Comparative Study of Bond Strength of Formaldehyde and Soya based Adhesive in Wood Fibre Plywood

Muttil, Nitin; Ravichandra, Ghanta; Bigger, Stephen W.; Thorpe, Graham; Shailaja, Dorbha; Singh, Swadesh Kumar

doi:10.1016/j.mspro.2014.07.002

Cited by 22 publications

(8 citation statements)

References 17 publications

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“…In the past few years, as recently reviewed by Ferdosian et al [7], some bio-based adhesives have been developed from a range of natural resources, including lignin [8], starch [1], tannin [9], vegetable oils [3], soy flour and soy protein [4]. However, there are still some properties to be sharpened to make those natural-based adhesives competitive in comparison to the traditional ones [10]. In this sense, bio-based polyurethanes seem to be an excellent alternative to petroleum-based products, overcoming the environmental drawbacks but, at the same time, providing suitable properties.…”

Section: Introductionmentioning

confidence: 99%

Preparation, Characterization and Mechanical Properties of Bio-Based Polyurethane Adhesives from Isocyanate-Functionalized Cellulose Acetate and Castor Oil for Bonding Wood

2017

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Nowadays, different types of natural carbohydrates such as sugars, starch, cellulose and their derivatives are widely used as renewable raw materials. Vegetable oils are also considered as promising raw materials to be used in the synthesis of high quality products in different applications, including in the adhesive field. According to this, several bio-based formulations with adhesion properties were synthesized first by inducing the functionalization of cellulose acetate with 1,6-hexamethylene diisocyanate and then mixing the resulting biopolymer with a variable amount of castor oil, from 20% to 70% (wt). These bio-based adhesives were mechanically characterized by means of small-amplitude oscillatory torsion measurements, at different temperatures, and standardized tests to evaluate tension loading (ASTM-D906) and peel strength (ASTM-D903). In addition, thermal properties and stability of the synthesized bio-polyurethane formulations were also analyzed through differential scanning calorimetry and thermal gravimetric analysis. As a result, the performance of these bio-polyurethane products as wood adhesives were compared and analyzed. Bio-polyurethane formulations exhibited a simple thermo-rheological behavior below a critical temperature of around 80-100 • C depending on the castor oil/cellulose acetate weight ratio. Formulation with medium castor oil/biopolymer weight ratio (50:50 % wt) showed the most suitable mechanical properties and adhesion performance for bonding wood.

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Section: Introductionmentioning

confidence: 99%

Preparation, Characterization and Mechanical Properties of Bio-Based Polyurethane Adhesives from Isocyanate-Functionalized Cellulose Acetate and Castor Oil for Bonding Wood

2017

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“…An important component in the production of panels is the resin, as it influences the physical and mechanical properties of the engineered wood-based product, varying the adhesive weight and the resin chemical composition. Commercial resins such as urea-formaldehyde and phenolformaldehyde release formaldehyde gas throughout the production process, which is toxic to humans (Kusumah et al 2017;Muttil et al 2014;Pan et al 2007;Zhou & Pizzi 2014). An alternative to the use of these adhesives is the castor oil-based bicomponent polyurethane resin, with oil of vegetable origin and without emission of toxic gases (Ferro et al 2018;Fiorelli et al 2019;Zau et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Use of Residues From the Cellulose Industry and Sugarcane Bagasse in Particleboards

et al. 2021

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The use of alternative materials such as lignocellulosic residues in the production of particleboards has increased considering that these residues are produced in large volumes and often do not have an appropriate destination. This research studied the use of residues from cellulose industries, sugarcane bagasse, and castor oil-based polyurethane resin in the production of wooden panels and evaluated the influence of using these residues on the physical and mechanical properties of the panels. The products were manufactured according to the Brazilian standard ABNT NBR 14810 and the requirements of the panels were evaluated based on national and international standards. All treatments partially met the regulatory requirements. The addition of bagasse led to an improvement in physical and mechanical properties, with treatment 2 (50% wood residue and 50% bagasse) presenting the best performance, which indicates the possibility of using panels with residues with non-structural purpose in environments to improve the thermoacoustic performance of rural buildings. The statistical analysis indicated that the percentage of bagasse was significant, improving the evaluated properties.

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“…In particleboard production, resin is an important component due its influence on physical and mechanical properties of the final wood product, including grammage and chemical composition. Commercial resins, such as urea-formaldehyde and phenolformaldehyde, release formalin gas during fabrication processes, which is toxic to humankind (Pan et al 2007;Muttil et al 2014;Kusumah et al 2017). A natural and sustainable alternative is the use of a castor oil bicomponent polyurethane resin (PU), which uses oil from ecological sources (Ferro et al 2015;Fiorelli et al 2018;Bertolini et al 2019a;Sugahara et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Use of sugarcane bagasse and industrial timber residue in particleboard production

Yano

Silva

Almeida

et al. 2020

BioRes

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Use of lignocellulosic materials in particleboard has turned into an alternative for the reuse of such materials, which are abundant and may have precarious disposal techniques. The present study fabricated particleboards using industrial sawmill waste from tropical hardwoods (a mix of species) and sugarcane bagasse with castor oil-based bicomponent polyurethane resin and evaluated the influence of the incorporation of sugarcane bagasse (0, 10, 20, 30, 40, and 50%) on the physical and mechanical properties of the composites. The particleboards were produced according to the Brazilian Standard ABNT NBR 14810 (2018), and performance requirements were assessed using Brazilian and international standards. Some of the particleboards met standardized requirements, with Treatment 5 (50% sawdust and 50% bagasse) showing better performance, indicating the possibility for use indoors in dry conditions. The addition of sugarcane bagasse increased dimensional stability of particleboards when compared with panels manufactured with timber residue. Statistical analysis indicated the percentage of bagasse was significant, increasing physical and mechanical properties when compared with the reference treatment.

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Comparative Study of Bond Strength of Formaldehyde and Soya based Adhesive in Wood Fibre Plywood

Cited by 22 publications

References 17 publications

Preparation, Characterization and Mechanical Properties of Bio-Based Polyurethane Adhesives from Isocyanate-Functionalized Cellulose Acetate and Castor Oil for Bonding Wood

Preparation, Characterization and Mechanical Properties of Bio-Based Polyurethane Adhesives from Isocyanate-Functionalized Cellulose Acetate and Castor Oil for Bonding Wood

Use of Residues From the Cellulose Industry and Sugarcane Bagasse in Particleboards

Use of sugarcane bagasse and industrial timber residue in particleboard production

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