Page 30 - Handbook of Surface Improvement and Modification

2.2 Additives used 25

2.2.10 SILICONE RESIN

GENERAL INFORMATION
Name: siloxane CAS #: 9016-00-6, 351498-70-9
EC #: 613-165-5 Active ingredient, wt%: 2.5
Product composition: alkyl-modified siloxane, phenylethylmethy-modified siloxane, polydimeth-
ylsiloxane polyester-modified siloxane, ultrahigh molecular weight siloxane wax modified by
siloxane; carrier: 2-butoxyethanol, LDPE, PP; additive: fumed silica (30 wt%)
PHYSICAL PROPERTIES
State: liquid, solid/pellets Odor: odorless, slight Color: clear, white, off-white,
brownish
o
o
o
Melting point, C: 54-105 Boiling point, C: 151 to >250 T , C: 65-75
g
Erichsen scratch visibility test: 1.5 with 1 wt%; 3.8 with 1 wt% pH: 8
3
MFI, g/10 min: 0.1 Bulk density, kg/m : 700 Vapor pressure, kPa: 0.0013
o
3
Viscosity, mPas: 80-2000 Volatility, %: <1.5/3h at 150 C Density, kg/m : 880-1150
HEALTH & SAFETY
o
o
Autoignition, C: not self-igniting; 290 to >400 Flash point, C: 61 to >200
Rabbit dermal LD50, mg/kg: 2270 Teratogenicity: suspected
Rat oral LD50, mg/kg: 1750 to >4800 OSHA, PEL, ppm: 50
ECOLOGICAL PROPERTIES
Aquatic toxicity, Daphnia magna, 48-h, LC50: 1720/24H
Aquatic toxicity, Daphnia magna, 96-h, LC50: >0.0091
Aquatic toxicity, Green algae, 48-h, LC50: >0.0091 to 0.022/72H
Biodegradation probability: 3.7%/28d/not readily biodegradable
Partition coefficient, logK : 6.48
ow
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; Improved impact
strength, higher tensile strength, reduction of brittleness, hydrophobizing; Better appearance,
improved slip properties; fewer paint and printing problems, and a broader range of performance
capabilities; Improved extrusion process by decreased torque; Improved processing and modified
surface characteristics, improved throughput, reduced energy consumption; Imparts excellent mar
resistance and improves anti-blocking of varnishes and coatings; No orange peel
Recommended for polymers: ABS, LDPE, PA, PET, PBT, PPE, PC/ABS, POM, PP, PP/TPO, TPO/
TPE, TPU
Recommended for products: automotive, electronics, wire and cable, automotive interiors, business
machines housing and drive parts, color concentrates and mineral-filled compounds, footwear,
kitchen counters, appliances
Concentrations used, wt%: 0.1-5
Food approval FDA: 177.1520 (PE, PP, EVA, PS, single/repeated PET); 177.1520(c)2.1 and 2.2
(masterbatch complies) and 181.28 (siloxane complies)