Effect of different chemical surface treatments on interfacial compatibility and properties of polyhydroxyalkanoates/coffee grounds composites

Tang, Lei; Hou, Xue; Wang, Jun; Pan, Liao

doi:10.1002/pc.27162

Cited by 4 publications

(4 citation statements)

References 42 publications

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“…As FTIR accurately determines the chemical composition of materials in terms of fucntinal groups analysis, 39 the prepared PET and modified PET fibers were subjected to FTIR analysis and the resulting spectra are shown in Figure 2A. The PDA-PET fibers, which offer active sites through forming a PDA layer via self-polymerization, exhibit a distinct peak at 1382 cm À1 compared to the pristine PET fibers, which is attributed to the C-N bonding from PDA.…”

Section: Chemical Characteristics Of Fibermentioning

confidence: 99%

Investigating the adhesion and rheological properties of metal organic framework incorporated polyester fiber/zeolite imidazolium salt framework‐67‐modified asphalt composite

He,

Ren,

Muhammad

et al. 2023

Polymer Composites

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Utilizing efficient and cost‐effective modifiers is essential for the development of high‐performance asphalt materials. In this study, a polydopamine (PDA) chelated cobalt ion (Co2+)‐assisted in situ growth strategy was employed to anchor nanoporous zeolite imidazolium salt framework‐67 (ZIF‐67) on polyester (PET) fiber substrates for the preparation of styrene‐butadiene‐styrene block copolymer‐modified asphalt (SBS‐MA). Experimental results indicated that optimal fiber incorporation of 1.5% led to the best interfacial interaction at the modified asphalt fracture section. ZIF‐67 nanoporous structure acted as an organic–inorganic hybridization interfacial layer to enhance the fiber–asphalt interfacial interaction. The adhesion work of the modified fiber with SBS‐MA increased by 42.12%. Furthermore, the adhesion work, peeling work, and compatibility ratio of modified asphalt with aggregates were also improved. Similarly, the complex modulus of the 1.5% ZIF‐67–PDA–PET/SBS‐MA at 46°C was increased by 131.30% in comparison with that of the pristine SBS‐MA. More importantly, the synergistic effect of the highly thermally stable PET fibers and ZIF‐67 nanocrystals improved the thermal decomposition of SBS‐MA. These results suggest that ZIF‐67–PDA–PET fiber holds great promise for application in designing novel materials for the construction industry.

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Section: Chemical Characteristics Of Fibermentioning

confidence: 99%

Investigating the adhesion and rheological properties of metal organic framework incorporated polyester fiber/zeolite imidazolium salt framework‐67‐modified asphalt composite

He,

Ren,

Muhammad

et al. 2023

Polymer Composites

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“…As a consequence of the global consumption of coffee beverages, an enormous quantity of coffee waste is generated. 4 Scientific reports indicate that a staggering 6 million tons of coffee waste is produced annually on a global scale. 5 Byproducts through green coffee processing and roasting are produced from the coffee industry.…”

Section: Introductionmentioning

confidence: 99%

“…In the process of producing a cup of coffee, approximately 50% of the coffee beans end up as waste. As a consequence of the global consumption of coffee beverages, an enormous quantity of coffee waste is generated 4 . Scientific reports indicate that a staggering 6 million tons of coffee waste is produced annually on a global scale 5 .…”

Section: Introductionmentioning

confidence: 99%

Enhancement of spent coffee grounds as biofiller in biodegradable polymer composite for sustainable packaging

Alharbi,

Bairwan,

Rizg

et al. 2024

Polymer Composites

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This study explores the utilization of Spent Coffee Grounds (SCG), a residual product of the coffee industry, as a microfiller reinforcement in Poly‐3‐hydroxybutyrate‐co‐3‐hydroxyvalerate (PHBV) biopolymer composites at varying concentrations (1%, 3%, 5%, and 7%). Melt compounding via a twin‐screw extruder and subsequent compression molding were employed in the fabrication process. The SCG microfiller, with particle diameters ranging from 1.11 to 1.28 μm, exhibited a significant negative charge (zeta potential: −20 mV). Hydrophobicity increased up to 5% filler concentration, as indicated by higher water contact angles, but diminished at highest concentration likelihood of agglomeration of the spent coffee grounds within the biopolymer matrix. The addition of SCG enhanced overall mechanical properties, particularly at a 5% filler concentration. Field Emission Scanning Electron Microscopy (FE‐SEM) and Atomic Force Microscopy (AFM) confirmed the successful incorporation of SCG microfiller, improving structural characteristics. Schematic drawings illustrated the interphase bonding of microfiller and matrix. However, properties diminished at the highest filler content (7%) due to coffee grounds' agglomeration. Despite this, SCG incorporation enhanced functional properties, making the biopolymer composite a promising material for sustainable packaging and various applications.Highlights Enhancement of properties of spent coffee grounds in PHBV biocomposites. Characterization of Biocomposites for multifunctional properties. Fracture and 2D analysis of the tensile fractured surface of biocomposites. A promising material for sustainable and biodegradable packaging.

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“…Wu et al [24] found that the mechanical properties of CG/polypropylene (PP) composites were slightly improved after oil extraction. Tang et al [25] reported that the tensile strength of CG composites treated with 10 wt% sodium hydroxide (NaOH) increased by 12.61% compared to polyhydroxyalkanoates (PHA)/CG composites. Moustafa et al [26] utilized torrefied CGs as reinforcing agents for polybutylene adipate terephthalate (PBAT).…”

Section: Introductionmentioning

confidence: 99%

Bioinspired Tannic Acid-Modified Coffee Grounds as Sustainable Fillers: Effect on the Properties of Polybutylene Adipate Terephthalate Composites

et al. 2023

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Preparing composites from gricultural waste with biodegradable polymers is one of the strategies used to ensure the long-term sustainability of such materials. However, due to the differences in their chemical properties, biomass fillers often exhibit poor interfacial adhesion with polymer matrices. Inspired by mussel foot silk, this work focused on the surface modification of coffee grounds (CGs) using a combination of tannic acid (TA) and alkali treatment. CGs were used as a biomass filler to prepare polybutylene adipate terephthalate (PBAT)/CG composites. The modification of CGs was demonstrated by Fourier transform infrared spectroscopy (FTIR), the water contact angle, and scanning electron microscopy (SEM). The effect of CGs on the rheological, tensile, and thermal properties of the PBAT/CG composites was investigated. The results showed that the addition of CGs increased the complex viscosity, and the surface modification enhanced the matrix–filler adhesion. Compared with unmodified CG composites, the tensile strength and the elongation at break of the composite with TA-modified alkali-treated CGs increased by 47.0% and 53.6%, respectively. Although the addition of CGs slightly decreased the thermal stability of PBAT composites, this did not affect the melting processing of PBAT, which often occurs under 200 °C. This approach could provide a novel method for effectively using biomass waste, such as coffee grounds, as fillers for the preparation of polymer composites.

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Effect of different chemical surface treatments on interfacial compatibility and properties of polyhydroxyalkanoates/coffee grounds composites

Cited by 4 publications

References 42 publications

Investigating the adhesion and rheological properties of metal organic framework incorporated polyester fiber/zeolite imidazolium salt framework‐67‐modified asphalt composite

Investigating the adhesion and rheological properties of metal organic framework incorporated polyester fiber/zeolite imidazolium salt framework‐67‐modified asphalt composite

Enhancement of spent coffee grounds as biofiller in biodegradable polymer composite for sustainable packaging

Bioinspired Tannic Acid-Modified Coffee Grounds as Sustainable Fillers: Effect on the Properties of Polybutylene Adipate Terephthalate Composites

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