聚丙烯/蒙脱土和聚丙烯/石墨烯交替多层材料的结构与气体阻隔性能
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摘要
利用微层共挤出设备制备了蒙脱土填充聚丙烯和石墨烯填充聚丙烯的交替多层结构,构筑出连续的交替气体阻隔层,通过偏光显微镜、差示扫描量热仪、万能拉伸机以及压差法气体渗透仪测试研究了交替多层复合材料与普通共混材料的结构与性能的关系。结果表明,随着层数的增加,交替多层复合材料的氧气渗透系数在40℃时有了明显的下降,下降了19倍之多,气体阻隔性能显著提高,拉伸强度也有明显的提升,提高了12.3%。
Polypropylene( PP)/montmorillonite and PP/graphene alternating multilayered composites were successfully fabricated via multilayered co-extrusion technology. And continuous alternating gas barrier layer was constructed.The structure and property of the alternating multilayered composites were investigated systematically through polarizing optical microscope,differential scanning calorimetry,universal tensile test and gas permeability test. Results demonstrate that the gas barrier property under 40 ℃ and mechanical properties are improved significantly through the construction of the alternating multilayered structure,and such improvement is further enhanced with increase of the layer number. For example,the gas barrier properties increase by 19 times and the tensile strength increases by 12. 3%.
Polypropylene( PP)/montmorillonite and PP/graphene alternating multilayered composites were successfully fabricated via multilayered co-extrusion technology. And continuous alternating gas barrier layer was constructed.The structure and property of the alternating multilayered composites were investigated systematically through polarizing optical microscope,differential scanning calorimetry,universal tensile test and gas permeability test. Results demonstrate that the gas barrier property under 40 ℃ and mechanical properties are improved significantly through the construction of the alternating multilayered structure,and such improvement is further enhanced with increase of the layer number. For example,the gas barrier properties increase by 19 times and the tensile strength increases by 12. 3%.
引文
[1]Song P A,Yu Y,Zhang T,et al.Permeability,Viscoelasticity,and flammability performances and their relationship to polymer nanocomposites[J].Ind.Eng.Chem.Res.,2012,51:7255-7263.
[2]Decker J J,Meyers K P,Paul D R,et al.Polyethylene-based nanocomposites containing organoclay:a new approach to enhance gas barrier via multilayer coextrusion and interdiffusion[J].Polymer,2015,61:42-54.
[3]Khalili S,Masoomi M,Bagheri R.The effect of organo-modified montmorillonite on mechanical and barrier properties of linear lowdensity polyethylene/low-density polyethylene blend films[J].J.Plast.Film Sheet.,2012,29:39-55.
[4]Nielsen L E.Models for the permeability of filled polymer systems[J].J.Macromol.Sci.,Chem.,1967,1:929-942.
[5]Choudalakis G,Gotsis A D.Permeability of polymer/clay nanocomposites:a review[J].Eur.Polym.J.,2009,45:967-984.
[6]Cui Y,Kumar S,Kona B R,et al.Gas barrier properties of polymer/clay nanocomposites[J].RSC Adv.,2015,5:63669-63690.
[7]Bian J,Wei X W,Lin H L,et al.Retracted:PP/PP-g-MAH/layered expanded graphite oxide nanocomposites prepared via masterbatch process[J].J.Appl.Polym.Sci.,2013,128:600-610.
[8]陈凡,李姜,郭少云.交替层状PP/PPCB中β晶的形成及机理[J].高分子材料科学与工程,2013,29(9):107-109.Chen F,Li J,Guo S Y.Influence of inorganic fillers on mechanical and surface properties of blocked polyurethane/epoxy resin blend coatings[J].Polymer Materials Science&Engineering,2013,29(9):107-109.
[9]王溢,吴宏,郭少云.聚丁二酸丁二醇酯/聚乳酸交替多层复合材料的力学性能和降解行为[J].高分子材料科学与工程,2014,30(8):71-75.Wang Y,Wu H,Guo S Y.Characterization of amphiphilic polymer O/W emulsion through porous media[J].Polymer Materials Science&Engineering,2014,30(8):71-75.
[2]Decker J J,Meyers K P,Paul D R,et al.Polyethylene-based nanocomposites containing organoclay:a new approach to enhance gas barrier via multilayer coextrusion and interdiffusion[J].Polymer,2015,61:42-54.
[3]Khalili S,Masoomi M,Bagheri R.The effect of organo-modified montmorillonite on mechanical and barrier properties of linear lowdensity polyethylene/low-density polyethylene blend films[J].J.Plast.Film Sheet.,2012,29:39-55.
[4]Nielsen L E.Models for the permeability of filled polymer systems[J].J.Macromol.Sci.,Chem.,1967,1:929-942.
[5]Choudalakis G,Gotsis A D.Permeability of polymer/clay nanocomposites:a review[J].Eur.Polym.J.,2009,45:967-984.
[6]Cui Y,Kumar S,Kona B R,et al.Gas barrier properties of polymer/clay nanocomposites[J].RSC Adv.,2015,5:63669-63690.
[7]Bian J,Wei X W,Lin H L,et al.Retracted:PP/PP-g-MAH/layered expanded graphite oxide nanocomposites prepared via masterbatch process[J].J.Appl.Polym.Sci.,2013,128:600-610.
[8]陈凡,李姜,郭少云.交替层状PP/PPCB中β晶的形成及机理[J].高分子材料科学与工程,2013,29(9):107-109.Chen F,Li J,Guo S Y.Influence of inorganic fillers on mechanical and surface properties of blocked polyurethane/epoxy resin blend coatings[J].Polymer Materials Science&Engineering,2013,29(9):107-109.
[9]王溢,吴宏,郭少云.聚丁二酸丁二醇酯/聚乳酸交替多层复合材料的力学性能和降解行为[J].高分子材料科学与工程,2014,30(8):71-75.Wang Y,Wu H,Guo S Y.Characterization of amphiphilic polymer O/W emulsion through porous media[J].Polymer Materials Science&Engineering,2014,30(8):71-75.