In this paper，the design and synthesis of a novel multi-armed cardanol-based photosensitive resin was described. Firstly，a prepolymer（HF）with a“hard core-soft arm” structure was synthesized by ether exchange reaction using hydroxyethyl cardanol ether（HCE） and highly methyl etherified melamine formaldehyde resin（HMMM）as raw materials. The HF was thenacrylated by a one-step reaction to synthesize a multi-armed cardanol-based photosensitive acrylic resin（AHF）. The structures of HF and AHF were characterized by Fourier Transform Infrared Spectroscopy（FT-IR） and nuclear magnetic resonance spectroscopy（NMR）. The results showed that the photosensitive resin was successfully synthesized. Thereafter，a photocurable coatings was prepared by using the synthesized resin AHF. The effects of adhesion promoter content on the properties of the pendulum hardness，adhesion，pencil hardness and impact resistance of the coatings were investigated. Compared with commercial acrylic resin-bisphenol A epoxy acrylate（RY1104），amino acrylate（P170A）， urethane acrylate（6001）soybean oil epoxy acrylate（AESO），the results showed that the UV-curingcoatingspreparedw，ith AHF as matrix resin and adhesion promoter（5%）provided a better performance such aspencil hardness up to 3H，excellent gloss，adhesion and impact resistance，and strong tensile strength and high elongation at break.
TUN Zhi-Shun
,
CHEN Ze-Yu
,
LI Zhe-Nan
,
CHEN Meng-Jia
,
MENG Yu-Xian
,
LIU Jing-Cheng
,
LIU Ren
. Synthesis and Properties of Multi-Armed Cardanol-Based Photosensitive Resin[J]. Paint & Coatings Industry, 2019
, 49(11)
: 18
-23
.
DOI: 10.12020/j.issn.0253-4312.2019.11.18
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