Bioactivity and mechanical properties of CaSiO3/high-density polyethylene (HDPE) composites prepared by a new surface loading method of CaSiO3 powder

Kiyoshi Okada, Miho Tanuma, Yoshikazu Kameshima, Akira Nakajima, Shigeo Asai, Masao Sumita

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


CaSiO3/high-density polyethylene (HDPE) composites with flexibility and biocompatibility were prepared by a new surface loading method. CaSiO3 powder was synthesized by coprecipitation method with heating at 1300 °C for 2 h. The obtained α-CaSiO3 powder was sieved to 45-75 μm (sample M) and 75-150 μm (sample C). Fine powder sample (sample F) was prepared by grinding the powder being the average particle size of 2.9 μm. These powders were sprinkled on the melted HDPE sheets heated at 160, 180 and 200 °C. The amounts of sprinkled powder were only <0.1 vol.% but the ratios of surface coverage area were >50% in all the samples. Apatite formation in simulated body fluid (SBF) was observed by soaking for 5 days in sample F while within 1 day in samples M and C. The sample M retained flexible properties of HDPE together with excellent biocompatible properties.

Original languageEnglish
Pages (from-to)298-305
Number of pages8
JournalMaterials Research Bulletin
Issue number2
Publication statusPublished - Feb 4 2009
Externally publishedYes


  • A. Ceramics
  • B. Chemical synthesis
  • C. Electron microscopy
  • D. Microstructure

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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