Colloids in Suspension

Gas Gas Liquid Liquidfoams Soap suds Cappuccino froth Solid Solidfoams Pillow foam Styrofoam packaging 

Colloidal systems are composed of a dispersed phase and a continuous phase. This table summarizes a variety of examples. 

Colloidal suspensions are similar in their time-dependent behavior to the polymer solutions we described in Chapter 4, and you will recognize some of the equations we use here from that chapter. If a material is composed of small particles of one phase dispersed in another fluid phase 

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A colloid in suspension in an electrolyte acquires a surface charge and an atmosphere of oppositely charged ions. An inner part of the atmosphere moves with the colloid... 

Uses Thickener, stabilizer, water retention aid, binder, adhesion promoter, plasticizer in construction suspending agent in detergents/cleaners rheology control agent, pigment/filler stabilizer in lacquers, paints binder, film-former for tobacco thickener, stabilizer for cosmetics (emulsions, toothpaste, shampoos, creams/lotions, ointments) protective colloid in suspension polymerization plasticizer in ceramics sticker, binder for herbicides, pesticides... 

Uses Binder, emulsion stabilizer, vise, control agent, emulsifier, film-former, protective colloid, stabilizer, suspending agent, thickener in foods, cosmetics, pharmaceuticals thickener, protective colloid in emulsion paints, adhesives binder in ceramics suspending agent in PVC polymerization protective colloid in suspension polymerization mineral flotation depressant hair preps. in blow-molded bottles tablet coating aid in... 

FIGURE 6.1 Colloids in suspension are in the dispersed or peptized state shown at left. Eventually the particles would aggregate into larger entities, which will sediment. The reverse process is possible, which can lead to landslides. 

Uses Protective colloid In suspension and emulsion polymerization Properties Gran. vise. (Hoppler) 10,20,300 or 4000 mPa-s (20 C) avail. 5% moisture... 

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