新材料与新技术

聚甲基丙烯酸甲酯-氧化锌包覆正十四醇多功能相变微胶囊的制备及表征

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  • 广东省石墨烯类功能及高性能材料与制品(器件)工程技术研究中心,暨南大学化学与材料学院化学系,广州510632
钟晴(1995-),女,硕士研究生,研究方向为多功能复合杂化材料。

收稿日期: 2019-08-13

  修回日期: 2020-08-21

  网络出版日期: 2021-01-21

基金资助

国家自然科学基金(21676116,51872124)

Fabrication and characterization of multifunctional microcapsules with TDA core and PMMA-ZnO composite shell

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  • Guangdong Engineering & Technology Research Centre of Graphene-Like Materials and Products,Department of Chemistry,College of Chemistry and Materials Science,Jinan University,Guangzhou 510632

Received date: 2019-08-13

  Revised date: 2020-08-21

  Online published: 2021-01-21

摘要

以苯乙烯-马来酸酐共聚物(SMA)为乳化剂,聚甲基丙烯酸甲酯-氧化锌(PMMA-ZnO)复合材料为壁材、正十四醇(TDA)为芯材,采用原位乳液聚合法制备了新型多功能微胶囊相变储能材料。实验结果表明,制备的多功能微胶囊呈粒径分布均匀的球壳结构,包裹率均超过90%,储热性能随着乙酸锌用量增加而减弱;相同条件下,其储热性能比使用常规乳化剂十二烷基硫酸钠(SDS)制备的微胶囊更好;与纯TDA相比,以SMA为乳化剂,PMMA-ZnO为壁材包覆TDA制备的多功能微胶囊热稳定性明显提高,且具有较高的相变潜热、良好的光降解性能和抗菌活性。

本文引用格式

钟晴, 龙慧, 覃晓明, 张静娴, 邓穗平, 黄浪欢, 谭绍早 . 聚甲基丙烯酸甲酯-氧化锌包覆正十四醇多功能相变微胶囊的制备及表征[J]. 化工新型材料, 2020 , 48(12) : 102 -107 . DOI: 10.19817/j.cnki.issn 1006-3536.2020.12.025

Abstract

A novel multifunctional microcapsule phase change energy storage material was prepared by in-situ emulsion polymerization with styrene-maleic anhydride copolymer (SMA) as emulsifier,polymethyl methacrylate-zinc oxide (PMMA-ZnO) composite material as wall material,t-tetradecanol (TDA) as core material.The results showed that the prepared multifunctional microcapsules had a spherical shell structure with uniform particle size distribution,and the encapsulation rate exceeded 90%.The heat storage performance decreased with the increase of zinc acetate.Under the same conditions,its heat storage performance was better than that of microcapsules prepared with conventional emulsifier sodium dodecyl sulfate (SDS).And compared with pure TDA,the microcapsules prepared with SMA as emulsifier and PMMA-ZnO as the wall material coated with TDA significantly improved the thermal stability,and had higher latent heat of phase change,good photodegradation performance and antibacterial activity.

参考文献

[1] Wang T,Wang S,Luo R,et al.Microencapsulation of phase change materials with binary cores and calcium carbonate shell for thermal energy storage[J].Applied Energy,2016,171:113-119.
[2] Tao Y B,Lin C H,He Y L.Effect of surface active agent on thermal properties of carbonate salt/carbon nanomaterial composite phase change material[J].Applied Energy,2015,156:478-489.
[3] Alva G,Lin Y,Liu L,et al.Synthesis,characterization and applications of microencapsulated phase change materials in thermal energy storage:a review[J].Energy and Buildings,2017,144:276-294.
[4] Peng H,Zhang D,Ling X,et al.N-alkanes phase change materials and their microencapsulation for thermal energy storage:a critical review[J].Energy & Fuels,2018,32(7):7262-7293.
[5] Zhao C Y,Zhang G H.Review on microencapsulated phase change materials (MEPCMs):fabrication,characterization and applications[J].Renewable and Sustainable Energy Reviews,2011,15(8):3813-3832.
[6] Jurkowska M,Szczygieł I.Review on properties of microencapsulated phase change materials slurries (mPCMS)[J].Applied Thermal Engineering,2016,98:365-373.
[7] Vasiliev L L,Burak V S,Kulakov A G,et al.Latent heat storage modules for preheating internal combustion engines:application to a bus petrol engine[J].Applied Thermal Engineering,2000,20(10):913-923.
[8] Ji X,Li G,Huang X.The synthesis of hollow CaCO3 microspheres in mixed solutions of surfactant and polymer[J].Materials Letters,2008,62(4/5):751-754.
[9] Siddhan P,Jassal M,Agrawal A K.Core content and stability of n-octadecane-containing polyurea microencapsules produced by interfacial polymerization[J].Journal of Applied Polymer Science,2007,106(2):786-792.
[10] Li F,Wang X,Wu D.Fabrication of multifunctional microcapsules containing n-eicosane core and zinc oxide shell for low-temperature energy storage,photocatalysis,and antibiosis[J].Energy Conversion and Management,2015,106:873-885.
[11] Lashgari S,Arabi H,Mahdavian A R,et al.Thermal and morphological studies on novel PCM microcapsules containing n-hexadecane as the core in a flexible shell[J].Applied Energy,2017,190:612-622.
[12] Tang F,Liu L,Alva G,et al.Synthesis and properties of microencapsulated octadecane with silica shell as shape-stabilized thermal energy storage materials[J].Solar Energy Materials and Solar Cells,2017,160:1-6.
[13] Ye X,Qin X,Yan X,et al.π-π conjugations improve the long-term antibacterial properties of graphene oxide/quaternary ammonium salt nanocomposites[J].Chemical Engineering Journal,2016,304:873-881.
[14] 石李明.可逆热致变色相变微胶囊的制备与性能研究[D].杭州:浙江大学,2012.
[15] 王其书,刘峰,孙伟贤,等.丙烯腈-甲基丙烯酸甲酯共聚物囊壁的十四醇相变微胶囊的制备与表征[J].上海交通大学学报,2014,42(12):6-9.
[16] 付志英.壳聚糖包覆水溶性药物微胶囊的制备与表征[D].广州:华南理工大学,2013.
[17] Yang J,Kong X,Jiang W,et al.Size-controllable synthesis and photocatalytic performance of ZnO hollow spheres[J].Materials Science in Semiconductor Processing,2015,40:713-719.
[18] Padmavathy N,Vijayaraghavan R.Enhanced bioactivity of ZnO nanoparticles—an antimicrobial study[J].Science and Technology of Advanced Materials,2008,9(3):35004-35010.
[19] Pang S,He Y,Zhong R,et al.Multifunctional ZnO/TiO2 nanoarray composite coating with antibacterial activity,cytocompatibility and piezoelectricity[J].Ceramics International,2019,45(10):12663-12671.
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