Studies on the synthesis and properties of terpene-phenol-aldehyde resin with a high softening point |
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Authors: | Shi-Fa Wang Takeshi Furuno Zhi Cheng |
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Institution: | (1) Faculty of Science and Engineering, Shimane University, 690-8504 Matsue, Japan;(2) College of Chemical Engineering of Forest Products, Nanjing Forestry University, 210037 Nanjing, China |
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Abstract: | Synthesis conditions of terpene-phenol-aldehyde resin with a high softening point were studied based on the reactions among -pinene, phenol, and formaldehyde. A suitable catalyst system and the best processing conditions were obtained by laboratory experiments. The influence of the raw materials ratios, reaction temperature, reaction time, and catalyst dose on the softening point, yield, and color of the synthesized resin was examined. The physical and chemical characteristics of the resin were determined: softening point 140°C (ball and ring method); color value 7 (Gardner); acid value (KOH mg/g) <1; bromine value (Br2 mg/100g) <64; saponification value (KOH mg/g) <1; average molecular weight 830. The yield of resin was more than 85% (based on the total raw material). |
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Keywords: | -Pinene" target="_blank">gif" alt="agr" align="BASELINE" BORDER="0">-Pinene Phenol Formaldehyde Polymerization Condensation |
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