| 摘要: | 本研究旨在製備具高介電常數及高性能之酚醛樹酯/鈦酸鋇奈米複合材料，並檢測其物理性質、熱性質、機械性質、電性質與光學性質。本實驗使用矽烷偶合劑（MPS）接枝於奈米鈦酸鋇表面進行改質。用以酚醛樹脂(PF)添加BaTiO3和MPS-m-BaTiO3奈米複合材料的製備與不同的成份克數(每100克的樹脂所含該之成份克數)。
探討不同成份克數的BaTiO3和MPS-m-BaTiO3對酚醛樹脂奈米複合材料的形態學(FT-IR、SEM、TEM及XRD)、物理性質(密度、空孔率)、機械性質(硬度、耐磨耗指數、抗折強度、抗張強度及耐衝擊強度)、熱性質(TGA、CTE、HDT及VST)、電性質(介電常數)及光學性質(透光率)之性能和影響的差異程度。
實驗結果得知，經由TGA、FT-IR、XRD及XPS測試，可以證明矽烷偶合劑接枝的成功，並經由在粒徑分析下，能保有補強材的尺寸在奈米等級。
在酚醛樹脂/奈米鈦酸鋇奈米複合材料的添加BaTiO3和MPS-m-BaTiO3的部分，結構與形態學在SEM圖得知添加BaTiO3和MPS-m-BaTiO3可使表面結構從原來的多孔洞變為較平滑的表面；物理性質的測試，密度與空孔率上升；在機械性質測試結果，硬度與磨耗指數，皆為上升。則抗折與抗張的測試中，添加BaTiO3或MPS-m-BaTiO3，其強度與模數皆有上升趨勢；在熱性質，耐熱性提高效果更加顯著；在電性質方面，隨著BaTiO3和MPS-m-BaTiO3添加，介電常數有顯著地提升效果，且在厚度為6mm時擁有最高之介電常數值；光學性質的透光率影響，添加BaTiO3與MPS-m-BaTiO3的含量越多，會使其透光度下降，反之吸光度有良好的提升作用。
This project object is to research the unsaturated high dielectric constant and high performance of the phenolic resin / barium titanate nanocomposites and determine properties about physical, mechanical properties,electrical properties,optical properties and dynamic mechanical properties. In this study, using 3- (Trimethoxysilyl) propyl methacrylate (MPS) grafted nano barium titanate surface modification. For unsaturated phenolic resin (PF) Add prepared BaTiO3 and MPS-m-BaTiO3 Nanocomposites with a different number of grams of composition (per 100 grams of resin contained in the composition of the number of grams). Explore the different components of the number of grams of BaTiO3 and MPS-m-BaTiO3 nanometer morphology of unsaturated phenolic resin composites (FT-IR, SEM, TEM and XRD), physical properties (density, porosity), mechanical properties (hardness, abrasion index, flexural strength, tensile strength and impact strength), thermal properties (TGA, CTE, HDT and VST), electrical properties (dielectric constant)and the optical properties (transmittance).
The experimental results that, by TGA, FT-IR, XRD and XPS testing can prove the success of silane coupling agent grafted via at particle size analysis, to retain the size of the reinforcing material in nano levels. Unsaturated phenolic resin / barium titanate adding BaTiO3 and MPS-m-BaTiO3 part of the composite material, structure and morphology in SEM image that the addition of BaTiO3 and MPS-m-BaTiO3 allows more surface structures from the original hole into a smoother surface; a test of physical properties, effectively increasing; in mechanical properties test results, hardness and abrasion index, are all rising. The bending and tensile test, adding BaTiO3 or MPS-m-BaTiO3, its strength is rised; thermal properties, heat resistance improving effect is more significant; in terms of electrical properties, with BaTiO3 and MPS-m-BaTiO3 Add permittivity have to enhance the effect; transmittance affect optical properties, add more content BaTiO3 and MPS-m-BaTiO3, and will make it light transmission decreased, whereas the absorbance of a good promotion effect. |
