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| Titel: |
A Method for the Estimation of the Efficiency of Antioxidants in Secondary Polyolefines Stabilized According to the Defects Dilution Process |
| Auteur: |
Staicu, Doina Stoica, Stela Ciupitoiu, Alexandra Topciu, Elena |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 14 (1990) nr. 1-2 pagina's 53-65 |
| Jaar: |
1990-09-01 |
| Inhoud: |
The defects dilution principle was checked for secondary polypropylene from used electric accumulators. According to this principle, after a determined number of reprocessings, through modification with the same quantity of raw material, the active species resulted from ageing, uniformly distributed in the polymer mass, occur in such a quantity which determines a constant level of thermooxidative stability. The estimation of fenolic antioxidants efficiency from the difference between the melting point of regenerated polymer and his oxidation temperature, determined by using differential thermal analysis is an adequate method for secondary polypropylene from used electric accumulators, stabilized according to the defects dilution process. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 1 van 14 gevonden artikelen
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