Surface Modification of Calcium Carbonate with Cationic Polymer and Their Dispersibility

Bacterial Modification of Calcium Carbonate

Surface Modification of Ground Calcium Carbonate with Starch, Sodium Stearate, and Hexametaphosphate

Ground calcium carbonate (GCC) was modified by starch with the aid of sodium stearate and sodium hexametaphosphate. The GCC was encapsulated within the complex. The effect of the dosages of sodium stearate and sodium hexametaphosphate on the coating weight of modified GCC and the complex utilization rate were studied. The SEM images of modified GCC were compared with that of unmodified GCC. The...

Improved anti-proliferative effect of doxorubicin-containing polymer nanoparticles upon surface modification with cationic groups.

Polymer nanoparticles (PNPs) possessing a high density of drug payload have been successfully stabilized against aggregation in biological buffers after amine modification, which renders these PNPs positively charged. The resulting charge-stabilized PNPs retain their original narrow particle size distributions and well-defined spherical morphologies. This stabilization allows these PNPs to have...

the effect of cationic modification of precipitated calcium carbonate (pcc) on the optical and physical properties of paper

in this study, precipitated calcium carbonate (pcc) was modified using cationic starch, and its effect on optical and physical properties of paper was examined in comparison with unmodified filler afterwards. to determine the filler retention in paper, both modified and unmodified fillers were added to pulp suspensions by 20, 30, and 40 percentages. for comparing the utilization effect of modif...

Modification of Montmorillonite and Prediction of Polymer/Clay Affinity Using Surface Properties and Lattice Model

"> Sodium montmorillonite (Na-MMT) was organically modified using 11- aminoundecanoic acid (AUA) and methacryloxyethyltrimethylammonium chloride <span style="font-size: 9pt; color: #000000; font-style: n...