study on properties of crosslinked polyacrylamide in britain

study on properties of crosslinked polyacrylamide in britain
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  • How is cross-linked polyacrylamide gel prepared?
  • Preparation of polyacrylamide gel Cross-linked polyacrylamide gel was prepared by free radical polymerization of AM and MBA in aqueous solution with encapsulated initiator. 7% (w/v) AM, 0.5% (w/v) MBA and 5% (w/v) NaCl were dissolved in 300 mL distilled water at room temperature for 30 min until totally dissolved.
  • What is the temperature of cross-linked polyacrylamide gel?
  • Deng ( Deng et al., 2018) experimentally studied cross-linked polyacrylamide gel using the microencapsulated initiator to control the gelation time, yet temperature of this gel is limited to 90 °C for application.
  • Can colophony encapsulate a cross-linked polyacrylamide gel?
  • When the gelation time was less than 2 h, cross-linked polyacrylamide gel cannot effectively plug slot. However, with the further increase in gelation time, gel loss obviously decreased. These results verified that initiator was encapsulated by colophony successfully.
  • What is a cross-linked polymer gel system?
  • Cross-linked polymer gel system consisted of deionize water, partial hydrolysis polyacrylamide (PHPA), encapsulated initiator, crosslinking agent and sodium chloride. The gelation time was extended using the thermo-plasticity of colophony with the melting rang of 110–135 °C.