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All Journal JURNAL SELULOSA Jurnal Ilmu dan Teknologi Kayu Tropis Jurnal Penelitian Hasil Hutan Jurnal Sylva Lestari Jurnal Penelitian Hasil Hutan
Karliati, Tati
Sekolah Ilmu Dan Teknologi Hayati, Institut Teknologi Bandung
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Materials Science & Nanotechnology

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Surian (wood as an Alternative Material for Bonded Wood Products in the Future (II): Laminated Veneer Lumber (LVL)) Alamsyah, Eka M; Karliati, Tati
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 9, No 2 (2011): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (261.13 KB)

Abstract

The objective of this study was to evaluate the performance of laminated veneer lumber (LVL) made from surian (Toona sinensis Roem) compared to sengon (Paraserianthes. falcataria L Nielsen) and rubber (karet) (Hevea brasiliensis Muell) wood which bonded with the common phenol formaldehyde (PF) and urea formaldehyde (UF) adhesives. LVL was assembled from 7 plies veneer with the final moisture content (MC) of veneer is about eight percent. The parameters of LVL i.e., MC, density, percentage of delamination, modulus of rupture (MOR), modulus of elasticity (MOE), horizontal shear strength (flat and edge direction) and formaldehyde emission were evaluated according to Japan Agricultural Standard (JAS). The result showed that delamination ratio value was zero percent. The most interesting finding was the value of formaldehyde emission of both PF and UF-surian LVL were lower than PF and UF rubber or sengon LVL due to their F4S classification of JAS. Values of MOR and horizontal shear strength both PF and UF-surian LVL was lower than rubber LVL, however it was higher than sengon LVL. The physical and mechanical properties of surian LVL met the JAS requirement.Key words: formaldehyde emission, laminated veneer lumber, physical and mechanical properties, Toona sinensis.
KARAKTERISTIK PAPAN PARTIKEL CAMPURAN SERBUK GERGAJIAN KAYU SENGON DAN KULIT BUAH KOPI DENGAN PEREKAT DEKSTRIN TEPUNG ONGGOK Nurannisa Syafitri; Auliya Shafiah Zakhrakh; Syifa Nur Annissa; Sutrisno Sutrisno; Eka Mulya Alamsyah; Tati Karliati; Jamaludin Malik
Jurnal Penelitian Hasil Hutan Vol 40, No 1 (2022): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2022.40.1.19-30

Abstract

Limbah hasil hutan dan pertanian saat ini belum memiliki nilai ekonomis yang baik maka pembuatan papan partikel bisa menjadi solusi. Tujuan dari penelitian ini adalah untuk mengetahui karakteristik fisis dan mekanis papan partikel dari campuran serbuk gergajian kayu sengon dan kulit buah kopi menggunakan perekat dekstrin dari pati tepung onggok. Pembuatan dekstrin dilakukan dengan cara menyemprotkan asam klorida (HCl) dengan konsentrasi 5% sebanyak 5 mL terhadap 80 g pati tepung onggok, kemudian dioven pada suhu 130°C selama 3 jam. Selanjutnya, dilakukan pembuatan papan partikel dengan target kerapatan 0,6 g/cm3. Untuk mengetahui komposisi campuran bahan yang optimal, papan partikel dibuat dengan empat komposisi bahan campuran antara serbuk gergajian kayu sengon dengan kulit buah kopi dengan perbandingan berat: 100%:0%, 75%:25%, 50%:50% dan 25%:75%. Perekat dekstrin yang digunakan dalam pembuatan papan partikel sebanyak 20% dari berat kering tanur partikel dan dilakukan pengempaan pada suhu 185°C serta tekanan 20 kg/cm2 selama 10 menit. Hasil pengujian sifat fisis menunjukkan bahwa nilai kerapatan 0,49-0,64 g/cm3, kadar air 7,89-9,01%, daya serap air 92,41-167,65% dan pengembangan tebal 11,91-59,90%. Papan partikel dengan komposisi campuran serbuk gergajian kayu sengon dan kulit buah kopi sebanyak 25%:75% telah memenuhi standar pengujian sifat fisis, meliputi: kerapatan, kadar air dan pengembangan tebal, sedangkan nilai daya serap air tidak dipersyaratkan di dalam Standar JIS A 5908: 2003. Hasil pengujian sifat mekanis menunjukkan bahwa nilai internal bond 0,02-0,03 N/mm2 dan nilai kuat tarik pegang sekrup 46,4-144 N. Papan partikel dengan komposisi campuran serbuk gergajian kayu sengon dan kulit buah kopi sebanyak 25%:75% memiliki sifat mekanis optimal, namun demikian tidak memenuhi standar JIS A 5908: 2003.
Characterization of Gutta Percha and Its Application as Plywood Adhesive Tati Karliati; Fauzi Febrianto; Wasrin Syafii; Imam Wahyudi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 10, No 1 (2012): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.535 KB) | DOI: 10.51850/jitkt.v10i1.121

Abstract

Gutta percha resin is a biodegradable and renewable elastomer trans-1,4- isoprene rubber and obtained from Palaquium tree through extraction of leaf or tapping of stem. The purposes of this research were to characterize the gutta percha and its application for wood (plywood) adhesive. Characteristics of gutta percha evaluated in this experiment were moisture content (MC), density, ash content, melting and decomposition temperatures. Plywood performance were evaluated under SNI 01-50019.10-2001 standard. Four different glue spread i.e.,175, 200, 225 and 250 g m-2 were introduced in this experiment. Five percent of maleic anhydride (MAH) and 1% of benzoyl peroxide (BPO) were used as a modifier and an initiator, respectively. The result showed that gutta percha has white to creamy color. The density, MC and ash content of gutta percha were 1.01 g cm-3, 6.09%, and 0.074% respectively. The melting and decomposition temperatures of gutta percha were noted 72.6°C and 482.2°C, respectively. Modification of gutta percha with 5% MAH enhanced the shear strength of resulted plywood. Modified gutta percha with 5% MAH in absence of BPO with glue spread of 250 g.cm-2 can be used for interior and exterior plywood adhesive. Their shear strength value fulfilled the requirement of SNI 01-5008.2-1999 standard.Key words : benzoil peroxide, glue spread gutta percha, maleic anhydride, plywood, wood adhesive
Ketahanan Batang Kelapa Sawit Diimpregnasi Resin Pinus dan Serbuk Kayu Surian Terhadap Rayap dan Cuaca Jessica Gita Adjani; Anne Hadiyane; Tati Karliati; Atmawi Darwis; Viona Febrinisa Mukhsin
JURNAL SELULOSA Vol 11, No 02 (2021): JURNAL SELULOSA
Publisher : Center for Pulp and Paper

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25269/jsel.v11i02.333

Abstract

The Resistance of Pine Resin and Surian Wood Sawdust Impregnated Oil Palm Stem Against Termite and WeatheringAbstractImpregnation substances into the oil palm trunks are one way to improve the oil palm trunk quality. This paper studies the optimum formulation of oil palm trunk impregnanted pine resin and Surian sawdust against dry-wood and subterranean termites as well as weathering performance. Impregnant concentration variations were mixtures of Tusam resin and Surian wood sawdust of 0% (RS0), 4% (RS1), 6% (RS2), and 8% (RS3) with three replications. Dry-wood termite test, subterranean termite test, and weather resistance test were carried out for 12 weeks of observation. The results showed that RS3 treatments were the optimum formulation of impregnated material used for oil palm trunk based on its resistance against dry-wood and subterranean termites resistance, while RS0 treatments were the optimum formula for weathering performances.Keywords: impregnation, oil palm trunk, pine resin, sawdust, Surian woodAbstrakSalah satu upaya untuk meningkatkan kualitas batang kelapa sawit adalah melalui impregnasi dengan resin pinus dan serbuk kayu Surian. Penelitian ini bertujuan untuk menentukan formulasi optimum impregnan batang kelapa sawit terhadap serangan rayap kayu kering dan rayap tanah serta ketahanan terhadap cuaca. Variasi konsentrasi impregnan yang digunakan yaitu campuran resin pinus dan serbuk kayu Surian 0% (RS0), 4% (RS1), 6% (RS2), dan 8% (RS3). Uji ketahanan rayap kayu kering, uji rayap tanah, dan uji ketahanan terhadap cuaca dilakukan selama 12 minggu pengamatan. Hasil penelitian menunjukkan bahwa konsentrasi optimum bahan impregnan batang kelapa sawit terimpregnasi terhadap ketahanan rayap kayu kering dan rayap tanah adalah formula RS3, sedangkan formulasi impregnan ketahanan cuaca optimum adalah batang kelapa sawit dengan formula RS0.Kata kunci: impregnasi, batang kelapa sawit, resin pinus, serbuk kayu, kayu Surian 
PEMANFAATAN ASAP CAIR LIMBAH GERGAJIAN KAYU PINUS SEBAGAI BIOPESTISIDA DALAM MENGHAMBAT SERANGAN HAMA PENGGEREK BUAH KOPI (Hypothenemus hampei Ferr.): Utilization of Liquid Smoke from Pine Wood in Inhibiting the Attacks of Coffe Fruit Press (Hypothenemus hampei Ferr.) Hadiyane, Anne; Navila, Aviva; Karliati, Tati; Pari, Gustan; Darmawan, Saptadi; Rumidatul, Alfi
Jurnal Penelitian Hasil Hutan Vol. 42 No. 1 (2024): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jphh.2024.1985

Abstract

Sawmill waste is a waste product that needs to be put to use. Applying biorefinery principles through pyrolysis technology, which produces liquid smoke, is one of the innovative efforts to utilize sawmill waste. Chemical compounds contained in the liquid smoke have the potential to act as biopesticides. Therefore, this study aimed to test the ability of liquid smoke from pine sawmill waste to fight PBKo (Hypothenemus hampei) pests on coffee plants. Pyrolysis produced the liquid smoke at 400–450 °C for 4–7 hours. The observed parameters were the physicochemical characteristics and efficacy of liquid smoke biopesticides at concentrations of 1.5%, 2%, and 2.5% against PBKo pests through pest attack tests, toxicity tests, and repellency tests. The results showed a total phenol value of 7248.01 mg GAE/100g. The results of the GC-MS analysis of the liquid smoke, which has the potential to be an insecticidal compound toxic to coffee fruit borer pests, are acetic acid, phenol, alcohol, furan, cycloalkane, cyclohexane, alkene, eugenol, and guaiacyl acetone. Based on the stydy’s results, liquid smoke from sawn pine wood waste at a concentration of 2.5% has the potential to be a natural biopesticide for inhibiting the growth of PBKo pests on coffee plants.    
Characteristics of Cold-Setting Adhesive Derived from Waste Styrofoam for Bonding Laminated Gmelina (Gmelina arborea) Wood Karliati, Tati; Dungani, Rudi; Hadiyane, Anne; Hidayat, Wahyu; Lubis, Muhammad Adly Rahandi
Jurnal Sylva Lestari Vol. 13 No. 2 (2025): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i2.1080

Abstract

Developing cold-setting adhesives derived from waste styrofoam (WS) of expanded polystyrene foam for laminated gmelina wood involves innovative recycling of WS into functional adhesives. As a type of thermoplastic polymer, WS can be used as an adhesive at room temperature. In this study, WS was functionalized into cold-setting adhesives through dissolution and cross-linking reaction with methylene diphenyl diisocyanate (MDI) at a concentration of 40% w/v at 60°C. The mixture was then stirred at 200 rpm for 30 minutes. The adhesive is characterized by its ability to be set at room temperature, offering environmental benefits and practical applications in wood lamination. Solids content, gelation time, viscosity, cohesion strength, functional group analysis, morphological features, and curing temperature analysis were performed to characterize the cold-setting adhesives. The WS-MDI-40% had 62.4% solids content, 906.8 mPa.s viscosity, 182.3 Pa cohesion strength, and 197.8 minutes of gelation time at room temperature. The adhesion performance was evaluated in laminated wood using gmelina wood at glue spread rates of 250 and 300 g/m2 and cold-pressed at various durations. The block shear strength value of laminated wood bonded with WS-MDI-40% at 300 g/m2 and cold-pressed for 24 hours was higher than that of other samples, reaching 8.2 MPa, which met the Japanese Agricultural Standard (JAS No. 234) for glued laminated timber, exceeding the minimum requirement of 5.4 MPa. Fourier transform infrared (FTIR) spectroscopy revealed that the cold-setting WS-MDI-40% were cross-linked via urethane linkages (R–NH–COO–R). The free –N=C=O groups could react with the –OH groups of gmelina wood to produce laminated wood during cold-pressing. This study suggested a recycling alternative of WS into a cold-setting wood adhesive for laminated wood, which can be utilized in interior applications. Keywords: adhesive, block shear strength, cohesion strength, cold-setting, gmelina wood
KARAKTERISTIK PAPAN PARTIKEL CAMPURAN SERBUK GERGAJIAN KAYU SENGON DAN KULIT BUAH KOPI DENGAN PEREKAT DEKSTRIN TEPUNG ONGGOK Nurannisa Syafitri; Auliya Shafiah Zakhrakh; Syifa Nur Annissa; Sutrisno; Eka Mulya Alamsyah; Tati Karliati; Jamaludin Malik
Jurnal Penelitian Hasil Hutan Vol. 40 No. 1 (2022): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2022.40.1.19-30

Abstract

Waste from forest and agricultural products currently does not have good economic value, so the manufacture of particle boardcould be a solution. The objective of this research is to obtain the physical and mechanical characteristics of particle board fromsengon wood sawdust and coffee bean bark using cassava flour waste-based dextrin adhesive. Dextrin was manufactured by spraying5 mL of 5% HCl to 80 g cassava flour waste starch, then heated at 130°C for 3 hours. Particle board manufactured with targetof density 0.6 g/cm3. To obtain the optimal composition of materials mixture, the particleboards were made with 4 compositions,based on the weight ratio between sengon wood sawdust and coffee fruit bark; 100%:0%, 75%:25%, 50%:50%, and 25%:75%.The dextrin adhesive used is 20% based on dry kiln weight of the particles and hot-pressing was conducted at a temperature of185°C and pressured 20 kgf/cm2for 10 minutes. The physical properties test showed that the density 0.490.64 g/cm3, moisturecontent 7.89%9.01%, water absorption 92.41167.65%, and thickness swelling 11.31%59.9%. Particle board withmixture composition of 25% sengon wood sawdust and 75% coffee fruit bark was fulfilled the physical properties: density, moisturecontent, and thickness swelling, while water absorption value did not specify in the JIS A 5908: 2003 standard. Mechanicalproperties test showed that the internal bond value was 0.020.03 N/mm2 and resistance to screw withdrawal value was46.4144 N. Particle board with a mixture of 25% sengon wood sawdust and 75% coffee fruit bark has the optimum mechanicalproperties, however it did not meet the JIS A 5908: 2003 standard.
Co-Authors Alamsyah, Eka M Anne Hadiyane Atmawi DARWIS Auliya Shafiah Zakhrakh Auliya Shafiah Zakhrakh Dungani, Rudi Eka Mulya Alamsyah Eka Mulya Alamsyah Fauzi Febrianto Gustan Pari Hadiyane, Anne Imam Wahyudi Indrawan, Imam Wahyudi Jamaludin MALIK Jamaludin Malik Jessica Gita Adjani Lubis, Muhammad Adly Rahandi Navila, Aviva Nurannisa Syafitri Nurannisa Syafitri Rumidatul, Alfi Saptadi DARMAWAN SUTRISNO Sutrisno Sutrisno Syifa Nur Annissa Syifa Nur Annissa Viona Febrinisa Mukhsin Wahyu Hidayat Wasrin Syafii