| 초록 |
Phenol-formaldehyde (PF) resins were the first commercial synthetic resins as plastics. PF resins have excellent properties such as high thermal stability, electrical insulation and chemical resistance. However, their components are based on petrochemicals. So, due to the environmental and economic problems, their replacement has become a necessity. Lignin is a promising eco-friendly alternative in production of PF resin because of their natural polyphenolic structure. Part of the aim of this study is development of lignin-substituted PF resin. We investigated the parameters for production of lignin-substituted PF resin in the presence of NaOH as catalyst. The lignin-substituted PF resin was prepared, and their properties were studied by fourier transform infrared (FT-IR), gel permeation chromatography (GPC) and thermogravimetric analyzer/differential canning calorimetry (TGA/DSC). |
