Abstract:

For more reasonable recycling of waste polypropylene fibers, the waste polypropylene fibers were modified and the oil adsorption property of modified polypropylene fibers was researched. The morphology and crystallinity of fibers were tested by scanning electron microscope and X-ray diffraction.The contact angle and oil adsorption value of fiber before and after modification were separately measured and compared. The effect of temperature, time, oil content of wastewater and times of repetitious oil adsorption on oil adsorption value were analyzed. The experimental results indicated that, the oil adsorption propeety of modified polypropylene fiber is good. The oil adsorption value of modified polypropylene fiber is about 3 time of unmodified polypropylene fiber. The oil adsorption value of modified polypropylene fiber is the largest when the temperature of wastewater is 20 ℃,adsorption time is 10 minutes, and oil content of wastewater is 200ml/L.The repetitious oil adsorption property of the modified polypropylene fiber is good.

Key words: polypropylene, modification, oil adsorption, waste textile