Super oil-absorbing resin is a new type of environmentally friendly low-crosslinking polymer. It has the advantages of high oil absorption rate, strong oil retention capacity and convenient post-processing. It is an oil-absorbing material with great development potential. Styrene-methyl methacrylate-butyl acrylate binary copolymer oil-absorbing resin can form a better three-dimensional network and improve the performance after oil absorption.

  With the increase of the amount of CFS-850, the oil absorption first increased and then decreased. This is due to the addition of CFS-850, which increases the branched structure of the resin. The branched structure has good affinity with oil products, and the voids in the interior of the resin also increase, indicating that the pores increase and the oil absorption rate of the resin increases.

  When the amount of silane coupling agent CFS-850 is too much, the methoxy group is hydrolyzed into a polar group - hydroxyl group, which shows polarity and reduces the affinity with oil molecules, and the oil absorption rate of the resin decreases. When the amount of coupling agent is 1.0% of the total monomer mass, the comprehensive oil absorption rate of the resin is the best.

  The copolymerization between monomers and between monomers and CFS-850 is very good, and there is no microphase separation; compared with the resin without the addition of silane coupling agent CFS-850, the initial decomposition temperature and maximum The decomposition rate temperature is obviously increased, the decomposition rate is decreased, and the thermal stability of the resin is improved.

  Compared with the resin without CFS-850, the oil absorption rate of the resin with CFS-850 is decreased, which is related to the hydrolysis of the methoxy group in the previous analysis. The resin added with CFS-850 not only has a good absorption rate of oil, but also increases the thermal stability of the resin.

  Since the branched chain on the coupling agent CFS-850 has a steric hindrance effect during the copolymerization process, the monomers are selectively polymerized, and the curling of the macromolecular chain after polymerization is also affected by the branching effect, resulting in the existence of pore structure in the copolymer, molecular chain The larger the oil, the better the penetration of the resin, the higher the oil absorption rate.