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Kamran Choupani Chaydarreh

Bio: Kamran Choupani Chaydarreh is an academic researcher from Tarbiat Modares University. The author has contributed to research in topics: Camellia oleifera & Composite material. The author has an hindex of 2, co-authored 3 publications receiving 14 citations.

Papers
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Journal ArticleDOI
TL;DR: In this article, the effect of ingredient ratios of rigid PU foam on foam performance and panel properties was investigated, and it was observed that the isocyanate (ISO) content and polyols (PO) type and content significantly change the foam and panel property.
Abstract: One-step manufacturing process (in-situ foaming) provide great potential for the production of foam core panels. Polyurethane (PU) foam showed good applicability for use for in-situ foaming. Here, the effect of ingredient ratios of rigid PU foam on foam performance and panel properties is investigated. It was observed that the isocyanate (ISO) content and polyols (PO) type and content significantly change the foam and panel properties. Foam cell density, as the most important factor influencing the foam characteristics, was higher in foams with higher ISO and polyether content. Bending strength, internal bond and screw withdrawal resistance of the foam core panels were significantly enhanced when the ISO and polyether content was increased in the foam formulation. Varying the ISO content had no influence on panel properties with higher content of polyester (60%) in the PO blend. Varying the foam ingredient ratios did not change the thickness swelling, while the water absorption was dependent on the foam components ratios. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44722.

10 citations

Journal ArticleDOI
TL;DR: In this paper, a sandwich panel with particleboard as surface layers and rigid polyurethane (PU) foam as core layers was produced with a one-step in situ foaming proces.
Abstract: In this research, a sandwich panel with particleboard as surface layers and rigid polyurethane (PU) foam as core layers (foam-core particleboard) was produced with a one-step in situ foaming proces...

8 citations

Journal ArticleDOI
TL;DR: In this article , different TOCS particle sizes were used in the core and surface layers of the 3-layer particleboard to systematically investigate the effects of particle geometry on physical and mechanical properties.

7 citations

Journal ArticleDOI
TL;DR: In this article , the interaction between particle size and mixing ratio on the porosity of particleboard and in consequence its effect on the physical and mechanical properties of panels was investigated, and the results showed that particleboard made with TOCS particles had higher densities than those of commercial wood particles.
Abstract: Abstract This study investigated the interaction between particle size and mixing ratio on the porosity of particleboard and in consequence its effect on the physical and mechanical properties of panels. Tea Oil Camellia Shell (TOCS), which could provide 1.8 million tons of lignocellulose raw material annually, can be a useful resource for particleboard production. In that regard, particleboards with different particle sizes (coarse and fine) and mixing ratios (wood and TOCS) bonded with Polymethylene polyphenyl polyisocyanate (pMDI) were investigated. The results showed that particleboard made with TOCS particles had higher densities than those of commercial wood particles. Furthermore, particleboards made with fine particles had lower porosity. The average values for physical and mechanical properties have shown that except for thickness swelling (TS), most properties were better with coarse particles. In terms of all properties, results showed that adding 50% of commercial wood in conjunction with TOCS particles regardless of particle size can offer acceptable results, which qualified all requirements of EN 312:2010 standard for P2-type particleboard (boards for interior fitments (including furniture) for use in dry conditions). In addition, due to the porous structure of the shells, TOCS-based particleboards have better thermal conductivity compared to wood-based particleboards.

4 citations

Journal ArticleDOI
TL;DR: In this article , the interaction between particle size and mixing ratio on the porosity of particleboard and in consequence its effect on the physical and mechanical properties of panels was investigated, and the results showed that particleboard made with TOCS particles had higher densities than those of commercial wood particles.
Abstract: Abstract This study investigated the interaction between particle size and mixing ratio on the porosity of particleboard and in consequence its effect on the physical and mechanical properties of panels. Tea Oil Camellia Shell (TOCS), which could provide 1.8 million tons of lignocellulose raw material annually, can be a useful resource for particleboard production. In that regard, particleboards with different particle sizes (coarse and fine) and mixing ratios (wood and TOCS) bonded with Polymethylene polyphenyl polyisocyanate (pMDI) were investigated. The results showed that particleboard made with TOCS particles had higher densities than those of commercial wood particles. Furthermore, particleboards made with fine particles had lower porosity. The average values for physical and mechanical properties have shown that except for thickness swelling (TS), most properties were better with coarse particles. In terms of all properties, results showed that adding 50% of commercial wood in conjunction with TOCS particles regardless of particle size can offer acceptable results, which qualified all requirements of EN 312:2010 standard for P2-type particleboard (boards for interior fitments (including furniture) for use in dry conditions). In addition, due to the porous structure of the shells, TOCS-based particleboards have better thermal conductivity compared to wood-based particleboards.

4 citations


Cited by
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Journal ArticleDOI
01 Oct 2021
TL;DR: In this article, the effect of infill pattern, density and material types of 3D printed cubes under quasi-static axial compressive loading was investigated, and the proposed samples wer...
Abstract: The present research work is aimed to investigate the effect of infill pattern, density and material types of 3D printed cubes under quasi-static axial compressive loading. The proposed samples wer...

31 citations

Journal ArticleDOI
TL;DR: In this paper, the perceptions of Iranian furniture manufacturers were evaluated by means of ANP-based multi-type questionnaires, regarding the conditions and requisite features of lightweight panels in furniture manufacturing.
Abstract: Lightweight panels, as an eco-friendly element for furniture manufacturing, offer several potential market and production opportunities for many secondary woodworking companies. In this study, the perceptions of Iranian furniture manufacturers were evaluated by means of ANP-based multi-type questionnaires, regarding the conditions and requisite features of lightweight panels in furniture manufacturing. The ANP results revealed that product design, quality and price were effective sub-criteria for furniture manufacturers. The most important attributes for choosing panels during the manufacturing process were: lack of panel warping, product abundance in the market, and withdrawal resistance of connectors. Manufacturers indicated that they were aware of the advantages lightweight panels would bring them, but they were still in need of further persuasion concerning the quality and workability of lightweight panels. Combining lightweight and conventional panels for furniture manufacturing could lead to an increased interest in assuring furniture quality. In addition, further development of lightweight panels is necessary to increase the variation in the market.

20 citations

Journal ArticleDOI
TL;DR: A warp-knitted spacer fabric that is saturated with flexible polyurethane foam is used as the lower layer in this paper, which is then combined in order to form a reinforced upper layer.
Abstract: Nylon fabrics are used as the reinforcing upper layer. A warp-knitted spacer fabric that is saturated with flexible polyurethane foam is used as the lower layer. They are combined in order to form ...

14 citations

Journal ArticleDOI
14 Oct 2021
TL;DR: In this paper, depolymerized native lignin is used as a feedstock for high-performance bio-based polymeric materials, which is a major structural polymer in lignocellulosic biomass.
Abstract: Native lignin, a major structural polymer in lignocellulosic biomass, offers unique advantages as a feedstock for high-performance bio-based polymeric materials. In this work, depolymerized native ...

14 citations

Journal ArticleDOI
TL;DR: In this article, both physical and chemical optimization of a wax-based O/W emulsion for polyurethane (PU) foams is reported, which turns out to have the optimal composition, in terms of smaller oil droplets size, long-term stability, contact angle and surface tension measurements.

12 citations