A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Foamed Wood-Polymer Composites Based on Polyvinyl Chloride
https://orcid.org/http://orcid.org/0000-0002-8552-5855
https://orcid.org/http://orcid.org/0000-0001-6547-7203
The work investigates the possibility of obtaining foamed wood-polymer composites based on polyvinyl chloride (PVC), since they have higher physical and mechanical properties, fire resistance compared to other thermoplastic polymers (PE, PP, PS). Nevertheless, they have disadvantages, one of which is a high density (1300–1400 kg/m3) when compared to the products from natural wood (500–600 kg/m3) and wood-polymer composites based on polyolefins, PS (900–1000 kg/m3). The influence of various chemical blowing agents (azodicarbonamide, sodium bicarbonate) and nucleating agents on physical and mechanical properties of the received materials was studied. Azodicarbonamide in comparison to sodium bicarbonate is more effective as a blowing agent since it leads to the formation of uniform close-meshed structure. It has been found that the introduction of a small amount of wood-filler into the polymer melt prevents a decrease in the density of specimens even in the presence of gassing nucleators, which presumably occurs due to a decrease in the compliance of melt with the blowing gases released. The authors achieved a decrease in the density of composites by 10–15% depending on the degree of filling, without a significant deterioration in strength properties.
Foamed Wood-Polymer Composites Based on Polyvinyl Chloride
https://orcid.org/http://orcid.org/0000-0002-8552-5855
https://orcid.org/http://orcid.org/0000-0001-6547-7203
The work investigates the possibility of obtaining foamed wood-polymer composites based on polyvinyl chloride (PVC), since they have higher physical and mechanical properties, fire resistance compared to other thermoplastic polymers (PE, PP, PS). Nevertheless, they have disadvantages, one of which is a high density (1300–1400 kg/m3) when compared to the products from natural wood (500–600 kg/m3) and wood-polymer composites based on polyolefins, PS (900–1000 kg/m3). The influence of various chemical blowing agents (azodicarbonamide, sodium bicarbonate) and nucleating agents on physical and mechanical properties of the received materials was studied. Azodicarbonamide in comparison to sodium bicarbonate is more effective as a blowing agent since it leads to the formation of uniform close-meshed structure. It has been found that the introduction of a small amount of wood-filler into the polymer melt prevents a decrease in the density of specimens even in the presence of gassing nucleators, which presumably occurs due to a decrease in the compliance of melt with the blowing gases released. The authors achieved a decrease in the density of composites by 10–15% depending on the degree of filling, without a significant deterioration in strength properties.
Foamed Wood-Polymer Composites Based on Polyvinyl Chloride
https://orcid.org/http://orcid.org/0000-0002-8552-5855
https://orcid.org/http://orcid.org/0000-0001-6547-7203
The work investigates the possibility of obtaining foamed wood-polymer composites based on polyvinyl chloride (PVC), since they have higher physical and mechanical properties, fire resistance compared to other thermoplastic polymers (PE, PP, PS). Nevertheless, they have disadvantages, one of which is a high density (1300–1400 kg/m3) when compared to the products from natural wood (500–600 kg/m3) and wood-polymer composites based on polyolefins, PS (900–1000 kg/m3). The influence of various chemical blowing agents (azodicarbonamide, sodium bicarbonate) and nucleating agents on physical and mechanical properties of the received materials was studied. Azodicarbonamide in comparison to sodium bicarbonate is more effective as a blowing agent since it leads to the formation of uniform close-meshed structure. It has been found that the introduction of a small amount of wood-filler into the polymer melt prevents a decrease in the density of specimens even in the presence of gassing nucleators, which presumably occurs due to a decrease in the compliance of melt with the blowing gases released. The authors achieved a decrease in the density of composites by 10–15% depending on the degree of filling, without a significant deterioration in strength properties.
Foamed Wood-Polymer Composites Based on Polyvinyl Chloride
Lecture Notes in Civil Engineering
Vatin, Nikolai (editor) / Islamov, Anvar (author) / Fakhrutdinova, Venera (author)
International Scientific Conference on Socio-Technical Construction and Civil Engineering ; 2021 ; Kazan, Russia
2021-06-29
8 pages
Article/Chapter (Book)
Electronic Resource
English
Foamed Wood-Polymer Composites Based on Polyvinyl Chloride
| TIBKAT | 2021
FORMING MOLD FOR MAKING POLYVINYL CHLORIDE FOAMED WOOD-LIKE SLATS
| European Patent Office | 2021
Glass/Polyvinyl Chloride Composites
| British Library Online Contents | 2010