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| Content Provider | Springer Nature Link |
|---|---|
| Author | Kadam, Aparna S. Yemul, Omprakash S. Kusumkar, Vipul V. Pawar, Manisha S. Singh, Pratiksha C. |
| Copyright Year | 2015 |
| Abstract | A series of polyurethane rigid foams were prepared by one step process from cottonseed oil (Gossypium arboreum). The thermal properties of cottonseed oil-based foams were similar to those of petroleum resource-based foam. Cottonseed oil having an iodine value of 110/100 g I$_{2}$ was epoxidized using an industrial process followed by polyol preparation using bio-based chain extenders such as ethylene glycol (polyol1) and lactic acid (polyol2). The polyols were further formulated with diphenylmethane diisocyanate (MDI) at a constant NCO/OH ratio (1.2:1) using water and cyclopentane as blowing agents to obtain rigid polyurethane foams. The thermal behavior of polyurethane foams based on cottonseed oil as well as petroleum resource-based foams were studied by differential scanning calorimetry and thermogravimetric analysis. The physico-chemical properties of polyols, such as acid number, hydroxyl number, and Brookfield viscosity were determined. The chemical structures of polyols were elucidated by the Fourier transform infrared and nuclear magnetic resonance ($^{1}$H NMR) spectroscopies. Cottonseed oil-based polyurethane foams displayed thermal stability comparable to that of PPG foams. The research findings demonstrated that there is promise in using cottonseed oil-based polyols for the preparation of polyurethane foams by replacing the petroleum resource-based polyols. PU foam samples were tested for possible environmentally friendly plant grown substrate by seed germination method. |
| Starting Page | 59 |
| Ending Page | 68 |
| Page Count | 10 |
| File Format | |
| ISSN | 10261265 |
| Journal | Iranian Polymer Journal |
| Volume Number | 25 |
| Issue Number | 1 |
| e-ISSN | 17355265 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2015-12-08 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Polyurethane rigid foams Polymer Sciences Ethylene glycol Ceramics, Glass, Composites, Natural Methods Lactic acid Cottonseed oil Polyols |
| Content Type | Text |
| Resource Type | Article |
| Subject | Materials Chemistry Chemical Engineering Polymers and Plastics |
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