【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
【Chinese Company Headquarters】
Address:NO.8 Chemical Industry Park Economic Development Zone Xiantao,Hubei,China
Tel:+86-0728-3254088
Fax:+86-0728-3253808
E-mail:feng@blueskychemical.com
·POSITION:Products → Function → Adhesion promotor → γ- (2,3-epoxypropyl) propyltrimethoxysilane
Product description
Structural formula:
Empirical formula:C9H20O5Si
Molecular weight:236
CAS No.:2530-83-8
Chemical name:γ-Glycidoxypropyltrimethoxysilane
Properties
LT560 is a bifunctional silane possessing a reactive organic epoxide 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 or elastomers) thus functioning as adhesion promoter, cross- linker, and/or surface modifier.
The use of LT-560 as a coupling agent in mineral-filled plastics improves filler dispersibility, reduces its sedimentation tendency and greatly lowers the resin's viscosity. In addition, it leads to higher filler loading and a marked increase in water (vapor) resistance, as well as resistance to acids and bases. As a component of adhesives and
sealants, LT560 improves both adhesion to the substrate and mechanical properties such as flexural strength, tensile strength and modulus of elasticity.
It is a clear, colorless low-viscosity liquid with a slight terpentine-like odor. It is soluble in alcohols, ketones and aliphatic or aromatic hydrocarbons.
Technical data
Reactivity
In the presence of water, the methoxy groups of LT-560 hydrolyze to form reactive silanol groups which can bond to a variety of inorganic substrates. The organophilic epoxy group can undergo a ring-opening reaction with nucleophiles such as alcohols and amines. An acidic or basic catalyst may be required.
Examples of suitable inorganic substrates are glass, glass fibers, quartz, cristobalite and metals. It may be used with such polymers as epoxy, phenolic, polyurethanes, polysulfides, PVAC, acrylates.
Application and performance
LT-560 is an essential ingredient in the products of many industries. Examples are:
★Glass fiber/glass fabric composites: as a finish or a size ingredient.
★Foundry resins: as an additive to polyurethane resins.
★Sealants and adhesives: as a primer or additive.
★Mineral filled composite: for pretreat- ment of fillers and pigments or as an additive to the polymer.
★Paints and coatings: as an additive and as
a primer for improving adhesion to the substrate, especially glass and metal.
★Improved shelf life over aminosilanes in polyurethanes.
Important functional effects that can be achieved through the use of LT-560 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. Enhanced electrical properties of epoxy based electronic encapsulant and package ing materials, resulting from improved bonding between resin and substrate or filler.
LT-560 can also improve such processing properties as
★Rheological behavior (i.e. viscosity reduction) and Newtonian behavior.
★Increased filler dispersion and loading.
★None yellowing.
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
【Headquarters & Plant】
Address:No.8 Development Avenue,New Materials Industrial Park,High tech Zone, Xiantao City, Hubei Province, China
Tel:+86-0728-3254088
Fax:+86-0728-3253808
E-mail:feng@blueskychemical.com
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