Wollastonite
Fibertec’s wollastonite products come in powder and fibrous grades.
Powder grades tend to be used as fillers in coatings, adhesives, sealants
and paints. It is an inert material with an alkaline pH that improves
toughness, weather resistance and moisture absorption. Powders, while
having some aspect ratio, all tend to be –325 mesh. Fiber grades have a
diameter ranging from 5 to 15 microns and aspect ratios from 15 to 20.
They are most commonly used as a lower cost, lower performance
replacement for milled fibers in composites. They are compatible with all
resins and may be surface treated.
DESCRIPTION
Fibertec wollastonites are acicular (needle-like) mineral products milled
to various morphologies and bulk densities. These products can be
surface treated to enhance performance in thermoset and thermoplastic
resins.
PRIMARY USE
Fibertec wollastonite is used as functional fillers and reinforcements in
composites (thermosets) and compounds (thermoplastics) to increase
mechanical properties (tensile, flexural, impact), minimize distortion at
elevated temperatures, improve dimensional stability, and provide low
moisture absorption.
CHEMICAL COMPOSITION – ALL PRODUCTS
Notes:
1.
To designate difference between surface-modified (sized) and unmodified (unsized), equivalent product
grades are followed by “U” for Unsized and “S” for Amino Silane.
2.
Average particle diameter is determined by microscopic measurement of 100 particles. For equivalent
spherical diameter, please contact Fibertec technical department.
3.
Fibertec will develop custom surface treatments and/or morphologies upon request.
![[notes 1,3]](index_htm_files/435.png)
![[note 2]](index_htm_files/442.png)
Wollastonite
Fibertec’s wollastonite products come in powder and
fibrous grades. Powder grades tend to be used as
fillers in coatings, adhesives, sealants and paints. It is
an inert material with an alkaline pH that improves
toughness, weather resistance and moisture
absorption. Powders, while having some aspect ratio,
all tend to be –325 mesh. Fiber grades have a
diameter ranging from 5 to 15 microns and aspect
ratios from 15 to 20. They are most commonly used
as a lower cost, lower performance replacement for
milled fibers in composites. They are compatible with
all resins and may be surface treated.
DESCRIPTION
Fibertec wollastonites are acicular (needle-like)
mineral products milled to various morphologies and
bulk densities. These products can be surface treated
to enhance performance in thermoset and
thermoplastic resins.
PRIMARY USE
Fibertec wollastonite is used as functional fillers and
reinforcements in composites (thermosets) and
compounds (thermoplastics) to increase mechanical
properties (tensile, flexural, impact), minimize
distortion at elevated temperatures, improve
dimensional stability, and provide low moisture
absorption.
CHEMICAL COMPOSITION – ALL PRODUCTS
Notes:
1.
To designate difference between surface-
modified (sized) and unmodified (unsized),
equivalent product grades are followed by “U” for
Unsized and “S” for Amino Silane.
2.
Average particle diameter is determined by
microscopic measurement of 100 particles. For
equivalent spherical diameter, please contact
Fibertec technical department.
3.
Fibertec will develop custom surface treatments
and/or morphologies upon request.
WOLLASTONITE TYPICAL PROPERTIES
AND MORPHOLOGY
![[notes 1,3]](index_htm_files/27196.png)
![[note 2]](index_htm_files/27203.png)
