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Chemistry and Industry of Forest Products ›› 2014, Vol. 34 ›› Issue (1): 25-30.doi: 10.3969/j.issn.0253-2417.2014.01.005

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Effects of Surfactants on Silica Encapsulating Maleopimaric Acid Glycidyl Ester Type Epoxy Resin

LIN Guang-yuan, WU Guo-min, KONG Zhen-wu   

  1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.of Forest Chemical Engineering, SFA; Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2013-03-22 Online:2014-02-25 Published:2014-03-05

Abstract: A novel microcapsule was prepared from silica encapsulating maleopimaric acid glycidyl ester type epoxy resin (MPTGE) by sol-gel process. In these microcapsules system, MPTGE was used as the core material, and tetraethyl orthosilicate(TEOS) acted as the shell material. Some ionic, nonionic, macromolecular surfactants and a rosin-basd surfactant (MP) which was synthesized from MPTGE and polyoxyalkylene were used as the stabilizer. The effects of different surfactants and concentrations on the particle size and distribution of the encapsulated microcapsules were investigated. The surface morphology, particle size and distribution of microcapsules were characterized by optical microscope, scanning electronic microscope and zeta size analyzer, respectively. Experimental results indicated that the surfactant MP synthesized from MPTGE was favorable to form TEOS encapsulating MPTGE microcapsules. The microcapsules had smooth and compact outer surface when the amount of MP was close to 16.7 %.

Key words: surfactant, microcapsules, silicone, maleopimaric acid, epoxy resin

CLC Number: