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Chemistry and Industry of Forest Products ›› 2018, Vol. 38 ›› Issue (5): 45-52.doi: 10.3969/j.issn.0253-2417.2018.05.007

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Preparation and Properties of Ultraviolet-curing Modified Rosin Methacrylate

FENG Xiaolong1, LI Xiaotong2, HUANG Lingge1, GUO Kai1   

  1. 1. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China;
    2. Patent Examination Cooperation(Henan) Center of the Patent Office, SIPO, Zhengzhou 450018, China
  • Received:2018-04-02 Online:2018-10-25 Published:2018-11-06

Abstract: Maleopimaric anhydride(MPA) was firstly synthesized by Diels-Alder addition reaction of resin acid and maleic anhydride, then the MPA reacted with hexamethylene diamine to prepare maleopimaramide acid(MPAA), finally, modified rosin methacrylate(MRMA) was synthesized via the reaction between maleopimaramide acid and glycidyl methacrylate. The chemical structure of intermediates and goal product were characterized by FT-IR and 1HNMR. The ultraviolet(UV)-curing properties of MRMA film were investigated. The results showed that MRMA was solvable in usual active acrylic esters. The results of DSC and TG showed that the glass transition temperature(Tg) of the UV-curing coating was 124.3℃ and the peak value in DTG was 418.4℃. The hardness and water-absorption of UV-curing film were 2H and below 5%, respectively. The adhesive force of UV-curing coating on polypropylene film was grade 0. The UV-curing film showed good resistances to acid, alkali, and water. All these indicated that MRMA would have a good prospect of applications for UV-curing coating, printing ink, and adhesive. The effects of the type and dosage of active diluent(AD) on UV-curing coating were also studied. The results showed that UV-curing MRMA coating with butyl acrylate(BA) as AD had good comprehensive performance. The adhesive force, tensile strength, glass transition temperature, and hardness of UV-curing MRMA/BA coating increased with the increase of MRMA content, while the elongation at break increased first and then decreased.

Key words: rosin, methacrylate, ultraviolet-curing

CLC Number: