Ke Shi^1,2, Luyang Wang^1,2, Ruige Qi^1,2, Chunxia He^1,2,*

Journal of Renewable Materials, Vol.10, No.5, pp. 1257-1268, 2022, DOI:10.32604/jrm.2022.017891

Abstract This work was aim to prepare a packing material from natural resources to reduce the environment pollution caused by plastics. Four bio-adhesives (guar gum, sodium alginate, agar and chitosan) were combined with lotus leaf fibers to prepare degradable composites, respectively. The mechanical properties, moisture absorption profiles and the thermal conductivity of the composites were studied and the cross section morphology and the thermal properties of the composites were analyzed. The Fourier-transform infrared spectroscopy (FTIR) results showed that the polar groups such as –OH and –COO^– in bio-adhesives can form hydrogen bond with –OH in lotus leaf fibers to connect the… More >

Juanli Wang¹, Ming Cao², Jiaxin Li¹, Kaiyuan Li¹, Xiaolian Chao¹, Bingjie Mai¹, Yuhu Li^1,*, Jing Cao^1,*

Journal of Renewable Materials, Vol.10, No.4, pp. 1125-1136, 2022, DOI:10.32604/jrm.2022.018147

Abstract Paper packaging materials like cardboards are widely used to protect archives which are a major kind of cultural relics. Unfortunately, paper is a combustible material, and thus exploring environment-friendly flame retardant for paper-based archive packaging material plays an important role. Herein, boric acid, borax and disodium octaborate are used to modify the craft paper-based packaging materials for archive conservation to improve fire safety. The modified craft paper exhibits much higher flame retardancy than the pristine one dose based on vertical burning tests, without much influence on mechanical properties such as tensile strength and elongation at break. Thermogravimetric analysis (TGA), scanning… More > Graphic Abstract

Jingjing Liao^1,2, Jinxing Li², Hongyan Wang³, Yan Zhu², Hisham Essawy⁴, Guanben Du^1,2,*, Xiaojian Zhou^2,*

Journal of Renewable Materials, Vol.10, No.1, pp. 19-31, 2022, DOI:10.32604/jrm.2021.016152

Abstract The current work explores the potential use of commercial Chinese bayberry tannin (BT) to develop antioxidant PVA-based films using solvent casting process for packaging applications. The effect of BT concentration on opacity, water resistance and antioxidant capacity of resulting films was investigated. Properties like tensile strength, thermal behavior, and morphological aspects were also characterized. The experimental results showed that PVA/BT films formed with uniformly brown color and generally good transparency, offering good antioxidant ability. The PVA film containing BT presented slightly higher water resistance according to the results of moisture content and water vapor permeability, especially at low BT content… More > Graphic Abstract

M. Čekon^*, K. Struhala, R. Slávik

Journal of Renewable Materials, Vol.5, Suppl.1, pp. 84-93, 2017, DOI:10.7569/JRM.2017.634135

Abstract Cardboard-based packaging components represent a material that has significant potential as a renewable source for exploitation in buildings. This study presents the results of thermal and environmental analyses of existing packaging materials compared with standard conventional thermal insulations.
Experimental measurements were performed to identify the thermal performance of studied cardboard packaging materials. Real-size samples were experimentally tested in laboratory measurements. The thermal resistance and conductivity of all the analyzed samples were measured according to the procedure indicated in the ISO8032 standard. A life-cycle assessment according to ISO 14040 was also performed to evaluate the environmental impacts related to the… More >