Mechanical, fire, and smoke behaviour of hybrid composites based on polyamide 6 with basalt/carbon fibres

Mazur, Karolina; Kuciel, Stanisław; Sałasińska, Kamila

doi:10.1177/0021998319853015

Cited by 19 publications

(10 citation statements)

References 28 publications

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“…This effect was more intense in WF than BF; composites with BF had a similar mass at all incubation times, and after 28 days, gained only approximately 0.6 wt%. This result indicates a low ability of BF to absorb water, which is confirmed in other studies as well [39]. In comparison with WF, in which the level of absorbed water increased with an increase in filler content, BFs had several times lower water-absorbing capacity and were stable throughout the whole immersion period.…”

Section: Hydrolytic Degradationsupporting

confidence: 84%

The Influence of Wood and Basalt Fibres on Mechanical, Thermal and Hydrothermal Properties of PLA Composites

2020

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In this study, biodegradable biocomposites based on polylactide with basalt fibres (BFs) or wood fibres (WFs) of 7.5 or 15 wt% were prepared by injection moulding. Various tests, including tensile test, bending test and impact test, were carried out to investigate the mechanical properties of the composites. Additionally, the samples were tested at different temperatures. Depending on the type of fibre, differences were noted in their mechanical properties; the addition of WF caused a decrease in strength and the higher the fibre content, the higher the decrease was noted from 18% up 25% in the case of tensile strength. However, the Young modulus was improved by 45% for composites with 15 wt% of WF. The addition of BF improved all the properties, especially Young modulus was improved by over 45%. Despite the low strength observed in neat polylactide at high temperatures-394 MPa, the addition of WF or BF improved the flexural strength more than twofold up to 1684 MPa (PLA/15BF). Moreover, the addition of natural fibres caused an increase in dimensional stability as shown by the decrease of the coefficient of thermal expansion which dropped over 50% for composites with 15 wt% of BF, which significantly expands the areas of use of materials. After 4 weeks of biodegradation, only a slight decrease approximately 5% was observed in the mechanical properties together with an increase in crystallinity. Overall, the results confirm that the prepared composites can be successfully used in engineering applications with long-term operation.

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Section: Hydrolytic Degradationsupporting

confidence: 84%

The Influence of Wood and Basalt Fibres on Mechanical, Thermal and Hydrothermal Properties of PLA Composites

2020

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“…The BF-POM interface appearance suggests a lack of strong adhesion between the matrix resin and the fiber surface. However, this problem occurs also for many other types of BF/thermoplastic polymer composites [84][85][86].…”

Section: Structure Evaluation-scanning Electron Microscopy Observatiomentioning

confidence: 99%

The Influence of the Hybridization Process on the Mechanical and Thermal Properties of Polyoxymethylene (POM) Composites with the Use of a Novel Sustainable Reinforcing System Based on Biocarbon and Basalt Fiber (BC/BF)

et al. 2020

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The presented work focuses on the assessment of the material performance of polyoxymethylene (POM)-based composites reinforced with the use of a biocarbon/basalt fiber system (BC/BF). The use of BC particles was aimed at eliminating mineral fillers (chalk, talc) by using fully biobased material, while basalt fibers can be considered an alternative to glass fibers (GF). All materials were prepared with the same 20% filler content, the differences concerned the (BC/BF) % ratio. Hybrid samples with (25/75), (50/50), and (75/25) ratios were prepared. Additionally, reference samples were also prepared (POM BC20% and POM BF20%.). Samples prepared by the injection molding technique were subjected to a detailed analysis of mechanical properties (static tensile and Charpy impact tests), thermomechanical characteristics (dynamic mechanical thermal analysis—DMTA, heat deflection temperature - HDT), and thermal and rheological properties (DSC, rotational rheometer tests). In order to assess fiber distribution within the material structure, the samples were scanned by a microtomography method (μCT). The addition of even a significant amount of BC particles did not cause excessive material brittleness, while the elongation and impact strength of all hybrid samples were very similar to the reference POM BF20% sample. The tensile modulus and strength values appear to be strictly dependent on the increasing BF fiber content. Thermomechanical analysis (DMTA, HDT) showed very similar heat resistance for all hybrid samples; the results did not differ from the values for the POM BF20 sample.

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“…On the other hand, the use of fillers and additives is currently a promising approach for improving the range of possible applications of this type of biopolymers [ 18 ]. Currently, a large number of these are used such as silicate clays [ 19 ], carbon black [ 20 , 21 ], graphite [ 22 , 23 ], graphene [ 24 ] or fibers [ 25 , 26 ], with the aim of improving and modifying some properties of polyamides to obtain tailored properties. Moreover, it is necessary to bear in mind that one of the main targets of the polymer industry is to obtain fully renewable and natural products, so that, the search for these products is of key importance [ 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Injection-Molded Parts of Partially Biobased Polyamide 610 and Biobased Halloysite Nanotubes

et al. 2020

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This works focuses on the development of environmentally friendly composites with a partially biobased polyamide 610 (PA610), containing 63% biobased content, and a natural inorganic filler at the nanoscale, namely, halloysite nanotubes (HNTs). PA610 composites containing 10, 20, and 30 wt% HNTs were obtained by melt extrusion in a twin screw co-rotating extruder. The resulting composites were injection-molded for further characterization. The obtained materials were characterized to obtain reliable data about their mechanical, thermal, and morphological properties. The effect of the HNTs wt% on these properties was evaluated. From a mechanical standpoint, the addition of 30 wt% HNTs gave an increase in tensile modulus of twice the initial value, thus verifying how this type of natural load provides increased stiffness on injection molded parts. The materials prepared with HNTs slightly improved the thermal stability, while a noticeable improvement on thermomechanical resistance over a wide temperature range was observed with increasing HNTs content. The obtained results indicate that high biobased content composites can be obtained with an engineering thermoplastic, i.e., PA610, and a natural inorganic nanotube-shaped filler, i.e., HNTs, with balanced mechanical properties and attractive behavior against high temperature.

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Mechanical, fire, and smoke behaviour of hybrid composites based on polyamide 6 with basalt/carbon fibres

Cited by 19 publications

References 28 publications

The Influence of Wood and Basalt Fibres on Mechanical, Thermal and Hydrothermal Properties of PLA Composites

The Influence of Wood and Basalt Fibres on Mechanical, Thermal and Hydrothermal Properties of PLA Composites

The Influence of the Hybridization Process on the Mechanical and Thermal Properties of Polyoxymethylene (POM) Composites with the Use of a Novel Sustainable Reinforcing System Based on Biocarbon and Basalt Fiber (BC/BF)

Injection-Molded Parts of Partially Biobased Polyamide 610 and Biobased Halloysite Nanotubes

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