< 전시-P-39 > Characterization of Surface-modified CNC: Influence of aminoethyl-aminopropyl-trimethoxysilane(AEAPTMS) = < 전시-P-39 > Characterization of Surface-modified CNC: Influence of aminoethyl-aminopropyl-trimethoxysilane(AEAPTMS)

다국어 초록 (Multilingual Abstract)

CNC(cellulose nanocrystal) is a renewable and biodegradable reinforcing filler that gives impressive mechanical properties to filled polymer composites. However, further studies are required for its application because of its low dispersibility in nonpolar polymer matrix, which is one major drawback for the application of CNC as a high value-added additive, and its strong tendency for self-agglomeration by internal hydrogen bonding. To overcome these shortcomings, the surface of CNC was modified with silane coupling agent(aminoethyl-aminopropyl-trimethoxysilane, AEAPTMS) and some characterizations were examined.
AEAPTMS is a kind of silane coupling agent and is known as an additive that effectively improves the functionality and compatibility with the polymer matrix. By just silylating the CNC surface with silane aquatic solutions, the CNC surface can be modified in a more direct, convenient and environmentally-friendly manner without using any hazardous solvents. The surface modified CNCs were analyzed using various characterization instruments (field emission scanning electron microscopy, energy dispersive X-ray analysis, thermogravimetric analysis, etc.) in comparison with MFC(microfibrillated cellulose) and pristine CNC materials.
This study is expected to improve the applicability and value-added of CNC as a reinforcing filler for various polymer composites.