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The Kraft Pulp And Paper Properties of Sweet Sorghum Bagasse (Sorghum bicolor L Moench) Supriyanto, Supriyanto; Iswanto, Apri Heri; Fatriasari, Widya
Journal of Engineering and Technological Sciences Vol 47, No 2 (2015)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (286.53 KB) | DOI: 10.5614/j.eng.technol.sci.2015.47.2.4

Abstract

This study investigated the potency of sweet sorghum (Sorghum bicolor) bagasse as raw material for pulp and paper using kraft pulping. The effects of alkali and sulfidity loading on kraft pulp and paper properties were also investigated. The pulping condition of the kraft pulp consisted of three levels of alkali loading (17, 19 and 22%) and sulfidity loading (20, 22 and 24%). The maximum cooking temperature was 170°C for 4 h with a liquid to wood ratio of 10:1. Kraft pulping of this Numbu bagasse produced good pulp indicated by high screen yield and delignification selectivity with a low Kappa number (< 10). The unbleached pulp sheet produced a superior brightness level and a high burst index. The increase of active alkali loading tended to produce a negative effect on the pulp yield, Kappa number and paper sheet properties. Therefore, it is suggested to use a lower active alkaline concentration.
Optimizing the Synthesis of Lignin Derivatives from Acacia mangium to Improve the Enzymatic Hydrolysis of Kraft Pulp Sorghum Bagasse Fatriasari, Widya; Hamzah, Fajar Nur; Pratomo, Bagas Ikhasan; Fajriutami, Triyani; Ermawar, Riksfardini Annisa; Falah, Faizatul; Laksana, Raden Permana Budi; Ghozali, Muhammad; Iswanto, Apri Heri; Hermiati, Euis; Winarni, Ina
International Journal of Renewable Energy Development Vol 9, No 2 (2020): July 2020
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.9.2.227-235

Abstract

The present study is aimed at optimizing the synthesis of Amphipilic lignin derivatives (A-LD) from the isolated lignin of A.mangium black liquor (BL), using the one and two step acid isolation method, and commercial lignin (LS) was used as comparison. The experimental design was conducted using Taguchi method, which consisted of four parameters and two level factors, with reference to the matrix orthogonal array, L8, including temperature, reaction time, amount of polyethylene glycol diglycidylethers (PEGDE) and Kraft lignin (KL). Furthermore, the kraft pulp of sweet sorghum bagasse (SSB) was used as substrate in the enzymatic hydrolysis (NREL method), with addition of A-LD, whose functional group and surface tension were then characterised using ATR-FTIR and surface tension equipment. Conversely, an improvement in the reducing sugar yield (RSY) compared to the control was observed after adding various A-LDs to the substrate during enzymatic hydrolysis. This product was more prospective for L2S than others products under milder circumstances, due to the fact that it possesses the lowest surface tension. Also, Taguchi analysis demonstrated the treatment at 60 °C for 1 h with 3.0 g and 1.0 g of PEDGE and lignin, respectively as the optimum condition, while the amount of lignin present was included as a factor with the propensity to significantly affect A-LD L1S and LS. Therefore, it was established that the A-LDs from A. mangium kraft lignin require milder synthesis conditions, compared to other existing methods and despite the differences in optimum experimental condition for L2S and LS, the functional groups in the IR spectra possessed very identical characteristics. 
Effect of Particle Length to the Quality Particleboard Made from Sorghum Bagasse Apri Heri Iswanto; Dita Sari Prabuningrum; Irawati Azhar; Supriyanto Supriyanto
Journal of Sylva Indonesiana Vol. 1 No. 01 (2018): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.09 KB) | DOI: 10.32734/jsi.v1i1.423

Abstract

The objective of this research was to evaluate the effect of length size particle on physical and mechanical properties of particleboard. Sorghum bagasse was cut into 3, 5, and 7 cm length size. Furthermore, particles were dried until reached of4% moisture content. Amount of 10% urea-formaldehyde (UF) resin used for binding. Hot pressing process conducted in 130C temperature for 10 minutes and 30 kg cm -2 pressure. The results showed that thickness swelling (TS) and internal bond (IB) did not fulfill of requirement of Japanese Industrial Standard (JIS) A 5908 (2003). According to all parameters, 3 cm length size of particle was resulting in the best properties.
KETAHANAN PAPAN PARTIKEL TIGA LAPIS TERHADAP SERANGAN RAYAP TANAH Janrahman Simarmata; Apri Heri Iswanto; Irawati Azhar
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.883 KB)

Abstract

The objective of this research was to evaluate the effect of wood species and adhesive type on durability three layers particleboard to subterranean termite attack. The research method using grave yard test on the field. Samples were oven dried before test, furthermore samples were burried for 3 month. After that, samples were washed, cleaned and oven dried.  Furthermore, the measuring of  weight sample to determine of weight loos parameter.The results showed that sengon and mahoni wood combination able to reduce of termite attack level compared with homogenous wood particleboard.  Sengon as surface layer and mahoni as core layer resulted the best durability of board.  The durability of UF adhesive for manufacturing particleboard better than combination UF and MF particleboard. Keywords:  Durability, Subterranean termite, particleboard, UF and MF
PENGUJIAN KEAWETAN ALAMI PAPAN PARTIKEL DARI CAMPURAN LIMBAH BATANG SORGHUM DAN SERUTAN KAYU Andrianta Ginting; Irawati Azhar; Apri Heri Iswanto
Peronema Forestry Science Journal Vol 4, No 1 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (413.171 KB)

Abstract

Sorghum stalk bagasse is potential raw materials to particleboard manufacture. In the previous research, sorghum bagasse particleboard had weakness matter in modulus of elasticity, internal bond and thickness swelling properties. Wood shaving mixture will be expected to improve of those properties. The objective of this research was to evaluate the effect of wood  shaving added to improve mechanical properties of particleboard.  Wood shaving type was added in particleboard manufacturing consist of Meranti, Cempedak, Mahoni, and Durian.  Sorghum bagasse and wood shaving ratio in this research was 50/50 (%w/w). Amount of 10% urea formaldehyde (UF) resin used for binding. Hot pressing process was conducted in 1300C temperature for 10 minute and 30 kg cm-2 pressure.  The result showed that, the thickness swelling (TS) does not fulfill of requirement JIS A 5908 (2003). Cempedak and Mahoni wood shaving mixture resulted of lower the TS value than control and other wood shaving mixture. In generally, wood shaving and sorghum bagasse mixture result in increasing of internal bond properties. Cempedak wood shaving resulted the best of bending properties than control and other mixture. Keyword : sorghum stalk, wood shaving, particleboard
Variation of Particle Pretreatment on Termites Attack of Particleboard Made from Waste Oil Palm Trunks using Urea Formaldehida Resin Kaya Muda Lubis; Rudi Hartono; Tito Sucipto; Apri Heri Iswanto
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.02 KB)

Abstract

The waste of oil palm trunk could be used as alternative raw material for particleboard. The purpose of these studies were to evaluate durability of particleboard on termites attack. Particle pretreatment were done by hot water soaking (1 hour, 2 hours, 3 hours) and cold water soaking (24 hours, 48 hours, 72 hours). Particle board were made from waste of oil pulm trunk using urea formaldehida of 10% with size 30 cm x 30 cm x 1 cm, density target 0.75 g/cm3, pressure 25 kg/cm2 at 130ºC of temperature for 10 minutes. Particleboard was tested for durability of particleboard on termites attack by grave yard test along 100 days and wil be compared by SNI 01-7207-2006.The percentages of particleboard weight loss were 41.05-60.29%. Based on the termites attack rate, all of particleboards were classified as very bad durability. The best of particleboards durability was the board with cold water soaking for 72 hours treatment with 41.05% of particleboard weight loss.Keywords : oil palm trunk, urea formaldehida, particle pretreatment, particle board, subterranean termites.
The variation of Temperature and Pressing Time on Particle Board Quality from Waste Oil Palm Trunk Using Phenol Formaldehyde Adhesive Syahroni Hasan Siregar; Rudi Hartono; Tito Sucipto; Apri Heri Iswanto
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (550.565 KB)

Abstract

The waste of oil palm trunks could be used as raw material for particle boards. The purpose of these studies were to known the physical, mechanical properties and to know durability of particleboard on termites attack. The variation of treatment were temperature (160, 170 and 180 °C) and pressing time (5, 7, 8 and 11 minutes). Particleboards were made from waste of oil palm trunk using phenol formaldehyde of 8 % with size 30 cm x 30 cm x 1 cm and density target of 0.70 gr/cm3. Particleboard were tested physical and mechanical properties and will be compared by SNI 03-2105-2006. Also, it will be tested by grave yard test along 100 days for durability from termites attack.Result showed that density, moisture content, water absorption, thickness swelling, MOE, MOR and Internal bond were 0.65 -0.77 g/cm³, 4.89-7.76 %, 57.36-71.53 %, 7.03-13.28 %, 10.595 -19.258 kg/cm², 57.67 -135.55 kg/cm², 1.67-3.81 kg/cm², respectively. All of density, moisture content and internal bond fulfilled standard. The other hand all of MOE didn’t fulfilled the standard. While thickness swelling and MOR only several which fulfilled the standard. Weight loss particleboard from subterranean termites were 32.33-87.45 %. Particleboard durability was classified as very bad. The best treatment of particleboard was attained by pressing temperature of 160°C for 7 minutes.Key words: oil palm trunk, particleboard, temperature and pressing time, phenol formaldehida
PENGARUH PERLAKUAN AWAL PARTIKEL TERHADAP SERANGAN RAYAP TANAH PADA PAPAN PARTIKEL DARI LIMBAH BATANG KELAPA SAWIT (The Effect of Particle Pre-treatment of Subterranean Termite Attack on Particleboard from Oil Palm Trunks Waste) Cut Yulia Maghfirah; Tito Sucipto; Rudi Hartono; Apri Heri Iswanto
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.242 KB)

Abstract

The utilization of oil palm trunk could be used as raw material for particleboard. It was not only increased the added value, but also used as substitution of wood. The purpose of this research evaluated the resistance of particleboard from waste of oil palm trunk on subterranean termites attack. The variation of particle pretreatment were dont by soaking the particle in hot water (1,2 and 3 hours) and in cold water (24, 48 and 72 hours.) Particleboard were made from oil palm trunk using isocyanate of 7%, with size 30 x 30 x 1 cm and density target of 0,70 gr/cm3. The evaluation of the samples were done by grave yard test along 100 days for resistance of particleboard on subterranean termites. The result showed that percentages of particleboard weight loss to subterranean termites were 19,99-63,92%. Based on subterranean termites attack, the particleboard made from oil palm trunk was classified as moderate to very destroy.Keywords: oil palm trunk, isocyanat, particle board, subterranean termites
Variation of Particle Pretreatment of Subterranean Termite Attack on Particle Board From Oil Palm Trunk Waste with Phenol Formaldehyde Adhesive Guido Simbolon; Rudi Hartono; Tito Sucipto; Apri Heri Iswanto
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.268 KB)

Abstract

These research were to known the particle pretreatment on the durability properties of particleboard on termites attack. The variation of particle pretreatment in this research were done by soaking the particle in hot water (1,2 and 3 hours) and cold water (24, 48 and 72 hours). The particle board was made from oil palm trunk using of phenol formaldehyde adhesive with size 30 cm x 30 cm x 1 cm and density target of 0.7 g/cm3. Particle board will be test by grave yard test along 100 days for durability from termites attack and will be compared by Indonesia National Standard (SNI) 01-7202-2006. The result showed that the weight loss of particle board values were 38.63-88.11%. Based on termites attack level, it was classified as very low durability.Keywords : oil palm trunk, phenol formaldehyde adhesive, particle board, subterranean termite.
Pelatihan Pembuatan Produk Kerajinan Berbahan Cabang Kayu Mangrove Ridwanti Batubara; Mohammad Basyuni; Apri Heri Iswanto; Bejo Slamet; Arida Susilowati; Deni Elfiati; Mariah Ulfa; Ryzki Pebriansyah
ABDI MOESTOPO: Jurnal Pengabdian Pada Masyarakat Vol 4, No 01 (2021): Januari 2021
Publisher : Universitas Prof. Dr. Moestopo (Beragama)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.512 KB) | DOI: 10.32509/am.v4i1.1319

Abstract

Cabang kayu mangrove merupakan limbah kayu yang bisa dimanfaatkan untuk berbagai produk kerajinan kayu.  Tujuan dari kegiatan pelatihan yang dilakukan adalah melatih masyarakat membuat kerajinan berbahan cabang kayu mangrove dan memberikan pengetahuan tentang sifat-sifat dasar cabang kayu dalam pengolahannya.  Metode pelatihan meliputi pemberian materi pelatihan, praktek langsung pembuatan kerajinan dan diskusi.  Hasil pelatihan dari praktek tiap-tiap kelompok membuat kerajinan dari cabang kayu mangrove yang berbeda-beda, antara lainn aneka gantungan kunci, cup lampu dan tongkat kayu. Setelah pelatihan peserta bertambah pengetahuan tentang sifat-sifat dasar cabang kayu dan produk-produk kerajinan yang dibuat dari cabang kayu.