JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 35 Issue 6
December 2020
Article Contents
LIU Ruixue, CHEN Jichao, LI Yingbo, et al. Study on preparation and properties of gelatin/polymethacrylic acid composite hydrogel[J]. Journal of Light Industry, 2020, 35(6): 50-59. doi: 10.12187/2020.06.007
Citation: LIU Ruixue, CHEN Jichao, LI Yingbo, et al. Study on preparation and properties of gelatin/polymethacrylic acid composite hydrogel[J]. Journal of Light Industry, 2020, 35(6): 50-59. doi: 10.12187/2020.06.007 shu

Study on preparation and properties of gelatin/polymethacrylic acid composite hydrogel

  • Received Date: 2020-03-30
  • Using nature polymer gelatin and methacrylic acid (MAA) as raw materials,and ammonium persulfate (APS) as an initiator,a gelatin/polymethacrylic acid (gelatin/PMAA) composite hydrogel was synthesized via free radical polymerization.The effects of different component mass ratios on the conductive properties,rheological properties and mechanical properties of the composite hydrogel were studied.The results showed that the conductivity of the composite hydrogels adjusted to 6.52×10-3 S/cm with the dosage of MAA increasing.The conductivity also varied with the deformation of the hydrogel,making gelatin/PMAA composite hydrogel in terms of strain sensor have great potential applications.When the gelatin/PMAA composite hydrogel contained gelatin of 12% and MAA of 10%,named G12PA10,it exhibited optimal rheological properties and mechanical properties:storage modulus G' was up to 18.0 kPa,elongation at break was 340%,and compression modulus was 2.37 MPa.As the dosage of MAA increased,the swelling equilibrium time and swelling equilibrium rate of the gelatin/PMAA composite hydrogel in deionized water were basically the same as those in PBS buffer.But when the dosage of MAA was lower,the swelling equilibrium rate of gelatin/PMAA composite hydrogel in PBS solution increased slightly.
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