Paridah M. Tahir

Paridah M. Tahir
Universiti Putra Malaysia | UPM · Institute of Tropical Forestry and Forest Product

PhD Wood Chemistry, Univ of Aberdeen, Scotland

About

353
Publications
274,130
Reads
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10,396
Citations
Citations since 2016
164 Research Items
8930 Citations
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201620172018201920202021202205001,0001,5002,000
201620172018201920202021202205001,0001,5002,000

Publications

Publications (353)
Article
Full-text available
Agarwood is a valuable aromatic resinous wood that is biosynthesised when a fungal attack injures the healthy wood tissue of the Aquilaria tree. The magnitude of infection related to sap flow (SF) is one of the most critical functional traits to evaluate the tree’s response to various adverse conditions. Therefore, the objective of this study was t...
Article
Full-text available
This study assessed the machining properties of 11-year-old Eucalyptus urophylla × E. grandis, known as E. urograndis wood, that was infected by stem canker disease, Chrysoporthe deuterocubensis. Instead of being discarded directly, the study aimed to explore the possibility of infected trees being used in other applications such as furniture. Sawi...
Article
Full-text available
The study on the mechanical properties of cross laminated timber (CLT) panels made from tropical hardwood species is essential in order to promote the use of CLT as buildings material in Malaysia. The objective of this study were to evaluate the mechanical performance and failure characteristics of CLT fabricated from tropical timbers species, name...
Article
Full-text available
Using a vacuum pressure cylinder, Gigantochloa scortechinii was treated with boron and copper chrome boron (CCB) preservative at different concentrations of 2% and 3%. The treatability of untreated and treated bamboo, as well as its physical and mechanical properties, were investigated. Both preservatives showed a high level of penetration into the...
Article
Full-text available
Oil palm trunk (OPT) veneers have the potential to be used in the production of plywood for marine applications. However, OPT is not resistant to fungal decay and termites, limiting its use in the production of marine plywood. As a result, in this study, phenolic resin treatment was used to improve the biological durability of OPT and produce marin...
Article
Full-text available
The aim of this study was to evaluate the effect of heat treatment on surface roughness, shear strength and hardness of two tropical wood species, namely batai (Paraserainthes falcataria) and sesendok (Endospermum malaccensis). Samples were exposed to temperature levels of 120 ºC and 180 ºC for 3 h and 6 h. The surface quality of the control and he...
Book
Full-text available
Oil Palm Biomass for Composite Panels: Fundamentals, Processing, and Applications explains the preparation and utilization of oil palm biomass for advanced composite panel products. It introduces the fundamentals of oil palm biomass and wood-based panel products, including basic properties, durability, deterioration, and adhesives. It also includes...
Article
Full-text available
An effective statistical tool for increasing and boosting the production of xylanase and pectinase by Bacillus amyloliquefaciens ADI2 during submerged fermentation (SmF) appears to be the response of surface methodology (RSM) using the central composite design (CCD). Optimum production was achieved under fermentation conditions of a temperature of...
Article
Full-text available
Forest covers 4.06 billion hectares (ha) or 31% of the total land area worldwide, where 93% (3.75 billion ha) are natural regenerating forests and the remaining 7% (294 million ha) are planted forests. Eucalyptus spp., being one of the most important plantation species, has been planted in 95 countries around the world, and the area of plantation h...
Article
Full-text available
Forest covers 4.06 billion hectares (ha) or 31% of the total land area worldwide, where 93% (3.75 billion ha) are natural regenerating forests and the remaining 7% (294 million ha) are planted forests. Eucalyptus spp., being one of the most important plantation species, has been planted in 95 countries around the world, and the area of plantation h...
Article
Oil palm plantation has been widely planted in tropical countries, particularly Malaysia. Oil palm biomasses as by-products of palm oil production, therefore, exist abundantly. Four kilograms of dry biomasses are generated for every kilogram of palm oil produced. Empty fruit bunch is a major solid waste produced by palm oil mills, constituting 23%...
Chapter
Recently, the volume of palm oil production has increased globally to meet the demand for palm oil and its products. Today, Indonesia is the leading palm oil producer in the world with a value of 42.5 million metric tons, followed by Malaysia (18.50 million metric tons), Thailand (2.80 million metric tons), Colombia (1.53 million metric tons), Nige...
Chapter
It is believed that laminated veneer lumber (LVL) has great potential in the furniture industry for both economic and esthetic reasons. These wood composites are closer to solid wood in appearance, texture, and structure than any other alternative wood substitute. Moreover, LVL can be easily manufactured to meet consumers-based requests, demand, an...
Preprint
Full-text available
Forest covers 4.06 billion hectares (ha) or 31% of the total land area worldwide, where 93% (3.75 billion ha) are natural regenerating forests and the remaining 7% (294 million ha) are planted forests. Eucalyptus (Eucalyptus spp.), being one of the most important plantation species, has been planted in 95 countries around the world, and the area of...
Book
Full-text available
This book provides an overview of the awareness on formaldehyde emission and its effects among plywood stakeholders, users, and general public. The levels of awareness were determined based on a survey conducted on 28 plywood manufactures, 433 plywood factory workers, 40 agents/importers/traders, 163 intermediate users, and 2000 public respondents...
Technical Report
Full-text available
The key objective of this study is to determine the actual formaldehyde emission level emitted from local and imported plywood, MDF and particleboard. While study on plywood has been completed, studies on MDF and particleboard are on-going. Based on the results of earlier study, and after taking the capability of the local wood-based panel factorie...
Article
Full-text available
The present work reports the biobleaching effect on OPEFB pulp upon utilisation of extracellular xylano-pectinolytic enzymes simultaneously yielded from Bacillus amyloliquefaciens ADI2. The impacts of different doses, retention times, pH, and temperatures required for the pulp biobleaching process were delineated accordingly. Here, the OPEFB pulp w...
Article
The production of nanocrystalline cellulose (NCC) usually takes place through a series of chemical processes like pulping, bleaching and acid hydrolysis process. The hydrolysis processes using strong acid like H2SO4 can help the NCC to have a high degree of crystallinity and imparts a negative surface charge to NCC. However, the application of H2SO...
Article
Full-text available
Eucalyptus hybrid has been planted rigorously in wet tropical regions including Malaysia. Recently, there was a report on the occurrence of stem canker on these trees. However, the extent of the infections by this stem canker is unknown. The aim of this study was to evaluate the influence of stem canker disease, Chrysoporthe deuterocubensis, on the...
Article
Full-text available
The objective of this study is to determine the effects of alkaline copper quaternary (ACQ) treatment on the surface quality and bonding performance of four Malaysian hardwood species, namely batai, sesenduk, rubberwood and kedondong. The samples were impregnated with 2% ACQ preservatives and bonded with phenol-resorcinol–formaldehyde resin for cro...
Article
Full-text available
Eucalyptus pellita F. Muell. is currently the predominant tree species deployed for tree plantation establishment in some parts of Borneo, particularly Sabah state, Malaysia. Its low disease susceptibility, good growth and form, and desirable wood properties make E. pellita particularly suitable for plantation development in the wet tropical region...
Article
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Over the last decade, the progressive application of natural fibres in polymer composites has had a major effect in alleviating environmental impacts. Recently, there is a growing interest in the development of green materials in a woven form by utilising natural fibres from lignocellulosic materials for many applications such as structural, non-st...
Article
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The major hurdle in melt-processing of ultra-high molecular weight polyethylene (UHMWPE) nanocomposite lies on the high melt viscosity of the UHMWPE, which may contribute to poor dispersion and distribution of the nanofiller. In this study, UHMWPE/cellulose nanofiber (UHMWPE/CNF) bionanocomposites were prepared by two different blending methods: (i...
Article
A dopamine (DA) biosensor was developed based on polypyrrole/tannin/cetyltrimethylammonium bromide (PPy/TA/CTAB) nanocomposite and central composite rotatable design (CCRD) was employed for the optimization of conditions. Chemical polymerization of the PPy/TA in the presence of a cationic surfactant, CTAB, reduced the particle size of composite and...
Article
Full-text available
Rice husk is one of the agricultural by-products produces worldwide. During the recent decade, much attention has been focused on rice husk utilization for composite materials. Apart from the rice industry's huge amount of rice husk, it has a dominant agricultural waste position due to its great properties. The treatments or modifications of fiber...
Article
Full-text available
Given the rising concern over the potential health effects of formaldehyde in indoor environment released from wood composite products bonded with formaldehyde-based resin, this study examines the awareness, knowledge, and perception of formaldehyde emission from wood based-based composite products and its effect on health among design professional...
Article
Full-text available
Green polyurethane from plant oil-based such as Jatropha oil has recently received attention due to its environmental friendliness and sustainability. With incorporation of nanocellulose even though at low loadings in polymer matrices has shown a significant improvement. However, limited research has been done on different cellulose nanowhisker (CN...
Article
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The thermal, thermo-mechanical and flammability properties of kenaf core hybrid polymer nanocomposites reinforced with unbleached and bleached nanocrystalline cellulose (NCC) were studied. The studied chemical composition found that unbleached NCC (NCC-UB) had 90% more lignin content compared to bleached NCC (NCC-B). Nanocelluloses were incorporate...
Article
Full-text available
Conventional UHMWPE molding involves long pressure holding duration, nevertheless in the presence of filler such as cellulose nanofiber (CNF), this may contribute to filler degradation. This study optimized the compression molding parameters of UHMWPE/ CNF bio-nanocomposite by using response surface methodology (RSM) in consideration of temperature...
Article
Full-text available
This study investigated the effects of different citric acid content on the physico-mechanical and biological durability of rubberwood particleboard. Particleboards with density of 700 kg/m3 were produced with three different citric acid contents, namely 10, 15 and 20 wt%. Particleboards made from 10 wt% urea formaldehyde (UF) resin were served as...
Article
The effects of wood species, clamping pressure and glue spread rates on the joint strength of cross-laminated timber (CLT) manufactured from four tropical hardwood species were studied. CLT boards were fabricated from batai (Paraserianthes falcataria), sesendok (Endospermum malaccensis), rubberwood (Hevea brasiliensis) and kedondong (Canarium sp.)....
Article
Full-text available
The properties of CLT can be affected by the type of adhesives used. The thermal properties of the adhesive that join the timber together is essential to determine the thermal endurance of the CLT product. In this study, two types of adhesives were used to join the cross laminated timber (CLT) manufactured from Acacia mangium namely phenol resorcin...
Article
Carboxymethyl starch (CMS) was produced from sago starch via carboxymethylation. The CMS with different degree of substitution (DS) ranges from 0.4 to 0.8 were mixed with polyethylene glycol (PEG) of different molecular weight and distilled water and the hydrogel was cured by electron beam irradiation with doses ranging from 25 to 35 kGy. The resul...
Article
Evaluation of the effects of 8% methanol (MeOH) pretreatment on the finishing performance of Acacia mangium wood was carried out using different coating systems, i.e., nitrocellulose (NC), acid catalysed (AC) and polyurethane (PU). The coated surfaces were tested for adhesion test-cross cut, scratch resistance test, abrasion test, impact resistance...
Article
Full-text available
Incorporation of nanocellulose could improve wear resistance of ultra-high molecular weight polyethylene (UHMWPE) for an artificial joint application. Yet, the extremely high melt viscosity of the polymer may constrict the mixing, leading to fillers agglomeration and poor mechanical properties. This study optimized the processing condition of UHMWP...
Article
Full-text available
Mechanical strength, thermal conductivity and electrical breakdown of polypropylene/lignin/kenaf core fiber (PP/L/KCF) composite were studied. PP/L, PP/KCF and PP/L/KCF compositeswith diferent fiber and lignin loading was prepared using a compounding process. Pure PP was served as control. The results revealed that tensile and flexural properties o...
Article
Full-text available
Citric acid (CA) can be found naturally in fruits and vegetables, particularly citrus fruit. CA is widely used in many fields but its usage as a green modifying agent and binder for wood is barely addressed. Esterification is one of the most common chemical reactions applied in wood modification. CA contains three carboxyl groups, making it possibl...
Article
Full-text available
The aim of this study is to assess the curing behaviour and thermal properties of phenol–formaldehyde (PF) adhesives with different degree of tannin substitution using several thermal analysis techniques. Tannin from Acacia mearnsii bark was copolymerized with PF to form a bonding agent for plywood. The resin mixture was heated at 50 °C prior to ad...
Article
Full-text available
The current research trend for excellent miscibility in polymer mixing is the use of plasticizers. The use of most plasticizers usually has some negative effects on the mechanical properties of the resulting composite and can sometimes make it toxic, which makes such polymers unsuitable for biomedical applications. This research focuses on the impr...
Chapter
Natural fibres such as pineapple leaf fibre (PALF) have the advantages of low density, lightweight, low cost, biodegradability and renewability. Recently, many research works have been conducted all over the world on utilization of natural fibres as a reinforcing material for composites for variety of applications. Nonetheless, the inherent lack of...
Article
A 50:50 kenaf core to rubberwood ratio were used to fabricate low-density fibreboards. Firstly, the fibres were co-refined at 180 °C for 10 min. Refined fibres were sieved on six levels of size distribution. Results on fibre size distribution concluded that the co-refined fibres were similar in size, in comparison to commercial rubberwood fibres. L...
Article
Full-text available
Kenaf (Hibiscus cannabinus) stem which consists of whole stem (KWS), core (KC) and bast (KB) were used to fabricate homogeneous and hybrid kenaf-rubberwood particleboards. Two types of panels namely homogeneous (100%RW, 100%KWS, 100%KC and 100%KB) and hybrid (70%RW- 30%KWS, 70%RW- 30%KC and 70%RW30%KB) particleboards were manufactured and examined...
Article
Full-text available
The effects of carbon fibre hybridisation on the thermal properties of woven kenaf-reinforced epoxy composites were studied. Woven kenaf hybrid composites of different weave designs of plain and satin and fabric counts of 5 × 5 and 6 × 6 were manually prepared by a vacuum infusion technique. A composite made from 100% carbon fibre was served for a...
Article
Full-text available
In this study, three-layered Cross-Laminated Timber (CLT) manufactured from Acacia mangium wood panels were developed by using two different types of adhesives, namely, phenol resorcinol formaldehyde (PRF) and one-component polyurethane (PUR). The aim of this work is to investigate and compare the physical and mechanical properties of CLT manufactu...
Article
Full-text available
Present research deals with the various ratio (0%, 40%, 50%, and 60% by wt%) of phenolic resin and epoxy resin blend composites. Phenolic resin/Epoxy resin blend composites were manufactured by hand lay-up technique and investigated the thermal properties (thermogravimetric analysis) of composites and evaluated optimum ratio of epoxy in phenolic co...
Article
Full-text available
The conventional isolation of cellulose nanofibers (CNFs) process involves high energy input which leads to compromising the pulp fiber’s physical and chemical properties, in addition to the issue of elemental chlorine-based bleaching, which is associated with serious environmental issues. This study investigates the characteristic functional prope...
Article
Full-text available
This work focus on the effects of SRF (Slow Release Fertilizer) + NPK fertilizer rates on the properties of rubberwood particleboards produced. The particleboards were fabricated using rubber tree trial clone RRIM 2002. RRIM 2002 clone still in trial plot with age of 4-year old and classified as Latex Timber Clone which estimated to produce large w...
Article
Oil palm empty fruit bunch (EFB) is the most significant waste generated from the agricultural industry in Malaysia. Composting is one of the potential approaches to utilize EFB. However, composting of EFB is a time-consuming process, thus impractical for industrial application. The composting process can be shortened by introducing competent fungi...
Article
There are many factors that affect the formaldehyde emission from plywood such as wood species and moisture content. As for wood species, colour appearance was found to affect significantly the formaldehyde emission. Therefore, the effects of tropical wood species with different colour on the formaldehyde emission of manufactured plywood were studi...
Article
Full-text available
Wood or natural-based products will continue to be susceptible to degradation. However, this degradation process can be slowdown by introducing additives or certain treatment. The properties (i.e. mechanical, physical, bonding etc.) of wood-based panel such as Medium Density Fiberboard (MDF) and Particleboard (PB) degrades in function with period o...
Article
Full-text available
Phenolic based PALF/nanoclay hybrid composites was prepared by adding Montmorillonite (MMT) as filler at different loading (1%, 2% and 3%) by using hot press technique. Obtained results indicated that adding MMT in PALF/phenolic composites considerably improves the tensile and flexural strength and modulus. Tensile properties showed that the tensil...
Article
Full-text available
Plant oils and their derivatives have been vigorously exploited as alternatives for synthesis of epoxides due to depletion of petroleum resources. In this study, crude jatropha oil (CJO) was subjected to a transesterification process to form jatropha methyl esters (JME) using peroxyacetic acid generated in situ from hydrogen peroxide and acetic aci...
Article
Cross laminated timber (CLT) was fabricated from Acacia mangium wood by using phenol resorcinol formaldehyde (PRF) and one component polyurethane (PUR) as binders. The purpose of the study was to evaluate the bond integrity of A. mangium CLT produced using different working parameters. The assemblies were pressed at 30 °C for 30 min using three pre...
Article
Full-text available
This study aimed to compare the performance of fabricated microbially induced precipitated calcium carbonate-(MB-CaCO 3) based red seaweed (Kappaphycus alvarezii) bio-polymer film and commercial calcium carbonate-(C-CaCO 3) based red seaweed bio-film with the conventional biodegradable mulch film. To the best of our knowledge, there has been limite...