Page 25 - Handbook of Surface Improvement and Modification

20 Scratch and Mar Resistance

2.2.7 POLYMER MODIFIED AND ITS COMPOSITIONS

GENERAL INFORMATION
Name: modified polymers and their compositions
Product composition: polymers: micronized polypropylene, polyamide, polyester, polyolefin,
synthetics resins blend; modifications: fatty amides, fatty glycerides, modified fatty acids,
organically modified siloxane, siloxane, waxes
PHYSICAL PROPERTIES
State: solid, powder, pellets, Odor: odorless Color: colorless, white, off-
liquid white, amber
o
o
Melting point, C: 54-150 Softening, C: 69-145 MFI, g/10 min: >100
3
3
Particle size, μm: 6-22 Bulk density, kg/m : 100-720 Density, kg/m : 940-1060
Viscosity, mPas: 150
HEALTH & SAFETY
o
3
Flash point, C: >100-282 OSHA, PEL, mg/m : 15
USE & PERFORMANCE
Outstanding properties: Improved permanent long-term scratch resistance. Highly effective and
does not have to be combined with amides, no impact on surface haptics. Improves resin flow/fill,
improves dispersion of other resin additives (reinforcements, fillers, and pigments), shortens cycle
times, reduces temperatures and pressures of molding machines, and reduces or eliminates weld/
knit lines, effective anti-scratch/mar additive.
Recommended for polymers: ABS, acetal, acrylics, alkyds, epoxies, nitrocellulose, PA, PA/GF, PC,
PE, PMM/ABS, PC/ABS, PET, thermoplastic elastomers, thermosets, PP/talc, PP/TPO/talc, PPS,
PS, PSU, TPO/TPE
Recommended for products: car interior and exterior: dashboards, interior door panels, foot space,
head room, child car seats, electronics
Concentrations used, wt%: 0.1-5
Food approval FDA: 177.1520 (PE, PP, EVA, PS, single/repeated PET), FDA 21CFR175.300,
75.105/adhesives, 175.125/pressure-sensitive adhesives, 175.300/resinous and polymeric coatings,
176.170/components of paper, paperboard in contact with aqueous and fatty foods, 176.180/com-
ponents of paper and paperboard in contact with dry food