Structure-property relationships of basalt fibers for high performance applications

Bauer, Felix; Kempf, M.; Weiland, Frank; Middendorf, Peter

doi:10.1016/j.compositesb.2018.03.028

Cited by 37 publications

(14 citation statements)

References 21 publications

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“…Moreover, it has a well-developed fibre surface that facilitates better interaction between the fibres and the matrix. All these features make BFs comparable with or even better than glass fibres and carbon fibres which are considered as the most reliable polymer additives [15]. Many studies have shown that the addition of BF renders the composites with higher mechanical and thermal properties [16].…”

Section: Introductionmentioning

confidence: 99%

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: Introductionmentioning

confidence: 99%

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

2020

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“…Bauer et al [28] have observed diameter variation for fibers of a single section of the roving (up to 16% in some cases) and in the lengthwise direction of the fiber (between 1.0% and 1.5%). In consequence, the scatter reported in this study can be attributed to the fluctuation of the process parameters.…”

Section: Effect Of Desizing On Mechanical Properties Of Basalt Fibersmentioning

confidence: 99%

Strength Loss of Basalt-Based Mineral Fibers after Thermal Desizing

Boutenel¹,

Dusserre²,

Cutard³

2020

RCMA

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This study investigates the effects of desizing by heat cleaning on tensile properties of basalt-based mineral fibers. Two heat treatments, which lead to a complete removal of the sizing layer, were considered: one at low temperature (350°C) for a long time (10 h) and one at high temperature (600°C) for a short time (35 min). Desizing greatly affects tensile strength. High temperature and short time treatment conditions lead to the most severe strength degradation (66%). SEM micrographs reveal that failure originates from surface defects. Mechanisms responsible for strength loss were investigated by X-ray diffraction analyses, density measurements and differential thermal analyses. Strength degradation is ascribed to sizing layer removal and to thermally activated structural rearrangement of basalt.

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“…Then, the tension strength of basalt fibers could be utilized. The basalt fibers-which have a tensile strength approximately 10 times higher [51][52][53] than that of birch wood [48] in its longitudinal direction-took effect. Thus, tension failures were restricted and the PVAC provided high ductility ( Figure 10).…”

Section: Impact Strengthmentioning

confidence: 99%

Basalt-Fiber-Reinforced Polyvinyl Acetate Resin: A Coating for Ductile Plywood Panels

et al. 2019

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The aim of this study was to create a reinforced composite wood-based panel that would be leaned towards the environment Plywood was used as a core material and fiber-reinforced polymer was used as a reinforcement. Conventional resin for the fiber-reinforced polymer was substituted with polyvinyl acetate (PVAC), which has several advantages, such as a lower price, easier handling, and better degradability. The second chosen component, basalt fiber, is cost attractive and environmentally friendly. The combination of one and two layers of fabric with three fiber fractions and 4 mm thick plywood was investigated. The best results were achieved with two layers of fabric and the highest fiber fraction. The improvements of the ultimate bending load and bending stiffness of the plywood in the perpendicular direction were 305% and 325%, respectively. The ultimate load and stiffness of the parallel direction were improved by 31% and 35%, respectively. However, specimens always failed in the compressional zone. The highest reinforcing effect was found with the impact test: The energy required to fracture specimens increased by 4213% and 6150% for one and two layers of fabric, respectively. In conclusion, specimens exhibited high ductility due to the PVAC and basalt fiber. The amount of work and energy required to cause fractures was extensive.

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Structure-property relationships of basalt fibers for high performance applications

Cited by 37 publications

References 21 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

Strength Loss of Basalt-Based Mineral Fibers after Thermal Desizing

Basalt-Fiber-Reinforced Polyvinyl Acetate Resin: A Coating for Ductile Plywood Panels

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