Oil-absorbency Material Preparation By Grafted Method Used Vegetable Fiber

In this paper, a new method to improve fiber absorbency of oil through chemical treatement, which is easy to degrade and very friendly to enviroment. The methods referred to this paper can inprove oil absorbency of many different fibers, which is more than 20 times to unmodified fiber and improve their oil retain capacity to about 6 times to unmodified fiber. Main research content and results are as follows:1. The best grafted chemical condition of absorbency fiber are: MMA: base material=1:1.5, original liquid ratio is 1:80, temperature is 30℃, KMnO₄/H₂SO₄ is 0.07mmol/gbase material; washing it after alkaline treatment, modify pH to 8～8.5 and temperature to 40℃, add 1% CTAB (to base material), crosslinking agent is 0.5%. The oil absorbency ratio of CTMP products is 23.9, water absorbency ratio is 15.1.2. The best condition of oil retaining material is: MMA: base material=1:1, original liquid ratio is 1:80, temperature is 30℃, KMnO₄/H₂SO₄ is 0.07mmol/gbase material; washing it after alkaline treatment, modify pH to 8～8.5 and tem- perature to 40℃, add 2% CTAB (to base material), crosslinking agent is 0.5%. The oil absorbency ratio of CTMP products is 6.3, water absorbency ratio is 3.1.3. Through four factors three level cross methods, the dosage of MMA is the main factor to mixed fibre product. Thebest condition is: MMA: base material=1:1, original liquid ratio is 1:80, temperature is 30℃, KMnO₄H₂SO₄ is 0.07mmol/gbase material; CTAB:base material=1:1. The oil absorbency ratio is 3, oil retaining ratio is 4.4. To different material, CTMP is the best, oil absorbency ratio is up to 23.9, fuzz fibres is 23, and KP is the badest.