高强、高透明、紫外屏蔽细菌纤维素复合膜的制备与性能

作者：He Yingzi; Zhao Xuan; Liu Tanglong; Huang Xiaofang; Peng Xinwen; Zhong Chunyan; Zhong Linxin^*

来源：China Pulp and Paper, 2023, 42(10): 1-11.

DOI：10.11980/j.issn.0254-508X.2023.10.001

• bacterial cellulose
• hydrophobic
• transparent
• UV-shielding

In this study，BC was used as the raw material，polyvinyl alcohol（PVA）/BC composite films with high transparency were pre? pared according to refractive index matching principle. Furthermore，by combining with epoxy resin（EP），the haze of the composite film re? duced due to the decreased surface roughness，the PVA/BC/EP composite film with high strength，high transparency and hydrophobicity was prepared. The results showed that the PAV/BC/EP composite film had smoother surface and denser structure than the pure BC film with low haze and high light transmittance up to 90%. The tensile strength was up to 177. 1 MPa due to the interaction between PVA，BC，and EP，and the surface hydrophobicity and hardness had been significantly improved. Further introduction of carbon quantum dots could impart the composite films with good UV-shielding property. This work provided a new possibility for the application of multifunctional film-based mate? rials with high strength，high transparency and UV-shielding. ? 2023 China Technical Association of Paper Industry.

• 单位
  华南理工大学