J. Mater. Sci. Technol. ›› 2010, Vol. 26 ›› Issue (5): 454-460.

• Research Articles • 上一篇    下一篇

Preparation and Compaction Behaviour of Poly(methyl metacrylate)Coated Iron Microparticles

Daniela Kladekova1,RenataOrinakova1,AnnamariaKrajnikova1,MiriamKupkova2,MargitaKabatova3   

  1. 1. University of P.J. Safarik
    2. Institute of Materials Research of the Slovak Academy of Sciences
    3. Institute of Materials Research of the Slovak Academy of Sciences,
  • 收稿日期:2009-05-31 修回日期:2009-11-30 出版日期:2010-05-31 发布日期:2010-06-01
  • 通讯作者: Daniela Kladekova
  • 基金资助:

    Slovak Grant Agency;上海市重点学科

Preparation and Compaction Behaviour of Poly(methyl methacrylate) Coated Iron Microparticles

Daniela Kladekova, Renata Orinakova, Annamaria Krajnkova, Miriam Kupkova, Margita Kabatova, Kveta Markusova   

  1. 1) Institute of Chemistry, Faculty of Science, P.J. Safarik University in Kosice, Moyzesova 11, SK-041 54 Kosice, Slovakia
    2) Institute of Materials Research of the Slovak Academy of Sciences in Kosice, Watsonova 47, SK-043 53 Kosice, Slovakia
  • Received:2009-05-31 Revised:2009-11-30 Online:2010-05-31 Published:2010-06-01
  • Contact: Daniela Kladekova
  • Supported by:

    the Slovak Grant Agency (Grant VEGA 1/0043/08 and 2/0129/09) 
    the Slovak Research and Development Agency (Project APVV-0490-07)

摘要:

A study on the electrochemical preparation of poly(methyl methacrylate) (PMMA) coatings onto surface of iron particles and their effect both on surface structure and on internal structure of the resulted material after compaction was carried out. The electrochemical polymerization treatment was performed in a fluidized bed electrolyzer using sulphuric acid solution containing potassium persulphate and methyl methacrylate (MMA). The surface appearance and the microstructure of the samples were observed by scanning electron (SEM) and optical (OM) microscopy techniques. It was found that the PMMA layer coated onto iron particles results in improvement of their compressibility compared with uncoated powders. Classical lubricants are not necessary for compacting particles coated this way.

Abstract:

The poly(methyl methacrylate) (PMMA) coatings onto surface of iron particles were electrochemically prepared and the effect on both surface structure and internal structure of the resulted material after compaction was carried out. The electrochemical polymerization treatment was performed in a fluidized bed electrolyzer using sulphuric acid solution containing potassium persulphate and methyl methacrylate (MMA). The surface topography and the microstructure of the samples were observed by scanning electron  microscopy (SEM) and optical microscopy (OM). It was found that the PMMA layer coated onto iron particles results in improvement of their compressibility compared with uncoated powders, and classical lubricants are not necessary for compacting particles coated.

Key words: Cathodic electropolymerization, Poly(methyl methacrylate) coating, Surface appearance, Microstructure, Compaction process