腰果酚基酚醛树脂微球制备方法的研究
Study on the Preparation Method of Cardanol Formaldehyde Resin Microspheres
摘要: 利用改进的Stöber制备方法，以腰果酚与甲醛为单体，乙醇/水为混合溶剂，氨水为催化剂及六次甲基四胺为固化剂合成高邻位腰果酚基酚醛树脂微球(CFRM)。通过改变单体摩尔比、乙醇/水的体积比、氨水和固化剂的浓度调节CFRM粒径大小与均匀性，采用红外光谱(FT-IR)、扫描电子显微镜(SEM)和动态光散射法表征酚醛树脂的化学结构和观察微球的表面微观结构。结果表明在1:1.5的腰果酚/甲醛摩尔比、2:5的乙醇/水体积比、0.1 ml的氨水和0.05 g的六次甲基四胺的条件下，CFRM呈现良好的球形度和均匀的微米尺寸。通过热重分析法(TGA)考察热性能显示CFRM主链在450℃左右发生的解交联和断裂现象。
Abstract: By the modified Stöber method, cardanol-formaldehyde resin microspheres (CFRM) were pre-pared from cardanol and formaldehyde using ethanol/water mixture as solvent, ammonia as catalyst and methenamine as curing agent. The influence factors of the microstructure and size for CFRM were explored by changing synthetic conditions. The chemical structure and micro-structure were investigated by FT-IR, SEM and laser dynamic light-scattering (DLS) method, re-spectively. The results showed that CFRM exhibited good sphericity and uniform micron size under the molar ratio of cardanol to formaldehyde at 1:1.5, the ratio of ethanol to water at 2:5 (v/v), 0.1 ml of ammonia water and 0.05 g of methenamine. The thermal behavior of CFRM showed that the main chain of CFRM was decross-linked and broken at round 450˚C from TGA.
文章引用：荀瑞芝, 童跃进, 吴桂平, 关怀民. 腰果酚基酚醛树脂微球制备方法的研究[J]. 化学工程与技术, 2020, 10(2): 103-110. https://doi.org/10.12677/HJCET.2020.102015

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