Thermally Active Medium-Density Fiberboard (MDF) with the Addition of Phase Change Materials for Furniture and Interior Design DOI Open Access
Julia Dasiewicz, Anita Wronka, Aleksandra Jeżo

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(16), P. 4001 - 4001

Published: Aug. 12, 2024

No matter where we reside, the issue of greenhouse gas emissions impacts us all. Their influence has a disastrous effect on earth's climate, producing global warming and many other irreversible environmental impacts, even though it is occasionally invisible to independent eye. Phase change materials (PCMs) can store release heat when abundant during day (e.g., from solar radiation), for use at night, or chilly days buildings need be heated. As consequence, less energy cool, which lowers emissions. Consequently, research thermally active medium-density fiberboard (MDF) with PCMs presented in this work. MDF useful interior design furniture manufacturing. The boards were created using pine (Pinus sylvestris L.) spruce (Picea abies fibers, urea-formaldehyde resin, PCM powder, phase transition temperature 22 °C, density 785 kg m-3, latent capacity 160 kJ kg-1, volumetric 126 MJ specific 2.2 kgK-1, thermal conductivity 0.18 W mK-1, maximum operating 200 °C. Before resination, wood fibers divided into two outer layers (16%) an layer (68% by weight). Throughout resination process, particles solely integrated inner fibers. mats hand. A hydraulic press (AKE, Mariannelund, Sweden) was used boards, its parameters 180 20 s/mm nominal thickness, 2.5 MPa unit pressing pressure. Five variants additive developed: 0%, 5%, 10%, 30%, 50%. According study, scores MOR, MOE, IB, screw withdrawal resistance (SWR) tests decreased content added, example, MOE 3176 1057 N mm-2, MOR 41.2 11.5 IB 0.78 0.27 mm-2. However, results thickness swelling water absorption indicate that do not exhibit substantial absorb water, retaining dimensional stability boards. positively increase 15.1 7.38% after 24 h soaking. panel's characteristics improved increasing concentration, according data. profiles all variations under consideration had somewhat U-shaped appearance; however, version 50% flatter form no obvious compaction panel surface. Therefore, certain mechanical physical manufactured panels enhanced well-chosen addition.

Language: Английский

Physical and Mechanical Analysis of Fiberboard Made Of MDF Residues and Phase Change Materials DOI Open Access
Gustavo Rodríguez, Cecilia Bustos, Alain Cloutier

et al.

Published: April 18, 2024

The wood-based panel industry is experiencing an excessive accumulation of solid residues from the production medium-density fiberboard (MDF) panels and moldings. It possible to create new MDF products with acceptable physical mechanical properties by revaluing residues. Additionally, those products’ thermal can be improved incorporating phase change materials (PCMs). This study aims develop a made residues, capable storing energy. Two types PCMs, two PCM ratios, adhesives were used produce eight different panels. vertical density profile, thickness swelling, water absorption, internal bond (IB), static bending – modulus elasticity (MOE) rupture (MOR) determined for each type. specific heat was also determined. results show panels’ densities greater than 700 kg/m3. Thickness swelling in 23% compared reference value control PCMs after incorporation. highest IB 1.30 MPa, which almost three times minimum required regulation standards. incorporation reduced Even though values obtained are sufficient comply set out ANSI standard A208.2 MOE 2072.4 MPa standards MOR 16.4 MPa. When microencapsulated used, increased more 100% over that develops feasible alternative using residues: energy has adequate properties.

Language: Английский

Citations

2
Thermally Active Medium-Density Fiberboard (MDF) with the Addition of Phase Change Materials for Furniture and Interior Design DOI Open Access
Julia Dasiewicz, Anita Wronka, Aleksandra Jeżo

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(16), P. 4001 - 4001

Published: Aug. 12, 2024

No matter where we reside, the issue of greenhouse gas emissions impacts us all. Their influence has a disastrous effect on earth's climate, producing global warming and many other irreversible environmental impacts, even though it is occasionally invisible to independent eye. Phase change materials (PCMs) can store release heat when abundant during day (e.g., from solar radiation), for use at night, or chilly days buildings need be heated. As consequence, less energy cool, which lowers emissions. Consequently, research thermally active medium-density fiberboard (MDF) with PCMs presented in this work. MDF useful interior design furniture manufacturing. The boards were created using pine (Pinus sylvestris L.) spruce (Picea abies fibers, urea-formaldehyde resin, PCM powder, phase transition temperature 22 °C, density 785 kg m-3, latent capacity 160 kJ kg-1, volumetric 126 MJ specific 2.2 kgK-1, thermal conductivity 0.18 W mK-1, maximum operating 200 °C. Before resination, wood fibers divided into two outer layers (16%) an layer (68% by weight). Throughout resination process, particles solely integrated inner fibers. mats hand. A hydraulic press (AKE, Mariannelund, Sweden) was used boards, its parameters 180 20 s/mm nominal thickness, 2.5 MPa unit pressing pressure. Five variants additive developed: 0%, 5%, 10%, 30%, 50%. According study, scores MOR, MOE, IB, screw withdrawal resistance (SWR) tests decreased content added, example, MOE 3176 1057 N mm-2, MOR 41.2 11.5 IB 0.78 0.27 mm-2. However, results thickness swelling water absorption indicate that do not exhibit substantial absorb water, retaining dimensional stability boards. positively increase 15.1 7.38% after 24 h soaking. panel's characteristics improved increasing concentration, according data. profiles all variations under consideration had somewhat U-shaped appearance; however, version 50% flatter form no obvious compaction panel surface. Therefore, certain mechanical physical manufactured panels enhanced well-chosen addition.

Language: Английский

Citations

0