Silanes
Silanes are dual functional molecules having both organic and silicon molecules. This means they can bond with both organic and inorganic substances. The organic part bonds or interacts with a polymer or organic matrix. Whilst the silane ester part will bond or interact with inorganic substance such as glass or sand, this produces a hydrolysis or condensation reaction. Thus, silane create a chemical bridge between organic and inorganic materials.
Prime Functions
- Adhesion Promotors – aiding interfacial adhesion, especially in wet conditions
- Coupling agents- enhancing mechanical properties by improving the bond between mineral fibres or powders to a surrounding polymer matrix. Reduces water absorption by improving the bond of mineral fillers to rubbers and plastics thus maintaining mechanical and electrical properties. Can improve the DMA of mineral filled elastomers. Enhanced pigment binding to give better colour retention in pigmented materials.
- Crosslinkers – bonding or linking silane modified polymeric molecules by forming chemical bonds to form networks improving environmental, mechanical, chemical and thermal properties.
Other functions
- Surface tension modifiers- use of long alkyd chain (typically C3-C16) silanes can create a hydrophobic behaviour to fillers (eg fumed silica) or porous matrix (e.g. concrete). Silanes with hydrophilic organic groups can improve filler or pigment dispersion into water-based solutions, giving higher filler loadings or lower viscosity products)
- Moisture scavengers- silanes react with water so can be used as moisture scavengers in materials like polyurethanes.
Applications
- Coatings
- Paints
- Adhesives
- Primers
- Elastomers
Standard Grades
Grade
Type
CAS No:
Chemical Name
Application:
Silane RJ-560
Epoxy Silane
2530-83-8
3-(2,3-Epoxy propoxy) propyltrimethoxysilane, GLYMO
Coating, Adhesive, Sealant, Filler, composite, fibreglass
SilaneRJ-550
Amino Silane
919-30-2
3-Aminopropyltriethoxysilane, AMEO
Coating, Adhesive, Sealant, Plastics, filler, composite, fibreglass
Silane RJ-540
Amino Silane
13822-56-5
3-Aminopropyltrimethoxysilane, AMMO
Coating, Adhesive, Sealant, Filler, composite, fibreglass
Silane RJ-792
Amino Silane
1760-24-3
N-(2-amonoethyl)-3-aminopropyltrimethoxysilane, DAMO
Coating, Adhesive, Sealant, Plastics, filler, composite, fibreglass
Silane RJ-170
Amino Silane
82985-35-1
Bis(trimethoxysilylproppyl)amine,
Coating, Adhesive, Sealant, Filler, composite, fibreglass
Silane RJ-570
Amino Silane
2530-85-0
3-Methacryloxpropyltrimethoxysilane, MEMO
Coating, Adhesive, Sealant, Filler, composite, fibreglass
Silane RJ-171
Vinyl Silane
2768-02-07
Vinyltrimethoxysilane, VTMO
Coating, Adhesive, Sealant, Cable, Plastics, Fiberglass
Silane RJ-172
Vinyl Silane
1067-53-4
Vinyltri(isopropyl)silane, VTMOEO
Coating, Adhesive, Sealant, Cable, Plastics, Fiberglass
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To the best of our knowledge, the information contained herein is accurate and reliable as of the date of publication; however, we do not assume any liability whatsoever for the accuracy and completeness of the above information. Plascoatings makes no warranties which extend beyond the description contained herein. It is the customers’ responsibility to inspect and to test our products in order to satisfy themselves as to the suitability of the products to their particular purpose. The customers are responsible for the appropriate, safe and legal use, processing and handling our products.
