scholarly journals Feasibility of using low resin content levels in the production of bamboo particle composite: basic properties

2021 ◽  
Vol 922 (1) ◽  
pp. 012005
Author(s):  
S A Bahari ◽  
F Abu ◽  
M N Zakaria ◽  
S Osman ◽  
E Appiah-Kubi
Keyword(s):  
Physical Properties ◽  
Urea Formaldehyde ◽  
Layered Composite ◽  
Resin Content ◽  
Raw Material ◽  
Particle Composite ◽  
Composite Board ◽  
Basic Properties ◽  
Mechanical And Physical Properties ◽  
Minimum Requirements

Abstract In this study, the suitability of Semantan bamboo (Gigantochloa scortechinii) particles in the production of single-layered composite board was investigated. The effects of different resin types and lower resin content levels on the basic properties (mechanical and physical properties) of particle composite board made from G. scortechinii were determined. The 12-mm thickness boards with dimension of 340 × 340 mm and targeted density of 660 kg/m3 were fabricated. Types of resin used were melamine urea formaldehyde (MUF) and urea formaldehyde (UF), while resin content levels were 3.5 and 5%. In general, the mechanical and physical properties of board blended with MUF resin were better than UF due to the presence of melamine in MUF that influenced the properties. Board made from 5% resin content were better in term of mechanical and physical properties than 3.5% resin content levels. 5% resin content level had increased the particles bonding ability, thus influenced the excellent properties of the board. However, in general, the properties of bamboo particle composite board in this study were not comparable to the board made from wood. Only IB properties of bamboo particle composite board exceeded the minimum requirements as stipulated in standards. As a consequence, the information of particle composite board made from bamboo is important in assessing bamboo’s usefulness as an alternative raw material for wood-based industries. The final results obtained could be used as reference for researchers and manufacturers.

scholarly journals Comparative Analysis of Knits from Peat Fibre and its Combinations with Other Natural Fibres

2017 ◽  
Vol 25 (0) ◽  
pp. 24-29
Author(s):  
Daiva Mikučioniené ◽  
Lina Čepukonė
Keyword(s):  
Comparative Analysis ◽  
Physical Properties ◽  
Water Adsorption ◽  
Structural Parameters ◽  
Air Permeability ◽  
Raw Material ◽  
Loop Length ◽  
Knitted Fabrics ◽  
Natural Origin ◽  
Mechanical And Physical Properties

Natural and man-made fibres of natural origin are more and more widely used, while consideration of sustainability is constantly increasing. The properties and processing behaviour of newly introduced fibres of natural origin are usually compared and often predicted on the basis of widely investigated fibres; however, this prediction sometimes does not have any confirmed basis. Structural parameters and the majority of mechanical and physical properties of knitted fabrics depend on technical characteristics of the knitting machine, on the properties of yarns as well as on the origin of the raw material. This study attempts to develop knits from new natural peat fibres and their combination with widely used woollen, cotton and elastomeric Lycra yarns and to investigate the influence of peat fibre’s nature on structural parameters such as loop length, wale and course spacing, area density, the tightness factor and on main physical properties such as dimensional stability, air permeability and water adsorption.

Evaluation of mechanical and physical properties of industrial particleboard bonded with a corn flour–urea formaldehyde adhesive

2013 ◽  
Vol 44 (1) ◽  
pp. 48-51 ◽  
Author(s):  
Amine Moubarik ◽  
Hamid Reza Mansouri ◽  
Antonio Pizzi ◽  
Ahmed Allal ◽  
Fatima Charrier ◽  
...  
Keyword(s):  
Physical Properties ◽  
Urea Formaldehyde ◽  
Corn Flour ◽  
Mechanical And Physical Properties

EVALUATION OF MECHANICAL PROPERTIES OF CFRP BY VARTM AND ITS APPLICATION

2006 ◽  
Vol 20 (25n27) ◽  
pp. 3896-3901 ◽  
Author(s):  
YUN-HAE KIM ◽  
JIN-HO SON ◽  
BYUNG-KUN CHOI ◽  
YOUNG-DAE JO ◽  
KUK-JIN KIM ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Resin Transfer Molding ◽  
Mechanical Tests ◽  
Resin Content ◽  
Automobile Engine ◽  
Transfer Molding ◽  
Mechanical And Physical Properties ◽  
Physical Tests ◽  
Vartm Process

In the present study, we contrast the change of mechanical and physical properties between VaRTM (Vacuum Assisted Resin Transfer Molding) and hand lay-up process. In the results of mechanical tests, VaRTM specimen is stronger than hand lay-up specimen and hand lay-up specimen became delamination. In the results of physical tests, the resin content of VaRTM specimen is lower than hand lay-up specimen. On micrograph, the strength of specimen by VaRTM between fiber and resin is stronger than that of one by hand lay-up. And the specimen by hand lay-up contains more defects than one by VaRTM. So, VaRTM process can practically apply for automobile engine hood. This paper shows that VaRTM process is one of the most suitable processes for composite parts of automobile.

Selected properties of particleboard made of raspberry Rubus idaeus L. lignocellulosic particles

2019 ◽  
Vol 105 ◽  
pp. 113-124
Author(s):  
ANITA WRONKA ◽  
GRZEGORZ KOWALUK
Keyword(s):  
Physical Properties ◽  
Bending Strength ◽  
Fractional Composition ◽  
Strength Criterion ◽  
Rubus Idaeus ◽  
Raw Material ◽  
Laboratory Conditions ◽  
Mechanical And Physical Properties ◽  
European Standards

Selected properties of particleboard made of raspberry Rubus idaeus L. lignocellulosic particles. The aim of the research was to confirm the possibility of using lignocellulosic particles of raspberry Rubus idaeus L. stalks as an alternative raw material in particleboard technology. Within the scope of work, it was to produce particleboards from raspberry lignocellulosic particles in laboratory conditions, and to investigate selected mechanical and physical properties of the produced boards. In addition to the aforementioned tests, the characterization of the lignocellulosic raw material used in the tests (density, bark share, fractional composition) was carried out. The tests have shown that it is possible to produce the furniture particleboards with use the lignocellulosic particles of raspberry Rubus idaeus L. To meet the requirements of the European standards for furniture panels, such particleboards must contain less than 50% of raspberry particles with density 650 kg/m3 (due to the bending strength criterion).

scholarly journals Pengaruh Suhu dan Waktu Kempa Terhadap Sifat Fisik dan Mekanik Papan Komposit dari Serat Tkks Berperekat Gambir Berlapis Anyaman Bambu

2018 ◽  
Vol 13 (2) ◽  
pp. 54
Author(s):  
Junaidi -
Keyword(s):  
Moisture Content ◽  
Physical And Mechanical Properties ◽  
Layered Composite ◽  
National Standards ◽  
Raw Material ◽  
Modulus Of Rupture ◽  
Thickness Swelling ◽  
Composite Board ◽  
Empty Fruit Bunches ◽  
Pressing Time

Fiber from oil palm empty fruit bunches (OPEFB) can be used as a raw material for the production of composite board.  Gambier can be used in a natural adhesive because of its high tannin content.  Appropriate material to veneer the board and the correct temperature and pressing time are needed to improve the quality of this composite board. This research was to discover the optimal temperature, needed to make woven bamboo veneer composite board from OPEFB fiber and  gambier based adhesive that can fulfill the Indonesian National Standards for veneered composite boards and the pressing time required for the board to reach thermal equilibrium. Results showed that both temperature and pressing time have a significant influence on density, moisture content, thickness swelling and modulus of rupture (MOR) of the boards but not on the internal bond strength or the compression strength parallel to the grain.  Multi-layered composite board pressed at 1300C has weaker physical and mechanical properties than that pressed at  1450C, or 1600C.  Twenty-five minutes of pressing time yielded a better product than 15 minutes and the combination of 25 minutes and 1450C proved to be optimal for the curing of the gambier based adhesive used with 8.4% moisture content fibers. Use of woven bamboo veneer resulted in boards that reached the density, moisture content, thickness swelling at 24 hours (PT24) and MOR National standards SNI 03-2105-2006 for standard veneered particle board however it failed to reach the standard for modulus of elasticity (MOE). The bonding strength of the boards reached the Nation Standard SNI 01-5008.7-1999 of 3.5 kg/cm2 minimum for structural veneered boards.

scholarly journals EMBALAGENS CARTONADAS COMO MATÉRIA-PRIMA NA FABRICAÇÃO DE COMPÓSITOS

Nativa ◽  
2018 ◽  
Vol 6 (2) ◽  
pp. 177
Author(s):  
Talita Baldin ◽  
Maiara Talgatti ◽  
Amanda Grassamann da Silveira ◽  
Bruna Gabrieli Resner ◽  
Elio José Santini
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Internal Bond ◽  
Urea Formaldehyde ◽  
Eucalyptus Grandis ◽  
Raw Material ◽  
Thickness Swelling ◽  
Wood Particles ◽  
Sustainable Materials ◽  
Waste Particles

O objetivo do presente trabalho foi avaliar o potencial de uso de partículas de resíduos de embalagens cartonadas e partículas de Eucalyptus grandis para a fabricação de compósitos, colados com adesivo à base de ureia-formaldeído. Foram utilizadas cinco diferentes proporções de madeira de E. grandis e embalagens cartonadas. As partículas de madeira e embalagens cartonadas foram produzidas em laboratório. A avaliação da qualidade dos compósitos envolveu a caracterização da geometria das partículas, das propriedades físicas: massa específica básica, teor de umidade de equilíbrio, absorção de água e inchamento em espessura após 2 e 24 horas de imersão em água e das propriedades mecânicas: flexão estática (MOE e MOR), resistência ao arrancamento de parafuso, ligação interna e dureza Janka. A incorporação de partículas de embalagens cartonadas proporcionou uma melhoria nas propriedades físicas em relação aos compósitos puros de madeira. Já para as propriedades mecânicas, compósitos com até 50% de embalagens cartonadas obtiveram melhores resultados, no entanto, a incorporação a partir de 75% ocasionou decadência nessas propriedades. Compósitos de madeira de E. grandis e embalagens cartonadas apresentaram potencial para utilização em ambientes internos e podem ser uma alternativa para a produção de compósitos sustentáveis e de boa qualidade.Palavra-chave: materiais sustentáveis, propriedades físicas e mecânicas, ureia-formaldeído. CARTONBOARD PACKAGING AS A RAW MATERIAL IN THE MANUFACTURE OF COMPOSITES ABSTRACT:The aim of this study was to evaluate the potential waste particles use of carton packaging and particles of E. grandis for the manufacture of particle boards, bonded with urea-formaldehyde-based adhesive. Five different proportions of E. grandis wood and cartons have been used. The wood particles and cartons were produced in the laboratory. The quality assessment panels involved characterizing the geometry of the particles, the physical properties: specific gravity, equilibrium moisture content, water absorption and thickness swelling after 2 and 24 hours of immersion in water and mechanical properties: flexural static (MOR and MOE), resistance to screw pullout, internal bond and Janka hardness. The incorporation of particulate cartons provided an improvement in physical properties relative to pure wood panels. As for the mechanical properties, panels of up to 50 % of cartons obtained best results, however, incorporating from 75 % decay caused these properties. The wood particleboard of E. grandis and cartons showed potential for use indoors and become an alternative for producing sustainable panels and of good quality.Keywords: sustainable materials, physical-mechanical properties; urea-formaldehyde. DOI:

scholarly journals Mechanical and Physical Properties of Particleboard from Untreated and Treated Kenaf Particles

2019 ◽  
Vol 16 (1) ◽  
pp. 60
Author(s):  
Nur Liyana Aifa Mahammad Asri ◽  
Ainil Idzaty Mohamed Anwar ◽  
Nur Atiqah Najib ◽  
Judith Gisip
Keyword(s):  
Mechanical Properties ◽  
Physical Properties ◽  
Bending Strength ◽  
Phenol Formaldehyde ◽  
Alkali Treatment ◽  
Thickness Swell ◽  
Strength Properties ◽  
Resin Content ◽  
Modulus Of Rupture ◽  
Minimum Requirements

Composite panels were manufactured from kenaf particles and treated with two different alkali treatments using 2% NaOH and 2% KOH with resin contents of 8% and 10% of phenol formaldehyde (PF) at medium density of 650kg/m3. The objectives of this study were to determine the mechanical properties in terms of its modulus of rupture (MOR), modulus of elasticity (MOE) and internal bond (IB), and physical properties namely thickness swelling (TS) and water absorption (WA) of treated kenaf board. The mechanical and physical tests were performed according to the Malaysian Standard (MS1787:2004). The minimum requirements value for MOE, MOR and IB were 2000 MPa, 14 MPa and 0.45 MPa respectively for furniture grade particleboards for use in humid conditions (PF2). According to Malaysian specifications for physical properties, the maximum requirement for thickness swell is 15%. Results indicated that both treated boards with NaOH and KOH showed an increase in strength properties compared to untreated particleboard. Particleboard treated with KOH exhibited the highest MOR and MOE values, while board with NaOH treatment gave the highest IB value. The boards with treated particles gave better performance in terms of physical properties. There were no significant differences in mechanical properties (MOR, MOE and IB) and physical properties for the different alkali treatment. The values of bending strength and IB strength increased with an increase in resin content, while TS and WA increased with a decrease in resin content. In conclusion, NaOH and KOH treated kenaf particles improved board performance and could be considered as an alternative material for particleboard production.

Feasibility of Using MDP Panels, Compared to Conventional Particleboards

2015 ◽  
Vol 668 ◽  
pp. 145-149
Author(s):  
Bárbara Maria Ribeiro Guimarães ◽  
José Benedito Guimarães Jr. ◽  
Jefferson Barbosa Campomori ◽  
Rafael Farinassi Mendes ◽  
Lourival Marin Mendes
Keyword(s):  
Physical Properties ◽  
Water Absorption ◽  
Urea Formaldehyde ◽  
Raw Material ◽  
Thickness Swelling ◽  
Gel Time ◽  
Pressing Cycle ◽  
Base Resin ◽  
Solids Content

The objective of this study was to investigate, by physical properties, the efficiency of MDP panels, compared to conventional particleboards, since MDP was considered as a raw material for the manufacture of these panels. MDP panels had the following composition: 20/60/20 face/core; a urea-formaldehyde adhesive was used, with a solids content of 55%; pH 8.42; viscosity of 420 Cp and gel time of 51 seconds. 12% of dry base resin were applied to the particles. The pressing cycle was 4 MPa, with a temperature of 160°C for a period of 8 minutes. The panels were produced with a density of 0.70g/cm3. We observed that with the exception of the physical properties of water absorption after 2 hours, the MDP showed lower physical properties (water absorption after 24 hours and thickness swelling after 2 hours and 24 hours of immersion in water) in relation to the panels conventional clusters. Thus demonstrating its superiority in relation to the physical properties of MDP compared to conventional agglomerated panels, emphasizing their use in this way.

scholarly journals Mechanical and physical properties of teak leaves waste/polyurethane composites for particleboard application

2020 ◽  
Vol 29 ◽  
pp. 2633366X2096250
Author(s):  
Masturi ◽  
WN Jannah ◽  
RM Maulana ◽  
T Darsono ◽  
Sunarno ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Physical Properties ◽  
Water Absorption ◽  
Raw Material ◽  
Industrial Scale ◽  
Test Results ◽  
Polyurethane Composite ◽  
Mechanical And Physical Properties ◽  
Value Of Water ◽  
Polyurethane Composites

A teak leaf waste/polyurethane composite has been made for particleboard application. Some fraction variations are performed on the use of polyurethane as a matrix with a range of 0.04–0.20 (w/w). Mechanical and physical properties have been tested on the composites produced. The test results showed that the highest compressive strength of the sample reaches 38.5 MPa for polyurethane fraction of 0.14 (w/w). The composite has a density of 1261 kg m−3 which is in accordance with the result of density on teak. The physical properties have been also investigated and it was found that the lowest value of water absorption is 1.38%. This result indicated that the composites produced are potentially to replace wood raw material in eco-friendly industrial scale.

Mechanical and Physical Properties of Particle Board Made from Silaned and NaOH Modified Kelampayan (Neolamarckia cadamba) Particles

2013 ◽  
Vol 812 ◽  
pp. 169-174
Author(s):  
Azizul Ishak ◽  
Siti Rafedah A. Karim ◽  
Hashim W. Samsi
Keyword(s):  
Physical Properties ◽  
Dimensional Stability ◽  
Internal Bond ◽  
Bending Strength ◽  
Treated Wood ◽  
Raw Material ◽  
Medium Density ◽  
Bond Properties ◽  
Particle Board ◽  
Mechanical And Physical Properties

The objective of this study is to determine the mechanical and physical properties of Particleboard made from modified particle of Kelampayan (Neolamarckia cadamba). The particles were modified with Silane and Sodium Hydroxide (NaOH) by soaked the particle for 24 hours with different ratio ( Kelampayan + Silane, Kelampayan + NaOH, and Kelampayan + Silane + NaOH). The result showed that the mechanical and dimensional stability of the treated wood were improved. Particleboard made from 0.8 mesh particles treated with Silane and NaOH were highest value of bending strength modulus of rapture (MOR) 22.89MPa, modulus of elasticity (MOE) 3916.88MPa and Internal Bond properties 0.48214 MPa whereby particleboard made from 0.5 mesh particles treated by Silane were highest value for bending strength (MOR) 15.75MPa, MOE 2905.34 and Internal Bond properties 0.5748MPa.Outcome of this proposed research will provided valuable databases to the wood based industry to use Kelampayan as an alternative raw material in their down streams production such as particleboard, medium-density board and chipboard manufacturing.

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