Influence of low-frequency acoustic treatment of oligomer based on polyoxytetramethylenglikol and 2,4-toluene diisocyanate(SKU-PFL-100) at the frequency ranging from 0.01 to 10kHz. "Resonant" frequency of treatment was found to be 4.6 kHz. It has been noted that low-frequency acoustic treatment at "resonant" frequency during 30 minutes significanly increases viscosity of the oligomer. Thereat increase of strength and modulus at 100% elongation of polyurethane compound produced based on acoustically treated urethane oligomer occurs.
полиуретановый олигомер, низкочастотная акустическая обработка, polyurethane oligomer, low-frequency acoustic treatment
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