Preparation of Polyacrylamide Konjac Gum Double Network Gel Liquid Bridge Plug

Ye, Zhongbin; Liu, Tianyu; Xiao, Bao; Xian, Xiaokang; Lai, Nanjun

doi:10.1007/s10553-024-01662-5

Chem Technol Fuels Oils

2024

DOI: 10.1007/s10553-024-01662-5

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Preparation of Polyacrylamide Konjac Gum Double Network Gel Liquid Bridge Plug

Zhongbin Ye,

Tianyu Liu,

Bao Xiao

et al.

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Preparation and Properties of Composite Double-Network Gel for Inhibiting Coal Spontaneous Combustion

Wang,

Zhang,

et al. 2024

Molecules

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In order to improve the inhibition effect of gel on coal spontaneous combustion, a chitosan (CS)/polyacrylamide (PAM)/metal ion (Al3+) composite double-network gel was developed in this study. The optimum formula of the composite double-network gel was determined using orthogonal experimentation. The microstructure, water retention, compressibility, and anti-destruction properties of the composite double-network gel were analyzed. The inhibition effect of the composite double-network gel on coal spontaneous combustion was studied via infrared spectroscopy and a synchronous thermal analyzer from the micro and macro perspectives. The results show that the composite double-network gel has a denser interpenetrating double-network structure and a larger void ratio than the ordinary gel. The water retention rate was 55% after standing at 150 °C for 12 h. The deformation memory ratio of the composite double-network gel was 78%, which was 26.8% higher than that of the ordinary gel, and the compressive strength also increased by 59.96%. In addition, the critical temperature point and the maximum thermal weight-loss rate temperature point decreased by 7.01 °C and 39.62 °C, respectively, and the composite double-network gel effectively reduced active functional groups in the treated coal sample, such as hydroxyl and aliphatic hydrocarbons. In this study, a CS/PAM/Al3+ composite double-network gel was produced, which exhibited good gel performance and inhibition effects, with physical effects such as the covering, wetting, and cementation of coal.

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Preparation and Properties of Composite Double-Network Gel for Inhibiting Coal Spontaneous Combustion

Wang,

Zhang,

et al. 2024

Molecules

View full text Add to dashboard Cite

show abstract

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Preparation of Polyacrylamide Konjac Gum Double Network Gel Liquid Bridge Plug

Cited by 1 publication

References 14 publications

Preparation and Properties of Composite Double-Network Gel for Inhibiting Coal Spontaneous Combustion

Preparation and Properties of Composite Double-Network Gel for Inhibiting Coal Spontaneous Combustion

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