Material property design of polymer alloy using particle dispersed phase

利用颗粒分散相的聚合物合金材料性能设计

• 批准号: 13650094
• 负责人: HAGIHARA Seiha
• 金额: $ 2.05万
• 依托单位: Saga University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650094/
• 关键词: Polymer Alloy; Particle Modified; Composite; Nonlinear; Creep; Damage; Crack; Delaminate; 有限要素法

It is well-known that the epoxy resin and PMMA are brittle materials. But, a rubber modified polymer alloy is toughened higher by including rubber particles. The mechanism of higher toughness has been not known in the studies. And the rubber modified epoxy is deformed by creep at lower temperature. It is important to understand the damage near the crack-tip, the creep and the creep fracture behavior in order to use the rubber modified polymer alloy.In this study, The material behaviors are the rubber modified epoxy and PMMA are evaluated by the finite element method and experiments. The fracture tests of CT specimen and performed in this study. The material behaviors are elastic, plastic and creep one. The creep damage zone and the creep damage of the rubber particle near the crack-tip is observed in the experiments. The creep approximate equation taking account of creep damage is created using the creep curve obtained from the experiment. The result of the linear, nonlinear, creep, and damage can be based in the design of the rubber modified polymer alloy.

众所周知，环氧树脂和PMMA是脆性材料。但是，橡胶改性的聚合物合金通过包括橡胶颗粒而被增韧得更高。研究中尚不清楚更高韧性的机制。橡胶改性环氧树脂在较低温度下发生蠕变变形。为了更好地应用橡胶改性聚合物合金，了解其裂纹尖端的损伤、蠕变和蠕变断裂行为是非常重要的。本文对CT试样进行了断裂试验.材料具有弹性、塑性和蠕变特性。实验中观察到了蠕变损伤区和裂纹尖端附近橡胶颗粒的蠕变损伤。根据试验得到的蠕变曲线，建立了考虑蠕变损伤的蠕变近似方程。研究结果可为橡胶改性聚合物合金的设计提供依据。

项目成果

萩原, 北島, 宮崎: "ゴム粒子分散エポキシ樹脂のクリープ現象に関するFEM解析と実験"日本機械学会第15回計算力学講演会講演論文集. 01-02. 499-500 (2002)

Hagiwara、Kitajima、Miyazaki：“橡胶颗粒分散环氧树脂蠕变现象的有限元分析和实验”日本机械工程师学会第 15 届计算力学会议论文集 01-02（2002 年）。

TODO, YAMAWAKI, ARAKAWA, HAGIHARA: "Effect of Loading-Rate on the Fracture Toughness of Rubber Modified Epoxy Resins"The 26th Symposium of the Japan Society for Composite Materials. 93-94 (2001)

TODO、YAMAWAKI、荒川、萩原：“加载速率对橡胶改性环氧树脂断裂韧性的影响”日本复合材料学会第 26 届研讨会。

萩原, 太田, 東藤: "ゴム粒子分散PMMAの材料特性に関するFEM解析と実験"日本機械学会第14回計算力学講演会講演論文集. 01-10. 3-4 (2001)

Hagiwara、Ota、Tofuji：“橡胶颗粒分散 PMMA 材料性能的有限元分析和实验”日本机械工程师学会第 14 届计算力学会议论文集 01-10（2001 年）。

HAGIHARA, OTA, TODO: "FEM analyses and experiments of behavior of material properties of rubber toughened PMMA"Japan Society of Mechanical Engineering, The 14th Computational Mechanics Conference. 01-10. 3-4 (2001)

HAGIHARA、OTA、TODO：“橡胶增韧 PMMA 材料性能行为的 FEM 分析和实验”日本机械工程学会，第 14 届计算力学会议。

東藤, 山腰, 荒川, 萩原: "ゴム変性エポキシ樹脂の破壊靱性に及ぼす負荷速度の影響"第26回複合材料シンポジウム講演要旨集. 93-94 (2001)

Tofuji、Yamakoshi、Arakawa、Hagiwara：“加载速率对橡胶改性环氧树脂断裂韧性的影响”第 26 届复合材料研讨会摘要 93-94 (2001)。