Silane coupling agent by Silicon chloroform (HSiCl3) and reactive with a group of unsaturated fatty acid olefin in catalyzed by platinum-plus, as derived from alcohol solution. Silane coupling agent is essentially a class of organic functional groups of silane, in its elements at the same time be able to have the quality and inorganic materials (such as glass, silica sand, metal, etc.) combined with the chemical reaction of groups and the organic matter and materials (synthetic resin Etc.) combined with the chemical reaction group.
Figure general formula,
Here, n = 0 ~ 3; X-hydrolysis to the group; Y-organic functional groups, can react with the resin. X is usually chlorine-based, methoxy, ethoxy, methoxy-ethoxy, acetoxy, and so on, these groups that is generated when the hydrolysis alcohol silicon (Si (OH) 3), with inorganic material to form Siloxane. Y is vinyl, amino, epoxy, acrylic acid-methyl, or SH-urea. These responses can be based with the combination of organic material response. As a result, through the use of silane coupling agent, inorganic material in organic matter and set up the interface between the "molecular bridge", both the nature of the link between the material to improve the performance of composite materials and the increase in bond strength. Silane coupling agent of the characteristics of the first application of glass fiber reinforced plastic (FRP), fiberglass for the surface treatment agent, so that the mechanical properties of glass fiber reinforced plastics, electrical properties and anti-aging properties have been greatly improved in the glass fiber reinforced plastic The industry has long recognized the importance of.
At present, the silane coupling agent from the use of glass fiber reinforced plastic (FRP) to the expansion of glass fiber reinforced thermoplastics (FRTP) used in fiber glass surface treatment agent, inorganic filler surface treatment agent, as well as sealant, resin concrete, Water-cross-linked polyethylene, packaging resin materials, shell shape, tires, tapes, coatings, adhesives, abrasive materials (grindstone) and other surface treatment agent. Silane coupling agent in the performance of these two groups differ in the group to group Y of the most important, it has a great impact on performance of products, the decisive role of the agent's performance. Only when the Y group will resins and the corresponding response from, can increase the strength of the composite material. General requirements Y group to be compatible with the resin and from coupling reaction.

Applications
The application of silane coupling agent can be broadly divided into three areas:
(A) for the surface treatment of glass fiber, glass fiber can improve the adhesion properties of resin and has greatly enhanced the glass fiber-reinforced composites strength, electrical, water resistance, anti-climate, such as performance, even in the wet, it The mechanical properties of composite materials to improve the results would be very significant. At present, the use of glass fiber silane coupling agent has been quite common for this area of silane coupling agent about the 50% of total consumption, which is used in more varieties is a vinyl silane, Amino Silane, propylene-methyl silane and so on.
(B) inorganic filler used to fill plastic. Can be conducted in advance of the filler surface treatment, but also directly to join in the resin. Fill in the resin can improve the dispersion and adhesion, improving technology to enhance performance and fill plastic (including rubber), machinery, electrical and weather-resistant properties, and so on.
(C) used as a sealant, adhesive and paint the tackifier, to increase their bonding strength, water resistance, weather-resistant properties, and so on. Silane coupling agent is often able to resolve some of the adhesive material for a long time can not be solved. Silane coupling agent tackifier as the role of the principle that it is, there are two groups; a group and stick to the combination of frame materials; and the other is a group with the polymer material or adhesive , In order to form a strong bond interface chemical bonds higher, greatly improved the adhesive strength. The application of silane coupling agent in general there are three ways: First, as a reinforcing material surface treatment agent; second is added to the adhesive, three directly into the polymer material. From its full effectiveness and cost point of view, the first two methods better.
Silane coupling agent in the adhesives industry specific applications the following areas:
① structural adhesives in the metal and non-metallic bonding, the use of silane-type tackifier, and the metal oxide will be able to condensation, or with another silane alcohol condensation, so that the atoms of silicon and plastic materials were firmly on the surface Contact. If the phenolic structure of nitrile rubber silane for the addition of tackifier, can significantly improve the bonding strength.
② bonding in the glass fiber connection at home and abroad have been widely used for silane treatment agent. It can interface with the chemical reaction, so as to enhance the bonding strength. For example, if neoprene bonding agents do not have to deal with silane, peel strength for bonding 1.07 kg / cm 2, if used to make amino-silane agent, the bonding strength of the spin-off of 8.7 kg / cm 2.
③ in the rubber and other materials bonding, silane tackifier has a special function. It is clear to raise a variety of rubber and other materials of the bonding strength. For example, glass and polyurethane rubber bonding, if do not have to deal with silane agent, adhesive peel strength to 0.224 kg / cm 2, if the increase in silane, peel strength was 7.26 kg / cm 2.
④ have been unable to use ordinary adhesive bonding solution to the issue of silane coupling agent can be used at times to solve. Such as aluminum and polyethylene, silicone rubber and metal, silicone rubber and plexiglass can be based on chemical bond theory, the choice of silane coupling agent, to be a satisfactory solution. For example, the use of vinyl-tert-butyl peroxide silane (Y-4310) can bond with aluminum foil and polyethylene; butadiene with the three-silicone triethoxysilane can and pull away from the intensity of metal To reach 21.6 ~ 22.4 kg / cm 2. General adhesive resin or with the use of coupling agent can not only improve the adhesive strength, which is more important is to increase the adhesive force of the water resistance and durability. Such as polyurethane and epoxy resin materials, although many have high adhesive strength, adhesion, but the water resistance and durability is not ideal; adding silane coupling agent after this performance can be significantly improved .
Silane coupling agent of the other aspects of the application include:
① so that the immobilized enzyme attached to the glass substrate surface,
② oil well drilling in the sand,
③ so that the brick surface with a hydrophobic,
④ through the anti-moisture absorption, so that the fluorescent coating on the surface has a high resistance;
⑤ improve the column of liquid organic glass surface relative to the moisture absorption