Indian Journal of Chemical Technology

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Synthesis and Properties of SWCNT- and MWCNT-Reinforced PIR and PUR Foam Composite


Affiliations
1 Lobachevsky State University, Faculty of Chemistry, Gagarina av. 23, 603098, Nizhny Novgorod, Russian Federation
2 Tre Tau Engineering srl, Pietro Colletta 85, 10153 Torino, Italy
3 Lobachevsky State University, Faculty of Chemistry, Gagarina av. 23, 603098, Nizhny Novgorod, India

Using small amounts of single-walled (SWCNTs) and multi-walled (MWCNTs) carbon nanotubes (CNT) (0.005 to 0.1%), rigid closed-cell composite polyurethane (PUR) and polyurethane-polyisocyanurate (PIR) foams have been synthesized. The effect of these additives on the morphological, physical-mechanical and thermophysical characteristics of the obtained materials is studied. Based on the data obtained, the addition of small amounts (up to 0.05%) of nanotubes into the foam composition leads to an increased degree of order in the cellular structure of PUR and PIR foams, improving their main thermophysical and physical-mechanical properties. The addition of CNTs leads to a slight decrease in the foams apparent density. In particular, the significant decrease in the average size and increase in cell density are observed. Such a change in the cellular structure leads to an increase in the polymer compressive strength and a decrease in its thermal conductivity. In the case of composite PIR foams,a decrease in damage by mass of the polymer during combustion is noticed.

Keywords

Carbon nanotubes, Cell morphology, Compressive strength, Polyurethane, Polyurethane-polyisocyanurate foam, Thermal conductivity
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  • Synthesis and Properties of SWCNT- and MWCNT-Reinforced PIR and PUR Foam Composite

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Authors

Ruslan R. Vlasov
Lobachevsky State University, Faculty of Chemistry, Gagarina av. 23, 603098, Nizhny Novgorod, Russian Federation
Daria I. Ryabova
Lobachevsky State University, Faculty of Chemistry, Gagarina av. 23, 603098, Nizhny Novgorod, Russian Federation
Sakina Z. Zeynalova
Tre Tau Engineering srl, Pietro Colletta 85, 10153 Torino, Italy
Dmitry V. Sokolov
Lobachevsky State University, Faculty of Chemistry, Gagarina av. 23, 603098, Nizhny Novgorod, India
Sergei A. Ryabov
Lobachevsky State University, Faculty of Chemistry, Gagarina av. 23, 603098, Nizhny Novgorod, India

Abstract


Using small amounts of single-walled (SWCNTs) and multi-walled (MWCNTs) carbon nanotubes (CNT) (0.005 to 0.1%), rigid closed-cell composite polyurethane (PUR) and polyurethane-polyisocyanurate (PIR) foams have been synthesized. The effect of these additives on the morphological, physical-mechanical and thermophysical characteristics of the obtained materials is studied. Based on the data obtained, the addition of small amounts (up to 0.05%) of nanotubes into the foam composition leads to an increased degree of order in the cellular structure of PUR and PIR foams, improving their main thermophysical and physical-mechanical properties. The addition of CNTs leads to a slight decrease in the foams apparent density. In particular, the significant decrease in the average size and increase in cell density are observed. Such a change in the cellular structure leads to an increase in the polymer compressive strength and a decrease in its thermal conductivity. In the case of composite PIR foams,a decrease in damage by mass of the polymer during combustion is noticed.

Keywords


Carbon nanotubes, Cell morphology, Compressive strength, Polyurethane, Polyurethane-polyisocyanurate foam, Thermal conductivity