A kind of novel shape-stabilized phase change material(SSPCM)was prepared by using a melting intercalation technique.This kind of SSPCM was made of lauric acid(LA)as a phase change material and organophilic montmorillonite(OMMT)as a support material.And the thermal properties and morphology of the SSPCM were characterized by X-ray diffraction(XRD),transmission electron microscope(TEM),scanning electronic microscope(SEM),scanning calorimeter(DSC),and differential thermal cravimetry(TG).The DSC result shows that the phase change temperature of the SSPCM is close to that of LA,and its latent heat is equivalent to that of the calculated value based on the mass ratio of LA measured by TG.The XRD,SEM and TEM results demonstrate that the LA intercalates into the silicate layers of the OMMT,thus forming a typically intercalted hybrid,which can restrict the molecular chain of the LA within the structure of OMMT at high temperature.And consequently SSPCM can keep its solid state during its solid-liquid phase change processing.
参考文献
| [1] | Chen Mei-zhu;Wei Wei;Wu Shao-peng.On Cold Materials of Pavement and High-temperature Performance of Asphalt Concrete[J].Materials Science Forum,2009:379-382. |
| [2] | Sarier N;Onder E .The manufacture of microencapsulated phase change materials suitable for the design of thermally enhanced fabrics[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2007(2):149-160. |
| [3] | Hong Y.;Ge XS. .Preparation of polyethylene-paraffin compound as a form-stable solid-liquid phase change material[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2000(1):37-44. |
| [4] | Voulgaris D.;Petridis D. .Emulsifying effect of dimethyldioctadecylammonium-hectorite in polystyrene/poly(ethyl methacrylate) blends[J].Polymer: The International Journal for the Science and Technology of Polymers,2002(8):2213-2218. |
| [5] | Wang Y.;Zhang Q.;Fu Q. .Compatibilization of immiscible poly(propylene)/polystyrene blends using clay[J].Macromolecular rapid communications: Publishing the newsletters of the European Polymer Federation,2003(3):231-235. |
| [6] | Yurekli K.;Karim A.;Amis EJ.;Krishnamoorti R. .Influence of layered silicates on the phase-separated morphology of PS-PVME blends[J].Macromolecules,2003(19):7256-7267. |
| [7] | Ray SS;Pouliot S;Bousmina M;Utracki LA .Role of organically modified layered silicate as an active interfacial modifier in immiscible polystyrene/polypropylene blends[J].Polymer: The International Journal for the Science and Technology of Polymers,2004(25):8403-8413. |
| [8] | Koray Yurekli;Alamgir Karim;Eric J.Amis;Ramanan Krishnamoorti .Phase Behavior of PS-PVME Nanocomposites[J].Macromolecules,2004(2):507-515. |
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