| 摘要: | 本論文以混練押出法製備玻璃纖維補強聚醯胺 6（Polyamide 6, PA6 ）複合材料，並探討不同界面改質與不同纖維型態之短束玻璃纖維，再探討加入 0% 、6%和 8%增韌劑對 PA6 本身特性之影響。
首先以 FT-IR、XPS 分析玻璃纖維之形態與成份，在複合材料混練完成後，以射出成型法製成符合 ASTM 規範試片，探討不同界面偶合劑的玻璃纖維，其改質與纖維斷面型態對複合材料的物理性質[硬度、密度
]、機械性質[抗張、抗折、衝擊]與熱性質[MI、TGA、DSC、TMA、HDT
、VST]及動態機械性質[DMA]的影響，最後再針對破壞面進行電子顯微鏡觀察以瞭解玻纖與 PA6 之界面關係。
結果顯示在固定玻璃纖維的添加量下，增韌劑的加入量以加入 8% 韌性最強、剛性最弱，加入 6%增韌劑的數值居中，與玻璃纖維界面相性提升，韌性與剛性數值居中。玻璃纖維的型態對於接近基材熔點的熱性質測試有較大的特徵變化而經由 SEM 觀察複材內部之玻璃纖維分布情況與纖維/高分子間的界面相容性，更進一步表明有加入增韌劑之複合材料其界面相性更佳。
This study was prepared by melt blending a glass fiber reinforced polyamide 6 (PA6) composites, to investigate the effects of 0%, 6% and 8% toughening and the influence of different types for short glass fiber on the performance of the PA6.
First, the morphology of glass fiber was first analyzed by FT-IR and XPS. After the completion of compounding, investigated the injection molding composites, by the effects of different fiber types on the physical properties(Hardness, Density), mechanical properties(tensile, bending, impact) and thermal properties(MI, TGA, DSC, TMA, HDT, VST) and dynamic mechanical properties(DMA). Then use the electron microscope to observed fracture specimen surface by understand the glass fiber and resin interface.
Results show that under the added amount of fixed glass fiber, toughener add 8% is toughness, 6% is moderate, 0% is stiffness, glass fiber type has larger characteristic changes for thermal properties by testing close to the melting point of the substrate. Use SEM observing the distribution of glass fiber inside the composite material and the interfacial phase between the fiber/polymer, it further shows that the composite material with the toughening agent has better interface. |
