Research On Preparation And Application Of Cellulose-based High Oil Absorption Resin

High oil-absorbing resin can be used to prevent oil pollutant, the cellulose-based high oil-absorbing resin has a quick oil absorption velocity, big oil absorption quantity, low cost etc. Cotton fiber is basic material, it takes BMA as the monomer and H₂O₂-FeSO₄ as the initiator, PVA as dispersant. It uses suspension polymerization to prepare the cellulose-based oil absorption resin after NaOH and CS₂ preprocessing. It studies the grafting craft with uniform design and the orthogonal design method. It alse determines the grafting effect influence tendency of various factors. The influence size order of the time, PVA, BMA, FeSO4, the temperature and H2O2 are minish successively.The best adsorption condition of oil absorption resin adsorbing to oil floating water surface is that graft rate for the oil-absorbing resin is equal to 147% , pH is equal to 11, water temperature is equal to 60℃, stirring speed is equal to 200 r/min, adsorption time is equal to 1 5min.When floating oil quality is less than oil absorption resin saturated oil absorption quantity, adsorption efficiency is higher, the highest is 95%.The adsorption behavior of oil absorption fiber for trace oil fits pseudo second order kinetic model, the isothermal adsorption model of Langmuir and Freundlich. The best adsorption conditions is that grafted rate the oil-absorbing resin is 30%, pH is equal to 5, water temperature is equal to 25℃, stirring speed is equal to 500r/min, adsorption time is equal to 1 hour.When oil fume is less than oil absorption resin saturated oil absorption quantity, its adsorption efficiency is higher. The adsorption efficiency of diesel fume reaches 98% and soybean oil fume reaches 92%, They are higher than the cotton fiber adsorption efficiency.Cotton fiber Oil absorbent resin has a very good adsorption effect on Soybean oil and xylene, which has the characteristics of resistant high temperature, in the meantime, it could be reused by petroleum ether regenerating.Cotton fiber grafting the BMA process is also applicable to other close oil monomer, the test finds that Cotton fiber could graft St and MMA, and the Grafted product has a higher oil absorption ability; Other fiber also can graft the BMA, oil absorption ability of Grafted product is good as well as Cotton fiber.