chemical structure. dissolution association advantages low viscosity and easy handling. stable...

CHEMICAL STRUCTURE

DISSOLUTION

ASSOCIATION

ADVANTAGES

• Low viscosity and easy handling.

• Stable viscosity at wide P H range.

• Stable viscosity in long term store.

• Stable from Microbes & Enzymes.

• Any rheology of the paint is possible.

• Cost saving

HISOL DAlkali Swellable Associative Thickener

Classification of HISOL D

CONVENTIONAL THICKENER

VOLUME RESTRICTION FLOCCULATION

Spatter

• Paints using conventional thickenersHEC). Volume restriction flocculation : Shear thinning effect : spatter.

• Paints using associative thickeners :

Lower spatter when roll application.• Estimate of the roll spatter. • Spatter test : Roll 7x2 inch, 1 inch nap, 2ft/sec, 12g of

paint, 1x2 ft wallboard. Spatter collection : 9x12 in. Black paper. One feet below the vertical wallboard.

Spatter test

Spatter test of Interior paint

Estimate of the Spatter

• Roughly : High shear viscosity (shear rate : 10,000/sec).

• More exactly : Extensional Viscosity

Extentional Viscosity

Measurement

• Spinning apparatus (Measure the Extensional Viscosity)

RHEOLOGY OF THE WATER BASE PAINTS

PAINT FLOW

• Adjust flow balance Better one coat coverage. Sagging balance.

• Estimation Low shear viscosity : Graph Sag-meter, Leveling gauge Zhan cup viscosity.

PICTURE(1)

PICTURE 2

Selection Guide

Paint Formulation

• HS-formula