| Formulation | |||||||||
19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
Feathers | 65 | 60 | 62.5 | 64.9 | 64.75 | 62.5 | 62.5 | 60 | 57.5 | 62.5 |
Plasticizers |
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Ethanolamine |
|
|
| 30 | 30 | 30 | 30 | 30 | 30 | 30 |
Maleic acid | 30 | 30 | 30 |
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Other additives |
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Citric acid |
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| 5 |
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Formamide | 5 | 10 |
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Sodium alginate |
|
|
| 5 | 5 | 5 | 5 | 10 | 10 | 10 |
CaCl2 |
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| 0.1 |
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Fe(ClO4)3∙9H2O |
|
|
|
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| 2.5 |
|
|
|
MgCl2∙6H2O |
|
|
|
| 0.25 | 2.5 |
|
| 2.5 | 5 |
NaPO2H2∙H2O |
|
| 2.5 |
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