Amine Functional Silicone Fluids

About Amine Functional Silicone Fluids

Amine functional silicone fluids combine the polarity of amines with the advantages of silicone fluids. The polarity of the alkyl amine gives the silicone an affinity for metallic and polar substrates. This quality is advantageous in release agent and lubricant applications where the extra substrate affinity caused by even a trace of amine functionality leads to enhanced lubricity and durability. Additionally, amines can be used as catalysts to promote moisture curing of alkoxy groups in Amine/Alkoxy functional silicones and they can also be useful in crosslinking reactions.

Pendant Amine/Dimethyl Copolymers

Randomly Distributed Amine-Alkyl/Dimethyl Copolymers

Genesee Polymers Corporation manufactures three Amine-Alkyl/Dimethyl copolymers with the following general structure where the blocks are randomly distributed:

Pendant Amine Dimethyl Copolymers
Product x y Viscosity (cPs) @ 25°C Amine Number *
GP-4
58
4
125
90
GP-6
100
4
260
49
GP-581
118
11
450
110
* milliliters of 0.1N HCl needed to neutralize 10 gms of product

Polar Amine/Alkyl Functional Blocks

In addition to the pendant amine copolymers listed above, Genesee Polymers also offers a wide range of more polar diamino/alkyl functional blocks for applications where a stronger interaction is required with a given substrate. These fluids have the following general structure where the copolymer blocks are randomly distributed:

Pendant Diamine Dimethyl Copolymers
Product x y Viscosity (cPs) @ 25°C Amine Number *
GP-988-1
95
5
200
130
GP-344
200
2
670
27
GP-997
400
3.4
2000
24
GP-342
400
1
3700
8
GP-316
400
8
6600
54
* milliliters of 0.1N HCl needed to neutralize 10 gms of product

Amine/Alkoxy End-Blocked Silicones

When Amine and Alkoxy functional groups are combined on the end of a silicone, the Amine catalyzes hydrolysis and condensation of the alkoxy groups. The result is a novel moisture curable system that produces a soft, flexible film useful for release coatings or any application that requires a water resistant, protective coating. Genesee Polymers Corporation manufactures two types of silicones in this category, rapid cure and slow cure. The rapid cure products react with ambient moisture in the air and form a cured film within minutes. The products in this category are listed from fastest curing rate to slowest curing rate. The slow cure products thicken very slowly on exposure to moisture without forming a completely cured film.

Rapid Cure

Product Viscosity (cPs) @ 25°C Amine Number *
GP-RA-157
110
55
GP-657
120
54
GP-34
3500
3.3
* milliliters of 0.1N HCl needed to neutralize 10 gms of product

Slow Cure

Product Viscosity (cPs) @ 25°C Amine Number *
GP-846
30
110
GP-871
1000
14
GP-145
1900
11
* milliliters of 0.1N HCl needed to neutralize 10 gms of product

Amine End-Blocked Silicones

Amine End-Blocked Silicones are useful for adding flexibility and high temperature breakdown resistance to Amine Curing Systems. Genesee Polymers Corporation manufactures several Amine End-Blocked Silicones that have no alkoxy functionality.

3-aminopropyl endcapped polydimethylsiloxane
Product x Viscosity (cPs) @ 25°C Amine Number *
GP-967
0
5
805
GP-965
10
15
200
GP-654
92
180
28
GP-966
334
2500
8
* milliliters of 0.1N HCl needed to neutralize 10 gms of product

Amine Functional Paintable Silicone Fluid

GP-7100, also listed under paintable release agents, is amine functional. The amine functionality gives it a higher affinity for mold surfaces and the absence of dimethyl silicone units makes it compatible with most paints and coatings.

Paintable Amine Functional Silicone Fluid
Product Molecular Weight (Calculated) Viscosity (cPs) @ 25°C Amine Number *
GP-7100
7800
750
13
* milliliters of 0.1N HCl needed to neutralize 10 gms of product