Table 1.
The list of materials used in the presented work.
| Material | Producer | Properties/Additional Information |
|---|---|---|
| GTR modification | ||
| Ground tire rubber | Recykl S.A. (Śrem, Poland) | Average particle size—0.6 mm |
| Fresh rapeseed oil | Zakłady Tłuszczowe Kruszwica S.A. (Kruszwica, Poland) | Fresh, unmodified oil |
| Waste rapeseed oil | Local restaurant (Gdańsk, Poland) | Post-consumer oil obtained after frying |
| Polyurethane foams preparation | ||
| Rokopol®F3000 | PCC Group (Brzeg Dolny, Poland) | Polyether polyol, propoxylated glycerol, hydroxyl value—53–59 mg KOH/g |
| Rokopol®V700 | PCC Group (Brzeg Dolny, Poland) | Polyether polyol, propoxylated glycerol, hydroxyl value—225–250 mg KOH/g |
| Glycerol | Sigma Aldrich (Poznań, Poland) | Hydroxyl value—1800 mg KOH/g |
| SPECFLEX NF 434 | M. B. Market Ltd. (Baniocha, Poland) | Polymeric methylenediphenyl-4,4′-diisocyanate, free isocyanate content—29.5% |
| PC CAT® TKA30 | Performance Chemicals (Belvedere, UK) | Potassium acetate catalyst |
| Dabco33LV | Air Products (Allentown, USA) | Catalyst, 3 wt% solution of 1,4-diazabicyclo[2.2.2]octane in dipropylene glycol |
| Dibutyltin dilaurate | Sigma Aldrich (Poznań, Poland) | Organic tin catalyst |
| Distilled water | - | Chemical blowing agent |
| Determination of GTR hydroxyl value | ||
| Acetone | Sigma Aldrich (Poznań, Poland) | Solvent |
| Dibutylamine | Sigma Aldrich (Poznań, Poland) | Analyte solution |
| Chlorobenzene | Sigma Aldrich (Poznań, Poland) | Solvent |
| Hydrochloric acid | Sigma Aldrich (Poznań, Poland) | Titrant |
| Toluene diisocyanate | Sigma Aldrich (Poznań, Poland) | Free isocyanate content—42% |
| 3′,3″,5′,5″-Tetrabromophenol-sulfonphthalein | Sigma Aldrich (Poznań, Poland) | Indicator |