林产化学与工业2026，Vol.46Issue(2)：121-129,9.DOI:10.20195/j.issn.0253-2417.2025002
多酚型改性腰果酚涂层的制备及性能研究
Preparation and Performance of Polyphenolic Modified Cardanol Coatings
摘要
Abstract
Cardanol-based benzoxazine was prepared via the Mannich reaction using cardanol(CL)as raw material,and it was further subjected to a ring-opening reaction with cardanol to synthesize high bio-based-content polyphenolic(bisphenolic and tetraphenolic)modified cardanol resins.The obtained resins were then formulated into thermosetting coatings using copper N,N'-ethylenebis(salicylideneimine)(Cu-salen)as a drier.The chemical structures of the synthesized products were characterized by Fourier transform infrared(FT-IR)and 1H nuclear magnetic resonance spectroscopy(1H NMR),while the composition,surface morphology and thermophysical-mechanical properties of the coating samples were characterized by X-ray photoelectron spectroscopy(XPS),scanning electron microscopy(SEM)and dynamic thermomechanometry analysis(DMA).The effects of the type of polyphenolic cardanol and Cu-salen loading on coating performance were examined.The results showed that the phenolic hydroxyl group of cardanol chelated with Cu2+,while the unsaturated bonds in the side chain formed a cured film through crosslinking reactions.The storage modulus of the film increased with the increases of drier content and the number of phenolic hydroxyl groups.Among the samples,tetra-cardanol with 5％Cu-salen(T-CL-Cu5)exhibited the highest storage modulus,reaching 2 303 MPa.Under conditions of 120 ℃ and 18 h,the bisphenolic cardanol coating with 5％Cu-salen achieved completely drying,with a pencil hardness of 6H and an adhesion grade of 1,whereas the tetraphenol-type coating reached full cure within just 7 h.With the increase of the drier amount,the surface morphology of the coating became smoother and more uniformed.Compared with the natural lacquer film,the hardness,adhesion and gloss of the modified cardanol coating doped with Cu-salen were further improved.关键词
腰果酚/Mannich反应/催干剂/涂层性能Key words
cardanol/Mannich reaction/drier/coating performance分类
化学化工引用本文复制引用
唐开心,崔文佳,张佳瑞,张利,席婵娟,武海棠..多酚型改性腰果酚涂层的制备及性能研究[J].林产化学与工业,2026,46(2):121-129,9.基金项目
国家重点研发计划资助项目(2023YFF0906905) （2023YFF0906905）
