Title

以濕式研磨法研製水滑石/尼龍6及水滑石/聚對苯二甲酸乙二酯奈米複合材料的研究

Translated Titles

Preparation of LDHs/Nylon 6 and LDHs/PET nanocomposites by wet milling process

Authors

黃國徑

Key Words

濕式研磨法 ; 奈米複合材料 ; 水滑石 ; Layered double hydroxides ; Nanocomposites ; Milling process

PublicationName

成功大學化學工程學系學位論文

Volume or Term/Year and Month of Publication

2009年

Academic Degree Category

碩士

Advisor

陳志勇

Content Language

繁體中文

Chinese Abstract

水滑石是一種容易製備的層狀材料,本文先利用共沉澱法合成硬脂酸根插層的有機化水滑石(LDH-S),並以FT-IR、XRD、ICP Mass、EA、TGA進行鑑定。再以濕式研磨分散法製備出高濃度(50%)的水滑石濃縮粒,經過XRD與SAXS的分析之後可知有機化水滑石LDH-S的層間距從原本的3.1nm增加到3.9nm以上,本研究再進一步將濕式研磨法處理過的水滑石濃縮粒與尼龍6(nylon 6)、聚對苯二甲酸乙二酯(PET)等高分子中進行分散,經過XRD、SAXS、TEM等分析發現水滑石呈現插層型態的分佈在高分子基材當中。從DSC的結果當中,發現水滑石會降低LDH-S/nylon 6與LDH-S/PET結晶的完整性,進而對結晶型態產生改變,亦降低結晶成長速率(k)。並透過氣體透過率的分析,發現水滑石的層板構造具有阻隔氣體穿透的能力。

English Abstract

Layered double hydroxides (LDHs) are a class of readily synthesizable layered crystals. In this work, we synthesized organic stearate anion-modified MgAl-LDH (LDH-S) via the co-precipitation method. The organic-modified LDHs were characterized by FT-IR, XRD, ICP, and EA. The milling process was used to modify LDH-S by PL-101 or PL-102, and obtained high LDH-S concentration (50 wt%) hybrids. After the analysis of XRD and SAXS, the d-spacing was increased from 3.1nm to 3.9nm above. We blended these hybrids within polymer, such as nylon 6 & PET, to prepare LDH-S/nylon 6 and LDH-S/PET nanocomposites. The dispersion of LDH-S layers was characterized by XRD, SAXS, and TEM. It was found that intercalated nanocomposites were obtained by melt processing. The thermal property of these nanocomposites was characterized by DSC. From the DSC results, LDH-S layers affected the perfection of crystallization. As LDH-S contents increasing, the crystallization rate constant ( k ) was decreased. Also, we found that LDH-S layers in the nanocomposites can reduce the permeation of gas.

Topic Category 工學院 > 化學工程學系
工程學 > 化學工業
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Times Cited
  1. 倪浩軒(2012)。奈米矽藻土及其次微米粒徑之生化性質研究。中國醫藥大學藥用化妝品學系碩士班學位論文。2012。1-90。