Na_2S_2O_3·5H_2O复合材料的制备及循环稳定性能
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摘要
为了解决Na_2S_2O_3·5H_2O存在的过冷度过大导致不结晶的问题,提高复合相变材料的循环稳定性并抑制相分离现象,以CaSO_4和1-萘酚(C_(10)H_8O)为成核剂;聚丙烯酸钠(PAAS)和羧甲基纤维素钠(CMC)为增稠剂进行改良,通过步冷曲线和差示扫描量热法(DSC)对复合相变材料进行了研究。实验结果表明:加入质量分数为1%和5%的CaSO_4、0.5%和3%的C_(10)H_8O对Na_2S_2O_3·5H_2O有较好的成核作用。萘酚体系在加入增稠剂后降温冷却时不出现结晶现象。对于CaSO_4体系,增稠剂PAAS效果优于CMC,Na_2S_2O_3·5H_2O+1%CaSO_4+2%PAAS复合材料相变温度47.7℃,相变潜热为200.4J/g;Na_2S_2O_3·5H_2O+5%CaSO_4+2%PAAS复合材料相变温度48.2℃,相变潜热为213.4J/g;经过100次高低温循环后,1%CaSO_4的复合材料相变温度47.6℃,相变潜热为192.4J/g,相较循环前相变潜热降低了3.99%。5%CaSO_4的复合材料相变温度47.8℃,相变潜热211.2J/g,相比循环前下降1.03%。5%CaSO_4体系较优于1%CaSO_4体系,循环前后潜热值、相变温度变化不大,循环稳定性良好。
This study is aimed to deal with the non-crystallization caused by condensate depression of Na_2S_2O_3·5H_2O, to improve the cycle stability of composite phase change materials, and to inhibit phase separation. In solving these problems, CaSO_4 and 1-naphthol(C_(10)H_8O) are used as nucleating agents, and PAAS and CMC as thickeners. Composite phase change materials are analysed by the cooling curve and DSC. The experiments show that adding CaSO_4 with mass fraction of 1% and 5% and C_(10)H_8O of 0.5% and3% can help enormously in the nucleation of Na_2S_2O_3·5H_2O. When the thickeners are added, the naphthol system would not crystallize after cooling. For the CaSO_4 system, the effect of the PAAS thickener is better than that of CMC. The phase transition temperature of Na_2S_2O_3·5H_2O+1%CaSO_4+2%PAAS composite is47.7℃, and the latent heat of phase change is 200.4 J/g. The phase transition temperature of Na_2S_2O_3·5H_2O+5% CaSO_4+2% PAAS composite is 48.2℃, and the latent heat of phase change is 213.4 J/g. After high-low temperature cycle test, the phase transition temperature of 1% CaSO_4 composite is 47.6℃, and the latent heat of phase change is 192.4 J/g, which is decreased by 3.9C_(10)H_8O% compared with the precirculation phase change. The phase transition temperature of the composite material of 5% CaSO_4 is47.8℃ and the latent heat of phase change is 211.2 J/g, which is 1.03% lower than that before the cycle.The 5% CaSO_4 system is better than the 1% CaSO_4 system. The latent heat value and phase transition temperature change little before and after cycling,showing good cycling stability.
This study is aimed to deal with the non-crystallization caused by condensate depression of Na_2S_2O_3·5H_2O, to improve the cycle stability of composite phase change materials, and to inhibit phase separation. In solving these problems, CaSO_4 and 1-naphthol(C_(10)H_8O) are used as nucleating agents, and PAAS and CMC as thickeners. Composite phase change materials are analysed by the cooling curve and DSC. The experiments show that adding CaSO_4 with mass fraction of 1% and 5% and C_(10)H_8O of 0.5% and3% can help enormously in the nucleation of Na_2S_2O_3·5H_2O. When the thickeners are added, the naphthol system would not crystallize after cooling. For the CaSO_4 system, the effect of the PAAS thickener is better than that of CMC. The phase transition temperature of Na_2S_2O_3·5H_2O+1%CaSO_4+2%PAAS composite is47.7℃, and the latent heat of phase change is 200.4 J/g. The phase transition temperature of Na_2S_2O_3·5H_2O+5% CaSO_4+2% PAAS composite is 48.2℃, and the latent heat of phase change is 213.4 J/g. After high-low temperature cycle test, the phase transition temperature of 1% CaSO_4 composite is 47.6℃, and the latent heat of phase change is 192.4 J/g, which is decreased by 3.9C_(10)H_8O% compared with the precirculation phase change. The phase transition temperature of the composite material of 5% CaSO_4 is47.8℃ and the latent heat of phase change is 211.2 J/g, which is 1.03% lower than that before the cycle.The 5% CaSO_4 system is better than the 1% CaSO_4 system. The latent heat value and phase transition temperature change little before and after cycling,showing good cycling stability.
引文
[1]章学来,王迎辉,纪珺,等.山梨酸钾/氯化钾复合相变材料制备及热物性分析[J].农业工程学报, 2018, 34(18):277-283.ZHANG Xuelai, WANG Yinghui, JI Jun, et al. Preparation and thermal properties of potassium sorbate/potassium chloride composite phase change materials[J]. Transactions of the Chinese Society of Agricultural Engineering, 2018, 34(18):277-283.
[2]周孙希,章学来,刘升,等.癸醇-棕榈酸/膨胀石墨低温复合相变材料的制备与性能[J].化工学报, 2019, 70(1):290-297.ZHOU Sunxi, ZHANG Xuelai, LIU Sheng, et al. Preparation and properties of low temperature composite phase change materials of sterol-palmitic acid/expanded graphite[J].CIESC Journal, 2019, 70(1):290-297.
[3]何媚质,杨鲁伟,张振涛.有机-无机复合相变材料的研究进展[J].化工进展, 2018, 37(12):4709-4718.HE Meizhi, YANG Luwei, ZHANG Zhentao. Research progress of organic-inorganic composite phase change materials[J]. Chemical Industry and Engineering Progress, 2018, 37(12):4709-4718.
[4]纪珺,刘宇飞,任迎蕾,等. Ba(OH)2·8H2O复合相变材料及其在太阳能光伏/热集热器上的释热特性[J].化工学报, 2017, 68(8):2985-2990.JI Jun, LIU Yufei, REN Yinglei, et al. Ba(OH)2·8H2O composite phase change material and its heat release characteristics on solar photovoltaic/thermal collectors[J]. Journal of Chemical Industry and Engineering, 2017, 68(8):2985-2990.
[5]李玉洋,章学来,徐笑锋,等.正辛酸-肉豆蔻酸低温相变材料的制备和循环性能[J].化工进展, 2018, 37(2):689-693.LI Yuyang, ZHANG Xuelai, XU Xiaofeng, et al. Preparation and cycling properties of n-octanoic acid-myristic acid low temperature phase change materials[J]. Chemical Industry and Engineering Progress, 2018, 37(2):689-693.
[6]沈澄,徐玲玲,李文浩.相变储能材料在建筑节能领域的研究进展[J].材料导报, 2015, 29(5):100-104.SHEN Cheng, XU Lingling, LI Wenhao. Research progress of phase change energy storage materials in building energy efficiency[J].Materials Review, 2015, 29(5):100-104.
[7]顾晓滨,秦善,牛菁菁.相变储能矿物材料研究现状及其展望[J].矿物岩石地球化学通报, 2014, 33(6):932-940.GU Xiaobin, QIN Shan, NIU Jingjing. Research status and prospects of phase change energy storage mineral materials[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2014, 33(6):932-940.
[8]江叶帆,左清.建筑节能中应用相变材料的意义分析与阐释[J].江西建材, 2017(11):13-14.JIANG Yefan, ZUO Qing. Analysis and interpretation of the application of phase change materials in building energy saving[J].Jiangxi Building Materials, 2017(11):13-14.
[9]韩兴超,章学来,华维三,等.建筑用太阳能光热相变储能瓦片设计[J].可再生能源, 2018, 36(3):359-364.HAN Xingchao, ZHANG Xuelai, HUA Weisan, et al. Design of solar energy photothermal phase change energy storage tiles for buildings[J].Renewable Energy, 2018, 36(3):359-364.
[10]任丽辉,赵学工,高树成.基于相变材料和空调制冷的组合式准低温储粮技术应用研究[J].粮食与饲料工业, 2017(3):12-15.REN Lihui, ZHAO Xuegong, GAO Shucheng. Application research of combined quasi-low temperature storage grain technology based on phase change materials and air conditioning refrigeration[J]. Cereal and Feed Industry, 2017(3):12-15.
[11]徐笑锋,章学来,李玉洋,等.十水硫酸钠相变蓄冷保温箱保冷特性的试验研究[J].农业工程学报, 2017, 33(22):308-314.XU Xiaofeng, ZHANG Xuelai, LI Yuyang, et al. Experimental study on cold retention characteristics of sodium sulfate sodium phase change storage cold storage incubator[J]. Transactions of the Chinese Society of Agricultural Engineering, 2017, 33(22):308-314.
[12]黄艳,章学来.蓄冷技术在食品冷链物流中的研究进展[J].包装工程, 2015, 36(15):23-29.HUANG Yan, ZHANG Xuelai. Research progress of cool storage technology in food cold chain logistics[J]. Packaging Engineering,2015, 36(15):23-29.
[13]彭犇,岳昌盛,邱桂博,等.相变储能材料的最新研究进展与应用[J].材料导报, 2018, 32(s1):248-252.PENG Ben, YUE Changsheng, QIU Guibo, et al. The latest research progress and application of phase change energy storage materials[J].Materials Review, 2018, 32(s1):248-252.
[14]郑涛杰,陈志莉,刘强,等.水合盐相变储能材料的增稠剂优选研究[J].太阳能学报, 2018, 39(7):1781-1787.ZHENG Taojie, CHEN Zhili, LIU Qiang, et al. Study on the thickener optimization of hydrated salt phase change energy storage materials[J].Acta Energiae Solaris Sinica, 2018, 39(7):1781-1787.
[15]铁生年,蒋自鹏.相变储能材料在温室大棚中应用研究进展[J].硅酸盐通报, 2015, 34(7):1933-1940.TIE Shengnian, JIANG Zipeng. Research progress of phase change energy storage materials in greenhouses[J]. Silicate Bulletin, 2015, 34(7):1933-1940.
[16]刘宝新,袁沐.集装箱船军事应用价值分析[J].集装箱化, 2018, 29(5):8-11.LIU Baoxin, YUAN Mu. Analysis of military application value of container ships[J]. Containerization, 2018, 29(5):8-11.
[17]高学农,刘欣,孙滔,等.基于复合相变材料的电子芯片热管理性能研究[J].高校化学工程学报, 2013, 27(2):187-192.GAO Xuenong, LIU Xin, SUN Tao, et al. Study on thermal management performance of electronic chip based on composite phase change materials[J]. Journal of Chemical Engineering of Chinese Universities, 2013, 27(2):187-192.
[18]李靖,谢如鹤,刘广海.冷藏运输用新型低温相变材料及装备的研制[J].制冷学报, 2018, 39(4):32-37.LI Jing, XIE Ruhe, LIU Guanghai. Development of new low temperature phase change materials and equipment for cold storage[J].Journal of Refrigeration, 2018, 39(4):32-37.
[19] JIN X, ZHANU S I, MEDINA M A, et al. Experimental study of the cooling process of partially-melted sodium acetate trihydrate[J].Energy and Buildings, 2014, 76:654-660.
[20]李凤艳,王鹏,袁亚东,等.相变温度为室温的Na2SO4·10H2O相变储热材料的制备研究[J].合成材料老化与应用, 2015, 44(1):39-41, 46.LI Fengyan, WANG Peng, YUAN Yadong, et al.Preparation of Na2SO4·10H2O phase change thermal storage material with phase transition temperature at room temperature[J]. Aging and Application of Synthetic Materials, 2015, 44(1):39-41, 46.
[21]纪珺,曾涛,章学来,等.改良六水氯化钙相变材料的制备及性能[J].低温与超导, 2017, 45(10):71-76.JI Jun, ZENG Tao, ZHANG Xuelai, et al. Preparation and properties of modified calcium chloride phase change materials[J]. Cryo and Supercond, 2017, 45(10):71-76.
[22]王会春.含六水氯化镁-六水硝酸镁共晶盐的复合相变材料制备及其热特性[D].广州:华南理工大学, 2017.WANG Huichun. Preparation and thermal properties of composite phase change materials containing magnesium chloride hexahydratemagnesium nitrate hexahydrate eutectic salt[D]. Guangzhou:South China University of Technology, 2017.
[23]冷从斌,季旭,罗熙,等.膨胀石墨/八水氢氧化钡复合定型相变材料的制备与储热性能研究[J].功能材料, 2016, 47(3):3247-3252.LENG Congbin, JI Xu, LUO Xi, et al. Preparation and heat storage properties of expanded graphite/octahydrate barium hydroxide composite shaped phase change materials[J]. Journal of Functional Materials, 2016, 47(3):3247-3252.
[24]张永辉.五水硫代硫酸钠/海泡石复合相变储热材料的制备与性能测试[D].西安:西北大学,2017.ZHANG Yonghui. Preparation and performance test of sodium thiosulfate/sepiolite composite phase change heat storage material[D].Xi'an:Northwest University, 2017.
[25]李艳,聂光华.五水硫代硫酸钠在防止CPU瞬时过热中的应用研究[J].电脑知识与技术, 2006(11):150-151.LI Yan, NIE Guanghua. Application of sodium thiosulfate pentahydrate in preventing transient overheating of CPU[J]. Computer Knowledge and Technology, 2006(11):150-151.
[26]倪睿嘉,倪卓.五水硫代硫酸钠/碳纳米管复合材料的制备及其表征[J].黑龙江科学, 2017, 8(2):10-12, 15.NI Ruijia, NI Zhuo. Preparation and characterization of sodium thiosulfate/carbon nanotube composites[J]. Heilongjiang Science,2017, 8(2):10-12, 15.
[27]李海丽,季旭,冷从斌,等.膨胀石墨/五水硫代硫酸钠相变储能复合材料热性能[J].复合材料学报, 2016, 33(12):2941-2951.LI Haili, JI Xu, LENG Congbin, et al. Thermal properties of expanded graphite/sodium thiosulfate phase change energy storage composites[J].Journal of Composite Materials, 2016, 33(12):2941-2951.
[2]周孙希,章学来,刘升,等.癸醇-棕榈酸/膨胀石墨低温复合相变材料的制备与性能[J].化工学报, 2019, 70(1):290-297.ZHOU Sunxi, ZHANG Xuelai, LIU Sheng, et al. Preparation and properties of low temperature composite phase change materials of sterol-palmitic acid/expanded graphite[J].CIESC Journal, 2019, 70(1):290-297.
[3]何媚质,杨鲁伟,张振涛.有机-无机复合相变材料的研究进展[J].化工进展, 2018, 37(12):4709-4718.HE Meizhi, YANG Luwei, ZHANG Zhentao. Research progress of organic-inorganic composite phase change materials[J]. Chemical Industry and Engineering Progress, 2018, 37(12):4709-4718.
[4]纪珺,刘宇飞,任迎蕾,等. Ba(OH)2·8H2O复合相变材料及其在太阳能光伏/热集热器上的释热特性[J].化工学报, 2017, 68(8):2985-2990.JI Jun, LIU Yufei, REN Yinglei, et al. Ba(OH)2·8H2O composite phase change material and its heat release characteristics on solar photovoltaic/thermal collectors[J]. Journal of Chemical Industry and Engineering, 2017, 68(8):2985-2990.
[5]李玉洋,章学来,徐笑锋,等.正辛酸-肉豆蔻酸低温相变材料的制备和循环性能[J].化工进展, 2018, 37(2):689-693.LI Yuyang, ZHANG Xuelai, XU Xiaofeng, et al. Preparation and cycling properties of n-octanoic acid-myristic acid low temperature phase change materials[J]. Chemical Industry and Engineering Progress, 2018, 37(2):689-693.
[6]沈澄,徐玲玲,李文浩.相变储能材料在建筑节能领域的研究进展[J].材料导报, 2015, 29(5):100-104.SHEN Cheng, XU Lingling, LI Wenhao. Research progress of phase change energy storage materials in building energy efficiency[J].Materials Review, 2015, 29(5):100-104.
[7]顾晓滨,秦善,牛菁菁.相变储能矿物材料研究现状及其展望[J].矿物岩石地球化学通报, 2014, 33(6):932-940.GU Xiaobin, QIN Shan, NIU Jingjing. Research status and prospects of phase change energy storage mineral materials[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2014, 33(6):932-940.
[8]江叶帆,左清.建筑节能中应用相变材料的意义分析与阐释[J].江西建材, 2017(11):13-14.JIANG Yefan, ZUO Qing. Analysis and interpretation of the application of phase change materials in building energy saving[J].Jiangxi Building Materials, 2017(11):13-14.
[9]韩兴超,章学来,华维三,等.建筑用太阳能光热相变储能瓦片设计[J].可再生能源, 2018, 36(3):359-364.HAN Xingchao, ZHANG Xuelai, HUA Weisan, et al. Design of solar energy photothermal phase change energy storage tiles for buildings[J].Renewable Energy, 2018, 36(3):359-364.
[10]任丽辉,赵学工,高树成.基于相变材料和空调制冷的组合式准低温储粮技术应用研究[J].粮食与饲料工业, 2017(3):12-15.REN Lihui, ZHAO Xuegong, GAO Shucheng. Application research of combined quasi-low temperature storage grain technology based on phase change materials and air conditioning refrigeration[J]. Cereal and Feed Industry, 2017(3):12-15.
[11]徐笑锋,章学来,李玉洋,等.十水硫酸钠相变蓄冷保温箱保冷特性的试验研究[J].农业工程学报, 2017, 33(22):308-314.XU Xiaofeng, ZHANG Xuelai, LI Yuyang, et al. Experimental study on cold retention characteristics of sodium sulfate sodium phase change storage cold storage incubator[J]. Transactions of the Chinese Society of Agricultural Engineering, 2017, 33(22):308-314.
[12]黄艳,章学来.蓄冷技术在食品冷链物流中的研究进展[J].包装工程, 2015, 36(15):23-29.HUANG Yan, ZHANG Xuelai. Research progress of cool storage technology in food cold chain logistics[J]. Packaging Engineering,2015, 36(15):23-29.
[13]彭犇,岳昌盛,邱桂博,等.相变储能材料的最新研究进展与应用[J].材料导报, 2018, 32(s1):248-252.PENG Ben, YUE Changsheng, QIU Guibo, et al. The latest research progress and application of phase change energy storage materials[J].Materials Review, 2018, 32(s1):248-252.
[14]郑涛杰,陈志莉,刘强,等.水合盐相变储能材料的增稠剂优选研究[J].太阳能学报, 2018, 39(7):1781-1787.ZHENG Taojie, CHEN Zhili, LIU Qiang, et al. Study on the thickener optimization of hydrated salt phase change energy storage materials[J].Acta Energiae Solaris Sinica, 2018, 39(7):1781-1787.
[15]铁生年,蒋自鹏.相变储能材料在温室大棚中应用研究进展[J].硅酸盐通报, 2015, 34(7):1933-1940.TIE Shengnian, JIANG Zipeng. Research progress of phase change energy storage materials in greenhouses[J]. Silicate Bulletin, 2015, 34(7):1933-1940.
[16]刘宝新,袁沐.集装箱船军事应用价值分析[J].集装箱化, 2018, 29(5):8-11.LIU Baoxin, YUAN Mu. Analysis of military application value of container ships[J]. Containerization, 2018, 29(5):8-11.
[17]高学农,刘欣,孙滔,等.基于复合相变材料的电子芯片热管理性能研究[J].高校化学工程学报, 2013, 27(2):187-192.GAO Xuenong, LIU Xin, SUN Tao, et al. Study on thermal management performance of electronic chip based on composite phase change materials[J]. Journal of Chemical Engineering of Chinese Universities, 2013, 27(2):187-192.
[18]李靖,谢如鹤,刘广海.冷藏运输用新型低温相变材料及装备的研制[J].制冷学报, 2018, 39(4):32-37.LI Jing, XIE Ruhe, LIU Guanghai. Development of new low temperature phase change materials and equipment for cold storage[J].Journal of Refrigeration, 2018, 39(4):32-37.
[19] JIN X, ZHANU S I, MEDINA M A, et al. Experimental study of the cooling process of partially-melted sodium acetate trihydrate[J].Energy and Buildings, 2014, 76:654-660.
[20]李凤艳,王鹏,袁亚东,等.相变温度为室温的Na2SO4·10H2O相变储热材料的制备研究[J].合成材料老化与应用, 2015, 44(1):39-41, 46.LI Fengyan, WANG Peng, YUAN Yadong, et al.Preparation of Na2SO4·10H2O phase change thermal storage material with phase transition temperature at room temperature[J]. Aging and Application of Synthetic Materials, 2015, 44(1):39-41, 46.
[21]纪珺,曾涛,章学来,等.改良六水氯化钙相变材料的制备及性能[J].低温与超导, 2017, 45(10):71-76.JI Jun, ZENG Tao, ZHANG Xuelai, et al. Preparation and properties of modified calcium chloride phase change materials[J]. Cryo and Supercond, 2017, 45(10):71-76.
[22]王会春.含六水氯化镁-六水硝酸镁共晶盐的复合相变材料制备及其热特性[D].广州:华南理工大学, 2017.WANG Huichun. Preparation and thermal properties of composite phase change materials containing magnesium chloride hexahydratemagnesium nitrate hexahydrate eutectic salt[D]. Guangzhou:South China University of Technology, 2017.
[23]冷从斌,季旭,罗熙,等.膨胀石墨/八水氢氧化钡复合定型相变材料的制备与储热性能研究[J].功能材料, 2016, 47(3):3247-3252.LENG Congbin, JI Xu, LUO Xi, et al. Preparation and heat storage properties of expanded graphite/octahydrate barium hydroxide composite shaped phase change materials[J]. Journal of Functional Materials, 2016, 47(3):3247-3252.
[24]张永辉.五水硫代硫酸钠/海泡石复合相变储热材料的制备与性能测试[D].西安:西北大学,2017.ZHANG Yonghui. Preparation and performance test of sodium thiosulfate/sepiolite composite phase change heat storage material[D].Xi'an:Northwest University, 2017.
[25]李艳,聂光华.五水硫代硫酸钠在防止CPU瞬时过热中的应用研究[J].电脑知识与技术, 2006(11):150-151.LI Yan, NIE Guanghua. Application of sodium thiosulfate pentahydrate in preventing transient overheating of CPU[J]. Computer Knowledge and Technology, 2006(11):150-151.
[26]倪睿嘉,倪卓.五水硫代硫酸钠/碳纳米管复合材料的制备及其表征[J].黑龙江科学, 2017, 8(2):10-12, 15.NI Ruijia, NI Zhuo. Preparation and characterization of sodium thiosulfate/carbon nanotube composites[J]. Heilongjiang Science,2017, 8(2):10-12, 15.
[27]李海丽,季旭,冷从斌,等.膨胀石墨/五水硫代硫酸钠相变储能复合材料热性能[J].复合材料学报, 2016, 33(12):2941-2951.LI Haili, JI Xu, LENG Congbin, et al. Thermal properties of expanded graphite/sodium thiosulfate phase change energy storage composites[J].Journal of Composite Materials, 2016, 33(12):2941-2951.