Natural lignocellulosic nanofibril film with excellent ultraviolet blocking performance and robust environment resistance

Huiyang Bian; Lidong Chen; Maolin Dong; Luying Wang; Ruibin Wang; Xuelian Zhou; Chen Wu; Xiu Wang; Xingxiang Ji; Hongqi Dai

doi:10.1016/j.ijbiomac.2020.11.037

Natural lignocellulosic nanofibril film with excellent ultraviolet blocking performance and robust environment resistance

Int J Biol Macromol. 2021 Jan 1:166:1578-1585. doi: 10.1016/j.ijbiomac.2020.11.037. Epub 2020 Nov 9.

Authors

Huiyang Bian¹, Lidong Chen², Maolin Dong², Luying Wang², Ruibin Wang³, Xuelian Zhou³, Chen Wu², Xiu Wang², Xingxiang Ji⁴, Hongqi Dai⁵

Affiliations

¹ Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China; Joint International Research Lab of Lignocellulosic Functional Materials, Nanjing Forestry University, Nanjing 210037, China.
² Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.
³ Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; Joint International Research Lab of Lignocellulosic Functional Materials, Nanjing Forestry University, Nanjing 210037, China.
⁴ State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China. Electronic address: xxjt78@163.com.
⁵ Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China. Electronic address: hgdhq@njfu.edu.cn.

PMID: 33181218
DOI: 10.1016/j.ijbiomac.2020.11.037

Abstract

Due to the current state of ozone layer depletion and potential risk of skin cancer, researches on sustainable cellulose-based films with ultraviolet (UV) blocking capabilities has attracted widespread attention. However, pure cellulose-based film required UV absorbent to be incorporated because of its poor UV blocking ability. In this work, natural lignocellulosic nanofibril (LCNF) film was fabricated by vacuum filtration and pressing process without any complex chemical modification or adding UV absorbers. The residual lignin retained in LCNF was found to act as natural macro-molecular UV absorber. LCNF film with lignin content of 4.89-15.68% exhibited excellent thermal stability, and their UVA and UVB blocking were in the range of 81.4-99.5% and 96.7-100%, respectively. Moreover, LCNF film exhibited stable UV shielding performance under high temperature, UV irradiation, acidic or alkaline conditions, providing LCNF film with a long-term use capacity. Overall, LCNF film is more environmentally friendly and harmless, which shows high potentials in anti-counterfeiting materials, UV protection, and windshields for vehicles.

Keywords: Film; Lignocellulosic nanofibril; Ultraviolet blocking.

MeSH terms

Absorption, Radiation
Lignin / chemistry*
Nanofibers / chemistry*
Sunscreening Agents / chemistry*
Ultraviolet Rays*

Substances

Sunscreening Agents
lignocellulose
Lignin