Critical pigment volume concentration point

Figure 5.4 Pigment volume concentration curves comparing the critical pigment volume concentration point of untreated CaC03-filled mineral oil (left) with 0.5% KR TTS-treated CaCOj-filled mineral oil (right) predicting the ability to fill plastics with higher loadings of filler without detracting from mechanical properties.

Dilatancy occurs less frequently in pigmented systems. In flush pastes or pigment concentrates, which are formulated at high pigment levels, shearing may produce an increase in viscosity ip As the pigment concentration reaches the vicinity of the critical pigment volume concentration, and even more so if this point is ex-... 

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