G-O/P(MMA-co-BA)共聚物复合薄膜表面三维角锥棱镜结构的卷对卷热辊压成形
Forming of 3D Micro-pyramid Arrays on Surface of G-O/P(MMA-co-BA)Composite Films by Roll-to-Roll Hot Embossing
摘 要
采用原位乳液聚合的方法制备了氧化石墨烯(G-O)/甲基丙烯酸甲酯-丙烯酸正丁酯共聚物复合材料,采用卷对卷热辊压成形技术在该复合材料薄膜表面压印了三维角锥棱镜结构,使用流变仪测定了薄膜的储能模量,并研究G-O的含量、辊压速度和辊压温度对薄膜表面三维角锥棱镜结构成形率和平均高度的影响.结果表明:采用应变扫描和频率扫描时,储能模量均随G-O含量的增加而增大;随着G-O含量增加,薄膜表面的三维角锥棱镜结构的成形率降低,但平均高度增大;在恒定的压力下,升高辊压温度或降低辊压速度均能改善复合薄膜表面三维角锥棱镜结构的成形效果.
薄膜
氧化石墨烯
储能模量
热辊压成形技术
acrylate copolymer
thin film
graphene oxide
storage modulus
hot embossing technology
Abstract
Graphene oxide (G-O)/methyl methacrylate (MMA)-butyl acrylate (BA) copolymer composites were prepared by in situ emulsion polymerization.3D micro-pyramid arrays were fabricated on the surfaces the films by roll-to-roll hot embossing.The storage modulus of the composites films were studied by rheometer.The forming ratio and average height of 3D mico-pyramid arrays on the surface of the composites films were investigated as a function of G-O content,feeding speed and temperature.The results show that the storage modulus increased with the increase of G-O contents when tested by both frequency and strain sweep.With the increase of G-O content,the forming ratio of 3D mico-pyramid arrays decreased but the average height increased.At the same applied force,increasing temperature or decreasing feeding speed all could improve the forming of 3D mico-pyramid arrays on the surface of the films.
中图分类号 TH145.4 DOI 10.11973/jxgccl201507012
所属栏目 新材料 新工艺
基金项目 国家自然科学基金资助项目(51275008,51273109)
收稿日期 2014/12/19
修改稿日期 2015/4/1
网络出版日期
作者单位点击查看
备注姬婷婷(1990-),女,江苏徐州人,硕士研究生.
引用该论文: JI Ting-ting,ZHAI Ying-hao,ZHANG Yong,DENG Yu-jun,YI Pei-yun,LAI Xin-min. Forming of 3D Micro-pyramid Arrays on Surface of G-O/P(MMA-co-BA)Composite Films by Roll-to-Roll Hot Embossing[J]. Materials for mechancial engineering, 2015, 39(7): 58～63
姬婷婷,翟滢皓,张勇,邓宇君,易培云,来新民. G-O/P(MMA-co-BA)共聚物复合薄膜表面三维角锥棱镜结构的卷对卷热辊压成形[J]. 机械工程材料, 2015, 39(7): 58～63
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【5】CAO W,MYERS J D,ZHENG Y,et al.Enhancing light harvesting in organic solar cells with pyramidal rear reflectors[J].Applied Physics Letters,2011,99(2):023306-1-023306-3.
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【7】PENG L F,DENG Y J,YI P Y,et al.Micro hot embossing of thermoplastic polymers:a review[J].Journal of Micromechanics and Microengineering,2014,24(1):013001-013023.
【8】JENA R K,TAYLOR H K,LAM,Y C,et al.Effect of polymer orientation on pattern replication in a micro-hot embossing process:experiments and numerical simulation[J].Journal of Micromechanics and Microengineering,2011,21(6):065007-065015.
【9】LAZZARINO F,GOURGON C,SCHIAVONE P,et al.Mold deformation in nanoimprint lithography[J].Journal of Vacuum Science & Technology B:Microelectronics and Nanometer Structures,2004,22(6):3318-3322.
【10】SAHLI M,MALEK C K,GELIN,J C.3D modelling and simulation of the filling of cavities by viscoelastic polymer in roll embossing process[J].International Journal of Material Forming,2009,2(S1):725-728.
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【29】DENG Y J,YI P Y,PENG L F,et al.Experimental investigation on the large-area fabrication of micro-pyramid arrays by roll-to-roll hot embossing on PVC film[J].Journal of Micromechanics and Microengineering,2014,24(4):045023-045034.
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