；
(2) by cement 75 parts after temperature is cooled to 55 DEG C, 48 parts of kieselguhr, tributyl 2-acetylcitrate 1.5 parts, aliphatic water reducing agent 3 parts, poly-2,6-naphthalene diacid second two ester fiber 12 parts adds described in step (1) in reactant A, and temperature rises to 115 DEG C, and vacuum is evacuation reaction 30min under 0.02 ~ 0.025MPa；After cooling, dry in an oven, compressing under temperature 48 DEG C and pressure 55MPa after existing building material.
The heat conductivity of the most described existing building material is 0.96W/(m.K), transition temperature range is 14-18 DEG C, and latent heat of phase change value is 36J/g.
Comparative example 2
(1) take decanedioic acid 1 part and triethylene glycol monomethyl ether 45 parts is blended in temperature 120 DEG C, stir 60min with the speed of 450r/min, obtain mixture A；
(2) by cement 75 parts after temperature is cooled to 60 DEG C, 40 parts of kieselguhr, tributyl 2-acetylcitrate 5 parts, aliphatic water reducing agent 4 parts, poly-2,6-naphthalene diacid second two ester fiber 14 parts adds described in step (1) in reactant A, and temperature rises to 130 DEG C, and vacuum is evacuation reaction 40min under 0.02 ~ 0.025MPa；After cooling, dry in an oven, compressing under temperature 50 C and pressure 60MPa after existing building material.
The heat conductivity of the most described existing building material is 0.87W/(m.K), transition temperature range is 15-17 DEG C, and latent heat of phase change value is 39J/g.
Claims (8)
1. a latent heat of phase change environment-friendly and energy-efficient construction material, it is characterised in that include the composition of following parts by weight: cement
50-80 part, kieselguhr 30-50 part, tributyl 2-acetylcitrate 0.5-3.5 part, aliphatic water reducing agent 1-5 part, poly-2,6-naphthalene two
Acid second two ester fiber 10-15 part, expanded vermiculite 2-7 part, triethylene glycol monomethyl ether 30-50 part, decanedioic acid 8-15 part, tetradecanoic acid
5-10 part, hexadecane 12-20 part.
A kind of latent heat of phase change environment-friendly and energy-efficient construction material the most according to claim 1, it is characterised in that include following heavy
The composition of amount number: cement 65-75 part, kieselguhr 35-40 part, tributyl 2-acetylcitrate 1.0-2.0 part, aliphatic water reducing agent
2.5-4 part, poly-2,6-naphthalene diacid second two ester fiber 12-14 part, expanded vermiculite 3-5 part, triethylene glycol monomethyl ether 40-45 part, the last of the ten Heavenly stems
Diacid 10-12 part, tetradecanoic acid 6-8 part, hexadecane 15-18 part.
3. a latent heat of phase change environment-friendly and energy-efficient construction material preparation method, it is characterised in that comprise the following steps:
(1) decanedioic acid 8-15 part, tetradecanoic acid 5-10 part and hexadecane 12-20 part mix and blend at 130-150 DEG C are taken,
Mixture A；
(2) by mixture A described in expanded vermiculite 2-7 part, triethylene glycol monomethyl ether 30-50 part addition step (1), it is cooled to
80-120 DEG C is continued stirring, obtains mixture B；
(3) by cement 50-80 part, kieselguhr 30-50 part, tributyl 2-acetylcitrate 0.5-after temperature is cooled to 50-60 DEG C
3.5 parts, aliphatic water reducing agent 1-5 part, poly-2,6-naphthalene diacid second two ester fiber 10-15 part adds mixture described in step (2)
In B, temperature rises to 90-130 DEG C, evacuation reaction 20-40min；After cooling, dry in an oven, suppress after described
Latent heat of phase change environment-friendly and energy-efficient construction material.
A kind of latent heat of phase change environment-friendly and energy-efficient construction material preparation method the most according to claim 3, it is characterised in that step
Suddenly the time of mix and blend described in (1) is 10-30min, and the speed of mix and blend is 50-80r/min.
A kind of latent heat of phase change environment-friendly and energy-efficient construction material preparation method the most according to claim 3, it is characterised in that step
Suddenly described in (2), the time of stirring is 30-60min, and the speed of stirring is 200-450r/min.
A kind of latent heat of phase change environment-friendly and energy-efficient construction material preparation method the most according to claim 3, it is characterised in that step
Suddenly described in (3), temperature is 100-110 DEG C.
A kind of latent heat of phase change environment-friendly and energy-efficient construction material preparation method the most according to claim 3, it is characterised in that step
Suddenly the vacuum of the evacuation reaction described in (3) is 0.02 ~ 0.04MPa.
A kind of latent heat of phase change environment-friendly and energy-efficient construction material preparation method the most according to claim 3, it is characterised in that step
Suddenly described in (3), the temperature of compacting is 45-50 DEG C, and the pressure of compacting is 40MPa-60MPa.
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| CN105693152A (en) * | 2016-01-22 | 2016-06-22 | 张川川 | Energy-saving and environment-friendly type composite building material and preparation method thereof |
| CN105859174B (en) * | 2016-04-06 | 2017-11-03 | 湖北利达建设工程集团有限公司 | A kind of phase-change energy-storing heat preservation construction material and preparation method thereof |
| CN107033554B (en) * | 2017-05-03 | 2019-01-29 | 苏州轩朗塑料制品有限公司 | The preparation method and applications of high-strength environment-friendly construction material |
| CN107011636B (en) * | 2017-05-03 | 2019-02-22 | 苏州轩朗塑料制品有限公司 | A kind of preparation method and applications of modified Nano heat-insulating construction material |
| CN107189363B (en) * | 2017-06-06 | 2019-02-22 | 苏州轩朗塑料制品有限公司 | A kind of construction material preparation method and applications added with neoprene |
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| CN101343429B (en) * | 2008-09-01 | 2010-06-23 | 刘金德 | Intelligent temperature adjusting composite coating material and coating method thereof |
| US8070876B1 (en) * | 2011-05-05 | 2011-12-06 | Haihong Jiang | Fireproof insulating cementitious foam comprising phase change materials |
| CN103159437B (en) * | 2011-12-15 | 2016-08-03 | 张国庆 | A kind of conditioning coating and preparation method thereof |
| JP5599430B2 (en) * | 2012-05-29 | 2014-10-01 | エスケー化研株式会社 | Thermal storage method of heat insulation material |
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