Study on Properties of Recycled Fiber from Waste Newspaper / PLA Composites

Li, Hui; Tong, Zhuo; Cheng, Fang Chao; Li, Xin Gong

doi:10.4028/www.scientific.net/amm.55-57.392

Cited by 1 publication

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nagarajan et al 28 prepared cellulose nanomaterials from used disposal paper cups, while Silva et al 29 used coffee grounds oil to produce radiolytic stabilized PVC. Likewise, Tong et al 30 studied the properties of recycled fiber from waste newspaper/PLA composites. It was reported that the modification of the fibers using alkali treatment effectively improved the compatibility between fibers and PLA, the mechanical properties and water absorbency of composite materials.…”

Section: Introductionmentioning

confidence: 99%

New poly(lactic acid) composites produced from coffee beverage wastes

Gama

Ferreira

Evtuguin

2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

In this study, aiming to reduce the environmental impact of plastics, new composite materials containing recycled fibers from used paper coffee cups and oil extracted from spent coffee grounds (SCG) were produced. Accordingly, the cellulose fibers were chemically modified using lactic acid to be used as poly(lactic acid) filler reinforcement. The obtained results revealed that its addition improved the mechanical properties of the ensuing composites. The addition of 30% wt/wt of unmodified and modified fibers increased the Young modulus by 53% and 72%, respectively. In addition, enhanced biodegradability was obtained due to higher water absorption (up to 4% wt/wt). In parallel, coffee oil was used as a plasticizer and the affinity between the plasticizer and polymer matrix was confirmed by the lack of phase separation, by the improved flexibility of derived materials (the addition of 40% wt/wt of plasticizer increased the elongation at break by 86%) and by the better processability of the ensuing materials (the addition of 30% wt/wt of plasticizer increased the MFI by 205%). Overall, the results suggest that the use of modified cellulose fibers and the addition of SCG oil‐based plasticizer can be promising routes to produce eco‐friendly plastics.

show abstract

Section: Introductionmentioning

confidence: 99%