| Autor: |
Kolosov, O. Ye., Sivetskyy, V. I., Sakharov, O. S., Sidorov, D. E. |
| Předmět: |
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| Zdroj: |
Naukovi visti NTUU - KPI; 2012, Vol. 83 Issue 3, p110-114, 5p |
| Abstrakt: |
Relying on the analysis of durability and operating characteristics of boundary hardened unfilled epoxy polymers obtained during ultrasonic influence with different frequencies at pressure variation on liquid epoxy compositions and their further hardening, we prove the corresponding physical model. We propose the effective parameters of the combined ultrasonic influence (frequency, amplitude, intensity, pressure) by example of shaping epoxy polymers with the form memory effect. By analyzing features of ultrasonic modification of epoxy oligomers and liquid epoxy compositions used while shaping the reinforced polymeric composition materials, we prove the future prospects of this modification both in low-frequency and in middle frequency ultrasonic ranges. In addition, we reveal that using the surplus pressure is the important factor of increasing intensity and time reduction of the combined ultra- sonic treatment. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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