Silanes & Siloxanes

SiSiB SILICONES is a leader of silicone gel manufacturers, and has been
producing silane coupling agents since 1989.

SiSiB is a leading manufacture of silanes and silicones, such as alkyl silanes,
allyl silanes, silylating agent, etc. It started producing Silane Coupling
Agent in 1989. Silane coupling agents are predominately used as mediators,
binding organic materials to inorganic materials. The silane coupling agent
will improve the electrical and mechanical strength properties of materials in
wet or dry conditions.
Organo silanes or organofunctional silanes are also a very important
pharmaceutical and chemical industry, most notably as derivatizing and
protecting reagents, intermediates in organic synthesis, reducing agents,
surface modifiers, adhesion promoters, crosslinking agents. SiSiB silane
siloxane concrete sealers also play an important role in silane siloxane
chemistry industry.

Silane Coupling Agent Mechanism

Silane coupling agents are generally illustrated as X-Si-(OR)3.

Silicone (Si) is the center of the silane molecule which contains an organic
functional group (X) [ex: vinyl, amino, chloro, mercapto, epoxy silanes, etc.],
with a second functional group (R) [ex: methoxy, ethoxy, etc.]. The functional
group (R) will attach to an organic resin while the functional group (R)
attaches to an inorganic material or substrate to achieve a "coupling" effect.

Silane coupling agents are predominately used as mediators, binding organic
materials to inorganic materials. As a result, silanes will improve the
electrical and mechanical strength properties of materials in wet or dry
conditions.

The inorganic group (R) of the silane molecule will hydrolyze to produce
silanol, which forms a metal hydroxide or siloxane bond with the inorganic
material. The organic group (X) of the silane molecule will react with the
organic material to produce a covalent bond. As a result, the organic material
and the inorganic material are tightly bound together after heating.

This unique property of silane coupling agents is utilized widely in the
application of the silane coupling agents for the surface treatment of glass
fiber products, performance improvement of fiber-reinforced plastics by the
direct admixture to the synthetic resin, improvement of paints and other
coating materials and adhesives, modification of surface properties of
inorganic fillers, surface priming of various substrate materials, etc.

How Silane Coupling Agent Is Used To Treat The Inorganic Fillers?

Wet Method
By mixing slurry of the inorganic materials in a dilute solution of the silane
coupling agent, a highly uniform and precise surface treatment of the inorganic
material can be obtained.

Dry Method
A high shear, high speed, mixer is used to disperse the silane coupling agent
into the inorganic materials. The silane is generally applied either neat or as
a concentrated solution. When compared to the Wet Method, the Dry Method is
most often preferred for large-scale production, treating a large amount of
filler in a relatively short time and generating relatively little mixed waste;
however, it is more difficult to obtain uniform treatment with this method.

Spray Method
Spray the silane coupling agent on high temperature filler that was just taken
out from furnace. The method may omit dry procedure and make the process
simplify, but pay attention to perflation and ignite.

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Minimum Order: 1 kilograms

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