Use of basalt scrim to enhance mechanical properties of particleboards

Kramár, Samuel; Mayer, Aaron Kilian; Schöpper, Christian; Mai, Carsten

doi:10.1016/j.conbuildmat.2019.117769

Cited by 13 publications

(6 citation statements)

References 37 publications

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“…This is in accordance to the general assumption that density is influencing the screw withdrawal resistance [ 10 , 62 ] beside other wood related parameters (fiber direction, species, moisture content, and temperature) [ 63 ]. Fiber reinforcement does influence the screw withdrawal resistance with regard to the position of the reinforcing fabric within the board structure [ 62 , 63 , 64 , 65 , 66 ]. The effects of the fabric singular characteristics should be further considered for further research [ 27 ].…”

Section: Resultsmentioning

confidence: 99%

Mechanical Properties of Cellulose and Flax Fiber Unidirectional Reinforced Plywood

et al. 2022

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This research presents the influence of two different cellulose (hydrophobic pretreated/non-pretreated) and one flax-fiber unidirectional nonwoven low areal weight fiber reinforcements on the mechanical properties of urea-formaldehyde bonded five layered beech (Fagus sylvatica L.) plywood as an alternative to commonly used synthetic fiber reinforcements. The results display divergent trends regarding the improvement of the mechanical properties—modulus of elasticity, modulus of rupture, tensile strength, shear strength, and screw withdrawal resistance. The non-treated cellulose and flax reinforcing nonwoven fabrics revealed similar mechanical behaviors. The hydrophobic pretreatment of cellulose nonwovens improved the performance of plywood regarding tensile strength (10–11%), shear strength (7–16%), screw withdrawal resistance (11–15%), and modulus of rupture (0–2%), but lowered modulus of elasticity (2–3%) compared to the reference.

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Section: Resultsmentioning

confidence: 99%

Mechanical Properties of Cellulose and Flax Fiber Unidirectional Reinforced Plywood

et al. 2022

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“…The position of the fiber reinforcement within the lay-up strongly influenced the improvements. Fiber reinforcement located closer to the outer layers or at the outside can better contribute to MOE performance due to higher tensile strength within the tension zone [8,14]. In contrast, MOR is strongly dependent on the strength of the surface layer [14].…”

Section: Modulus Of Elasticity and Modulus Of Rupturementioning

confidence: 99%

“…In addition, this is due to the difference in density between the core (low density) and the surface layer (high density). Fiber reinforcement placed within the surface layer increased the SWR due to increased density caused by a higher degree of compaction within the surface layer [14].…”

Section: Screw Withdrawal Resistancementioning

confidence: 99%

“…The effects of different fiber reinforcement positions within the structure on MOR, MOE, internal bond (IB) strength, screw withdrawal resistance (SWR), and thickness swelling (TS) were examined. The study revealed that basalt fiber scrim located at the outer positions significantly improved the strength-to-weight-ratio of particleboards [14]. Jorda et al (2020) investigated the influence of flax-fiber-reinforcement bonded with epoxy-resin on three-dimensional molded plywood.…”

Section: Introductionmentioning

confidence: 99%

“…Concluding from the studies, epoxy resin is the main source for bonding fiber reinforced wood-based composites with synthetic and natural fibers. Some attempts had been made to use PF, UF, and MUF [6][7][8][9]13,14]. For broader industrial production applications, the use of different adhesives is desirable due to the high production costs of epoxy resin systems.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Adhesive Systems on the Mechanical and Physical Properties of Flax Fiber Reinforced Beech Plywood

et al. 2021

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In order to improve the acceptance of broader industrial application of flax fiber reinforced beech (Fagus sylvatica L.) plywood, five different industrial applicated adhesive systems were tested. Epoxy resin, urea-formaldehyde, melamine-urea formaldehyde, isocyanate MDI prepolymer, and polyurethane displayed a divergent picture in improving the mechanical properties—modulus of elasticity, modulus of rupture, tensile strength, shear strength and screw withdrawal resistance—of flax fiber-reinforced plywood. Epoxy resin is well suited for flax fiber reinforcement, whereas urea-formaldehyde, melamine urea-formaldehyde, and isocyanate prepolymer improved modulus of elasticity, modulus of rupture, shear strength, and screw withdrawal resistance, but lowered tensile strength. Polyurethane lowered the mechanical properties of flax fiber reinforced plywood. Flax fiber reinforced epoxy resin bonded plywood exceeded glass fiber reinforced plywood in terms of shear strength, modulus of elasticity, and modulus of rupture.

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