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·POSITION:Products → Industry → Powder treatment → γ- aminopropyltrimethoxysilane
Product information
Product description
Structural formula:
Empirical formula:C6H17NO3Si
Molecular weight:179.3
CAS No.:13822-56-5
Chemical name:γ-Aminopropyltrimethoxysilane
Properties
LT540 is a bifunctional organosilane possessing a reactive primary amine and hydrolysable inorganic methoxysilyl groups. The dual nature of its reactivity allows it to bind chemically to both inorganic materials (e.g. glass, metals, fillers) and organic polymers (e.g. thermoplastics, thermosets, elastomers) thus functioning as an adhesion promoter and/or surface modifier.
LT-540 is a clear, colorless liquid having an amine-like odor which is soluble in alcohols and aliphatic and aromatic hydrocarbons.
Technical data
Reactivity
In the presence of water, the methoxy groups of LT-540 hydrolyze form reactive silanol groups which can bond to a variety of inorganic substrates. The organophilic amino group of LT-540 can react with a suitable polymer.
The hydrolysis takes place autocatalytically and the pH of the Hydrolysate is about 11. Examples of suitable inorganic substrates are glass, glass fibers, glass wool, mineral wool,silicic,acid,,sand,cristobalite,wollastonite, mica and aluminum hydroxid, kaolin, talc, other silicate fillers, metal oxides and metals.
LT540 may be used with such polymers as epoxy, phenolic, furan and melamine resins, polyurethanes, PA, PBT, PC, EVA, modified PP, PVB, PVAC, PVC, acrylics and silicones.
LT540 can undergo reactions with ketone or ester solvents. Silane or silanized substrates can react with carbon dioxide to form the corresponding carbonates and/or carbamates, respectively.Product modifications are possible through addition reactions with suitable monomeric or polymeric compounds (e.g. isocyanates, epoxides).
Application and performance
LT-540 is an important additive in many application. Examples include:
★Glass fiber/glass fabric composites: as a finish or a size ingredient.
★Glass and metal primers.
★Foundry resins: as an additive to cold-curing phenolic and furan resins.
★Sealants and adhesives: as a primer or additive and for chemical modification.
★Mineral-filled composites: for pretreat-
ment of fillers and pigments.
★Paints and coatings: as an additive and primer for improving adhesion to the substrate.
Important functional effects that can be achieved through the use of LT-540 include:
★Improved mechanical properties, such as flexural strength, tensile strength, impact strength and modulus of elasticity.
★Improved moisture and corrosion resistance.
★Improved electrical properties, such as dielectric constant, volume resistivity.
LT-540 can also improve such processing properties as:
★Adhesion
★Filler dispersion
★Rheological behavior in viscosity, Newtonian behavior.
★Increased filler loading.
Product safety, handling and storage
Customers considering the use of this product
should review the latest Material Safety Data Sheet and label for product safety information, handling instructions, personal protective equipment if necessary, and any special storage condition required. The “Best use before end” date of each batch is shown on the
product label. Storage beyond the date
specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
Packaging
Information on available container sizes is obtainable from NEW BLUESKY supplier.
【International Sales Office】
Address:Room 2401,Tower B, Winner Plaza, No.100 Huangpudadao West Road, Tianhe District, Guangzhou,China
Tel:+86-020-38856806
Fax:+86-020-38856809
E-mail:feng@blueskychemical.com
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Address:No.8 Development Avenue,New Materials Industrial Park,High tech Zone, Xiantao City, Hubei Province, China
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E-mail:feng@blueskychemical.com
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