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Effects of Planting Density of Rubber Tree Clone(RRIM 2020 Clone and RRIM 2025 Clone)Wood to Particleboard Properties

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Journal of Renewable Materials 2022年第7期10卷 1951-1960页

作者： Juliana Abdul Halip Syeed SaifulAzry Osman Al-Edrus Seng Hua Lee paridah md.tahir Nor Yuziah Mohd Yunus Mohd Sapuan Salit Ahmad Ilyas Rushdan Institute of Tropical Forestry and Forest Products(INTROP) Universiti Putra Malaysia(UPM)Serdang43400Malaysia Faculty of Technology Management and Business Universiti Tun Hussein Onn Malaysia(UTHM)Parit Raja86400Malaysia Department of Wood Industry Faculty of Applied SciencesUniversiti Teknologi MARA(UiTM)Bandar Tun Abdul RazakJengkaPahang26400Malaysia School of Chemical and Energy Faculty of EngineeringUniversiti Teknologi MalaysiaJohor Bahru81310Malaysia Centre for Advanced Composite Materials Universiti Teknologi MalaysiaJohor Bahru81310Malaysia

The depletion of log resources encourages research into alternative ways to sustain the wood ***,the 4-year-old Rubber Research Institute of Malaysia(RRIM)clones series,RRIM 2020 and RRIM 2025,were chosen as potential raw materials for particleboard in this *** purpose of this study was to assess the effects of planting density and rubber tree clones on the mechanical and physical properties of single-layer *** planting densities used were low,moderate-low,moderate-high,and high,representing 500,1000,1500,and 2000 trees/ha,*** to manufacturing,the RRIM 2000 series clone trees were harvested,cut,chipped,flaked,and *** mechanical and physical properties were evaluated in accordance with the Japanese Industrial Standard(JIS A 5908-2003).The findings revealed that both planting density and clone had a significant impact on the mechanical and physical properties of particleboard with a thickness of 10 mm and a density of 700 kg/*** 2020 specimens with low planting density had superior modulus of elasticity(MOE),modulus of rupture(MOR),and internal bonding(IB)values of 2415,19,and 1.7 MPa,***,moderate-low planting density demonstrated the lowest thickness swelling(TS)and water absorption(WA)values and was comparable to control particleboard from commercial clone Prang Besar(PB),*** terms of rubber clones,RRIM 2020 particleboard met the minimum requirements of the JIS standard for mechanical properties and outperformed RRIM *** study recommended a low planting density of 500 trees/ha and the RRIM 2020 clone as a suitable raw material for particleboard manufacturing with a ten percent urea formaldehyde resin content.

关键词： Rubberwood RRIM 2020 RRIM 2025 mechanical physical urea formaldehyde

Isolation and Characterization of Cellulose Whiskers from Kenaf (<i>Hibiscus cannabinus</i>L.) Bast Fibers

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Journal of Biomaterials and Nanobiotechnology 2013年第1期4卷 37-44页

作者： Lukmanul Hakim Zaini Mehdi Jonoobi paridah md. tahir Samaneh Karimi Department of Engineering Science and Mathematics Lulea University of Technology Lulea Sweden Faculty of Forestry Universiti Putra Malaysia Serdang Malaysia Laboratory of Biocomposite Technology Institute Tropical Forestry and Forest Products (INTROP) Universiti Putra Malaysia Serdang Malaysia

Cellulose whiskers were isolated from kenaf (Hibiscus cannabinus L.) bast fibers via sulfuric acid and hydrochloric acid hydrolysis. Raw kenaf bast, NaOH treated, bleached fibers, sulfuric acid whiskers (SAW) and hydrochloric acid whiskers (HClW) morphology, functional groups, crystallinity, and thermal stability were characterized. The TEM images showed that the sulfuric acid and HCl whiskers have average diameters and length range of 3 nm and 100 - 500 nm, respectively. The FTIR study indicated that during the conversion process, most of the hemicellulose and almost all the lignin were removed by the NaOH and subsequent bleaching treatments. The crystallinity of HCl whiskers was found to be higher (84%) than that of sulfuric acid whiskers (72%). Thermogravimetric analysis indicated that HCl whiskers had better thermal stability than the sulfuric acid ones. In addition, a two-stage decomposition behavior was revealed by TGA in the sulfuric acid whiskers because of incorporation of the sulfate group with the cellulose crystals.

关键词： Cellulose Whiskers Kenaf Bast Fibers Crystallinity

The Role of Bamboo Nanoparticles in Kenaf Fiber Reinforced Unsaturated Polyester Composites

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Journal of Renewable Materials 2018年第1期6卷 75-86页

作者： Enih Rosamah Abdul Khalil HPS SWYap Chaturbhuj KSaurabh paridah Mtahir Rudi Dungani Abdulwahab FOwolabi Faculty of Forestry Mulawarman UniversityCampus Gunung KeluaSamarinda 75119East KalimantanIndonesia School of Industrial Technology Universiti Sains Malaysia11800 PenangMalaysia Laboratory of Biocomposite Technology Institute of Tropical Forestry&Forest ProductsUniversiti Putra Malaysia43400 SerdangMalaysia School of Life Sciences and Technology Gandung Labtex XIInstitut Teknologi BandungBandung 40132Indonesia

In this study,bamboo nanoparticles in concentration ranges from 0-5%were incorporated along with woven/nonwoven kenaf fiber mat into unsaturated polyester and the developed composites were further *** chips were subjected to ball milling process for the synthesis of nanoparticles with a particle size of 52.92 *** effect that the incorporation of nanoparticles had on various properties of reinforced composites was further *** to the high surface area of nanoparticles,incorporation of 3%of nanofillers contributed towards strong bonding and better wettability with matrix,thus resulting in excellent mechanical properties and thermal characteristics in reinforced unsaturated polyester ***,mechanical characteristics of reinforced composites were deteriorated by the addition of a higher percentage of nanoparticles(>3%)due to agglomeration,as confirmed by scanning electron ***,ordered structural arrangement of woven kenaf textile fiber showed enhancement in interfacial adhesion and promoted superior mechanical strength in reinforced composites as compared with nonwoven composites.

关键词： Bamboo nanoparticles kenaf fiber reinforced composites fatigue life mechanical properties thermal properties

Effect of Ratio of Face to Core Particles on Mechanical and Physical Properties of Particleboard Manufactured from Ethiopian Highland Bamboo

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Chinese Forestry Science and Technology 2009年第1期8卷 7-14页

作者： SEYOUM Kelemwork paridah md.Tahi WONG Ee Ding RAHIM Sudin Forest Products Utilization Research Centre 2322 Addis AbabaEthiopia Faculty of Forestry Universiti Putra Malaysia43400 Serdang SelangorMalaysia Forest Research Institute Malaysia 52109 KepongKuala LumpurMalaysia

The study was conducted to evaluate effect of ratio of face to core particles on mechanical and physical properties of oriented strand board produced from Ethiopian highland ***-layered oriented particleboards were manufactured with 4 proportions of face to core particles at 750 kg/m^3 target *** percent urea formaldehyde resin was used as a *** and dimensional stability performances of all boards were assessed based on ISO *** results showed that modulus of rupture...

关键词： proportion strength internal bond screw withdrawal thickness swelling Ethiopian highland bamboo(Yushania alpine)

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用低分子酚醛树脂浸渍竹蔑（巨草竹属）

世界竹藤通讯 2008年第3期6卷 48-48页

作者： U.M.K.Anwar M.T.paridah 马来西亚林业研究所林产部

本文研究了用低分子酚醛树脂（LMWPF）浸渍竹篾（巨草竹属）。竹子样品是竹秆的基部和中部。采用真空法．用低分子酚醛树脂处理竹篾后，评估处理后的竹篾增重率加湿含率。竹篾浸渍在树脂增加的时间越长，其增重率就越高。浸渍120min后... 详细信息

本文研究了用低分子酚醛树脂（LMWPF）浸渍竹篾（巨草竹属）。竹子样品是竹秆的基部和中部。采用真空法．用低分子酚醛树脂处理竹篾后，评估处理后的竹篾增重率加湿含率。竹篾浸渍在树脂增加的时间越长，其增重率就越高。浸渍120min后，基部和中部的增重率分别提高了4．51％和7．52％。

关键词：竹篾巨草竹低分子酚醛树脂浸渍