Silane modified polymer - a safe and environmentally friendly adhesive raw material under high dynamic loads

Adhesives are mainly used as structural bonding and sealing in the field of road traffic and rail transportation, and the key technology is elastic bonding, so the materials used to withstand high dynamic stresses and waterproof film must be both highly elastic and tear resistant. In addition, the closed environment of the vehicle requires the vehicle adhesive to play low, does not contain toxic and harmful substances, and must have good weather resistance, UV resistance. At present, polyurethane adhesive has always been the preferred material for high dynamic stress bonding applications, but polyurethane products in VOC content environmental protection needs to be improved.
is committed to the research and development of vehicle adhesives WACKER chemicals introduced silane modified polymer formulations without isocyanates and organic solvents, if WACKER's patented α-silane modified technology, these formulations can also be free of organotin catalysts. This finished product meets current and future environmental, health and safety (EHS) requirements.
, the new silane modified polymer GENIOSIL® XT series can be used to make shear-resistant materials with high extrusion strength, which can completely replace traditional epoxy resin or polyurethane system products.
high-
GENIOSIL® XT products can be used to make shear-resistant materials with high stretch strength, achieving the first perfect combination of high elasticity and high tear strength.
in the field of adhesives for vehicles, shear strength, fracture elongation and tear resistance have always been hard indicators to test the mechanical properties of products. GENIOSIL® XT 55 products have shear strength of up to 5N/mm2, break elongation of approximately 700%, and tear resistance of up to 16N/mm (measured according to DIN ISO 34-1 standard).
safety and environmental protection
GENIOSIL® XT products can be cured quickly without the addition of organo tin catalysts, and the product does not contain any free isocyanates, lower VOC content, more environmentally friendly.
is stable and
GENIOSIL® XT-made products have excellent storage stability, are not volatile, are insensitive to environmental temperature and humidity, and have excellent UV resistance.
As lightweighting, environmental protection and construction convenience become the mainstream direction of future rail transportation and automotive development, and health and safety regulations related to adhesives and sealants become increasingly stringent, the demand for environmentally friendly, safe and durable adhesives continues to grow. As a result, new, safer, greener, more convenient and more durable adhesives have become the future trend.
's GENIOSIL®XT technology not only offers these typical benefits, but also has other unique properties that provide specialized solutions for the current and future vehicle adhesive market.
bonding range is wider
is compatible with other GENIOSIL®silane modified polymers and can be mixed in any proportion to adjust the properties of the substrate system to meet specific application needs and is suitable for most vehicles.
no solvents, easy to process
Thanks to its low viscosity, GENIOSIL®XT products are easy to process and do not require any solvents, as well as excellent processing performance at low temperatures. Manufacturers can choose whether to add plasticizers or fillers based on actual needs, providing an effective way for finished product manufacturers to produce high-fill and cost-effective end products.the
design space is freer
products formulated with GENIOSIL®XT are coatable and can be designed with different viscosity according to different use needs, different aesthetic properties according to different use locations, and more convenient formulations can be designed and constructed, opening up a whole new design space for designers.
the GENIOSIL ® XT series of products have such excellent performance?
GENIOSIL ® XT is a silane-modified polymer that combines the superior properties of silicones and polyurethanes. Low viscosity and unit volume contain a large amount of methyl silica, so that the product under the effect of air moisture can occur cross-linking and curing reaction, forming a solid mesh structure, bonding glass and body will be more safe and reliable. Therefore, silane modified polymers can be made with high elasticity, good coating properties, high mechanical strength adhesives, and these properties were previously thought to be only achieved with polyurethane.
the unique properties of geniosIL® XT configurations are based on WACKER's unique α-silane modified technology, in addition to the properties of traditional silane-modified polymers.
From the α-silane modified technology principle, the silane modified polymer contains the sealing end silane parts coupled with the main chain of organic polymers, its unique "α-effect" can achieve rapid curing, that is, α-silane sealed polymer silicon atoms and amino methamphetamine group of nitrogen atoms closest, accelerate cross-linking reaction, so there is no need to add tin catalyst to achieve rapid curing.
WACKER GENIOSIL®XT products are not only based on the current rail transit adhesive market application needs, with traditional adhesives can not match the advantages, but also in line with the future development trend of the adhesive industry, very suitable for high-strength bonding and must continue to withstand high dynamic load applications.
one of the world's largest silicone producers, WACKER is committed to continuously developing innovative production processes and product solutions to proactively address the technical challenges of industry changes and lead the market.
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