Manufacture and Properties Analysis of Water Absorption Materials for Water Swelling Packer
The water swelling packer expands autonomously under the oil or water conditions to achieve the sealing formation.The packer rubber is the critical component of the water swelling packer.The packing effect of packer is dependent on the property of water swelling rubber.In order to raise its resistance to salt,the superabsorbent resin was prepared with inorganic mineral and acrylic organic monomer.This study found that the type and the amount of inorganic mineral and initiator dosage,crosslinking agent dosage,monomer neutralization degree and polymerization temperature can affect the water absorption capacity of the the resin.The properties of the composite superabsorbent resin were optimized through a lot of experiments,and the best synthesis technology was obtained as follows:the initiator was(NH4)2S2O8/Na2SO3,neutralization was 80％,reaction temperature was 70 ℃,reaction time was 4 h;usage was as follows:kaolin 0.1wt％,crosslinking agent NMBA 0.03wt％,initiator agent Na2SO3 0.1wt％,(NH4)2S2O8 0.2wt％.The results showed that the synthetic composite superabsorbent resin sample absorbs water and absorbs 0.9wt％of the saline water volume was 550 g/g and 53 g/g,respectively.
万方数据
维普
