西南石油大学学报(自然科学版) ›› 2011, Vol. 33 ›› Issue (3): 159-164.

• 油气化学工程 • Previous Articles     Next Articles

Rheological Behaviors and Viscoelasticity of Phenolic Resin Gel

YU Hai-yang 1 ZHANG Jian 2 WANG Ye-fei 1 JI Wen-juan 1 WANG Suo-liang 1
  

  1. 1. School of Petroleum Engineering, China University of Petroleum（East China）, Qingdao, Shandong 266555, China;
    2. Research Centre, CNOOC, Dongcheng, Beijing 100027, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-06-20 Published:2011-06-20

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Abstract: Phenolic resin gel which comprises hydrophobically associating polymer AP-P4 and crosslinker of phenolic resin YG103 is studied in its rheological behaviors and viscoelasticity characteristics, and the viscoelasticities between the phenolic resin gel and hydrophobically associating polymer are compared. The experiments indicated that the gelation procedure of the phenolic resin gel could be divided into three periods: the slowing induction period, the increasing gelation stage, and the stabilization stage. The shear stress of phenolic resin gel depend on

stress time and is hysteretic, and its strain could be better restored under the external force in a certain time. The phenolic resin gel has not only broader linear viscoelasticity area but also higher storage modulus and loss modulus than polymer solution. The storage modulus of the gel is higher than the loss modulus under low frequency, and the storage modulus and loss modulus could both increase in circumstance of increasing frequency or increasing the percentage of corsslinker and polymer. But the storage modulus and loss modulus of gel system has a process of decreasing—increasing—decreasing with salinity increasing.

Key words:

hydrophobically associating polyme, phenolic resin, gel, rheological behaviors, viscoelasticity, influence factors

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