Palmiye ağacı yaprak kınlarının kompozit levha üretiminde değerlendirilmesi

Year 2024, Volume: 7 Issue: 2, 281 - 292, 30.12.2024

Derya Ustaömer , Elif Topaloğlu , Murat Ozturk

https://doi.org/10.33725/mamad.1572441

Abstract

Bu çalışma kapsamında palmiye ağacı gövde kısmına yakın yaprak kınlarının kompozit levha üretiminde değerlendirilme imkânları araştırılmıştır. Çalışmada kullanılan palmiye ağacı, Giresun ilinden alınmıştır. Palmiye ağacı gövdesi kesimden sonra birkaç bölüme ayrılmış ve bir süre doğal kurutmaya bırakılmıştır. Kompozit levha üretimi için kullanılacak olan palmiye ağacı yaprak kınları bir bıçak yardımıyla gövdeden tek parça halinde kesilmiştir. Levha taslağı içerisinde tabaka olarak kullanılan farklı sayılardaki yaprak kınları ticari kayın liflerine karıştırılmış olup üre formaldehit (ÜF) tutkalı ve parafin kullanılarak beş farklı kompozit levha üretilmiştir. Üretilen kompozit levha örneklerinin su alma ve kalınlığına şişme oranları, eğilme direnci ve elastikiyet modülü değerleri ilgili standartlara göre belirlenmiştir. Kompozit levhayı oluşturan palmiye yaprak kını ve kayın liflerinin lif karakteristikleri Franklin maserasyon yöntemiyle belirlenmiştir. Çalışma sonucunda üretimde kullanılan yaprak kını sayısına göre üretilen kompozit levhaların su alma ve kalınlığına şişme yüzdelerinin kontrol örneğine kıyasla azaldığı, yaprak kınlarının levha taslağındaki kullanım yerine göre MOR ve MOE değerlerinin değişim gösterdiği belirlenmiştir.

Keywords

Palmiye yaprak kını, kompozit levha, fiziksel özellikler, mekanik özellikler

Ethical Statement

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Supporting Institution

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Thanks

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Evaluation of palm tree leaf sheats in composite board production

Abstract

This study investigates the potential use of leaf sheaths from palm trees, located near the trunk, in the production of composite boards. The palm tree used in this study was taken from Giresun province. After cutting, the trunk was divided into several sections and left to dry naturally for a period. The leaf sheaths intended for composite board production were cut from the trunk in one piece using a knife. Different quantities of leaf sheaths were mixed with commercial beech fibers as layers within the panel mat. Five different composite boards were produced using urea-formaldehyde (UF) adhesive and paraffin. The samples of the produced composite boards were tested according to relevant standards for water absorption and thickness swelling ratios, bending strength, and modulus of elasticity values. The fiber characteristics of the palm leaf sheaths and beech fibers that comprised the composite board were determined using the Franklin maceration method. The results showed that the water absorption and thickness swelling ratios of the composite boards decreased in comparison to the control sample, depending on the number of leaf sheaths used in production. Additionally, the MOR (Modulus of Rupture) and MOE (Modulus of Elasticity) values varied based on the placement of the leaf sheaths within the panel mat.

Keywords

Palm leaf sheat, composite material, physical properties, mechanical properties

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