Investigation of some physical and thermal insulation properties of honeycomb-designed panels produced from Calabrian pine bark and cones

Efe, Fatih Tuncay

doi:10.1007/s00107-021-01781-4

Cited by 7 publications

(5 citation statements)

References 61 publications

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“…Dünyada yaşanabilir bir çevrenin önemine yönelik gittikçe artan bir eğilim bulunmaktadır. Bu eğilime paralel olarak ağaç kabuğu (özellikle iğne yapraklılar), kozalak ve lignoselülozik atıklar gibi toksik olmayan, yenilenebilir, kolay, ucuz ve bol temin edilebilir, üretimi kolay doğal kaynaklara ilgi günden güne artmaktadır (Efe, 2022). Yukarıda sözü edilen doğal hammaddeler halen çoğunlukla endüstriyel olarak katma değeri yüksek ürünlere dönüştürülmemekte, arazide bırakıldıklarında katı atık olarak ve yakıldıklarında ortaya çıkan zehirli gazlarla çevre kirliliğine yol açmaktadırlar (Kain, 2016).…”

Section: Introductionunclassified

“…Son yıllarda kabuk esaslı yalıtım malzemeleri üzerine çalışmaların arttığı tespit edilmiştir. Bu kapsamda kızılçam (Efe, 2022), mantar (Ferreira vd., 2016;La Rosa vd., 2014), sarıçam ( Tudor vd., 2020a;Kain vd., 2012), yalancı akasya (Pásztory vd., 2017), ladin (Tudor, vd., 2020b), kavak (Busquets-Ferrer vd., 2021Tsalagkas vd., 2019), melez (Kain vd., 2018;Kain, vd., 2015;Kain vd., 2014), beyaz ladin, İsveç çamı ve huş (Holmberg vd., 2016) ve okaliptus (Wesolowski vd., 2014) üzerine araştırmalar yapılmıştır.…”

Section: Introductionunclassified

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Effects of Accelerated and Natural Aging on Some Properties of Composite Materials Produced From Pine Bark and Cones

EFE

2023

Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi

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Gerek odun gerekse diğer lignoselülozik malzemeler açık havada kullanıldıklarında güneş ışınları başta olmak üzere birçok etkilere maruz kalırlar. Bu malzemelerin daha uzun süre kullanılabilmeleri için bu etkilerin sonuçlarının bilinmesi gerekir. Bu çalışmada, perlit katkılı çam kabuğu ve kozalaklarından yapılan kalıplanmış kompozit malzemelerin hızlı (UV ışın altında) ve doğal yaşlandırma sonucu renk, parlaklık, kütle kaybı ile bazı fiziksel ve mekanik özelliklerinin malzeme içeriğindeki hammaddelerin parçacık büyüklüğü ve perlit oranıyla değişimi araştırılmıştır. Sonuçlara göre, yaşlandırma testi sonrasında toplam renk farkı değerleri için farklı renk değişimi ve yüksek renk değişimi kriterlerine rastlanılmamış; fakat yapay yaşlandırmanın L*, a* ve b* parametrelerini değiştirici etkide bulunduğu tespit edilmiştir. UV yaşlandırma sonrası A grubu malzemeler hariç tüm malzemelerin basınç dayanımının ve yoğunluğunun azaldığı; toprak testi sonuçlarına göre UV öncesi kütle kayıplarının büyük farklılıklar gösterdiği ve en fazla kaybın kozalak içeren örneklerde olduğu ölçülmüştür. UV muamelesinin kütle kaybı açısından tüm örneklerde birbirine yakın etki ettiği belirlenmiştir.

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Section: Introductionunclassified

Effects of Accelerated and Natural Aging on Some Properties of Composite Materials Produced From Pine Bark and Cones

EFE

2023

Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi

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“…These materials are also analysed within the scope of insulation materials [18][19][20][21]. They are a part of sandwich panels in low-energy houses [22][23][24][25]. They are typically used as an interior sheathing material [26] or furniture [27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Ignition of Wood-Based Boards by Radiant Heat

Marková

Ivaničová

Osvaldová

et al. 2022

Forests

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Particleboards (PB) and oriented strand boards (OSB) are commonly used materials in building structures or building interiors. The surface of boards may hence become directly exposed to fire or radiant heat. The aim of this paper is to evaluate the behaviour of uncoated particleboards and OSB exposed to radiant heat. The following ignition parameters were used to observe the process of particleboard and OSB ignition: heat flux intensity (from 43 to 50 kW.m-2) and ignition temperature. The time-to-ignition and mass loss of particleboards and OSB with thicknesses of 12, 15 and 18 mm were monitored and compared. The experiments were conducted on a modified device in accordance with ISO 5657: 1997. Results confirmed thermal degradation of samples. Heat flux had a significant effect on mass loss (burning rate) and time-to-ignition. OSB had higher ignition time than particleboards and the thermal degradation of OSB started later, i.e., at a higher temperature than that of particleboards, but OSB also had higher mass loss than particleboards. The samples yielded the same results above 47 kW.m−2. Thermal analysis also confirmed a higher thermal decomposition temperature of OSB (179 °C) compared to particleboards (146 °C). The difference in mass loss in both stages did not exceed 1%.

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“…There is a growing trend in the world towards the importance of a livable environment. Parallel to this trend, interest in non-toxic, renewable, easy, cheap and abundant natural resources, such as bark (especially coniferous species), cones and lignocellulosic wastes, which are easy to produce, is increasing day by day (Efe 2022). The above-mentioned natural raw materials are still not industrially converted into high value-added products; they cause environmental pollution and are generally burned (Kain 2016).…”

Section: Introductionmentioning

confidence: 99%

A study on some physical and mechanical properties of molded thermal insulation materials produced from perlite and boric acid added forestry by-products

Efe

2022

Wood Material Science & Engineering

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Thousands of tons of bark and cones are produced each year in the forest products industry and the natural life cycle of forests. These raw materials are either burned or left in the forest. In both cases, it causes both environmental problems and a signi cant loss of economic potential. On the other hand, the demand for thermal insulation materials is increasing day by day, and more synthetic and fossil-based raw materials with negative environmental effects are consumed. In this study, some physical and mechanical properties of molded thermal insulation materials produced from natural raw materials were investigated experimentally. In this context, 15 types of sandwich panel materials containing honeycombshaped core were produced from pine (Pinus brutia Ten.) bark and cones. The mean moisture content, density, compressive strength, tensile strength perpendicular to the surface (Internal adhesion strength), tensile strength parallel to the surface (Tensile strength), and dimensional stability (width-lengththickness change) values of the materials were 10.600%, 269.717 kg/m 3 , 0.493.06 N/mm 2 , 0.011 N/mm 2 , 0.150 N/mm 2 and − 0.156%, -0.054%, 0.942%, respectively. According to the results, it was determined that the increase in particle size and perlite ratio in the materials produced from the bark decreased the density. Moreover, it was found that the particle size-moisture content relationship and the perlite ratio-moisture content relationship varied in the materials containing bark and cones, that the mechanical properties were higher in the materials containing cones, and that the dimensional stability did not show a regular change.

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Investigation of some physical and thermal insulation properties of honeycomb-designed panels produced from Calabrian pine bark and cones

Cited by 7 publications

References 61 publications

Effects of Accelerated and Natural Aging on Some Properties of Composite Materials Produced From Pine Bark and Cones

Effects of Accelerated and Natural Aging on Some Properties of Composite Materials Produced From Pine Bark and Cones

Ignition of Wood-Based Boards by Radiant Heat

A study on some physical and mechanical properties of molded thermal insulation materials produced from perlite and boric acid added forestry by-products

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