Abstract
Effects of ultrasonic treatment on water-retention value of straw pulp fibers were discussed and the ultrasonic treatment conditions were optimized. The best conditions of ultrasonic treatment as follows: ultrasonic power is 400W, processing time is 90min and temperature is 40°C. SEM shows that a large number of magnetic particles were left inside the pulp fiber cells. Automated Surface Area & Pore Size Analyzer shows a good superparamagnetic behavior.
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