When organic polymers are reinforced with glass fibers or minerals, the interface, or interphase region, between the polymer and the inorganic substrate is involved in a complex interplay of physical and chemical factors. These factors are related to adhesion, physical strength, coefficient of expansion, concentration gradients and retention of product properties. A very destructive force […]
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Organofunctional silane coupling agents function as adhesion promoters for PICA in a manner similar to the way they function as coupling agents for fiberglass and mineral-filled composites. In most cases the general conditions are similar, i.e., an organic polymer is to be bonded to an inorganic substrate. Bond failure mechanisms in PICA adhesion systems are […]
Modified silanes adhesives were developed and launched in Japan during the 80’s, due to the great advantage of these elastic adhesive compared to polyurethane adhesives, its use is highly increase both Europe and America markets. Modified silanes are one component adhesives which react and cure under the action of moisture, during its curing process […]
In this article we will learn that the silane coupling agent and silicon used in the polysulfide sealant. The polysulfide sealant has excellent oil and solvent resistance, low air permeability, good elasticity and superior mechanical properties, can achieve good bond strength to both metal and non-metal. The polysulfide sealant is an important adhesive in many […]
In this article we will learn how the silane coupling agent used in resin coated sand. In casting production, many natural and synthetic resins are used as the core sand binder, the process of strength building process is very interesting. At the begging, the liquid resin with catalyst were coated in sand surface and forming […]
Silicone rubber is composed by silicon-oxygen bond（-Si-O-）which has a big bond energy and bond angle, so silicone rubber has a good heat resistance, superior uv resistance, excellent weather resistance and outstanding flexibility and low temperature resistance. Therefore, silicone rubber is widely used in aerospace, military, medical equipment, rail transit, construction, electronics, automobile, electrical insulation and […]
From now, the application of adhesives has penetrated into various fields of the national economy. On many occasions, adhesives can effectively replace welding, riveting, screw-joint and many other mechanical connections. Practice has shown that this method has the effects of reducing costs, increasing strength, simplifying technology, saving energy and increasing economic efficiency. As the fast […]
The fiberglass composites were first discovered in the 1940s. When initially fabricated, these new composites were very strong, but their strength declined rapidly during aging. These weakening were caused by a loss of bond strength between the glass and resin. In seeking a solution, researchers found that organofunctional silanes-silicon chemicals that contain both organic and […]
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