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| Titel: |
The Aging of Modified Glass Fiber-Reinforced Polypropylene in Air and in Antifreeze |
| Auteur: |
Novotortzeva, T. N. Kulachinsckaya, O. B. Andreeva, M. B. Kalugina, E. V. Aizinson, I. L. Lunin, A. S. Tochin, V. A. Urman, Ya. G. Kalinina, I. G. Gumargalieva, K. Z. Zaikov, G. E. |
| Verschenen in: |
International journal of polymeric materials |
| Paginering: | Jaargang 46 (2000) nr. 3-4 pagina's 617-627 |
| Jaar: |
2000-07-01 |
| Inhoud: |
Comparative behavior of modified and unmodified glass-reinforced polypropylene during aging in air (135°C) and in antifreeze (115°C) with the exposure up to 80 days was investigated. Mechanical properties (tensile strength, flexural strength, impact strength) and melt flow were measured for original and aged samples. According to Hg-porosimetry data, unmodified composite has a loose macroporous structure. Aging leads to progressive phase separation. On the contrary, original modified composite is characterized by a dense structure; aging leads to the structure compacting, pore size decreases. Unmodified composite displays a drastic decrease of mechanical properties after 10 days of heating. Modified thermostabilized glass-filled polypropylene holds its thermooxidative stability during aging in air and in antifreeze, its molecular weight characteristics remain practically constant. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 24 van 33 gevonden artikelen
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