에폭시 수지와 층상광물로부터 나노복합재료의 합성

A new type of filler for epoxy-clay nanocomposites has been prepared by the reaction of octadecyltrimethylammonium bromide and layered sodium montmorillonite (MMT) via an ion-exchange reaction. The gallery space was further modified by grafting the aminopropyl groups via a reaction between a octadec...

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Veröffentlicht in:Porrimer (Seṅur) 2000, Vol.24 (4), p.571-577
Hauptverfasser: 강재현(Jae Hyun Kang), 유성구(Sung Gyu Lyu), 서길수(Gil Soo Sur)
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container_title Porrimer (Seṅur)
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유성구(Sung Gyu Lyu)
서길수(Gil Soo Sur)
description A new type of filler for epoxy-clay nanocomposites has been prepared by the reaction of octadecyltrimethylammonium bromide and layered sodium montmorillonite (MMT) via an ion-exchange reaction. The gallery space was further modified by grafting the aminopropyl groups via a reaction between a octadecyltrimethylammonium-MMT and 3-aminopropyltriethoxysilane (APS). The interlayer modification of MMT was confirmed by XRD, IR, and solid-state $^{29}$ Si CP/MAS NMR. Furthermore, clay-polymer nanocomposites have been synthesized by the polymerization of diglycidyl ether of bisphenol A(DGEBA) and $C_{18}$ H$_{37}$ N($CH_3$)$_3$-APS-MMT. The resulting hybrid nanocomposites were characterized by XRD, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The results proved that the organomontmorillonite could be exfoliated and uniformly dispersed in the epoxy matrix. 본 연구에서는 새로운 형태의 에폭시 -광물 라노복합재료를 합성하기 위한 충전재를 층상 화합물인 나트륨-montmorillonite (Na-MMT)와 octadecyltrimethylammonium bromide와의 이온교환 반응으로부터 얻었다. 이렇게 합성된 octadecyltrimethylammonium-MMT에 3-aminopropyl triethoxysilane (APS)를 반응시켜 층상물질의 내부에 aminopropyl기가 삽입된 $C_{18}$ H$_{37}$ N($CH_3$)$_3$-APS-MMT를 합성하였다. 개질된 MMT의 층간저리와 구조를 X-선 회절 (XRD), IR 그리고 고상 $^{29}$ Si CP/MAS NMR을 이용하여 확인하였다. 이어서 $C_{18}$ H$_{37}$ N($CH_3$)$_3$-APS-MMT 존재하에 diglycidyl ether of bisphenol A (DGEBA)를 중합시켜 광물-고분자 나노복합재료를 합성하였다. 그리고 얻어진 나노복합재료의 구조를 XRD, 투과전자현미경 (TEM) 그리고 주사전자현미경 (SEM)으로 확인하였다. 확인 결과 합성된 유기몬모릴로나이트는 에폭시 고분자 내에서 실리케이트 층이 완전히 박리되어 있으며 단일층으로 고분자 매트릭스 내에 잘 분산되어 있음을 알았다.
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The gallery space was further modified by grafting the aminopropyl groups via a reaction between a octadecyltrimethylammonium-MMT and 3-aminopropyltriethoxysilane (APS). The interlayer modification of MMT was confirmed by XRD, IR, and solid-state $^{29}$ Si CP/MAS NMR. Furthermore, clay-polymer nanocomposites have been synthesized by the polymerization of diglycidyl ether of bisphenol A(DGEBA) and $C_{18}$ H$_{37}$ N($CH_3$)$_3$-APS-MMT. The resulting hybrid nanocomposites were characterized by XRD, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). 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The gallery space was further modified by grafting the aminopropyl groups via a reaction between a octadecyltrimethylammonium-MMT and 3-aminopropyltriethoxysilane (APS). The interlayer modification of MMT was confirmed by XRD, IR, and solid-state $^{29}$ Si CP/MAS NMR. Furthermore, clay-polymer nanocomposites have been synthesized by the polymerization of diglycidyl ether of bisphenol A(DGEBA) and $C_{18}$ H$_{37}$ N($CH_3$)$_3$-APS-MMT. The resulting hybrid nanocomposites were characterized by XRD, transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The results proved that the organomontmorillonite could be exfoliated and uniformly dispersed in the epoxy matrix. 본 연구에서는 새로운 형태의 에폭시 -광물 라노복합재료를 합성하기 위한 충전재를 층상 화합물인 나트륨-montmorillonite (Na-MMT)와 octadecyltrimethylammonium bromide와의 이온교환 반응으로부터 얻었다. 이렇게 합성된 octadecyltrimethylammonium-MMT에 3-aminopropyl triethoxysilane (APS)를 반응시켜 층상물질의 내부에 aminopropyl기가 삽입된 $C_{18}$ H$_{37}$ N($CH_3$)$_3$-APS-MMT를 합성하였다. 개질된 MMT의 층간저리와 구조를 X-선 회절 (XRD), IR 그리고 고상 $^{29}$ Si CP/MAS NMR을 이용하여 확인하였다. 이어서 $C_{18}$ H$_{37}$ N($CH_3$)$_3$-APS-MMT 존재하에 diglycidyl ether of bisphenol A (DGEBA)를 중합시켜 광물-고분자 나노복합재료를 합성하였다. 그리고 얻어진 나노복합재료의 구조를 XRD, 투과전자현미경 (TEM) 그리고 주사전자현미경 (SEM)으로 확인하였다. 확인 결과 합성된 유기몬모릴로나이트는 에폭시 고분자 내에서 실리케이트 층이 완전히 박리되어 있으며 단일층으로 고분자 매트릭스 내에 잘 분산되어 있음을 알았다.</abstract><pub>한국고분자학회</pub><tpages>7</tpages><oa>free_for_read</oa></addata></record>
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title 에폭시 수지와 층상광물로부터 나노복합재료의 합성
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