Tailoring lightweight, mechanical and thermal performance of PLA/recycled HDPE biocomposite foams reinforced with kenaf fibre

Hassan, Nur Adilah Abu; Ahmad, Sahrim; Chen, Ruey Shan; Shahdan, Dalila; Kassim, Mohamad Haafiz Mohamad

doi:10.1016/j.indcrop.2023.116632

Cited by 18 publications

(9 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A similar observation was reported by Sun et al ( 2023 ) with an increase in the rice husk from 5 to 30 wt% in the PLA-maleic anhydride copolymer more uneven and large cavities are produced in the foams due to rice fibre agglomeration reducing the surface adhesion with PLA matrix. Comparable, micro-sized pores in the open cell structure were reported in PLA/rHDPE/kenaf fibre composites (Hassan et al 2023 ). Moreover, the major toxic compounds present in CM such as glucosinolates (decomposition at 99 o C) and phytates (decomposition at 150 o C) are heat labile and degrade at the extrusion temperature of 175–180 o C. The PLA-CM foams can safely be used in non-food contact packaging applications.…”

Section: Resultsmentioning

confidence: 76%

“…To reduce the cost without compromising the material properties a portion of PLA can be replaced with low-cost non-food natural materials as a filler such as flax, hemp, kenaf, henequen, banana, oil palm, jute etc. to produce PLA-based biocomposites (Dicker et al 2014 ; Zini and Scandola 2011 ; Bourmaud et al 2018 ; Siakeng et al 2019 ; Hassan et al 2023 ; Way et al 2013 ; Zhong et al 2011 ; Okubo et al 2009 ; Yu et al 2014 ; Jandas et al 2012 ; Mysiukiewicz et al 2022 ; Sun et al 2023 ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Incorporation of canola meal as a sustainable natural filler in PLA foams

Weal,

Shah,

Parker

et al. 2024

Bioresour. Bioprocess.

View full text Add to dashboard Cite

The canola oil industry generates significant waste as canola meal (CM) which has limited scope and applications. This study demonstrates the possibility of valorization of CM as a sustainable natural filler in a biodegradable polymer composite of Poly(lactic acid) (PLA). Generally, interfacial bonding between natural fibers and the polymer matrix in the composite is weak and non-uniform. One possible solution is to derivatize natural fibre to introduce interfacial bond strength and compatibility with the PLA polymer matrix. Here, CM was succinylated in a reactive extrusion process using succinic anhydride at 30 wt% to get 14% derivatization with 0.02 g of -COOH density per g of CM. The CM or succinylated CM at 5 and 15 wt% was co-extruded with amorphous PLA to get composite fibers. CM-PLA and succinylated CM-PLA biocomposites were foamed using a mild and green microcellular foaming process, with CO2 as an impregnating agent without any addition of organic solvents. The properties of the foams were analyzed using differential scanning calorimetry (DSC), Dynamic mechanical thermal analysis (DMTA), shrinkage, and imaging. The addition of CM or succinylated CM as a natural filler did not significantly change the glass transition temperature, melting point, percent crystallization, stiffness, and thermal stability of PLA foams. This suggests succinylation (modification) of CM is not a mandatory step for improving interphase compatibility with the amorphous PLA. The new PLA-CM foams can be a good alternative in the packaging industry replacing the existing petroleum-based polymer foams. Graphical Abstract

show abstract

Section: Resultsmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Incorporation of canola meal as a sustainable natural filler in PLA foams

Weal,

Shah,

Parker

et al. 2024

Bioresour. Bioprocess.

View full text Add to dashboard Cite

show abstract

“…PLA showed the characteristic signals of the ester functional group; in this way the stretching of the carbonyl group (CO) appears at 1745 cm –1 and the asymmetric and symmetric stretching of the C–O–C bond at 1178 and 1080 cm –1 , respectively. In addition, the signals corresponding to the asymmetric and symmetric stretching of the methyl group (−CH 3 ) appear at 2992 and 2948 cm –1 and the asymmetric and symmetric bending of this group at 1453 and 1363 cm –1 , respectively. , The chitosan spectrum showed the characteristic signals of hydroxyl group stretching (−OH) at 3404 cm –1 , amide-II (NH) bending at 1667 cm –1 , and amine (NH 2 ) twisting at 1569 cm –1 . On the other hand, the MA spectrum showed the signals attributed to the asymmetric and symmetric stretching of the carbonyl group at 1852 and 1780 cm –1 , respectively, as well as the asymmetric and symmetric stretching of the C–O–C bonds at 1110 and 1053 cm –1 , respectively …”

Section: Resultsmentioning

confidence: 99%

Effect of Degradation on the Physicochemical and Mechanical Properties of Extruded Films of Poly(lactic acid) and Chitosan

Flores-León,

Rodríguez-Félix,

Quiroz-Castillo

et al. 2024

ACS Omega

View full text Add to dashboard Cite

This study addresses the fabrication of extruded films using poly(lactic acid) (PLA) and chitosan, with and without maleic anhydride as a compatibilizing agent, for potential applications in disposable food packaging. These films underwent controlled conditions of UV irradiation, water condensation, and temperature variations in an accelerated weathering chamber. The investigation analyzed the effect of different exposure periods on the structural, morphological, mechanical, and thermal properties of the films. It was observed that PLA films exhibited a lower susceptibility to degradation compared to those containing chitosan. Specifically, the pure PLA film showed an increase in elastic modulus and strength during the initial 144 h of exposure, associated with cross-linking induced by UV radiation. On the other hand, film Q2 composed of PLA, chitosan, and maleic anhydride and Q1 without maleic anhydride experienced a tensile strength loss of over 50% after 244 h of exposure. The Q2 film exhibited greater homogeneity, leading to increased resistance to degradation compared to that of Q1. As the degradation time increased, both the Q1 and Q2 films demonstrated a decline in thermal stability. These films also exhibited alterations in crystallinity attributed to the chemo-crystallization process, along with fluctuations in the glass transition temperature and crystallization, particularly at 288 h.

show abstract

“…Kenaf has garnered significant interest worldwide due to its versatility and ease of cultivation compared to other fibre crops [5]. According to Hassan et al [6], this plant exhibits a wider range of adaptability to environmental conditions, climates, and soil types, making it a superior source of cellulose. Additionally, kenaf possesses excellent moisture absorption properties and is both renewable and biodegradable.…”

Section: Introductionmentioning

confidence: 99%

Cultivation Strategies of Kenaf (Hibiscus cannabinus L.) as a Future Approach in Malaysian Agriculture Industry

et al. 2023

View full text Add to dashboard Cite

In recent years, kenaf has gained significant global attention as a more cost-effective, adaptable, and manageable alternative to other fibre crops. India and China, with nearly 70% of the global kenaf production, have emerged as the leading producers of kenaf plants. While kenaf was traditionally valued for its paper production, it has evolved into a multipurpose crop with diverse industrial applications over the past two decades. Conventional soil-based cultivation methods for kenaf require up to six months for plant maturity. However, in vitro propagation techniques offer a promising alternative that enables faster growth and reduced labour costs. In vitro propagation can be achieved using solid and liquid media, with limited research available on the pure liquid culture method for kenaf. This review aims to introduce and compare the production of kenaf using solid and liquid media, with a specific focus on the emerging country of Malaysia, which seeks to harness the potential of kenaf cultivation for the 15th Sustainable Development Goal, “life on land”, and its contribution to the economy.

show abstract

Tailoring lightweight, mechanical and thermal performance of PLA/recycled HDPE biocomposite foams reinforced with kenaf fibre

Cited by 18 publications

References 46 publications

Incorporation of canola meal as a sustainable natural filler in PLA foams

Incorporation of canola meal as a sustainable natural filler in PLA foams

Effect of Degradation on the Physicochemical and Mechanical Properties of Extruded Films of Poly(lactic acid) and Chitosan

Cultivation Strategies of Kenaf (Hibiscus cannabinus L.) as a Future Approach in Malaysian Agriculture Industry

Contact Info

Product

Resources

About