New biobased epoxy materials from cardanol
New biobased epoxy materials from cardanol
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DOI：
10.1002/ejlt.201300193
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发表时间：
2014-01-01
影响因子：
2.7
通讯作者：
Caillol, Sylvain
中科院分区：
文献类型：
--
作者：
Jaillet, Fanny;Darroman, Emilie;Caillol, Sylvain
从腰果壳液(CNSL)中提取的工业环氧化腰果酚是一种具有有趣芳香结构的生物基环氧化反应物。对环氧化腰果酚进行了H-1、C-13核磁共振谱、体积排阻色谱和滴定分析，确定了其结构。将该环氧化腰果酚与异佛尔酮二胺、杰弗胺D400二胺反应，合成了环氧网。用差示扫描量热法、热重分析、动态力学分析等方法对按化学计量比组成的环氧网进行了表征，并与双酚A二缩水甘油醚(DGEBA)环氧网进行了比较。腰果酚基环氧材料在涂料中表现出有趣的机械和热性能。实际应用：本文中描述的反应物，即来自CNSL的环氧化腰果酚，通过与胺固化剂反应，为进一步的环氧树脂合成提供了生物基芳烃构建块。得到的环氧网是部分生物基的，可用作粘结剂和涂料。
Commercial epoxidized cardanol, from cashew nut shell liquid (CNSL), is a biobased epoxide reactant with interesting aromatic structure. Epoxidized cardanol was thoroughly analyzed using H-1 and C-13 NMR, size exclusion chromatography, and titration in order to determine the structure. This epoxidized cardanol was reacted with isophorone diamine and Jeffamine D400 diamine in order to synthesize epoxy networks. These epoxy networks, formulated in stoichiometry ratio, were characterized by differential scanning calorimetry, thermogravimetric analysis, dynamic mechanical analysis analyses and were compared to bisphenol A diglycidyl ether (DGEBA) network. Cardanol-based epoxy materials exhibit interesting mechanical and thermal properties for coatings. Practical application: The reactant described in this contribution, i.e. epoxidized cardanol from CNSL, provides biobased aromatic building blocks for further epoxy resin syntheses by reaction with amine hardeners. The obtained epoxy networks are partially biobased and may be applied as binders and coatings.