富马海松酸环氧树脂的制备及漆膜性能研究

Study on synthesis and coating properties of fumaropimaric acid epoxy resin

摘要:

通过松香(RA)与富马酸(FA)高温下的D-A反应合成了富马海松酸(FPA)，并利用碳谱(13CNMR)、电喷雾质谱(ESI-MS)、红外光谱(IR)对其进行了表征；通过FPA与丁二醇二缩水甘油醚(BDGE)、己二醇二缩水甘油醚(HDGE)的酯化反应合成了松香基环氧树脂预聚体(FB、FH)，测试了预聚体与固化剂不同配比下固化物的漆膜性能；结果表明，当n活性氢/n环氧基在1.0、1.2时，漆膜的硬度大于HB，附着力小于2级，T-弯试验小于2T，耐冲击强度大于9.8J，耐化学性能良好。

Abstract:

Fumaropimaric acid was synthesized via D-A reaction of rosin acid and fumaric acid, and was characterized by 13CNMR spectroscopy, electrospray mass spectrometry and infrared spectrum. Then through esterification between FPA and 1,4-butanediol diglycidylether (or 1,6-hexanediol diglycidylether), epoxy prepolymer was prepared. The prepolymer and hardner were blended at different ratio and the coating properties of the cured resins were tested. When the molar ratio of activated hydrogen and epoxy group (n activated hydrogen /n epoxy group) was 1.0 or 1.2, the coating with good properties can be obtained. The experimental results were shown as follows: hardness, more than HB; adhesion testing, less than 2; T-Bend, less than 2T; impact resistance, more than 9.8J; chemical resistance, passed.