Phase change heat storage properties of PEG/SiO2 shape-stabilized phase change materials in asphalt

doi:10.16085/j.issn.1000-6613.2017-1130

Abstract

Abstract: Considering the excellent adsorptive performance of porous silica,we prepared the polyethylene glycol/silicon dioxide shape-stabilized phase change materials(PEG/SiO₂ SSPCM) by impregnating different amounts of polyethylene glycol into the pore structure of silicon dioxide gel. And asphalt-shape-stabilized phase change materials blends(Asphalt-SSPCM) with different amounts of polyethylene glycol were prepared by the melt blending method. The pore structure of silicon dioxide and morphology of PEG/SiO₂ SSPCM were characterized by using porosity analyzing instrument and scanning electron microscope(SEM). The crystal structure,chemical compatibility,heat storage property and heat stability of PEG/SiO₂ SSPCM in asphalt were studied by X-ray powder diffraction(XRD),Fourier transforming infrared spectrum(FTIR) and synthesized thermal analyzer (DSC/TG). The results showed that silicon dioxide had porous microstructure with high surface area,which can absorb polyethylene glycol. Polyethylene glycol crystals still existed in the Asphalt-SSPCM,and the heat storage ability of the Asphalt-SSPCM increased with increasing the polyethylene glycol amount in the blends. The enthalpy of the blends was 117.5J/g with 76.1% polyethylene glycol,and the blends with different amounts of polyethylene glycol all showed favorable heat stability and cooling effect,but there was only physical interaction between Asphalt-SSPCM. Moreover,the heat storage principle of Asphalt-SSPCM was analyzed based on the phase change theory.

Key words: shape-stabilized phase change materials, asphalt, polyethylene glycol, heat storage property

摘要： 利用多孔二氧化硅的良好吸附性，将不同计量的聚乙二醇在硅溶胶胶凝过程中吸附于硅凝胶的孔隙结构中制备聚乙二醇/二氧化硅定形相变材料（PEG/SiO₂ SSPCM）；并将其与熔融沥青共混获得不同聚乙二醇含量的沥青-定形相变材料（Asphalt-SSPCM）。借助孔径分析仪和扫描电镜（SEM）表征了载体二氧化硅孔结构和PEG/SiO₂ SSPCM的表观形貌；通过X射线衍射仪（XRD）、综合热分析仪（DSC/TG）和傅里叶红外光谱仪（FTIR）考察了沥青中PEG/SiO₂ SSPCM的晶体结构、储热性能、热稳定性及化学兼容性；通过本文作者课题组研发的温度模拟试验箱测试了Asphalt-SSPCM的降温效果。结果表明，二氧化硅凝胶具有丰富的孔结构并能将聚乙二醇吸附于其介孔结构中；沥青中PEG/SiO₂ SSPCM仍含有聚乙二醇晶体，其储热能力随聚乙二醇含量的增加而增大，当聚乙二醇含量为76.1%时，相变焓高达117.5J/g，且不同聚乙二醇含量的沥青-定形相变材料均表现出良好的热稳定性；PEG/SiO₂ SSPCM与沥青的化学兼容性良好，二者之间仅是物理作用；Asphalt-SSPCM的降温效果显著，可有效改善沥青路面的高温性能；并基于相变理论，分析了沥青-定形相变材料的相变储热原理。

关键词: 定形相变材料, 沥青, 聚乙二醇, 储热性能

CLC Number:

TU502

HE Lihong, WANG Hao, YANG Fan, ZHU Hongzhou, TANG Boming. Phase change heat storage properties of PEG/SiO₂ shape-stabilized phase change materials in asphalt[J]. Chemical Industry and Engineering Progress, 2018, 37(03): 1076-1083.

何丽红, 王浩, 杨帆, 朱洪洲, 唐伯明. 聚乙二醇/SiO₂定形相变材料在沥青中的相变储热性能[J]. 化工进展, 2018, 37(03): 1076-1083.

References

[1] 方玉堂,康慧英,张正国,等. 聚乙二醇相变储能材料研究进展[J]. 化工进展,2007,26(8):1063-1067. FANG Y T,KANG H Y,ZHANG Z G,et al. Review of polyethylene glycol for energy storage[J]. Chemical Industry and Engineering Progress,2007,26(8):1063-1067.
[2] 张仁元. 相变材料与相变储能技术[M]. 北京:科学出版社,2009. ZHANG R Y. Phase change materials and phase change energy storage technology[M]. Bejing:Science Press,2009.
[3] 胡曙光,李潜,黄绍龙,等. 相变材料聚乙二醇应用于沥青混合料可行性的研究[J]. 公路,2009(7):291-295. HU S G,LI Q,HUANG S L,et al. Feasibility study on phase change material-polyethylene glycol used in asphalt mixture[J]. Highway,2009(7):291-295.
[4] 马骉,王晓曼,李超,等. 相变材料在沥青混凝土路面中的应用前景分析[J]. 公路,2009(12):115-118. MA B,WANG X M,LI C,et al. Analysis of application prospect of phase change materials in asphalt concrete pavement[J]. Highway,2009(12):115-118.
[5] 张一博,朱洪洲,李菁若,等. 储热降温沥青路面用相变材料的选择[J]. 郑州大学学报(工学版),2012,33(3):10-14. ZHANG Y B,ZHU H Z,LI Q R,et al. Selection of phase change materials used in heat storage cooling asphalt pavement[J]. Journal of Zhengzhou University(Engineering Science),2012,33(3):10-14.
[6] 曹长斌,罗阳明,李文虎,等. 聚乙二醇对沥青及其混合料储热性能的影响[J]. 化工新型材料,2013,41(4):137-139. CAO C B,LUO Y M,LI W H,et al. Effect of polyethylene glycol on the heat storage performance of asphalt and asphalt mixture[J]. New Chemical Materials,2013,41(4):137-139.
[7] LI Chao,MA Biao,WANG Xiaoman. Experimental study on self-adjustable temperature asphalt mixture[C]//Proceedings of International Workshop on Energy and Environment in the Development of Sustainable Asphalt Pavements. Xi'an:Xi'an Jiaotong University Press,2010:65.
[8] MA B,WANG S S,LI J. Study on application of PCM in asphalt mixture[J]. Advanced Materials Research,2011,168/169/170:2625-2630.
[9] CHEN M Z,HONG J,WU S P,et al. Optimization of phase change materials used in asphalt pavement to prevent rutting[J]. Advanced Materials Research,2011,219/220:1375-1378.
[10] CHEN M Z,WAN L,WU S P,Effect of phase change material on temperature susceptibility of asphalt[C]//Proceedings of the International Conference on Heterogeneous Material Mechanics. 3rd. Shanghai,China,2011:576.
[11] CHEN M Z,XU G J,WU S P,et al. Preliminary study on asphalt mortar containing shaped-stabled phase change material[J]. Advanced Materials Research,2011,306/307:1702-1706.
[12] COCU X,NICAISE D,RACHIDI S. The use of phase change materials to delay pavement freezing[C]//ⅩⅢ International Winter Road Congress,PIARC,2010.
[13] LI J,HE L,LIU T,et al. Preparation and characterization of PEG/SiO₂ composites as shape-stabilized phase change materials for thermal energy storage[J]. Solar Energy Materials & Solar Cells,2013,118(11):48-53.
[14] HE L,LI J,ZHOU C,et al. Phase change characteristics of shape-stabilized PEG/SiO₂,composites using calcium chloride-assisted and temperature-assisted sol gel methods[J]. Solar Energy,2014,103(6):448-455.
[15] 曹长斌,罗阳明,何丽红,等. 阳光照射路面温度模拟试验箱:201487958.3[P]. 2015-01-07. CAO C B,LUO M Y,HE L H,et al. Sun exposure pavement temperature simulation test box:201487958.3[P]. 2015-01-07.
[16] WANG W,YANG X,FANG Y,et al. Preparation and performance of form-stable polyethylene glycol/silicon dioxide composites as solid-liquid phase change materials[J]. Applied Energy,2009,86(2):170-174.
[17] 王维龙,康慧英,杨晓西,等. 聚乙二醇/二氧化硅复合相变蓄热材料的性能研究[J]. 功能材料,2007,38(10):1652-1654. WANG W L,KANG H Y,YANG X X,et al. Study on polyethylene glycol/silicon dioxide composite phase change thermal energy storage material[J]. Journal of Functional Materials,2007,38(10):1652-1654.
[18] YANG H,FENG L,WANG C,et al. Confinement effect of SiO₂ framework on phase change of PEG in shape-stabilized PEG/SiO₂composites[J]. European Polymer Journal,2012,48(4):803-810.
[19] 何丽红. 复合相变储热沥青路面材料研制及降温机理[D]. 重庆:重庆交通大学,2016. HE L H. Development and cooling mechanism of composite phase change heat storage material in asphalt pavement[D]. Chongqing:Chongqing Jiaotong University,2016

Phase change heat storage properties of PEG/SiO₂ shape-stabilized phase change materials in asphalt

聚乙二醇/SiO₂定形相变材料在沥青中的相变储热性能

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	LIAO Zhixin, LUO Tao, WANG Hong, KONG Jiajun, SHEN Haiping, GUAN Cuishi, WANG Cuihong, SHE Yucheng. Application and progress of solvent deasphalting technology [J]. Chemical Industry and Engineering Progress, 2023, 42(9): 4573-4586.
[2]	TAN Lipeng, SHEN Jun, WANG Yugao, LIU Gang, XU Qingbai. Research progress on blending modification of coal tar pitch and petroleum asphalt [J]. Chemical Industry and Engineering Progress, 2023, 42(7): 3749-3759.
[3]	ZHAO Yi, YANG Zhen, ZHANG Xinwei, WANG Gang, YANG Xuan. Molecular simulation of self-healing behavior of asphalt under different crack damage and healing temperature [J]. Chemical Industry and Engineering Progress, 2023, 42(6): 3147-3156.
[4]	ZHAO Yi, YANG Zhen, WANG Jia, LI Jingwen, ZHENG Yu. Research progress on molecular dynamics simulation of self-healing behavior of asphalt binder [J]. Chemical Industry and Engineering Progress, 2023, 42(2): 803-813.
[5]	LI Jingjing, ZHAO Yao, XU Fengchi, LI Kangjian. Heavy metal leaching characteristics of porous asphalt mixture containing MSWI-BAA under different stormwater runoff flow rates [J]. Chemical Industry and Engineering Progress, 2023, 42(10): 5520-5530.
[6]	LI Hao, GUO Rongxin, YAN Yong. Low temperature performance of high modulus asphalt binder and mixtures: a review [J]. Chemical Industry and Engineering Progress, 2022, 41(S1): 351-365.
[7]	ZHANG Xincheng, HE Lin, SUI Hong, LI Xingang. Demulsification process and enhancement by viscosity reduction for water-in-heavy oil emulsions [J]. Chemical Industry and Engineering Progress, 2022, 41(7): 3534-3544.
[8]	LIU Jing, ZHENG Xinguo, LI Tiejun, WANG Caiping, ZHAO Yanxu, LI Ying, LOU Liangwei, SHEN Wei. Mechanical properties and micromorphology of redispersible emulsified asphalt powder modified cement mortar [J]. Chemical Industry and Engineering Progress, 2022, 41(4): 2015-2021.
[9]	ZHANG Xueying, MA Jun, HE Lin, SUI Hong, LI Xingang. Molecular structure of interfacially active asphaltene in asphalt rock and its adsorption characteristics on mineral surface [J]. Chemical Industry and Engineering Progress, 2022, 41(2): 628-636.
[10]	DING Jiaying, XUE Yongbing, LIU Zhenmin, LI Tao, CHU Yifan. Research progress of environmentally asphalt [J]. Chemical Industry and Engineering Progress, 2021, 40(S2): 226-231.
[11]	YU Yang, LIU Qi, PENG Bo, LYU Jing. A review of the biodegradation of asphaltene in heavy oil [J]. Chemical Industry and Engineering Progress, 2021, 40(3): 1574-1585.
[12]	Long ZHANG, Xiangchen FANG, Jinxiang GAI, Ping JIN, Xinqi HOU, Shuhua LIU. Raw material selection and evaluation of high-grade road asphalt produced by Tahe crude oil [J]. Chemical Industry and Engineering Progress, 2020, 39(9): 3643-3649.
[13]	Jiaojiao SONG,Zisheng ZHANG,Hong SUI,Lin HE,Xingang LI. Effect of oil sand asphaltenes on toluene residue in oil sands bitumen [J]. Chemical Industry and Engineering Progress, 2020, 39(1): 65-71.
[14]	LI Aiying, ZHANG Wenxiu, SHU Fuchang, LI Lun, LI Meng, LEI Bin. Properties of asphaltene in BA crude oil and mechanism of deposition inhibitor [J]. Chemical Industry and Engineering Progress, 2019, 38(s1): 110-115.
[15]	Wen ZHANG, Jun LONG, Qiang REN, Xinheng CAI. Research progress on aggregation behavior of asphaltene [J]. Chemical Industry and Engineering Progress, 2019, 38(05): 2158-2163.