Epoxy Silanes Coupling Agent & Adhesion Promoter

Epoxy silanes are bifunctional organosilanes whose molecules consists of a reactive epoxy group and a hydrolysable alkoxy group. As the main series of epoxy silane coupling agents, epoxy silanes have the same capabilities to promote adhesion between organic polymers and inorganic materials. Suitable organic polymers include epoxy, urethane, acrylic, silicone and polysulfide resins. Suitable inorganic materials include glass, metals, dyes, fillers and minerals.

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Key Features of Epoxy Silanes

Particularly, epoxy silanes possess a unique property, that is, non-yellowing adhesion. Compared with other functional silanes, for example, amino silanes, epoxy silanes are more stable and won't affect the color of the finished goods. This unique property allows epoxy silanes to be a more suitable adhesion promoter in various coating, sealants and adhesives fields.

Development Status of Epoxy Silanes

At Co-Formula, there are a lots of epoxy functional silanes available, not only commercial ones, but also silanes with special structures. Co-Formula epoxy offerings consist of regular silanes with epoxy and alkoxy groups and special dual-end type epoxy siloxanes. Experts from Co-Formula have been developing new epoxy silanes for a decade, which made Co-Formula became a leader in specialty epoxy silanes production.

Functions & Applications of Epoxy Silanes

Co-Formula epoxy silanes are mainly used as adhesion promoters in coatings, adhesives and sealants industry, where they can promote adhesion, improve inorganic filler dispersion, and especially, enhance anti-corrosive properties. Therefore, for epoxy silanes, marine coating is one of the most essential application fields.

In addition to general-purpose applications in solvent-based resins system, epoxy silanes can also be used in waterborne system. Waterborne coatings are much eco-friendlier than solvent-based coatings. It&#;s expected that market share of waterborne coatings will be expanded in near future.

More and more customers or end-users from semi-conductors and electricity industries purchase Co-Formula epoxy silanes. Epoxy silane coupling agent's main end applications are for electronic packaging and electronic encapsulation. These epoxy silanes can improve electrical properties significantly in epoxy-based packaging and encapsulation compounds. Co-Formula epoxy silanes with limited Chlorine content can also enhance the safety and anti-corrosion properties of semiconductors or PCBs.

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Epoxy Silane Oligomer Crosile®AK200

 

Chemical Properties

Crosile®AK200 functionalctional water-based system adhesion enhancer. Used for enhancing adhesion and adhesion of most common emulsions and substrates such as water-based epoxy, water-based acrylic and water-based polyurethane.

Such as: metal, glass, ceramics, concrete and other inorganic base materials.

The molecule of Crosile®AK200 has a strong activity, and it can form a strong covalent bond with emulsion and inorganic base material, which makes the bonding material and base material have a strong bond, and it is difficult to peel.

Practical application shows that Crosile®AK-200 has a more obvious effect on adhesion enhancement under acidic conditions (pH=4 or so). The Crosile®AK-200 is stable in water and does not affect performance if stored for a long time.

 

 

Specifications

Test Item

Target Values

(Spec, Limits)

Appearance

Suggested reading:
Roberts 1 Gal. (4 qt.) Carpet Pad SBR Latex Water ...
Food additive products | Magnesium oxide ...

For more information, please visit Silane Crosslinking Agent.

Light yellow transparent liquid

Flash point

>115&#;

Density (20°C) g/cm3

1.15-1.17

Viscosity (25&#; mpa.s) 30-40

Epoxy Value (equiv./g)

4.5-4.8

More information:

Different performance of silane Crosile®AK200 on Coating

 

Application

Crosile®AK200 is developed for the following typical applications:

Water-based acrylic emulsion;

Waterborne wood paint can significantly reduce the water absorption of the film and improve the water resistance of the film.

Pigment dispersion;

Water-based workshop primer;

Water-based metallic paint;

Water-based ink.

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