Structural Characterization and Adsorption Behavior of Superplasticizer Prepared by Modification of Bamboo Pulp Black Liquor

Deng, Yonghong; Guo, Yunqing; Qian, Yong; Li, Hongming; Qiu, Xueqing

doi:10.3724/sp.j.1105.2012.11376

Cited by 2 publications

(4 citation statements)

References 7 publications

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“…GCL1-JB is one kind of polyelectrolyte with a large amount of anion groups. GCL1-JB can form a self-assembled film with PDAC via electrostatic interaction . However, the self-assembled films of GCL1-JB with P4VP based on hydrogen bonding are quite different from that of GCL1-JB/PDAC self-assembled films.…”

Section: Resultsmentioning

confidence: 96%

“…GCL1-JB can form a self-assembled film with PDAC via electrostatic interaction. 23 However, the selfassembled films of GCL1-JB with P4VP based on hydrogen bonding are quite different from that of GCL1-JB/PDAC selfassembled films. To understand the different adsorption characteristics of GCL1-JB driven by hydrogen bonding and electrostatic interaction, the adsorption amount, adsorption kinetics and adsorption morphologies were investigated.…”

Section: ■ Results and Discussionmentioning

confidence: 97%

“…The band at 1507 cm –1 was signed to the aromatic ring vibration. The bands at 1646 and 1185 cm –1 were characteristic of the stretching vibration of carbonyl groups (CO) and sulfonic groups (S–O), respectively . After the GCL1-JB and the P4VP mixed uniformly with the mass ratio of 1:1, the curve of GCL1-JB/P4VP complex appeared a new band at 2169 cm –1 contrasting to the separate polymers, which is assignable to vibration of −OH groups .…”

Section: Resultsmentioning

confidence: 99%

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Layer-by-Layer Self-Assembled Films of a Lignin-based Polymer through Hydrogen Bonding

Deng

Wang

Guo

et al. 2015

ACS Sustainable Chem. Eng.

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A new type of layer-by-layer (LBL) self-assembled films of a lignin-based polymer (GCL1-JB) with Poly(4-vinylpyridine) (P4VP) has been obtained via hydrogen bonding interaction. Fourier-transform infrared spectroscopy results confirmed a strong hydrogen bonding between GCL1-JB and P4VP. And the hydrodynamic radius of the GCL1-JB/P4VP mixture was larger than individual polymer due to the hydrogen bonding. The adsorption characteristics of GCL1-JB self-assembled films based on hydrogen bonding or electrostatic interaction were investigated by UV−vis spectrophotometry and atomic force microscopy, respectively. Compared to the GCL1-JB self-assembled films based on electrostatic interaction, that based on hydrogen bonding has a larger adsorbed amount, a faster adsorption transfer rate from dipping solution to the substrate surface and a larger surface roughness. This study gives significant information to understand the adsorption characteristics of lignin-based polymers on the solid surface via different driving forces.

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Section: Resultsmentioning

confidence: 96%

Section: ■ Results and Discussionmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Layer-by-Layer Self-Assembled Films of a Lignin-based Polymer through Hydrogen Bonding

Deng

Wang

Guo

et al. 2015

ACS Sustainable Chem. Eng.

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“…To achieve excellent performance, the admixture agent should have a strong surface activity and a high molecular weight . In this study, the effects of sodium sulfite (S), formaldehyde (F) and condensation time on product and mortar performance were investigated.…”

Section: Resultsmentioning

confidence: 99%

Investigation of grafted sulfonated black liquor as wet‐ready mortar admixture

Zheng

Chen

2016

Env Prog and Sustain Energy

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In order to develop a new mortar admixture and effectively apply black liquor, effect of grafted sulfonated black liquor on wet‐ready mortar property was investigated. The results showed that when the molar ratio of sodium sulfite/formaldehyde/acetone was 0.5:2:1, the polycondensation reaction time was 2.5 h at 95°C, the sulfonation degree of the product was 2.93 mmol·g−1 and the average molecular weight (Mw) was 13,200. When the dosage of modified product was 1.5 wt% in the mortar, the consistency loss of the mortar was 33.7% after 4h, the water retention was 90.1%, the setting time was 16.2h, and the bond strength of hardened mortar was 0.41MPa at 14d and 0.69MPa at 28d (the initial consistency was 90mm ± 5mm). This study has certain reference value for the development of wet‐ready mortar admixture, also has great significance in the environmental protection and application of renewable resource. © 2016 American Institute of Chemical Engineers Environ Prog, 35: 1395–1399, 2016

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Structural Characterization and Adsorption Behavior of Superplasticizer Prepared by Modification of Bamboo Pulp Black Liquor

Cited by 2 publications

References 7 publications

Layer-by-Layer Self-Assembled Films of a Lignin-based Polymer through Hydrogen Bonding

Layer-by-Layer Self-Assembled Films of a Lignin-based Polymer through Hydrogen Bonding

Investigation of grafted sulfonated black liquor as wet‐ready mortar admixture

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