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Polymer Sciences | ISSN: 2471-9935
October 02-03, 2017 Chicago, USA
3
rd
International Conference on
Polymer Science and Engineering
Flexible polyurethane blown with nanoclay as footwear component
Moumita Mukherjee
1
, Saraswathy Gnanasundarama
1
, Sujata Mandalb
2
and
Bhabendra Nath Dasa
1
1
Shoe and Product Design Center, CSIR-Central Leather Research Institute, India
2
Inorganic and Physical Chemistry, CSIR-Central Leather Research Institute, India
R
ecently, PU foams composite of solid-gas material intrigued significant interest due to its wide applications. Conventionally
polyurethane foam is prepared by adding two types of blowing agent, physical blowing agent (low boiling point solvent) and
chemical blowing agent (water). In the present work, for the first time a series of flexible polyurethanes are developed by addition
increasing amount of nanoclay (have been developed in our lab) 0.5-3% as a chemical blowing agent. The inter layer –OH group
of the developed filler react with the –NCO terminated pre-polymer of PU to generate flexible polyurethane foam. The developed
polyurethane contained exfoliated nanoclay structure cross linked with the native PU which is further confirmed by FESEM analysis.
As a result it shows that the addition of nanoclay has been increased the flexibility. The physical, morphological and thermal properties
of the developed PU foams have been studied to find suitability in shoe sole. The polyurethane foam prepared using the developed
compositions are flexible and light-weight while maintaining other physical properties like hardness, density, abrasion resistance and
tensile strength in advisable range for shoe sole application.
moumita.bubu@gmail.comPolym Sci, 3:3
DOI: 10.4172/2471-9935-C1-003