|
1
|
Du L, Yu H, Zhang B, Tang R, Zhang Y, Qi C, Wolcott MP, Yu Z, Wang J. Transparent oxygen barrier nanocellulose composite films with a sandwich structure. Carbohydr Polym 2021; 268:118206. [PMID: 34127230 DOI: 10.1016/j.carbpol.2021.118206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 05/12/2021] [Accepted: 05/12/2021] [Indexed: 11/15/2022]
Abstract
Transparent gas barrier materials have extensive applications in packaging, pharmaceutical preservation, and electronics. Herein, we designed transparent films with a symmetric sandwich structure using layer-by-layer assembly of biaxially oriented polypropylene (BOPP) and acrylic resin (AR) followed by a cellulose nanoparticle (CNP) layer. The BOPP as a substrate created a barrier to hinder the transmission of water molecules to the adhesive AR layer and gas barrier functional CNP layer. The aspect ratio of the CNPs was shown to affect the film microstructure, resulting in different values for the oxygen transmission rate (OTR). The well-organized CNP layer exhibited lower OTR when compared with the network layer. The thickness, density, and porosity of the CNP layer exhibited correlations with OTR. The water molecules were able to flow in through an additional pathway, thus increasing the water vapor transmission rate (WVTR). Moreover, these sandwiched cellulose composite films showed excellent light transmittance and tensile strength.
Collapse
Affiliation(s)
- Lanxing Du
- College of Forestry, Hebei Agriculture University, Baoding 071000, China; College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China; Composite Materials and Engineering Center, Washington State University, Pullman, WA 99163, USA.
| | - Haonan Yu
- College of Forestry, Hebei Agriculture University, Baoding 071000, China.
| | - Bohan Zhang
- College of Forestry, Hebei Agriculture University, Baoding 071000, China.
| | - Ruilin Tang
- College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Yang Zhang
- College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Chusheng Qi
- College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Michael P Wolcott
- Composite Materials and Engineering Center, Washington State University, Pullman, WA 99163, USA.
| | - Zhiming Yu
- College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Jinwu Wang
- Forest Products Laboratory, U. S. Forest Service, Madison, WI 53726, USA.
| |
Collapse
|
|
2
|
Li Y, Tang Z, Wang W, Huang X, Lv Y, Qian F, Cheng Y, Wang H. Improving air barrier, water vapor permeability properties of cellulose paper by layer-by-layer assembly of graphene oxide. Carbohydr Polym 2021; 253:117227. [PMID: 33278987 DOI: 10.1016/j.carbpol.2020.117227] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 10/05/2020] [Accepted: 10/08/2020] [Indexed: 12/01/2022]
Abstract
A paper-based packaging material with improved air barrier and water vapor permeability (WVP) properties was synthesized based on layer-by-layer assembly consisted of poly(ethylenimine) (PEI)/graphene oxide (GO) on a filter paper substrate. The effect of the pH of GO suspension on the zeta potential and air permeability (AP) of the modified paper was investigated in detail. The results indicated that the pH of GO suspension resulted in significant difference in the AP of the modified paper. Compare with the pristine paper, the AP of the modified paper with (PEI/GO)10 multilayer films synthesized at pH 2.5 decreased by 99.99 %, while the WVP increased by 15.82 %. The modified paper as packaging material could prolong the shelf-life of oyster mushroom, indicating the modified paper has huge potential application on the preservation of agricultural products.
Collapse
Affiliation(s)
- Yufeng Li
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China; College of Agriculture and Forestry, Hebei North University, Zhangjiakou 075000, Hebei, China
| | - Zongjun Tang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Wenlin Wang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Xiong Huang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Yanna Lv
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Fang Qian
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Yi Cheng
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China.
| | - Haisong Wang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China.
| |
Collapse
|