Study On Preparation And Properties Of Modified Isobutylene Isoprene Rubber And Styrene Butadiene Rubber As Absorption Material

With the increasing energy consumed, the world is confronted with awide variety of impacts from petroleum products and their derivatives.Wastes and derivatives resulting from oil exploitation and oil producttransportation have caused serious damage to marine and freshwaterecological environment. To solve these problems, the effective way is toprepare a selective and efficient material that divide oil spill from the water.In this paper, isobutylene isoprene rubber and styrene butadiene rubberwere modified by gel method. Then the adsorption behavior of sorbentmaterials for oil removal in oil/water medium was investigated. Some factors,such as reaction temperature, reaction time, adsorption time, adsorptiontemperature and reusability were discussed. The physic-chemical structurewas performed by Scanning Electron Microscopy. The following conclusionswere obtained.(1) The modified oil absorption materials have high oil absorption rate.At-2℃saturated adsorption quantity of the modified butyl rubber andstyrene butadiene rubber were13.8g/g,8.9g/g,5.0g/g,6.5g/g,10.9g/g,14.3g/g and12.8g/g,9.1g/g,5.9g/g,7.4g/g,10.1g/g,13.3g/g for kerosene oil,engine oil, rapeseed oil, drainage oil, lubricating oil and toluene. The preparedmodified rubbers showed that the optimal conditions were-17℃,16h and2.5mol/L of rubber concentration.(2) The absorption rate of oil absorption materials tend to be smooth withtime increasing, and the maximum oil absorbency increased with increasingadsorption temperature. Compared with the commercial PP adsorbent, themodified oil absorbing material that can be reused more than30times hasmore excellent performance.(3) SEM analysis showed that the modified oil absorption material forms a network structure, and the network structures of modified material under thedifferent temperature have different pore sizes. It also showed that thedifferent network structure is formed. The size of porosity is estimated as0.4~8.3mL/g by the calculation formula of porosity.(4) The results showed that the process of adsorption was fitted to thePseudo-second-order model. And the process of adsorption was anon-spontaneous process, and the Langmuir model was utilized to fit theprocess of adsorption in all cases.