聚乙烯醇(PVA)及其复合材料以无毒、良好的溶解性和可生物降解等优点而备受关注,已广泛应用于航空航天、环境和建筑工程领域。PVA气凝胶将PVA的优势特点与气凝胶本身的比表面积大、高孔隙率、低密度、低热导率等优异性能有效地结合起来,具有广阔的应用前景。主要总结了近年来PVA气凝胶在阻燃、吸附等方面的改性研究及应用探索,分析了PVA气凝胶存在的主要问题,并对其未来发展进行了展望。
Polyvinyl alcohol (PVA) and its composites have attracted much attention due to their non-toxic,good solubility and biodegradability.They have been widely used in aerospace,environment and construction engineering fields.PVA aerogels effectively combine the advantages of PVA with the excellent properties of aerogels such as large specific surface area,high porosity,low density,and low thermal conductivity,making PVA aerogels have broad application prospects.The modification research and application exploration of PVA aerogel in flame retardant and adsorption in recent years were mainly summarized,and analyzed the main problems of PVA aerogel and made a prospect for the future of PVA aerogel.
[1] 吴李国.PVA纤维的应用现状及进展[J].现代纺织技术,2001(4):52-54.
[2] 魏绍东,汪毛平,柳巨澜.电石乙炔法工业生产聚乙烯醇的现状与展望[J].化工科技市场,2007,30(3):23-26.
[3] 雷春堂,潘晓勇,姚国红,等.水溶性聚乙烯醇的研究进展[J].塑料工业,2011,39(2):10-13.
[4] Chiellini E,Corti A,D'Antone S,et al.Biodegradation of poly(vinyl alcohol) based materials[J].Progress in Polymer Science,2003,28(6):963-1014.
[5] 刘元虎.聚乙烯醇工业技术进展及展望[J].维纶通讯,2009(2):16-21.
[6] 王凤森.聚乙烯醇粘结剂[J].国外耐火材料,1998,23(11):6-11.
[7] Das A K,Bhowmi R N,Meikap A K.Effect of trap states and microstructure on charge carrier conduction mechanism through semicrystallinepoly(vinyl alcohol) granular film[J].Solid State Communications,2018,273:50-54.
[8] 白瑜平,杨荣杰,李建民,等.PVA-PAA/IPN水凝胶的制备及其溶胀性能研究[J].高分子材料科学与工程,2002,18(1):98-101.
[9] 闫尔云,郝小原,刘中贤,等.PVA/CS水凝胶的制备与性能研究[J].齐齐哈尔大学学(自然科学版),2015,31(2):1-4.
[10] Sun H,Schiraldi D A,Chen D Y,et al.Tough polymer aerogels incorporating a conformal inorganic coating for low flammability and durable hydrophobicity[J].ACS Applied Materials & Interfaces,2016,8(20):13051-13057.
[11] Kim H M,Noh Y J,Yu J,et al.Silica aerogel/polyvinyl alcohol (PVA) insulation composites with preserved aerogel pores using interfaces between the superhydrophobic aerogel and hydrophilic PVA solution[J].Composites Part A,2015,75:39-45.
[12] Pierre A C,Pajonk G M.Chemistry of aerogels and their applications[J].Chemical Reviews,2002,102(11):4243-4265.
[13] Sun H,Xu Z,Gao C,et al.Multifunctional,ultra-flyweight.synergistically assembled carbon aerogels[J].Advanced Materials,2013,25(18):2554-2560.
[14] Smirnova I,Suttirueng W S,Arlt W.Feasibility study of hydrophilic and hydrophobic silica aerogels as drug delivery systems[J].Journal of Non-Crystalline Solids,2004,350:54-60.
[15] 卢斌,孙俊艳,宋淼,等.常压干燥法制备TiO2气凝胶[J].复合材料学报,2012,3:127-133.
[16] Chen H B,Wang Y Z,Schiraldi D A.Preparation and flammability of poly(vinyl alcohol) composite aerogels[J].ACS Applied Materials & Interfaces,2014,6(9):6790-6796.
[17] Shang K,Ye D D,Kang A H,et al.Robust and fire retardant borate-crosslinked poly (vinyl alcohol)/montmorillonite aerogel via melt-crosslink[J].Polymer,2017,131:111-119.
[18] 刘洪丽,李晓辉,安国庆,等.硅藻土/聚乙烯醇气凝胶复合保温材料的制备及性能研究.工业技术,2018,10:72-76.
[19] Nabipour H,Nie S B,Wang X,et al.Zeoliticimidazolateframework-8/polyvinyl alcohol hybrid aerogels with excellent flame retardancy[J].Composites Part A,2020,129(105):720-729.
[20] 王振有,刘会娥,朱佳梦,等,于安然.乳液法制备聚乙烯醇-石墨烯气凝胶及其对纯有机物的吸附[J].化工学报,2019,3:1152-1162.
[21] Dai J,Huang T,Tian S Q,et al.High structure stability and outstanding adsorption performance of graphene oxide aerogel supported by polyvinyl alcohol for waste water treatment[J].Materials & Design,2016,107:187-197.
[22] Gong X Y,Wang Y X,Zeng H B,et al.Highly porous,hydrophobic,and compressible cellulose nanocrystals/poly(vinyl alcohol) aerogels as recyclable absorbents for oil-water separation[J].ACS Sustainable Chemistry and Engineering,2019,7(13):11118-11128.
[23] Arabkhani P,Arabkhani A.Development of a novel three-dimensional magnetic polymer aerogel as an efficient adsorbent for malachite green removal[J].Journal of Hazardous Materials,2020,384:121394-121404.
[24] 王静,王清清,魏取福.黄机质.PVA-SbQ/细菌纤维素复合气凝胶的制备及吸油性能研究[J].功能材料,2016,47(3):3007-3010.
[25] Thai Q B,Siang T E,Le D K,et al.Advanced fabrication and multi-properties of rubber aerogels from car tire waste[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2019,577:702-708.
[26] Simón-Herrero C,Peco N,Romero A,et al.PVA/nanoclay/graphene oxide aerogels with enhanced sound absorption properties[J].Applied Acoustics,2019,156:40-45.
基金资助
四川省教育厅高校创新团队(16TD0009);西南石油大学大学生开放实验重点项目(KSZ19519)
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