CN104610923A - Phase change energy storage material for reflective heat-insulating coating - Google Patents

Phase change energy storage material for reflective heat-insulating coating Download PDF

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Publication number
CN104610923A
CN104610923A CN201510015930.9A CN201510015930A CN104610923A CN 104610923 A CN104610923 A CN 104610923A CN 201510015930 A CN201510015930 A CN 201510015930A CN 104610923 A CN104610923 A CN 104610923A
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China
Prior art keywords
phase
energy storage
storage material
changing energy
reflective heat
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Pending
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CN201510015930.9A
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Chinese (zh)
Inventor
王剑峰
沈航
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FUJIAN CONSTRUCTION ENGINEERING AND CONSTRUCTION MATERIAL TECHNOLOGY DEVELOPMENT Co Ltd
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FUJIAN CONSTRUCTION ENGINEERING AND CONSTRUCTION MATERIAL TECHNOLOGY DEVELOPMENT Co Ltd
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Priority to CN201510015930.9A priority Critical patent/CN104610923A/en
Publication of CN104610923A publication Critical patent/CN104610923A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02Materials undergoing a change of physical state when used
    • C09K5/06Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063Materials absorbing or liberating heat during crystallisation; Heat storage materials

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention provides a phase change energy storage material for a reflective heat-insulating coating. The phase change energy storage material adopts a core-shell microcapsule structure; a core layer is a phase change material and comprises at least one of alkane containing the carbon number of 10-30, fatty acid, fatty acid ester and carbonic ester and has the melting range of 25-35 DEG C; a shell layer adopts a seal support structure formed by a cross-linked polymer and comprises one of an acrylate copolymer, a styrene-acrylate copolymer, thermosetting phenol resin and polyurea-melamine resin, and the core layer is wrapped in the shell layer. According to the phase change energy storage material, the reflective heat-insulating effect of the coating can be obviously improved, so that the purposes of energy conservation and emission reduction are achieved.

Description

A kind of reflective heat-insulation paint phase-changing energy storage material
[technical field]
The present invention relates to a kind of reflective heat-insulation paint phase-changing energy storage material.
[background technology]
At present, reflective heat-insulation paint sold on the market is mainly through reflection irradiation, and isolated or retardance thermal conduction, the method increasing coating radiation capacity reaches and presses down thermal effect.For dark paint, it is lower at the reflectivity of all wave band spectrum, and the light wave when accepting irradiation because absorbing easily produces thermal accumlation at coatingsurface.When coating and coated basic unit produce the larger temperature difference, leading fast of heat is just inevitable, thus makes coating lose effect of heat insulation; And in the winter time or the cold time, due to the bridging effect of reflective heat-insulation paint gegenschein radiation, energy can not be accumulated at building surface, declines very fast in the temperature of post sunset buildings, makes whole building surface present the cold situation of Xia Redong.Therefore delayed coating is with the pace of change of temperature, the temperature of mild coating becomes scope, reduces its temperature peaks valley, just become that design is green, energy-saving and environmental protection coating need the problem of solution badly, the effect also for improving reflective heat-insulation paint provides new thinking.
Phase change material, can occur to absorb or release of heat in the process of phase in version at it, but the temperature of maintenance itself does not change.Utilize this characteristic of material, the large and molten journey of specific heat capacity and the comparatively close material of human comfort's temperature can be used to carry out change that is mild or temperature hysteresis, reach the reallocation of energy and make full use of, thus realizing energy-saving effect.There is the syntheses and properties achievement of many phase change materials to be seen in bibliographical information and patent at present, it is used, significantly can promote the reflective insulation effect of coating, thus reach the object of energy-saving and emission-reduction.
[summary of the invention]
The technical problem to be solved in the present invention, is to provide a kind of reflective heat-insulation paint phase-changing energy storage material, significantly can promotes the reflective insulation effect of coating, thus reach the object of energy-saving and emission-reduction.
The present invention is achieved in that
A kind of reflective heat-insulation paint phase-changing energy storage material, the structure of described phase-changing energy storage material is " core-shell structure copolymer " microcapsule structure; Described stratum nucleare is phase change material, and composition comprises containing at least one in the alkane of carbon number 10 ~ 30, lipid acid, fatty acid ester, carbonic ether, and melting range is 25 ~ 35 DEG C; Described shell is the sealing supporting structure that cross-linked polymer is formed, and form the one comprised in acrylate copolymer, copolymer in cinnamic acrylic ester, heat-reactive phenolic resin, polyureas-melamine resin, described stratum nucleare is wrapped in shell.
Further, the particle diameter of the phase-changing energy storage material of described microcapsule structure is 0.5 ~ 10 μm, and latent heat of phase change is at more than 100J/g.
Further, described phase-changing energy storage material makes an addition in reflective heat-insulation paint with aqueous dispersion phase or solid phase mode.
Further, in described reflective heat-insulation paint, the massfraction content of phase-changing energy storage material is 5 ~ 10%.
Tool of the present invention has the following advantages:
Relative to common reflective heat-insulation paint, the coating that with the addition of phase-changing energy storage material of the present invention has more significant effect of heat insulation and more mild " coating temperature-time " change curve.Add the reflective heat-insulation paint of phase-changing energy storage material 7.5% massfraction, its time corresponding to film peak value delay than blank group 0.5 little time, and peakedness ratio blank group is low 1.2 DEG C.
In a word, phase-changing energy storage material of the present invention, by undergoing phase transition absorption latent heat at phase transition point temperature, hinders or the intensification of delayed coating or temperature-fall period, thus strengthens the reflective insulation effect of coating, reflective heat-insulation paint accumulation of heat effect is in the winter time improved greatly, thus reaches the object of energy-saving and emission-reduction.
[accompanying drawing explanation]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is that the present invention is for reflective heat-insulation paint effect of heat insulation change curve.
[embodiment]
The present invention relates to a kind of reflective heat-insulation paint phase-changing energy storage material, the structure of described phase-changing energy storage material is " core-shell structure copolymer " microcapsule structure; Described stratum nucleare is phase change material, and composition comprises containing at least one in the alkane of carbon number 10 ~ 30, lipid acid, fatty acid ester, carbonic ether, and melting range is 25 ~ 35 DEG C; Described shell is the sealing supporting structure that cross-linked polymer is formed, and form the one comprised in acrylate copolymer, copolymer in cinnamic acrylic ester, heat-reactive phenolic resin, polyureas-melamine resin, described stratum nucleare is wrapped in shell.
The particle diameter of the phase-changing energy storage material of described microcapsule structure is 0.5 ~ 10 μm, and latent heat of phase change is at more than 100J/g.
Described phase-changing energy storage material makes an addition in reflective heat-insulation paint with aqueous dispersion phase or solid phase mode.
In described reflective heat-insulation paint, the massfraction content of phase-changing energy storage material is 5 ~ 10%.
Below in conjunction with specific embodiment, the present invention is further illustrated.
Embodiment 1,
A kind of reflective heat-insulation paint phase-changing energy storage material, the structure of described phase-changing energy storage material is " core-shell structure copolymer " microcapsule structure; Described stratum nucleare is phase change material, consists of 30# phase change paraffin, palmitic acid mixture, and melting range is 25 ~ 35 DEG C; Described shell is the sealing supporting structure that cross-linked polymer is formed, and consist of vinylbenzene-acrylate copolymer, described stratum nucleare is wrapped in shell.
Embodiment 2,
A kind of reflective heat-insulation paint phase-changing energy storage material, the structure of described phase-changing energy storage material is " core-shell structure copolymer " microcapsule structure; Described stratum nucleare is phase change material, consists of capric acid, lauric acid mixture, and melting range is 25 ~ 35 DEG C; Described shell is the sealing supporting structure that cross-linked polymer is formed, and consist of vinylbenzene-acrylate copolymer, described stratum nucleare is wrapped in shell.
Embodiment 3,
A kind of reflective heat-insulation paint phase-changing energy storage material, the structure of described phase-changing energy storage material is " core-shell structure copolymer " microcapsule structure; Described stratum nucleare is phase change material, consists of whiteruss, capric acid, and melting range is 25 ~ 35 DEG C; Described shell is the sealing supporting structure that cross-linked polymer is formed, and consist of polyureas-melamine resin, described stratum nucleare is wrapped in shell.
Embodiment 4,
Effect of heat insulation is tested: (change curve and data analysis)
By the blank sample of this formula modulation coating called after;
Process white in formula is replaced with microcapsules of storing energy through phase change latex, and (latex core is configured to capric acid 20%, palmitinic acid 80% mixture, shell is vinylbenzene-butyl acrylate copolymer), consumption is 16%, and deionized water consumption is reduced 8%, obtained sample called after test specimens;
By blank sample and test specimens by 6.6 saving heat insulating temperature difference testing method and test, record temperature-time combination in GB/T 235-2008 " architectural reflective heat-insulation paint ", paint graphic representation as shown in Figure 1:
Fig. 1 be coating back surface temperature with infrared ray radiation time changing curve: white point line is blank sample, and dotted line be add phase change material test specimens performance.As seen from Figure 1, phase change material add the mean specific heat slightly adding top coat, the back surface temperature of coating is tended towards stability relative to blank sample with the rising of infrared ray radiation time; In addition, test specimens enters a temperature platform when being warming up to 23.8 DEG C (when exposing to 22 minutes), this temperature can holding temperature occur to change (± 0.2 DEG C) by a small margin in the irradiation of 10 minutes, can think that it is in the region of phase change material generation effect.
In summary, relative to common reflective heat-insulation paint, the coating that with the addition of phase-changing energy storage material of the present invention has more significant effect of heat insulation and more mild " coating temperature-time " change curve.Add the reflective heat-insulation paint of phase-changing energy storage material 7.5% massfraction, its time corresponding to film peak value delay than blank group 0.5 little time, and peakedness ratio blank group is low 1.2 DEG C.
In a word, phase-changing energy storage material of the present invention, by undergoing phase transition absorption latent heat at phase transition point temperature, hinders or the intensification of delayed coating or temperature-fall period, thus strengthens the reflective insulation effect of coating, reflective heat-insulation paint accumulation of heat effect is in the winter time improved greatly, thus reaches the object of energy-saving and emission-reduction.
Although the foregoing describe the specific embodiment of the present invention; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present invention and change, should be encompassed in scope that claim of the present invention protects.

Claims (4)

1. a reflective heat-insulation paint phase-changing energy storage material, is characterized in that: the structure of described phase-changing energy storage material is " core-shell structure copolymer " microcapsule structure; Described stratum nucleare is phase change material, and composition comprises containing at least one in the alkane of carbon number 10 ~ 30, lipid acid, fatty acid ester, carbonic ether, and melting range is 25 ~ 35 DEG C; Described shell is the sealing supporting structure that cross-linked polymer is formed, and form the one comprised in acrylate copolymer, copolymer in cinnamic acrylic ester, heat-reactive phenolic resin, polyureas-melamine resin, described stratum nucleare is wrapped in shell.
2. a kind of reflective heat-insulation paint phase-changing energy storage material according to claim 1, is characterized in that: the particle diameter of the phase-changing energy storage material of described microcapsule structure is 0.5 ~ 10 μm, and latent heat of phase change is at more than 100J/g.
3. a kind of reflective heat-insulation paint phase-changing energy storage material according to claim 1, is characterized in that: described phase-changing energy storage material makes an addition in reflective heat-insulation paint with aqueous dispersion phase or solid phase mode.
4. a kind of reflective heat-insulation paint phase-changing energy storage material according to claims 1 to 3 any one, is characterized in that: in described reflective heat-insulation paint, the massfraction content of phase-changing energy storage material is 5 ~ 10%.
CN201510015930.9A 2015-01-13 2015-01-13 Phase change energy storage material for reflective heat-insulating coating Pending CN104610923A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105219146A (en) * 2015-10-26 2016-01-06 福建建工建材科技开发有限公司 A kind of aqueous colorful imitates stone coating system
CN107871916A (en) * 2016-09-26 2018-04-03 南通新宙邦电子材料有限公司 A kind of temperature control device and lithium ion battery for lithium ion battery
CN108179006A (en) * 2017-12-20 2018-06-19 上海叹止新材料科技有限公司 A kind of phase-change accumulation energy heat-barrier material and preparation method and application
CN111019445A (en) * 2019-11-27 2020-04-17 福建建工建材科技开发有限公司 A special finish paint for reflective heat-insulating paint

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105219146A (en) * 2015-10-26 2016-01-06 福建建工建材科技开发有限公司 A kind of aqueous colorful imitates stone coating system
CN107871916A (en) * 2016-09-26 2018-04-03 南通新宙邦电子材料有限公司 A kind of temperature control device and lithium ion battery for lithium ion battery
CN108179006A (en) * 2017-12-20 2018-06-19 上海叹止新材料科技有限公司 A kind of phase-change accumulation energy heat-barrier material and preparation method and application
CN111019445A (en) * 2019-11-27 2020-04-17 福建建工建材科技开发有限公司 A special finish paint for reflective heat-insulating paint
CN111019445B (en) * 2019-11-27 2022-01-04 福建建工建材科技开发有限公司 Special finish paint for reflective heat-insulating coating

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