Facile synthesis of cardanol-based reactive diluents and application for anti-shrinkage UV-curable resins,Journal of Applied Polymer Science

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Facile synthesis of cardanol-based reactive diluents and application for anti-shrinkage UV-curable resins
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2023-09-06 , DOI: 10.1002/app.54653
Shanyuan Tong ₁ , Yun Hu ₂ , Puyou Jia ₂ , Yufeng Ma ₃ , Qin Huang ₄ , Lihong Hu ₂ , Yonghong Zhou _{1,

2}

Affiliation

Biomass resources possessed the advantages of being natural, renewable, abundant, inexpensive, and easy to degrade. Therefore, fabricated bio-based UV-curable materials have gradually attracted much more attention, which meet the requirements of sustainable development and save petrochemical resources. In this paper, cardanol was modified to synthesize radical reactive diluent and hybrid reactive diluent by a facial method and was used to adjust the viscosity and reduce the volume shrinkage of UV-curable epoxy acrylic resin. The structure–activity properties and UV-curing kinetics of the obtained UV-curable materials were clarified, and the anti-shrinkage mechanism was also explored. In addition, the obtained cardanol-based materials were compared with petroleum based diluent methyl methacrylate (MMA) and application for UV-curable coatings. The volume shrinkage of the cardanol-based reactive diluents was 3.5% and 2.1%, respectively, which were lower than MMA (4.6%). The CC conversion of the cardanol-based reactive diluent exhibited the highest value of 79.6%. This work provided a specific theoretical basis for the subsequent design and application of bio-based UV-curable resins. It is of certain significance to the alleviation of the shortage of petrochemical resources and the sustainable development of the UV-curable coating industries.

中文翻译：

腰果酚基活性稀释剂的简便合成及其在抗收缩紫外光固化树脂中的应用

生物质资源具有天然、可再生、丰富、廉价、易降解等优点。因此，制备生物基紫外光固化材料逐渐引起人们的广泛关注，以满足可持续发展的要求，并节省石化资源。本文通过面部法对腰果酚进行改性，合成自由基活性稀释剂和杂化活性稀释剂，并用于调节UV固化环氧丙烯酸树脂的粘度和降低体积收缩。阐明了所得紫外光固化材料的结构活性特性和紫外固化动力学，并探讨了其抗收缩机理。此外，还将所得腰果酚基材料与石油基稀释剂甲基丙烯酸甲酯（MMA）进行了比较，并在紫外光固化涂料中得到应用。腰果酚基活性稀释剂的体积收缩率分别为 3.5% 和 2.1%，低于 MMA (4.6%)。腰果酚基活性稀释剂的C→C转化率最高，为79.6%。该工作为后续生物基紫外光固化树脂的设计和应用提供了具体的理论基础。对于缓解石化资源短缺和紫外光固化涂料行业的可持续发展具有一定意义。

更新日期：2023-09-06

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