Studies on Manufacturing, Mechanical Properties and Structure of Poly(butylene adipate-co-terephthalate)-based Green Composites Modified by Coconut Fibers

Malinowski, Rafał; Krasowska, Katarzyna; Sikorska, Wanda; Moraczewski, Krzysztof; Kaczor, Daniel; Kosmalska, Daria; Królikowski, B.

doi:10.1007/s40684-019-00171-9

Cited by 10 publications

(9 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polylactide is more and more commonly used in the production of composites reinforced with lignocellulosic fillers of natural origin [34][35][36][37] as well as in the production of blends with different polymers characterized by a significantly higher recommended processing temperature [38][39][40] or in contrast those more susceptible to thermal degradation [41,42]. The most commonly used technology for manufacturing biopolymers and their composites at an industrial scale is co-rotating twin-screw extrusion, due to its high throughput and mixing efficiency [43,44].…”

Section: Introductionmentioning

confidence: 99%

Correlation between Processing Parameters and Degradation of Different Polylactide Grades during Twin-Screw Extrusion

et al. 2020

View full text Add to dashboard Cite

This article presents the effect of twin-screw extrusion processing parameters, including temperature and rotational speed of screws, on the structure and properties of four grades of polylactide (PLA). To evaluate the critical processing parameters for PLA and the possibilities for oxidative and thermomechanical degradation, Fourier-transform infrared spectroscopy (FT-IR), oscillatory rheological analysis, and differential scanning calorimetry (DSC) measurements were used. The influence of degradation induced by processing temperature and high shearing conditions on the quality of the biodegradable polyesters with different melt flow indexes (MFIs)was investigated by color analysis within the CIELab scale. The presented results indicate that considering the high-temperature processing of PLA, the high mass flow index and low viscosity of the polymer reduce its time of residence in the plastifying unit and therefore limit discoloration and reduction of molecular weight due to the degradation process during melt mixing, whereas the initial molecular weight of the polymer is not an essential factor.

show abstract

Section: Introductionmentioning

confidence: 99%

Correlation between Processing Parameters and Degradation of Different Polylactide Grades during Twin-Screw Extrusion

et al. 2020

View full text Add to dashboard Cite

show abstract

“…compares the elastic modulus in this study and those reported in the literature. [31,34,35,39,45,47,[54][55][56][57][58][59][60][61][62][63] The mechanical properties of the PBAT composites prepared with largesize reeds in this study were much better than those reported in the literature for the powder-filled biomass. However, with the use of reed at 30%, the tensile strength, elongation, and impact properties of the composites decreased from 16.5 ± 0.1 MPa, 822.0 ± 0.1%, and 26.2 ± 1.1 kJ/m 2 to 11.9 ± 0.2 MPa, 27.9 ± 1.8%, and 17.6 ± 0.9 kJ/m 2 .…”

Section: Properties Of Pbat/reed Compositesmentioning

confidence: 86%

“…Figure 3B compares this study's tensile strength and elongation and those reported in the literature. [36,41,47,54,62,64,65] Even if the incorporation of large-sized reeds also caused a decrease in the toughness of the PBAT material, it appears to maintain a higher toughness than powder-filled composites. The excellent overall mechanical properties provided a promising application for composites in profiles and other applications.…”

Section: Properties Of Pbat/reed Compositesmentioning

confidence: 99%

See 1 more Smart Citation

Effect of large sized reed fillers on properties and degradability of PBAT composites

Xie

Huang

et al. 2023

Polymer Composites

View full text Add to dashboard Cite

In this paper, large‐size reeds were introduced into PBAT to prepare high‐performance biodegradable composites by high‐speed blending without compatibilizer. Subsequently, the effects of large‐size reeds on the composite properties and biodegradation behavior were further investigated. The length of the reed in composites reaches to ~1.88 mm. It was found that all composites showed larger modulus and flexural strength than PBAT, and a significant increase in heat deflection temperature. By mixing 60% reed and PBAT, the bending strength, bending modulus, and heat deflection temperature reached 23.9 ± 0.4 MPa, 1237 ± 143 MPa, and 71.8°C, respectively. Biodegradation tests showed that the primary bond‐breaking site of PBAT was the C=O group. Compared with pure PBAT, the composites exhibited more significant mass loss, decreased thermal stability, increased melting point, and decreased crystallinity during degradation. A surface erosion degradation model for the composites was proposed. The research provides a scientific basis for applying high‐performance biodegradable composites to biodegradable blister and injection molded products.

show abstract

“…The reuse of residues incorporated as components in production processes is aligned with sustainability principles, being the second most cited term in articles regarding the circular economy concept after “recycling.” [ 20 ] Examples of initiatives in this sense are reported uses of natural residues in the manufacture of composites, such as coconut husk, [ 21,22 ] corn husk, [ 23 ] and palm fiber. [ 24 ] Composites are materials containing a matrix, which can be made of polymer, metal or ceramic, reinforced with glass, carbon, or natural fibers, for example.…”

Section: Introductionmentioning

confidence: 99%

Influence of Moisture and Hydrogen Peroxide Fiber Treatment on the Flexural Properties of Polypropylene Composites Reinforced with Unsmoked Cigarette Butts

Souza

Moroz

Cesarino

et al. 2022

Macromolecular Symposia

View full text Add to dashboard Cite

Smuggled cigarettes are seized around the world, and a correct destination is needed for this material. In this context, the Federal Revenue of Brazil (RFB) has created Ordinance n°59 of 2019 on the destination of contraband cargo seizures, to which this manuscript aims to propose a use with greater added value. The influence of two factors on the flexural properties of composite samples are studied as follows: i) the influence of prior hydrogen peroxide treatment executed on the cigarette butts (CBs), tested in composite samples made with 50% Polypropylene (PP) and 50% CBs in wt%; and ii) the influence of moisture on composites composed of 60% PP and 40% CBs in wt%, after up to 72 h immersed in water. The fiber treatment has not caused significant reduction of flexural properties in the produced composites, and all composite samples with moisture have showed greater flexural strength (FS) and flexural modulus (FM) than the dry sample. However, these bending properties can decrease as the moisture increases, so further studies are encouraged. It is demonstrated that these composites are feasible to produce, may be used in moist environments in flexural stresses and allow for fiber hydrogen peroxide treatment without significant reduction in flexural properties.

show abstract

Studies on Manufacturing, Mechanical Properties and Structure of Poly(butylene adipate-co-terephthalate)-based Green Composites Modified by Coconut Fibers

Cited by 10 publications

References 21 publications

Correlation between Processing Parameters and Degradation of Different Polylactide Grades during Twin-Screw Extrusion

Correlation between Processing Parameters and Degradation of Different Polylactide Grades during Twin-Screw Extrusion

Effect of large sized reed fillers on properties and degradability of PBAT composites

Influence of Moisture and Hydrogen Peroxide Fiber Treatment on the Flexural Properties of Polypropylene Composites Reinforced with Unsmoked Cigarette Butts

Contact Info

Product

Resources

About