Thermal and fire properties of medium-density fiberboard prepared with huntite/hydromagnesite and zinc borate

Ustaömer, Derya; Başer, Umut Emre

doi:10.15376/biores.15.3.5940-5950

Cited by 5 publications

(3 citation statements)

References 25 publications

(32 reference statements)

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“…Results determined that the chemical compounds improved the water absorption and thickness swelling values and increased the fire resistance of the boards; however, they reduced the internal bond strength 48% (Martinka et al 2021). Ustaomer and Başer (2020) investigated the combustion and thermal properties of MDF boards produced using mineral-based chemicals containing huntite/hydromagnesite and zinc borate (ZB) at different concentrations. According to the results, all mineral-based chemicals significantly affected the limiting oxygen index (LOI) and thermogravimetric analysis values.…”

Section: Introductionmentioning

confidence: 99%

Hybrid composite board produced from wood and mineral stone wool fibers

Akkus

2022

BioRes

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Wood fiberboards are used extensively, mainly in the fields of furniture production, interior fittings, construction, etc. Mineral stone wool materials are used for heat and sound insulation in the construction industry. This study aimed to produce a new hybrid-based composite material by mixing fibers obtained from wood and mineral stone wool. For this purpose, hybrid fiberboards with 50, 40, 30, and 20% stone wool addition and a fiberboard group consisting of 100% pine and beech fibers (control sample) were produced in a hot press using thermoset-based urea formaldehyde and phenol formaldehyde resins. Statistical comparisons of the results were made for values of density, thickness swelling, and water absorption extents after 24 h immersion, bending strength and modulus of elasticity in bending, tensile strength perpendicular to the board surface (internal bond strength), and time to ignition (TTI) analysis. Additionally, percentage of mass loss (PML), average heat release rate (A-HRR), average effective heat of combustion (A-EHC), and mass loss rate (MLR) were studied. The results showed that as the stone wool content in the produced boards increased, the mechanical properties and thickness swelling decreased. The combustion results showed that the combustion resistance of the boards increased with increasing stone wool ratio.

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Section: Introductionmentioning

confidence: 99%

Hybrid composite board produced from wood and mineral stone wool fibers

Akkus

2022

BioRes

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“…Based on these measurements, it was determined that they are within the range of their standard values [13], [43], [44], [45] [46], [47], [48] , [49], [50] & [51]. The validation results confirmed that the experimental method has been verified and can be applied to measure the thermal conductivity and the extracted thermal resistance.…”

Section: Validation Of the Measuring Methodsmentioning

confidence: 77%

The impact of temperature and humidity on the thermal resistance of waste materials for the efficiency of the building envelope

Soliman¹,

Elbialy²

2023

JSCBE

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A thermal insulation material’s effectiveness is influenced by its thermal conductivity and ability to maintain its thermal characteristics, particularly in hot and humid environments. In this study, different waste materials used in building envelopes are investigated for their thermal conductivity under temperature and humidity variations. Four materials are being studied experimentally; rubber, paper, plastic, and foam are mixed separately and proportionally with plain mortar. Thermal conductivity in testing samples is determined using heat-flow meters. Testing waste materials in a room environment for 14 days revealed varying degrees of thermal resistance. Compared to plain mortar, the inclusion of rubber, plastic, paper, and foam increase thermal resistance by 1.6, 43.4, 50.5, and 101.4%, respectively. In a climatic testing chamber, samples were exposed to extreme temperatures and humidity levels consistent with Bahrain’s monthly average temperatures. To determine the effect of changes in temperature and humidity on each waste material’s thermal properties, the thermal resistance of the samples was measured after 24, 48, and 72 hours. The change in environmental factors seems to have a mild impact on rubber’s thermal resistance. Most materials are foam and plastic, while paper and paperboard are moderately affected. Such a change is not substantial for the four tested waste materials during the July environment. Foam, which has demonstrated more significant changes throughout the January environment, shows fewer changes than rubber, paper, and plastic. In an extreme environment, all the tested waste materials, except for plastic, are highly influenced by exposure to extremities of temperature and relative humidity.

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“…In contrast to ATH (1300 Jg -1 ), HH has a lower enthalpy of decomposition (990 Jg -1 ) [15][16][17]. Thus, the flame retardancy action of HH is enhanced with synergic action studies employing red phosphorus [18], expandable graphite [19], zinc borate [20,21], antimony trioxide (Sb 2 O 3 ) [22][23][24], and boric acid [22].…”

Section: Introductionmentioning

confidence: 99%

Influence of boron bearing fillers on flame retardancy properties of huntite hydromagnesite filled ductile PLA biocomposites

Erdem

Doğan²

2023

Journal of Boron

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In this work, the flame retardant influences of colemanite and boron oxide are investigated in huntite-hydromagnesite (HH) containing plasticized poly (lactic acid) (PLA) biocomposites. The composites are characterized using limiting oxygen index (LOI), horizontal (UL 94 HB) and vertical (UL-94 V) burning tests, mass loss calorimeter and thermo gravimetric analysis (TGA). The addition of colemanite causes enhanced fire retardant performance with higher UL-94 V rating and LOI value and lower pHRR value. V0 rating and the highest LOI value is observed with the addition 1 wt % colemanite. When the concentration of colemanite reaches to 3 and 5 wt %, the samples get V1 rating. When the concentration of colemanite reaches to 5 wt %, pHRR and avHRR values are lower than those of the reference sample. The addition of boron oxide caused only improvement in LOI value. The highest LOI value (33.2) is observed in 5 and 10 wt % boron oxide containing samples.

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Thermal and fire properties of medium-density fiberboard prepared with huntite/hydromagnesite and zinc borate

Cited by 5 publications

References 25 publications

Hybrid composite board produced from wood and mineral stone wool fibers

Hybrid composite board produced from wood and mineral stone wool fibers

The impact of temperature and humidity on the thermal resistance of waste materials for the efficiency of the building envelope

Influence of boron bearing fillers on flame retardancy properties of huntite hydromagnesite filled ductile PLA biocomposites

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