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Malvern Minerals Novacite® Daper Untreated Lamellar Quartz Filler/Extender

Category Ceramic , Oxide , Silicon Oxide , Other Engineering Material , Additive/Filler for Polymer
Manufacturer Malvern Minerals Company
Trade Name Novacite®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Malvern Minerals Novacite® Daper Untreated Lamellar Quartz Filler/Extender.pdf
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Material Notes:
Novacite® quartz silica has closely controlled sizing that is used extensively in the coatings field. Novacite® has broad acceptance as silica in special purpose, product finishes OEM, automotive and industrial coatings. The unique, disc-like or lamellar shape of Novacite® makes it useful for coating systems where low oil absorption and improved barrier properties are desired. In coatings, the lamellar plate overlap parallel to the substrate surface. It has a polar, wettable surface and is very transparent in the UV and visible range. Its structure alpha (low) quartz, which is stable to 573°C. The crystallography of Novacite shows it is an uncommon variety of quartz, with anhedral or subhedral crystals that cleave along the principal axis of the molecular structure.Information provided by Malvern Minerals Company.
Physical Properties Metric English Comments
Specific Gravity 2.65 g/cc
2.65 g/cc
Bulk Density 0.8486 g/cc
0.03065 lb/in³
Loose packed
1.326 g/cc
0.04789 lb/in³
Dense Packed
Brightness 80 %
80 %
GE Brightness
Oil Absorption 17 - 20 %
17 - 20 %
Fineness 5.0 - 7.0
5.0 - 7.0
Hegman
Water Absorption 8.7 %
8.7 %
0.00 %

@Temperature 110 °C,
Time 10800 sec
0.00 %

@Temperature 230 °F,
Time 3.00 hour
0.00 %

@Temperature 1000 °C,
Time 1800 sec
0.00 %

@Temperature 1830 °F,
Time 0.500 hour
Porosity 0.48 - 0.52 %
0.48 - 0.52 %
Particle Size 4.5 - 7.5 µm
4.5 - 7.5 µm
average
<= 10 µm
<= 10 µm
78% finer
<= 20 µm
<= 20 µm
99% finer
pH 6.0 - 6.3
6.0 - 6.3
in distilled water
Mechanical Properties Metric English Comments
Knoop Microhardness 820
820
Hardness, Mohs 7.0
7.0
Thermal Properties Metric English Comments
Specific Heat Capacity 0.803 J/g-°C

@Temperature 0.000 - 200 °C
0.192 BTU/lb-°F

@Temperature 32.0 - 392 °F
Typical Novacite; finer grades are lower than coarser grades
Transformation Temperature 573.7 °C
1065 °F
on heating
573.8 °C
1065 °F
on cooling
Optical Properties Metric English Comments
Refractive Index 1.550
1.550
Component Elements Properties Metric English Comments
Al2O3 0.102 %
0.102 %
CaO 0.014 %
0.014 %
Fe2O3 0.039 %
0.039 %
Loss on Ignition(%) 0.19 %
0.19 %
MgO 0.021 %
0.021 %
SiO2 99.49 %
99.49 %
TiO2 0.015 %
0.015 %
Descriptive Properties Value Comments
Acid Number 0
0-18
Color Gray-Tan
Wet
White
Dry
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