PREPARATION AND THERMOPHYSICAL PROPERTIES OF PARAFFIN-BASED PHASE CHANGE ENERGY STORAGE MATERIALS BY EMULSION POLYMERIZATION

Lyu Xifeng; Bai Jin'gang; Shi Chunhui; Wang Yazhou; Liu Yu; Liang Pengju

doi:10.19912/j.0254-0096.tynxb.2022-0631

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (11) : 392-398. DOI: 10.19912/j.0254-0096.tynxb.2022-0631

PREPARATION AND THERMOPHYSICAL PROPERTIES OF PARAFFIN-BASED PHASE CHANGE ENERGY STORAGE MATERIALS BY EMULSION POLYMERIZATION

Lyu Xifeng^1~3, Bai Jin'gang², Shi Chunhui¹, Wang Yazhou², Liu Yu², Liang Pengju^1,2

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Abstract

In this paper, paraffin was vacuum-impregnated in expanded vermiculite as the inner phase, and acrylamide aqueous solution was used as the outer phase to prepare an oil-in-water emulsion. The initiator polymerized the outer phase to obtain shape-stable composite phase-change heat storage particles. The test results show that when the emulsifier is 6% of the paraffin mass and the expanded vermiculite is 2% of the paraffin mass, the melting enthalpy value is 128.79 J/g, and the paraffin coating rate is 72.80%. The shape of the composite particles is regular in the surface. The particles are spherical and uniform in size. After 100 cycles, the melting enthalpy only decreases by 2.18%. The composite particles have good thermal stability below 470 ℃. The secondary encapsulation of paraffin by expanded vermiculite and polyacrylamide effectively improves the anti-leakage capability of the composite system, and has reliable energy storage and temperature regulation performance.

Key words

emulsion polymerization / phase change heat storage / organic-inorganic compounding / solar storage

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Lyu Xifeng, Bai Jin'gang, Shi Chunhui, Wang Yazhou, Liu Yu, Liang Pengju. PREPARATION AND THERMOPHYSICAL PROPERTIES OF PARAFFIN-BASED PHASE CHANGE ENERGY STORAGE MATERIALS BY EMULSION POLYMERIZATION[J]. Acta Energiae Solaris Sinica. 2022, 43(11): 392-398 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0631

References

[1] 张文毓. 相变储能材料的研究与应用[J]. 精细石油化工进展, 2020, 21(4): 37-42.
ZHANG W Y.Research and application of phase change energy storage materials[J]. Progress in fine petrochemicals, 2020, 21(4): 37-42.
[2] 罗凯, 叶伟梁, 王艳, 等. 太阳能生活热水系统相变储能研究进展[J]. 太阳能学报, 2022, 43(5): 220-229.
LUO K, YE W L, WANG Y, et al.Research progress of phase change energy storage in solar domestic hot water system[J]. Acta energiae solaris sinica, 2022, 43(5): 220-229.
[3] WEI H T, YANG S Y, WANG C P, et al.Novel and durable composite phase change thermal energy storage materials with controllable melting temperature[J]. Journal of materials science & technology, 2021, 86: 11-19.
[4] FU W C, YAN X, GURUMUKHI Y, et al.High power and energy density dynamic phase change materials using pressureenhanced close contact melting[J]. Nature energy, 2022, 7, 270-280.
[5] 陈淑琴, 朱毅攀, 谢静超, 等. 相变材料在南方塑料大棚中的冬季使用策略及效果研究[J]. 太阳能学报, 2020, 41(11): 205-211.
CHEN S Q, ZHU Y P, XIE J C, et al.Study on winter application strategy and effect of phase change material in southern plastic greenhouse[J]. Acta energiae solaris sinica, 2020, 41(11): 205-211.
[6] 余海. 太阳能利用综述及提高其利用率的途径[J]. 能源研究与利用, 2004(3): 34-37.
YU H.Overview of solar energy utilization and ways to improve its utilization rate[J]. Energy research & utilization, 2004(3): 34-37.
[7] XU B, MA H, LU Z, et al.Paraffin/expanded vermiculite composite phase change material as aggregate for developing lightweight thermal energy storage cement-based composites[J]. Applied energy, 2015, 160: 358-367.
[8] DENG Y, LI J H, QIAN T T, et al.Thermal conductivity enhancement of polyethylene glycol/expanded vermiculite shape-stabilized composite phase change materials with silver nanowire for thermal energy storage[J]. Chemical engineering journal, 2016, 295: 427-435.
[9] 刘猛, 封金鹏, 符林总, 等. 蛭石功能化应用研究新进展[J]. 矿产综合利用, 2021(1): 14-22.
LIU M, FENG J P, FU L Z, et al.New progress in the research on functional application of vermiculite[J]. Comprehensive utilization of minerals, 2021(1): 14-22.
[10] CHUNG O, JEONG S G, KIM S.Preparation of energy efficient paraffinic PCMs/expanded vermiculite and perlite composites for energy saving in buildings[J]. Solar energy materials and solar cells, 2015, 137: 107-112.
[11] LIU M Y, XU Y F, ZHANG X G, et al.Preparation and characterization of composite phase change materials based on lauric-myristic acid and expanded vermiculite with carbon layer[J]. Chemistry select, 2021, 6(16): 3884-3890.
[12] SONG S, YANG Z W, LI J H, et al.Analysis and optimization of thermophysical properties and phase change behavior of expanded vermiculite-based organic composite phase change materials[J]. Energy & fuels, 2021, 35(3): 2727-2741.
[13] WANG H, LEI J, WU T F, et al.Effect of boron nitride on the heat transfer and heat storage of poly (ethylene glycol)/expanded vermiculite composite phase-change materials[J]. ACS omega, 2022, 7(2): 2438-2433.
[14] 王春凤. 膨胀蛭石复合相变水泥板热性能研究[J]. 河南水利与南水北调, 2019, 48(6): 53-55.
WANG C F.Study on thermal properties of expanded vermiculite composite phase change cement board[J]. Henan water conservancy and south-to-north water transfer, 2019, 48(6): 53-55.
[15] 刘云, 孔祥飞, 戎贤, 等. 被动式围护结构相变板材的制备及性能研究[J]. 新型建筑材料, 2018, 45(4): 27-30.
LIU Y, KONG X F, RONG X, et al.Preparation and properties of phase change sheets for passive enclosures[J]. New building materials, 2018, 45(4): 27-30.
[16] SIPPONEN M H, HENN A, PENTTILÄ P, et al.Lignin-fatty acid hybrid nanocapsules for scalable thermal energy storage in phase-change materials[J]. Chemical engineering journal, 2020, 393: 124711.
[17] 胡大为, 胡小芳, 林丽莹. 相变微囊复合建材制备及储放热研究[J]. 建筑材料学报, 2007(6): 664-670.
HU D W, HU X F, LIN L Y.Preparation of phase transition microcapsule compound building material and heat storage/release research[J]. Journal of building materials, 2007(6): 664-670.
[18] 赵顺. 有机无机复合相变储能材料的制备及性能研究[D]. 北京: 北京化工大学, 2020.
ZHAO S.Preparation and properties of organic-inorganic composite phase change energy storage materials[D]. Beijing: Beijing University of Chemical Technology, 2020.
[19] 陈旭, 王瑞. 乳液聚合法制备石墨烯改性MUF/石蜡相变材料微胶囊[J]. 成都纺织高等专科学校学报, 2017, 34(2): 11-16.
CHEN X, WANG R.Preparation of graphene-modified MUF/paraffin phase change material microcapsules by emulsion polymerization[J]. Journal of Chengdu Textile College, 2017, 34(2): 11-16.
[20] 周升平,曾晟. 太阳能建筑用石蜡/CNTs相变乳液的制备及光-热性能研究[J]. 化工新型材料, 2021, 49(3): 113-121.
ZHOU S P, ZENG S.Preparation and photo thermal properties of paraffin/CNTs phase change emulsion for solar architecture[J]. New chemical materials, 2021, 49(3): 113-121.