紫外光固化壓克力樹脂/黏土奈米複合 材料之製備與性質鑑定之研究

Study on the Synthesis And Characterization of UV-Cured Acrylic resin/Clay Nanocomposite

張肇元(Jaw-Yuan Chang)

指導教授 ： 蔡宗燕

中原大學/理學院/化學研究所/碩士(2010年)

https://doi.org/10.6840/cycu201000763

摘要

本研究選用兩支不同陽離子交換當量的黏土與多官能基壓克力配方進行光聚合，製成壓克力/黏土奈米級複合材料（Acrylate / clay nanocomposites）並對其熱穩定性、紫外光阻隔、耐磨耗機械性質進行研究。首先黏土必須先進行鈉置換純化反應，並利用廣角X-光繞射儀鑑定黏土之純度。由於黏土為親水性，為了提升與高分子的相容性，利用有機分子椰油醯兩性基二丙酸二鈉改質黏土，並使用廣角X-光繞射儀及熱重分析儀確認，所使用的有機改質劑已經與黏土層間之鈉離子置換;接著運用光引發自由基聚合反應製備出壓克力/黏土奈米複合薄膜。以廣角X-光繞射儀，檢測黏土在複材中的分散的型態，並再以穿透式電子顯微鏡（TEM）驗證；以熱重分析儀探討複合材料熱裂解溫度T5d的變化，依據複材薄膜穿透度(200~800nm)討論紫外光阻隔率與可見光穿透率，最後使用鉛筆硬度機進行耐刮測試，總結以上特性，均與黏土在複材中分散的型態有密切的關係，黏土分散的愈均勻，則機械及物理性質會有顯著提升的趨勢。

關鍵字

紫外光固化 ； 改質黏土 ； 壓克力樹脂

並列摘要

Polymer / layered silicate nanocomposites show the enhanced physical and chemical properties when compared to acrylic polymer .In this work Different types of multifunctional acrylic monomers have been used to prepare acrylate / clay nano-composites. There are two types of clays with different cation exchange capacity (CEC),which applied to compare with each other in antiultravoliate and visible light antiscrach,and T5d properties. The clays have been modified, by ion exchange reaction with K2. The modifying agent is used not only to increase inter layered spacing, but also the compatibility between clay and acrylic polymer matrices. The modified clays have been characterized by wide angle X-ray diffraction pattern (WAXD) and thermo-gravimetric analysis (TGA). The acrylic resin /clay nanocomposites have been prepared by UV-cured polymerization method. The powdered X-ray diffraction (XRD) and transmission electron microscopy (TEM) techniques were employed to study the morphology of the acrylic resin /clay nanocomposites. The thermo-mechanical properties were examined by thermo-gravimetric analysis (TGA). The optical property was measured by UV-VIS spectroscopy (200nm~800nm) which shows that these materials have good optical property. Then, the scratch test was examined by pencil hardness machine which shows that the result is relate to the dispersed state of the clay.When the clay disperse uniformly, the mechanical and physical properties will both increase significantly.

並列關鍵字

acrylic resin ； uv-cured

參考文獻

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