Page 137 - Handbook of Adhesion Promoters

130 Properties of Adhesion Promoters

Recommended applications: most acrylic and similar latex emulsion based adhesives, and water-
borne epoxy/urethane, coatings on: metal, plastic, wood; adhesives to metal, wood, plastic (treated
PP/PE, Mylar), water-borne coatings having a pH of 7-11 including coatings formulated with
acrylic/styrenated acrylic latex emulsions, and water-borne polymer dispersions of alkyds, epox-
ies, urethanes, and others. Used as an adhesion promoter in polysulfides and phenolic resins for
abrasives and insulating materials and as a primer for sealants, adhesives and coatings. Mainly
used as a surface modifier for glass fibers, glass-fiber fabrics, fillers (e.g., glass or mineral wool,
mica, talc, wollastonite, kaolin, cristobalite, metal oxides) and pigments used in various plastics,
including epoxy resins, polyamides, polyacrylates, polyurethanes, ethylene/vinyl acetate copoly-
mers and many others.
Processing methods: high shear mixing
Typical dose: 0.01-5 wt%
Food approval (FDA): FDA 175.105, 176.300, 177.1390, 177.2465
Conditions to avoid: contact with moisture must be avoided during processing to prevent unde-
sired hydrolysis with moisture must be avoided to prevent undesired hydrolysis

7.26 SILANE+SILICA

GENERAL INFORMATION
Name: Chartsil, Danasylan SIVO CAS #: 780-69-8, 112926-00-8
Functional group: amine, carboxy, hydroxy, mercapto Active matter, wt%: 9-36.8
General description: amino functional metal organic adhesion promoter absorbed upon a high
surface area precipitated silica carrier
Composition: 72% Chartsil B-525.1 (liquid) + 28% HiSil ABS precipitated silica; stable aqueous
dispersion of fine, non-agglomerated, nano-scale inorganic particles that are encapsulated by
hydrolyzed and condensed organofunctional silanes, impurity, <3% methanol; hydro- oleophobic
modifier for sol-gel system, impurity 1-<5 ethanol, 0.1-<1% methanol
Metal content, %: 3.1-8.5
PHYSICAL PROPERTIES
o
Boiling point, C: 96-102 Color: white, pale yellow to orange
o
3
Density, at 20 C, kg/m : 1025-1140 Odor: almost odorless
o
pH: 4-7 Specific gravity at 20 C: 1.025-1.094
o
Solubility in water at 25 C, g/l: hydrolysis and condensation State: free flowing solid; liquid
o
Viscosity at 20 C, mPas: 7-152
HEALTH AND SAFETY
o
Autoignition temp., C: 450 HMIS: fire, health, reactivity: 1-2, 1-2, 0
o
Flash point, C: >95 NFPA: fire, health, reactivity: 1-2, 1, 0
Carcinogenicity: IARC, OSHA, NTP: no ingredient of this product present at levels greater than
or equal to 0.1% is identified as probable, possible or confirmed human carcinogen
DOT, shipping name: not reg- TDG class: not regulated ICAO/IATA class: not regu-
ulated lated
3
LD50, oral rat, mg/kg: >2000 LC50 inhalation, rat, mg/m : >5500/4H/ dust/mist
UN/NA class: 1230