Page 28 - Handbook of Plastics Technologies

INTRODUCTION TO POLYMERS AND PLASTICS

+ + + + + + O
Carbon black
+ – + + + + +
Metallic oxides
+ + –+ + + + + O ++
Calcium carbonate
+ + + – + + O +
Glass spheres
– + + + ++ + + + + +
Kaolin
+ – + + + + + +
Silica
+ + – + + + + – ++
Sand/quartz powder
+ + + + + O +
Graphite
O + + – + + + + + + O + O +
Talc
++ ++
+ –+ + + + + + + + +
Mica
+ O +
Cellulose
++ O
Synthetic fibers
–+ + – + O
Whiskers
++ ++
+ – + + + +
Carbon fiber
++ – + + + + + + +
Wollastonite
++
+ – + + + + + + O +
Asbestos
++ + ++ –+ + + ++ –+ – +
Effect of Filler Type on Properties 51 ++ large influence, + influence, O no influence, – negative influence.
Glass fiber

TABLE 1.4 Tensile strength Compressive strength Modulus of elasticity Impact strength Reduced thermal expansion Reduced shrinkage Better thermal conductivity Higher heat deflection temperature Electrical conductivity Electrical resistance Thermal stability Chemical resistance Better abrasion behavior Extrusion rate Machine abrasion Price reduction

1.14
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