引用本文:
刘红宇, 刘翠云, 吕本莲, 罗洁, 宋文生, 张玉清. 钠基蒙脱土交联增稠剂的合成及性能[J]. 应用化学,
2008, 25(9): 1061-1064.
Citation: LIU Hong-Yu, LIU Cui-Yun, LV Ben-Lian, LUO Jie, SONG Wen-Sheng, ZHANG Yu-Qing. Preparation and Properties of Na-Montmorillonite Cross-linked Thickeners[J]. Chinese Journal of Applied Chemistry, 2008, 25(9): 1061-1064.
Citation: LIU Hong-Yu, LIU Cui-Yun, LV Ben-Lian, LUO Jie, SONG Wen-Sheng, ZHANG Yu-Qing. Preparation and Properties of Na-Montmorillonite Cross-linked Thickeners[J]. Chinese Journal of Applied Chemistry, 2008, 25(9): 1061-1064.
钠基蒙脱土交联增稠剂的合成及性能
摘要:
采用钠基蒙脱土为交联剂合成了新型的具有较高抗电解质性能的增稠剂。聚合物链一端或两端接枝于蒙脱土片层上。测试了该复合增稠剂的增稠性能和抗NaCl、NaHCO3的性能。结果表明,钠基蒙脱土交联增稠剂具有优异的抗电解质性能。Bis交联增稠剂5%糊料加入5 mL 2 mol/L NaCl溶液后,黏度由118 Pa·s迅速降低为6 Pa·s,加入8 mL 2 mol/L NaCl溶液后,旋转黏度基本为零;而钠基蒙脱土交联增稠剂5%糊料加入5 mL 2 mol/L的NaCl溶液前后,旋转黏度分别为63和24 Pa·s,加入8 mL 2 mol/L NaCl溶液后,旋转黏度仍保持16.5 Pa·s。
English
Preparation and Properties of Na-Montmorillonite Cross-linked Thickeners
Abstract:
A kind of new thickeners with enhanced resistance ability to electrolyte was prepared.Exfoliated inorganic montmorillonite was used as an effective multifunctional cross-linker.In these composites polymer chains were grafted on the clay surface at one or both ends.The rheology of these thickeners in pure water,NaCl or NaHCO3 solution has been studied.Experimental results reveal that these composites show enhanced resistance ability to electrolyte.The viscosity of 5% bis-cross-linked thickener decreased from 118 Pa·s to 6 Pa·s in the presence of 5 mL of 2 mol/L NaCl solution.The viscosity of montmorillonite cross-linked thickener decreased from 63 Pa·s to 24 Pa·s in the presence of 5 mL of 2 mol/L NaCl solution.When the amount of NaCl solution was 8 mL,the viscosity still maintained 16.5 Pa·s.
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Key words:
- thickener
- / montmorillonite
- / acrylamide
- / inverse suspension polymerization
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