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    邓朝晖, 刘健宁, 邓虎. 选择性激光烧结纳米蒙脱土改性聚苯乙烯[J]. 机械工程材料, 2007, 31(12): 47-50.
    引用本文: 邓朝晖, 刘健宁, 邓虎. 选择性激光烧结纳米蒙脱土改性聚苯乙烯[J]. 机械工程材料, 2007, 31(12): 47-50.
    shu
    DENG Zhao-hui, LIU Jian-ning, DENG hu. Polystyrene Modified with Nano-montmorillonite by Selectie Laser Sintering[J]. Materials and Mechanical Engineering, 2007, 31(12): 47-50.
    Citation: DENG Zhao-hui, LIU Jian-ning, DENG hu. Polystyrene Modified with Nano-montmorillonite by Selectie Laser Sintering[J]. Materials and Mechanical Engineering, 2007, 31(12): 47-50.
    shu

    选择性激光烧结纳米蒙脱土改性聚苯乙烯

    Polystyrene Modified with Nano-montmorillonite by Selectie Laser Sintering

      摘要
    • 摘要: 基于选择性激光烧结(SLS)技术,将有机纳米蒙脱土(OMMT)分别直接添加到聚苯乙烯(PS)、聚苯乙烯(PS)/环氧树脂(EP)混合粉末中,进行烧结试验;用X射线衍射仪、扫描电镜对烧结试样进行了表征,并考察了其抗拉强度和抗弯强度.结果表明:利用SLS技术可直接制备出分别以PS粉末和PS/EP混合粉末为基体经有机纳米蒙脱土(OMMT)改性的纳米复合块体材料,添加了蒙脱土的两种复合粉末烧结试样的抗拉强度和抗弯强度均优于纯PS粉末的烧结试样,混合了EP粉末的PS/EP/OMMT复合粉末的性能最佳,其抗拉强度和抗弯强度比纯PS粉末的分别提高了139%和108%.

       

      Abstract: Based on selective laser sintering(SLS) technology,polystyrene powders and polystyrene(PS)/epoxy resin EP blended powders were modified with nano-orgnic-montmorillonite(OMMT).The tensile strength and flexural strength of sintered part were studied,and its structure was characterized by XRD and SEM.The results show that the nano-orgnic-montmorillonite is intercalated by PS and PS/EP during the sintering process.The tensile strength and flexural strength of the PS/OMMT and PS/EP/OMMT are remarkably improved than pure PS.The sintered part of PS/EP/OMMT is optimal with the increase by over 139% in the tensile strength and over 108% in the flexural strength.

       

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