Preparation of Photosensitive Carbon Nanotubes by Tannic Acid Modification and Preparation of UV-curable AESO Composite Films

doi:10.7517/issn.1674-0475.190201

Abstract

Abstract: Tannic acid (TA) and glycidyl methacrylate (GMA) were used to prepare a photosensitive tannic acid (pTA) containing double bonds through ring-opening reaction. The pTA modified photosensitive carbon nanotubes (pTA/MWCNTs) with good dispersibility were adsorbed onto carbon nanotubes through π-π noncovalent interaction. The as-prepared pTA/MWCNTs was subsequently incorporated into acrylated epoxidized soybean oil (AESO) covalently via UV curing technology. Modification of MWCNTs by pTA not only improves the dispersibility of MWCNTs, but also introduces double bonds, which enables pTA/MWCNTs to participate in the photocuring process, improves the interfacial adhesion between carbon nanotubes and AESO matrix and plays a better role in enhancing AESO. The effect of pTA/MWCNTs addition on photocuring kinetics and film properties of AESO composite was also studied. The results showed that the addition of pTA/MWCNTs improved the mechanical properties of photocuring epoxy resin. When the amount of pTA/MWCNTs was 0.8%(mass fraction), the enhancement effect on the film was the best. Compared with pure AESO, the tensile modulus of the film increased 390% and the tensile strength increased 110%.

Key words: carbon nanotubes, tannic acid, photosensitive, reinforcement, non-covalent modification, acrylated epoxidized soybean oil

WANG Lingyun, TAN Kan, LUO Jing. Preparation of Photosensitive Carbon Nanotubes by Tannic Acid Modification and Preparation of UV-curable AESO Composite Films[J]. Imaging Science and Photochemistry, 2019, 37(3): 175-184.

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