| 研究生: |
曾鴻儒 Zeng, Hong-Ru |
|---|---|
| 論文名稱: |
穩定化溫度及成型壓力對橡膠基摩擦材料機械及磨潤性質的影響 Effects of Post-Curing Temperature and Pressure on Mechanical and Tribological Properties of the Rubber Based Friction Material |
| 指導教授: |
朱建平
Ju, Chien-Ping 陳瑾惠 Chern Lin, Jiin-Huey |
| 共同指導教授: |
李國榮
Lee, Kuo-Jung |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 材料科學及工程學系 Department of Materials Science and Engineering |
| 論文出版年: | 2011 |
| 畢業學年度: | 99 |
| 語文別: | 中文 |
| 論文頁數: | 98 |
| 中文關鍵詞: | 磨擦材料 、橡膠 、磨耗 |
| 外文關鍵詞: | friction materials, rubber, wear |
| 相關次數: | 點閱:90 下載:3 |
| 分享至: |
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研究使用耐高溫橡膠製作橡膠基磨擦材料,並探討穩定化溫度及成型壓力對磨擦材料機械及磨潤性質的影響。研究中分別利用蕭式硬度機、示差掃描熱量分析儀、磨耗試驗機、掃描式電子顯微鏡來分析磨擦材料的機械、熱磨潤性質與顯微結構,並評估此摩擦材料應用於高速單車煞車片。
由實驗結果顯示,在成型壓力部份,隨著成型壓力的提升,在硬度上有稍微的提升,磨耗的厚度損失降低,摩擦係數變化不大,在穩定化溫度部分,耐高溫橡膠會產生交聯反應,硬度明顯上升,摩擦係數下降,磨耗的厚度損失減少,表面粗糙度下降;當溫度持續增加,硬度略為下降,摩擦係數與表面粗糙度變化不大,在嚴苛條件測試下,各類試片經過T3穩定化均可通過嚴苛條件測試。
綜合實驗結果發現成型壓力為P1,穩定化溫度為T6的試片,可通過嚴苛條件測試,且在嚴苛條件下具有最高的摩擦係數,具有應用於高速單車煞車片的潛力。
The effects of post-curing temperature and molding pressure on mechanical and tribological properties of rubber-based friction materials were investigated. The mechanical properties, thermal properties, tribological properties, and microstructure of friction material were measured by Shore-type hardness tester, differential scanning thermal analyzer, sliding wear tester, and scanning electron microscopy.
The results indicate that the hardness of friction materials increased as the molding pressure from P1 to P3 MPa while the wear loss in thickness of friction materials were decreased. Moreover , the coefficient of friction(COF) value of friction materials on different molding pressure are similar. Due to cross-linking reaction of rubber at the temperature of T3, the hardness of friction materials significantly increased as the post-curing temperature was over T3, while COF value, wear loss on thickness, and surface roughness decreased. However, as the temperature increased over T3, the COF value and surface roughness of friction material are similar. On serious test shows the specimens which post-curing at the temperature over T3 can pass the serious test.
Consequently, base on mechanical and tribological properties of all specimens, the friction materials on the pressure of P1 and at the temperature of T6 has the best performance and the potential for bicycle brake pads in high speed.
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