TY - JOUR
T1 - Ecofriendly UV-protective films based on poly(propylene carbonate) biocomposites filled with TiO2 decorated lignin
AU - Wu, Wei
AU - Liu, Tao
AU - Deng, Xueqin
AU - Sun, Qijun
AU - Cao, Xianwu
AU - Feng, Yanhong
AU - Wang, Bin
AU - Roy, Vellaisamy A.L.
AU - Li, Robert K.Y.
N1 - Publisher Copyright:
© 2019
PY - 2019/4/1
Y1 - 2019/4/1
N2 - It is highly desirable to develop biodegradable UV-shielding materials from the renewable resources as the ever-increasing demand for the sustainable environment. In this work, TiO2 decorated lignin particles (TiO2@lignin) were synthesized successfully by hydrothermal method in aqueous solution to improve the UV shielding performance of lignin particles. The poly(propylene carbonate) (PPC) composite films (thickness of ~23 μm) with different contents of TiO2@lignin were prepared via a blade-casting method. Morphological analysis showed that the TiO2@lignin dispersed uniformly in the PPC matrix with a good miscibility. UV–vis transmission spectra results revealed that the PPC composite film containing 5 wt% TiO2@lignin could absorb about 90% of UV light in the full UV band (200–400 nm), indicating the TiO2@lignin had a good UV-shielding property. Moreover, the presence of TiO2@lignin could significantly improve the thermal stability of the PPC/TiO2@lignin composite films. The DMA results showed that the introduction of TiO2@lignin could enhance the storage modulus and glass transition temperature simultaneously.
AB - It is highly desirable to develop biodegradable UV-shielding materials from the renewable resources as the ever-increasing demand for the sustainable environment. In this work, TiO2 decorated lignin particles (TiO2@lignin) were synthesized successfully by hydrothermal method in aqueous solution to improve the UV shielding performance of lignin particles. The poly(propylene carbonate) (PPC) composite films (thickness of ~23 μm) with different contents of TiO2@lignin were prepared via a blade-casting method. Morphological analysis showed that the TiO2@lignin dispersed uniformly in the PPC matrix with a good miscibility. UV–vis transmission spectra results revealed that the PPC composite film containing 5 wt% TiO2@lignin could absorb about 90% of UV light in the full UV band (200–400 nm), indicating the TiO2@lignin had a good UV-shielding property. Moreover, the presence of TiO2@lignin could significantly improve the thermal stability of the PPC/TiO2@lignin composite films. The DMA results showed that the introduction of TiO2@lignin could enhance the storage modulus and glass transition temperature simultaneously.
KW - Lignin
KW - Poly(propylene carbonate)
KW - Thermal stability
KW - TiO
KW - UV-shielding
UR - http://www.scopus.com/inward/record.url?scp=85059628851&partnerID=8YFLogxK
U2 - 10.1016/j.ijbiomac.2018.12.273
DO - 10.1016/j.ijbiomac.2018.12.273
M3 - Article
C2 - 30611805
AN - SCOPUS:85059628851
SN - 0141-8130
VL - 126
SP - 1030
EP - 1036
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
ER -
