Free volume in a thin film of epoxy resine coated on a metal base studied by positron annihilation

通过正电子湮灭研究金属基底上涂覆的环氧树脂薄膜的自由体积

基本信息

  • 批准号:
    14550853
  • 负责人:
  • 金额:
    $ 2.24万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2002
  • 资助国家:
    日本
  • 起止时间:
    2002 至 2003
  • 项目状态:
    已结题

项目摘要

Free volumes in a thin film coated on a metal base plate can be studied by positron annihilation. However, In order to study the surface of polymers, a pulsed slow positron beam (PSPB) is necessary to determine the injection time in the investigated polymer. In this project, a small apparatus desk-top size to generate a PSPB using radio isotopes (RI) has been used. The bunched and pulsing beam was obtained by the RF method, in which RF field is applied on an Al tube with 2cm diameter and 5cm length. The length is determined by the flight time of positrons through the tube. Thus 40 MHz RF is used to bunch the rundum beam to a bunched beam. The width is 500 to 600ps, which is enough to study polymer samples, which have lifetimes longer than 1.5ns to 2 ns.The apparatus to inject a pulsed and bunched beam in samples has been successfully applied to measure lifetimes of polymers : polyethylene, epoxy resin, epoxy composite, epoxy coated films on a Silicon metal. Carbon-implanted ultra-high molecular-weight polyethylene, was prepared and the surface affected by the ions was studied. The surface was distorted and the lifetime became a little longer than the balk sample. Ps formation intensity became small around the depth of the deposited position, where the carbon implanted layer is expected. The heat expansion coefficient of the surface and the bulk of epoxy resin was obtained.The increase in the positronium formation with increasing the depth was observed in polyethylene. The skin layer of the composite materials was observed by a non destructive method. Low K films on Silicon plate, which are extensively used in IC and electric industry has been studied.Large holes with about 50 ns positron lifetime has been successfully observed
用正电子湮没方法可以研究金属基板上镀膜的自由体积。然而,为了研究聚合物的表面,需要脉冲慢正电子束(PSPB)来确定所研究的聚合物的注入时间。在这个项目中,使用了一个小型仪器桌面尺寸来使用放射性同位素(RI)来产生PSPB。在直径为2 cm、长为5 cm的铝管上施加射频场,获得了聚束脉冲光束。这个长度是由正电子在试管中飞行的时间决定的。因此,40 MHz的射频被用来将刚玉光束聚集成聚束光束。其宽度为500~600ps,足以研究寿命大于1.5 ns~2 ns的聚合物样品。脉冲聚束注入样品的装置已成功地用于测量聚合物:聚乙烯、环氧树脂、环氧复合材料、金属硅上的环氧涂层薄膜的寿命。制备了碳离子注入超高相对分子质量聚乙烯,并研究了离子对其表面的影响。表面被扭曲,寿命变得比BALK样品略长。在沉积位置的深度附近,PS的形成强度变小,这是预期的碳离子注入层。得到了环氧树脂的表面和本体的热膨胀系数,发现聚乙烯中正电子的生成随深度的增加而增加。用非破坏性方法观察了复合材料的表层。对广泛应用于集成电路和电子工业的硅片上的低K薄膜进行了研究,成功地观察到了正电子寿命约为50 ns的大空穴

项目成果

期刊论文数量(188)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
熊木尚, 鈴木健訓, 他: "低速陽電子短パルス化装置を用いた表面自由体積の研究"ネツトワークポリマー. 23. 24-31 (2002)
Hisashi Kumaki、Takenori Suzuki 等人:“使用慢速正电子短脉冲发生器研究表面自由体积”网络聚合物。23. 24-31 (2002)
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    0
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N.Djourelov, 鈴木健訓, 他: "Positron Annihilation in Polypropylene studied by Lifetime and Coincidence Doppler-Broadening Spectroscopy"Radiation Physics and Chemistry. 68. 689-695 (2003)
N.Djourelov、Takenori Suzuki 等人:“通过寿命和符合多普勒展宽光谱研究聚丙烯中的正电子湮灭”辐射物理和化学 68. 689-695 (2003)。
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    0
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He, C.Q., Suzuki, T., Kondo, +2 authors: "Temperature dependence of ortho-positronium annihilation in hypercrosslinked polystyrene"Rad.Phys.Chem.. 68. 511-514 (2003)
He, C.Q.、Suzuki, T.、Kondo,2 位作者:“超交联聚苯乙烯中正正电子湮灭的温度依赖性”Rad.Phys.Chem.. 68. 511-514 (2003)
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    0
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Azuma, M., Suzuki, T., +6 authors: "Ultra drawing of blend films of ethylene-dimethyl-aminoethyl methacrylate copolymer and ultra-high molecular weight polyethylene prepared by gelation/crystallization from solutions"Polymer. 45. 409-421 (2004)
Azuma, M.、Suzuki, T.,6 位作者:“乙烯-二甲基氨基乙基甲基丙烯酸酯共聚物和超高分子量聚乙烯的共混膜的超拉丝,通过从溶液中凝胶化/结晶制备”聚合物。
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    0
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Matsuo, M., Suzuki, T., +4 authors: "Relaxation mechanism in several kinds of polyethylene estimated by dynamic mechanical measurements, positron annihilation, X-ray and 13C solid-state NMR"Polymer. 44. 4325-4340 (2003)
Matsuo, M.、Suzuki, T.,4 位作者:“通过动态机械测量、正电子湮没、X 射线和 13C 固态 NMR 估计几种聚乙烯的弛豫机制”聚合物。
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    0
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SUZUKI Takenori其他文献

SUZUKI Takenori的其他文献

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{{ truncateString('SUZUKI Takenori', 18)}}的其他基金

A Pulsed Slow Positron Beam Apparatus and its Application to Thin Polymer Films
脉冲慢正电子束装置及其在聚合物薄膜中的应用
  • 批准号:
    12555270
  • 财政年份:
    2000
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
The relation between free volume and relaxation behavior studied by positron annihilation
正电子湮灭研究自由体积与弛豫行为的关系
  • 批准号:
    10650894
  • 财政年份:
    1998
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Research and development on the pulsed slow positron beam to analyze surface of polymer
脉冲慢正电子束分析聚合物表面的研究与开发
  • 批准号:
    09555298
  • 财政年份:
    1997
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
FREE VOLUME DURING CURING REACTION OF THERMOSETTING RESIN STUDIED BY POSITRON ANNIHILATION
正电子湮灭研究热固性树脂固化反应过程中的自由体积
  • 批准号:
    08651062
  • 财政年份:
    1996
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Free Volumes of Ploymers Studied by Positron Annihilation
通过正电子湮灭研究聚合物的自由体积
  • 批准号:
    06651064
  • 财政年份:
    1994
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Radiation damage of polymers studied by positron annihilation
通过正电子湮灭研究聚合物的辐射损伤
  • 批准号:
    03680199
  • 财政年份:
    1991
  • 资助金额:
    $ 2.24万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

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Cross section measurements of 12C(alpha, gamma) reactions by means of an intense pulsed beam
通过强脉冲束测量 12C(α、γ)反应的横截面
  • 批准号:
    20244036
  • 财政年份:
    2008
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    $ 2.24万
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CRIF:ID-Design and Construction of a 1 to 10 GHz Pulsed-beam, Fourier-Transform Spectrometer
CRIF:1 至 10 GHz 脉冲束傅里叶变换光谱仪的 ID 设计和构造
  • 批准号:
    0721505
  • 财政年份:
    2007
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    $ 2.24万
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High resolution rotational spectra of radicals by pulsed beam Fourier transform microwave spectroscopy
脉冲束傅里叶变换微波光谱法测定自由基的高分辨率旋转光谱
  • 批准号:
    5157512
  • 财政年份:
    1999
  • 资助金额:
    $ 2.24万
  • 项目类别:
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The Laboratory Study of Interstellar Radicals by Pulsed Beam Fourier Transform Microwave Spectroscopy
脉冲束傅立叶变换微波光谱法对星际自由基的实验室研究
  • 批准号:
    9819718
  • 财政年份:
    1999
  • 资助金额:
    $ 2.24万
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The Study of Radicals Using a Pulsed Beam Fourier Transform Microwave Spectrometer
脉冲束傅里叶变换微波光谱仪对自由基的研究
  • 批准号:
    9423355
  • 财政年份:
    1995
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Construction of a Pulsed Beam Fourier Transform Microwave Spectrometer
脉冲束傅立叶变换微波光谱仪的构建
  • 批准号:
    9215098
  • 财政年份:
    1992
  • 资助金额:
    $ 2.24万
  • 项目类别:
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Measurements of the Structure and Properties of Weakly Bound Complexes Using a Pulsed-Beam Fabry-Perot Microwave Spectrometer (Chemistry)
使用脉冲束法布里-珀罗微波光谱仪测量弱结合配合物的结构和性质(化学)
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