Polylactide/cellulose acetate biocomposites as potential coating membranes for controlled and slow nutrients release from water-soluble fertilizers

Assimi, Taha El; Blažic, Roko; Vidović, Elvira; Raihane, Mustapha; Meziane, Abdellatif El; Baouab, Mohamed Hassen V.; Khouloud, Mehdi; Beniazza, Rédouane; Kricheldorf, Hans R.; Lahcini, Mohammed

doi:10.1016/j.porgcoat.2021.106255

Cited by 28 publications

(11 citation statements)

References 44 publications

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“…Similar results of the incorporation of cellulose esters (cellulose acetate) weakening the PHBV moisture barrier were previously reported . Although previous research on the PLA/cellulose acetate blend reported that cellulose acetate increased the water absorption of PLA, cellulose acetate had higher hydrophilicity (lower DS, ∼0.9) and shorter side chains than CTH in this study.…”

Section: Resultscontrasting

confidence: 70%

Thermal and Barrier Characterizations of Cellulose Esters with Variable Side-Chain Lengths and Their Effect on PHBV and PLA Bioplastic Film Properties

et al. 2021

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Cellulose esters (CEs) are promising biodegradable substitutes for traditional petroleum-based plastic materials. Research on structure–property relationships of CEs is necessary to evaluate their suitability for industrial applications such as food packaging. Cellulose esters with different side-chain lengths were synthesized and studied. Their thermal and moisture barrier properties were characterized. Cellulose triheptanoate (CTH) was proved to have an optimal moisture barrier (WVTR = 0.31 g·mil/day/in.2) and was used to blend with poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and polylactic acid (PLA) bioplastics. CTH addition improved the PLA thermal stability, enhanced the ductility, and increased the moisture barrier by 32%, while it decreased the PHBV thermal stability, weakened the ductility, and reduced the moisture barrier by 90%. We demonstrated that by proper choice of the combination of CE and bioplastic, bioplastic blends with unique and useful synergistic properties can be obtained. These blends can potentially be used for commercial applications, such as biodegradable flexible packaging.

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Section: Resultscontrasting

confidence: 70%

Thermal and Barrier Characterizations of Cellulose Esters with Variable Side-Chain Lengths and Their Effect on PHBV and PLA Bioplastic Film Properties

et al. 2021

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“…The higher coating ratios (i.e., 3.00 and 4.68%) gave the PU-SFe-CRUs better performance in the slow release of nitrogen. The results were consistent with previous studies. , In the scope of coated in this experiment, the release rate of nitrogen was slower with the increase of coating ratio.…”

Section: Resultssupporting

confidence: 93%

“…The results were consistent with previous studies. 19,49 In the scope of coated in this experiment, the release rate of nitrogen was slower with the increase of coating ratio.…”

Section: Photodegradation Products Identified By Gc/msmentioning

confidence: 68%

Preparation and Properties of Bio-Based Polyurethane Controlled Release Urea Coating with Photosensitivity

et al. 2022

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In order to improve the photodegradation ability of fertilizer coating material and realize the sustainability of fertilizers, in this study, the commercially available photosensitive iron stearate (FeSt 3 ) was wet-ground into submicrometer FeSt 3 (SFeSt 3 ) particles and used in preparation of a SFeSt 3 -modified bio-based polyurethane (PU)-coated controlled release urea (PU-SFe-CRU). The results showed that after 1 month photodegradation, the coating material had significant yellowing, the oxygen content of SFeSt 3 -modified PU (PU-SFe) increased by 56.89%, and its structure became more porous and looser than PU. The thermal stability of PU-SFe decreased, and more intermediate products were produced after exposure to UV light. The germination experiment showed that PU-SFe before and after photodegradation (up to 60 mg/L) had no adverse effect on the seed germination and bud growth of rice. Additionally, PU-SFe had a significantly higher Cr adsorption capacity after photodegradation due to the increase of the oxygen-containing group and specific surface. This study provides a theoretical basis for the research and development of photodegradable environment-friendly controlled release urea.

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“…By blending PLA and CA, it is possible to prepare whole bio‐based materials, which can reduce the burden of the environment 17,18 . Adding cellulose acetate to PLA can improve flexibility, thermal stability, crystallizability, and mechanical properties of PLA 19,20 . However, the difference in polarity and hydrophobic between PLA and CA can weaken their compatibility, which subsequently influence the mechanical properties of the blends 21,22 .…”

Section: Introductionmentioning

confidence: 99%

“…17,18 Adding cellulose acetate to PLA can improve flexibility, thermal stability, crystallizability, and mechanical properties of PLA. 19,20 However, the difference in polarity and hydrophobic between PLA and CA can weaken their compatibility, which subsequently influence the mechanical properties of the blends. 21,22 Over the past several decades, researchers have made a lot of efforts to improve the compatibility of the PLA/CA blends.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of compatibilized and toughened polylactic acid/cellulose acetate films by long‐chain hyperbranched polymers

Huang

Jin

Wang

et al. 2021

J of Applied Polymer Sci

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A type of long‐chain hyperbranched polymers (LCHBPs) was prepared by grafting hydroxyl‐terminated flexible long chain onto hyperbranched polymers (HBPs). The structure of LCHBPs was confirmed by Fourier transform infrared (FT‐IR) and nuclear magnetic resonance (1H‐NMR) analysis. It was then used as the modifier for toughening and compatibilizing the polylactic acid (PLA)/cellulose acetate (CA) blends. Upon the addition of LCHBPs, the compatibility between PLA and CA was improved, the dispersion of CA particles in PLA matrix was more uniform, and the brittle‐ductile tear transition of the PLA/CA blends was occurred. The crystallization of PLA was promoted by the addition of LCHBPs. By adding LCHBPs, glass transition temperature and cold crystallization temperature were reduced, the crystallizability was enhanced, and the crystallization temperature range was expanded. The thermal decomposition temperature of the PLA/CA was found increased with the addition of LCHBPs. When the content of LCHBPs was 1 phr, the elongation at break and the tear strength of the PLA/CA blends were increased by 484% and 38.24%, respectively. Meanwhile, the thermal stability and hydrophilic properties of the blend films were improved by adding LCHBPs.

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Polylactide/cellulose acetate biocomposites as potential coating membranes for controlled and slow nutrients release from water-soluble fertilizers

Cited by 28 publications

References 44 publications

Thermal and Barrier Characterizations of Cellulose Esters with Variable Side-Chain Lengths and Their Effect on PHBV and PLA Bioplastic Film Properties

Thermal and Barrier Characterizations of Cellulose Esters with Variable Side-Chain Lengths and Their Effect on PHBV and PLA Bioplastic Film Properties

Preparation and Properties of Bio-Based Polyurethane Controlled Release Urea Coating with Photosensitivity

Preparation and characterization of compatibilized and toughened polylactic acid/cellulose acetate films by long‐chain hyperbranched polymers

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