Evaluation of surface roughness and wettability of heat-treated, fast-growing tropical wood species sengon (Paraserianthes falcataria(L.) I.C.Nielsen), jabon (Anthocephalus cadamba(Roxb.) Miq), and acacia (Acacia mangiumWilld.)

Karlinasari, Lina; Lestari, Andi Tri; Priadi, Trisna

doi:10.1080/20426445.2018.1516918

Cited by 17 publications

(24 citation statements)

References 29 publications

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“…The current study found that the higher the surface roughness or the coarser the particleboard, the lower the CA. In a previous study, wood species with a porous structure was found to have a higher surface roughness [47,48]. In terms of the coarser particleboard, the lower CA indicated perfect wetting, which means better hydrophilicity.…”

Section: Biological Deterioration Of the Samplesmentioning

confidence: 84%

Some of the Physical and Mechanical Properties of Particleboard Made from Betung Bamboo (Dendrocalamus asper)

et al. 2021

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The objective of this study was to evaluate various physical and mechanical properties of experimental particleboard panels made from Asian giant bamboo (Dendrocalamus asper). Single layer panels having a density level of 0.75 g/cm3 from coarse and fine particles were used within the scope of this study. Thickness swelling, water absorption, surface roughness, and wettability characteristics of the samples were tested as physical properties while bending, internal bond strength, and screw withdrawal strength of the panels were considered for their mechanical properties. Resistance of the panels against termite and fungus were also determined. Based on the findings in the work both physical and mechanical properties of the panels made from coarse particles resulted in higher values than those made from fine particles with the exception of their internal bond strength. It appears that using fine particles in the panels enhanced their overall surface quality as well as wettability. Regarding biological deterioration of the samples, those made with coarse particles had better resistance. It seems that giant bamboo as a non-wood lignocellulosic species would have potential to be used as raw material to the manufacture value added particleboard with accepted characteristics.

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Section: Biological Deterioration Of the Samplesmentioning

confidence: 84%

Some of the Physical and Mechanical Properties of Particleboard Made from Betung Bamboo (Dendrocalamus asper)

et al. 2021

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“…Penelitian mengenai perlakuan panas telah dilakukan oleh Karlinasari et al, 2018) untuk jenis kayu sengon, jabon, dan mangium pada suhu 120°C, 150°C, dan 180°C terkait kekasaran permukaan serta sudut kontak pada permukaan kayu yang telah dimodifikasi panas. Berdasarkan hasil penelitian tersebut disebutkan bahwa perlakuan panas dapat meningkatkan kualitas permukaan kayu dan meningkatkan sudut kontak permukaan kayu.…”

Section: Nounclassified

“…Perubahan-perubahan sifat kayu setelah perlakuan panas terjadi akibat degradasi terhadap komponen kimia kayu seperti hemiselulosa, lignin, dan adanya perubahan sifat hidrofobik kayu (Winandy & Shupe, 2010). Adanya perubahan tersebut juga memberikan pengaruh terhadap sifat pengeringan, kekasaran permukaan, dan sifat pemesinan pada kayu (Fernando et al, 2011;Ratnasingam & Ioras 2012;Karlinasari et al, 2018…”

Section: Nounclassified

“…Rata-rata penurunan nilai kadar air untuk setiap jenis kayu mencapai 57% setelah perlakuan panas suhu 165°C (Gambar 5). Penelitian Karlinasari et al, (2018) menyatakan bahwa penurunan kadar air setelah perlakuan panas terjadi akibat adanya penurunan kemampuan dinding sel dalam menyerap air karena adanya penurunan jumlah gugus hidroksil dalam kayu.…”

Section: Kadar Airunclassified

“…Selain dari berat jenis kayu, faktor lain yang mempengaruhi sifat pemesinan adalah anatomi kayu seperti arah serat dan diameter pori (Karlinasari et al, 2018), Ogata et al, (2008) menyebutkan bahwa ukuran diameter pembuluh kayu sengon tergolong besar yaitu 160−340 mikron. Dalam hal ini, Supriadi (2018) menyatakan bahwa semakin besar ukuran diameter pembuluh maka semakin rendah kualitas pemesinan.…”

Section: Pengaruh Jenis Kayu Dan Waktu D Pemanasan Terhadap Sifat Pemunclassified

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Evaluasi Cacat Pengeringan Dan Pemesinan Pada Empat Jenis Kayu Cepat Tumbuh Termodifikasi Panas

Adzkia¹,

Priadi²,

Karlinasari³

2019

j.penelit.has.kehutan

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Heat treatment is one method that can improve the quality of wood including for fast-growing wood species. However, this treatment can cause some drying defects as well as the change of machining properties after applying that heat treatment. The purpose of this study was to evaluate the effect of wood species and heating time on the drying and machining defects. The fast-growing wood species used were teak, mangium, jabon, and sengon. The heat treatment was carried out at a temperature of 165°C with variation in time were 0 (control), 2, and 6 hours. The result showed that the moisture content and wood density decreased after heat treatment. Heat treatment was succeeded to decrease the moisture content of 57% and caused a decreasing of density until 20% compared with control wood. The drying defects of end checks in teak, mangium, jabon and sengon increased after 2 and 6-hour heat treatment. In the other hand, the surface checks defect of teak, mangium, sengon and jabon were decreased. The defects after applying machining activities i.e. the defects of sanding, planing, shaping, and boring were decreased in teak, mangium, jabon and sengon after heat treatment of 2 and 6-hour. Jati was the best wood species in term of machining quality followed by jabon, mangium, and sengon after heat treatment. At the temperature of 165°C in 2 hours could be considered as the appropriate time for heat treatment in term of obtaining minimal defects of drying and machining. ABSTRAKPerlakuan panas merupakan salah satu metode yang dapat meningkatkan kualitas kayu termasuk untuk kayu cepat tumbuh. Namun perlakuan tersebut dapat menyebabkan cacat pengeringan serta perubahan sifat pemesinan setelah perlakuan panas. Tujuan penelitian ini untuk mengevaluasi pengaruh variasi jenis kayu dan waktu pemanasan terhadap adanya cacat pengeringan dan pemesinan kayu cepat tumbuh. Jenis kayu cepat tumbuh yang digunakan adalah jati, mangium, jabon dan sengon. Perlakuan panas dilakukan pada suhu 165ºC dengan variasi waktu 0 jam (kontrol), 2 jam dan 6 jam. Hasil penelitian menunjukkan bahwa kadar air dan kerapatan kayu menurun setelah perlakuan panas. Perlakuan panas berhasil menurunkan kadar air 57% dan menyebabkan penurunan kerapatan kayu hingga 20% dibandingkan dengan kayu kontrolnya. Cacat pengeringan retak ujung pada jati, mangium, jabon dan sengon meningkat setelah perlakuan panas selama 2 dan 6 jam. Di sisi lain, cacat retak permukaan pada jati, mangium, sengon dan jabon berkurang. Cacat setelah menerapkan kegiatan pemesinan yaitu cacat pengamplasan, penyerutan, pembentukan, dan pengeboran menurun pada jati, mangium, jabon dan sengon setelah perlakuan panas 2 dan 6 jam. Jati adalah spesies kayu terbaik dalam hal kualitas pemesinan setelah perlakuan panas diikuti oleh jabon, mangium, dan sengon. Pada suhu 165°C dalam 2 jam dianggap sebagai waktu yang tepat untuk perlakuan panas dalam hal memperoleh cacat minimal pengeringan dan pemesinan. Kata kunci : Jati, jabon, perlakuan panas, sengon.

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Colour changes on low-density wood laminas from heat-and densification treatment

Shamsuddin,

Liew

2024

AIP Conference Proceedings

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Evaluation of surface roughness and wettability of heat-treated, fast-growing tropical wood species sengon (Paraserianthes falcataria(L.) I.C.Nielsen), jabon (Anthocephalus cadamba(Roxb.) Miq), and acacia (Acacia mangiumWilld.)

Cited by 17 publications

References 29 publications

Some of the Physical and Mechanical Properties of Particleboard Made from Betung Bamboo (Dendrocalamus asper)

Some of the Physical and Mechanical Properties of Particleboard Made from Betung Bamboo (Dendrocalamus asper)

Evaluasi Cacat Pengeringan Dan Pemesinan Pada Empat Jenis Kayu Cepat Tumbuh Termodifikasi Panas

Colour changes on low-density wood laminas from heat-and densification treatment

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