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| Formulation | ||||||||
| 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |
| Feathers | 75 | 70 | 65 | 60 | 62.5 | 55 | 65 | 64.75 | 65 |
| Plasticizers |
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| Ethanolamine | 20 | 20 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Other additives |
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| Citric acid |
|
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| 5 | 10 |
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| Formamide | 5 | 10 | 5 | 10 |
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| Sodium alginate |
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| 5 | 5 |
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| Glyoxal |
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| 5 |
| CaCl2 |
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| 0.25 |
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| NaPO2H2∙H2O |
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| 2.5 | 5 |
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