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Synthesis and properties of SWCNT- and MWCNT-reinforced PIR and PUR foam composites

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Title Synthesis and properties of SWCNT- and MWCNT-reinforced PIR and PUR foam composites
 
Creator Vlasov, Ruslan R.
Ryabova, Daria I.
Zeynalova, Sakina Z.
Sokolov, Dmitry V.
Ryabov, Sergei A.
 
Subject Carbon nanotubes
Cell morphology
Compressive strength
Polyurethane
Polyurethane-polyisocyanurate foam
Thermal conductivity
 
Description 125-134
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.
 
Date 2024-01-12T12:11:53Z
2024-01-12T12:11:53Z
2024-01
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/63199
https://doi.org/10.56042/ijct.v31i1.7608
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.31(1) [January 2024]