Physicochemical and Rheological Properties of Novel Magnesium Salt-Polyacrylamide Composite Polymers

Khai Ern Lee, Imran Khan, Norhashimah Morad*, Tjoon Tow Teng, Beng Teik Poh

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةمراجعة النظراء

14 اقتباسات (Scopus)

ملخص

Two series of novel inorganic-organic composite polymers have been prepared through physical blending of magnesium chloride and magnesium hydroxide respectively with polyacrylamide aqueous solution. The physicochemical properties of the magnesium salt-polyacrylamide composite polymers were tuned by varying the ratio between the magnesium salt (e.g., magnesium chloride and magnesium hydroxide) and polyacrylamide. Characterizations of magnesium salt-polyacrylamide composite polymers were carried out via FTIR and TEM. Parameters such as solution conductivity and viscosity were also taken into account to characterize the physicochemical properties of the composite polymer aqueous solutions. Magnesium chloride-polyacrylamide (MCPAM) composite polymer aqueous solutions have a higher conductivity compared to magnesium hydroxide-polyacrylamide (MHPAM) composite polymer aqueous solutions. The viscosities of the MHPAM composite polymer aqueous solutions were found higher than MCPAM composite polymer aqueous solutions. The rheological properties of the composite polymer aqueous solutions were investigated using steady-state flow and oscillatory frequency sweep within the linear viscoelastic region. Shear-thinning effect was observed for both composite polymer systems when the shear rate increases. In oscillatory frequency sweep tests, both composite polymer systems show that the viscoelastic behaviors depend strongly on the magnesium salt concentrations. Viscous behavior was found to be dominant for both composite polymer systems.

اللغة الأصليةEnglish
الصفحات (من إلى)1284-1291
عدد الصفحات8
دوريةJournal of Dispersion Science and Technology
مستوى الصوت33
رقم الإصدار9
المعرِّفات الرقمية للأشياء
حالة النشرPublished - سبتمبر 2012
منشور خارجيًانعم

ASJC Scopus subject areas

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