Struktol Company of America
201 E. Steels Corners Road
P.O. Box 1649, Stow, OH 44224-0649
(330) 928-5188 ò (800) 327-8649
[email protected]
www.struktol.com
Silane Coupling Agents
Struktol Silane Coupling Agents are used in rubber compounding. They provide coupling of non-black pigments
to the polymer backbone allowing for: Improved abrasion resistance, Higher compound modulus, Lower hystersis,
Improved compression set, Improved rolling resistance in tire tread compounds.
Product name:
Chemical composition:
Features:
STRUKTOL® SCA 98
Bis (3-triethoxysilylpropyl)
tetrasulfide
• Improves reinforcing
capabilities of fillers with
silanol groups
Typical data:
Sulfur content:
Product form:
21-23%
Pale yellow
liquid
Specific gravity: 1.089
• Improves abrasion
resistance
• Provides higher compound
modulus
• Improves rolling resistance
in tread compounds
STRUKTOL® SCA 98CB
Same as SCA 98
• Same as SCA 98
Sulfur content:
11-13%
Black
microbead
Specific gravity: 1.30
STRUKTOL® SCA 98PL
Same as SCA 98
• Same as SCA 98
Sulfur content:
STRUKTOL® SCA 98WT
Same as SCA 98
• Same as SCA 98
Sulfur content:
STRUKTOL® SCA 930CB
Chloropropyltriethoxy silane
• Improves reinforcing
characteristics of mineral
fillers in halogenated
elastomers
Chloride content: 7.2% + 0.5 Black powder
• Mainly used in glass
reinforced epoxy resin,
ABS, nylon and PBT
SCA 960 content: >95.0%
STRUKTOL® SCA 960
γ-Glycidyloxypropyl
trimethoxy silane
• Improves tensile strength
• Improves tear strength
• Improves relative
extensibility
10.5-11.5% Pale yellow
pastille
Specific gravity: 1.006
15-16.56% Off white
powder
Specific gravity: 1.283
Specific gravity: 1.30
Specific gravity: 1.070+0.050
Clear liquid
Silane Coupling Agents
Product name:
Chemical composition:
Features:
STRUKTOL® SCA 971
Vinyl trimethoxy silane
• Improves the reinforcing
capability of fillers with
silanol groups in peroxide
cured compounds
Typical data:
Product form:
SCA 971 content: > 99.5%
Pale yellow
liquid
Specific gravity: 0.970+0.020
• Improves tensile strength
• Improves tear strength
• Improves abrasion
resistance
STRUKTOL® SCA 972
Vinyl tri(2-methoxyethoxy)
silane
• Improves the reinforcing
capability of fillers with
silanol groups in peroxide
cured compounds
SCA 972 content: >98.0%
Clear liquid
Specific Gravity: 1.040+0.020
• Improves tensile strength
• Improves tear strength
• Improves abrasion
resistance
STRUKTOL® SCA 972PL
Same as SCA 972
• Same as SCA 972
SCA 972 content: 50%+1.00 White pastille
Specific gravity: 0.991+0.020
STRUKTOL® SCA 972WT Same as SCA 972
• Same as SCA 972
SCA 972 content: 68-72%
Light gray
powder
Specific gravity: 1.42+0.020
STRUKTOL® SCA 974
γ-Methacryloxypropyl
trimethoxy silane
STRUKTOL® SCA 974WT Same as SCA 974
• Improves coupling of fillers SCA 974 content: >97.0%
Clear liquid
with silanol groups, and
fiberglass in the resin/
Specific gravity: 1.040+0.020
polymer matrix
• Same as SCA 974
SCA 974 content: 68-72%
Off white
powder
Specific gravity: 1.598+0.020
STRUKTOL® SCA 984
3-Thiocyanatopropyltriethoxy
silane
• Improves compound
modulus
Sulfur content:
12%+1.00 Amber
colored
• Improves compression set
• Improves abrasion
resistance
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liquid
Specific gravity: 1.03
STP0206-60A
Silane Coupling Agents
Product name:
Chemical composition:
Features:
STRUKTOL® SCA 985
Bis (3-triethoxysilylpropyl)
disulfide
• Improves reinforcing
capabilities of fillers with
silanol groups
Typical data:
Sulfur content:
Product form:
12.5-14.5% Yellow liquid
Specific gravity: 1.04
• Improves abrasion
resistance
• Provides higher compound
modulus
• Improves rolling resistance
in tread compounds
STRUKTOL® SCA 985CB
Same as SCA 985
• Same as SCA 985
Sulfur content:
7.5%+1.0
Black pearls
Specific gravity: 1.00
STRUKTOL® SCA 985PL
Same as SCA 985
• Same as SCA 985
Sulfur content:
6-7%
Pale orange
pastille
Specific gravity: .991
STRUKTOL® SCA 989
3-Mercaptopropyltriethoxy
• Improves tensile strength
silane
• Improves tear strength
STRUKTOL® SCA 989WT Same as SCA 989
MPTES content
≥95%
• Improves abrasion
resistance
Specific gravity: 1.00
• Same as SCA 989
SCA 989 content: 70%
Clear liquid
Light gray
powder
Specific gravity: 1.20
STRUKTOL® SCA 1100
Aminopropyl triethoxy silane
• Improves the reinforcing
Min. purity:
98.0%
Colorless
properties of fillers
liquid
containing hydroxyl groups Specific gravity: 0.946+0.01
(08/24/05)AAC/rca
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STP0206-60A