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All Journal Peronema Forestry Science Journal Jurnal Ilmiah Mahasiswa FEB Telematika : Jurnal Informatika dan Teknologi Informasi ARABIYAT GEA, Jurnal Pendidikan Geografi Jurnal Agrotek UMMat Jurnal Inotera Prosiding Seminar Nasional Sains dan Teknologi Terapan Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) El-Tsaqafah: Jurnal Jurusan PBA Minda Baharu PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat JEECAE (Journal of Electrical, Electronics, Control, and Automotive Engineering) Academy of Education Journal Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Majamecha Jurnal ABDINUS : Jurnal Pengabdian Nusantara Jurnal Disastri: Pendidikan Bahasa dan Sastra Indonesia Mechanical Engineering for Society and Industry Makara Journal of Technology Cahaya bagaskara Menara Tebuireng : Jurnal Ilmu-Ilmu Keislaman Jurnal Media Akademik (JMA) Global Forest Journal Jurnal Ilmu-ilmu Syari'ah
Luthfi Hakim
Departemen Kehutanan, Fakultas Pertanian, Universitas Sumatera Utara, Medan 20155, Indonesia
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Journal : peronema forestry science journal

 1 
Pengembangan Perekat Likuida dari Limbah Kulit Buah Kakao (Theobroma cacao L.) Marcelila Medynda; Tito Sucipto; Luthfi Hakim
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Increased need for adhesive in the wood processing industry require alternative to meet the needs. Cocoa is one of natural resource that contains lignocelluloses and potential to be alternative adhesive through liquefaction process. This research aim to determine adhesive quality such as visible, degree of acidity (pH), viscosity, density, solid content, gelatin time, ash content , free formaldehyde, and crystalline degree, compare the adhesive quality of cocoa fruit outer skin (CFOS/ KBKL) and inner skin (CFIS/ KBKD), and compare them with SNI 06-4567-1998. Mixed cocoa fruit skin, H2SO4, technical crystal phenol, NaOH and formalin with 90ºC temperature for 2 hours. Result of research showed that cocoa fruit skin adhesive is phenolic group with CFOS was liquid adhesive characteristic, brown colored, waste free, degree of acidity was 10, viscosity was 0,8355 cps, density was 1,156, degree of solid content was 42,33%, gelatin time was 89 minutes 37 seconds, ash content was 9,2%, free formaldehyde was 0,8% and crystalline degree was 35,19% and CFIS characteristic was liquid, reddish brown colored, waste free, degree of acidity was 10, viscosity was 31,202 cps, density was 1,262, degree of solid content was 44,66%, gelatin time was 73 minutes 45 seconds, ash content was 13,8%, free formaldehyde was 0,48% and crystalline degree was 37,28%. CFIS better than CFOS because it has fit with the standards well and also almost standard approach although not according to standard. Cocoa fruit skin liquid adhesive quality were gotten fulfilled SNI 06-4567-1998 enough such as appearance, degree of acidity, degree of solid content and gelatin time. Free formaldehyde characteristic also fulfill of SNI 06-4565-1998 was ≤2% Key word: waste, cocoa fruit outer and inner skin, liquiefaction, wood liquid adhesive
ASETILASI KAYU KEMIRI (Aleurites moluccana), DURIAN (Durio zibethinus), DAN MANGGIS (Garcinia mangostana) Febrina Heryani Tarigan; Luthfi Hakim; Rudi Hartono
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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The problem solve of unstable dimensions wood fruits and susceptible wood from termites attack was an attempt preservation of wood by acetylation. The research purposes were to knew the effect of wood variety and acetic acid concentration to retention value, to evaluated the Weight Percent Gain (WPG) and dimention stability, and to evaluated durability from attack termite based on laboratory dan grave yard test. Some kind of wood such as kemiri, durian, and manggis woods were treated by soaking during 2 weeks with acetic acid concentration of 10%, 15%, 20%, and 25%. The results showed that high retention on kemiri wood with concentration of 25% was 7.73 gr/cm3. Durian wood in concentration of 15% had WPG value (44.41%) was good dimention stability (67.8%). The increasing of acetic acid concentration caused the increasing of retention and wood resistance from termite attack in laboratory and grave yard test. Key words: acetic acid, wood acetylation, termites, WPG, ASE
Asetilasi Kayu Rambutan (Nephelium lappaceum L), Cempedak (Artocarpus integer Merr), dan Rambai (Baccaurea montleyana Muell. Arg) Jendro Zalukhu; Luthfi Hakim; Rudi Hartono
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The utilization of fruit woods increased according of increasing human needs. Several weakness of fruit woods were bad dimensional stability and susceptible wood from termite attack. Preservation can improve the dimensional stability and increase the wood from termite attack. One preservation method of was acetylation. The research purpose were to known the effect of rambutan, cempedak and rambai woods variety and acetic acid concentration to retention value, to evaluated the dimention stability and Weight Percent Gain and to evaluated durability from attack termite based on graveyard test and laboratory test. Some kind of wood such as rambutan, cempedak and rambai woods were treated by soaking during 2 weeks with acetic acid concentration of 10%, 15%, 20% and 25%. The results showed the effective retention on rambai wood with concentration of 20% was 3.81%. The high dimention stability ASE on rambutan wood with concentration of 15% was 73.37%, and the high WPG on rambai wood with concentration of 25% was 46.66%. The increasing of acetid acid concentration caused the increasing retention and wood resistance from termite attack in graveyard test and laboratory test. Key words: Wood, acetylation, ASE, WPG, termite
Sifat Fisis dan Keawetan Alami Kayu Pengkih Terhadap Serangan Rayap Tanah (Macrotermes Gilvus) Jon Herianta Ginting; yunus afifuddin; Luthfi Hakim
Peronema Forestry Science Journal Vol 1, No 1 (2012): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Availability of wood species from natural forest that commonly used for building contructions, meuble, craft and industrial materials nowadays is increasingly limited and not balanced with increasing the needs of wood. To fulfill the needs should be used the species of wood that easily obtained, such as the species that are less well known from natural forest or cultivated by people. The purpose of this research is to evaluate the physical propersties and natural durability of pengkih wood towards termite attack. These physical properties testing is based on the ASTM D 143-94 standard with three replications in each sample. These natural durability of wood testing based on the SNI 01-7207-2006 standard with four replications in each sample. Based on the results of this research pengkih wood is including class II of wood strength, that have value of density substance is 1.5 and including class I of grade durability with percentage of weight lose about 0.3-0.6%. The smallest value of attack intensity is in the  wooden base and the largest is in the end of the wood. .   Key words : Pengkih Wood, physical  properties, natural  durability, termites
Kualitas Papan Semen dari Partikel Serutan Pensil dengan Berbagai Rasio Semen dan Partikel Desi Natarina Sembiring; Luthfi Hakim; Tito Sucipto
Peronema Forestry Science Journal Vol 4, No 2 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Cement-Bonded Particleboard made of pencil shaving industry waste has not developed in Indonesian. The main objective of this research was to evaluate the physical and mechanical properties of cement bonded from pencil shavings particles and determine the optimum cement-to-particle ratio. The treatment of cement/particle ratio were 90:10; 85:15; 80:20 and 75:25. Methods of this research were two steps curing. The first step was air curing using cold press for ±4 days and continued of second step was oven curing at 80̊ C for 24 hours. The result of the research showed that cement-bonded particleboard produced density value around 0,73-1,13 g/cm3, moisture content 8,37-12,16%, water absorption on immersion 2 hours and 24 hours around 23,78-43,48% and 27,33-51,90%, thickness swelling on immersion 2 hours and 24 hours around 0,79-1,82%  and 1,39-2,89%, modulus of elasticity around 114,21-880,17  kg/cm2, modulus of rupture around 7,32-18,52 kg/cm2 and internal bond around 0,88- 1,56 kg/cm2. The effect of cement/particle ratio on the research showed that 80:20 is very good compared from 90:10; 85:15 and 75:25.Key words: cement-bonded particleboard, pencil shavings particles, cement-to-particle ratio.
Kualitas Laminasi Bambu Betung (Dendrocalamus asper) pada Berbagai Perlakuan Ukuran Sortimen dan Buku Bambu Putri Rafika Wulandari; Luthfi Hakim; Tito Sucipto
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Laminated boards made from bamboo betung (Dendrocalamus asper) with the influence of different sizes and the presence of node sortimen. The purpose of this study was to evaluate the physical and mechanical properties of laminated bamboo betung, evaluating the effect of nodes and size sortimen the physical and mechanical properties of laminated bamboo board betung and determine the best size and the existence of the book sortimen bamboo as laminate raw material. Testing the water content, water absorption, delamination and bending strength is based JAS standard SE-7 2003 on Flooring surfaces while bonding strength testing is done based on ISO standard ISO 16981-2012.  The results show the quality of bamboo betung laminate board meets the standards JAS-7-2003 SE for testing moisture content, delamination, but for testing water absorption does not fulfilling. On the mechanical properties of bamboo betung laminated board meets the standards JAS-7-2003 SE for testing bending strength and meets ISO 16981-2012 standards for surface bonding strength testing. The best treatment for laminated boards are laminated boards without involving nodes with a size of 20 cm sortimen.Keyword : Dendrocalamus asper, node, sortimen size, laminated board
Co-Authors Abda Abda Abdul Qodir Achmad Rijanto Anton Nugroho AR, Rusman Ariga Bahrodin Azmi, Tasya Auliya Ulul Bahrudin, Sirojul Damai, Reo Desi Natarina Sembiring Dewantara, Prana Dodi W. Irawanto Dodi W. Irawanto Dyah, Atika Isnaining Erna Herawati, Erna Erna Tri Asmorowati Estri Yosa Damanik Evalina Herawati Fadhilla, Suri Faruq, Ahmad Febrina Heryani Tarigan Harisyah Manurung Harpah, Novrida Hasibuan, Ulfa Zahara I Nyoman Jaya Wistara Ilahiyah, Iva Inayatul Ilahiyah, Iva Inyatul Indrawatiningsih, Nonik Jendro Zalukhu Jon Herianta Ginting Khasif, Mohamad Kurniawan, Juni Adi Kurniawan, Mochamad Oky Tri Lailatul Qomariyah, Lailatul Laily Masruroh, Laily Lubis, Muhammad Safi Lubis, Yunida Syafriani Marcelila Medynda Masruroh, Sayidah Afyatul Mislaini Moch. Sony Fauzi Mohammad Muslimin Mu’at, Mu’at Nabila, Fani Putri Nasution, Zaid Perdana Nazar Ikhwan Niswah MZ, Isniyatun Niswah, Isniyatun Novansyah, Fakrizal Nugroho, Rofiantoko Nur Kuswanti Nurul Hikmah Oding affandi Pradana, Angga Andi Putri Rafika Wulandari Ranisa Sagita Ridwanti Batubara Ridwanti Batubara Rohani, Ade Sri Rohanis Luthfiyyah Rahma Rudi Hartono Saleha Hannum Sari, Dian Candra Rini Novita Siregar, Naudi Hayati Siswanto, Sandu Situmorang, Syafizal Helmi Sucipto, Tito sukmo sudiono Sulaiman Ali Sutardi Sutardi Syahrul R, Syahrul Syarifuddin, Mukhamad Arief Syurkarni Ali T Towijaya Tarmidi Tarmidi Utami, Wika Dianita Utami Dianita Wawan Aries Widodo Yunus Afifuddin Zain Lillahulhaq Zulfika, Dicki Nizar