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GENIOSIL® GF 9

N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane



特性

Thanks to the specific reactivity of the 2-aminoethylaminopropyl structure, using GENIOSIL® GF 9 as an adhesion promoter in glass-fiber reinforced or filler-modified plastics reduces the filler's sedimentation tendency and improves dispersibility and numerous mechanical properties (e.g. flexural strength, tensile strength, modulus of elasticity) of the composites. The use of GENIOSIL® GF 9 in these materials also results in a markedly improved resistance to water (vapor) and corrosion. Electrical properties, such as volume resistivity and the dielectric constant, are also positively influenced
Due to the nature of the amino group, this substance reacts as a strong base. The silane hydrolyzes autocatalytically in the presence of moisture (methanol is released) to form silanols, which can subsequently react with themselves to produce siloxanes or can bind to inorganic substrates. t´s a clear, colorless to light yello liquid with a characteristic amine odor. As a typical amine, GENIOSIL® GF 9 can also interact with numerous organic polymers and thus function as a molecular bridge between organic and inorganic substrates.

免责声明

所提供之所有信息均基于我们当前所掌握的知识。尽管如此,我们不对其作任何担保、也不承担任何责任,并且保留在任何时候进行技术变更的权利。购买方应在预测试中对所提供之信息以及产品在既定应用中的适应性进行检查。任何时候都必须以合同条款与条件为准。此外,本免责申明还适用于与第三方权利有关之事宜,尤其是在德国境外。


1. General processing information


GENIOSIL® GF 9 is highly miscible with organic sol-vents, such as ethers and hydrocarbons.
Mixing with ketones results in imine formation, while mixing with alcohols other than methanol leads to an autocatalytic exchange of alkoxy groups until the system reaches thermodynamic equilibrium.
GENIOSIL® GF 9 demonstrates typical amine behavior when exposed to acids, epoxides or isocyanates. GENIOSIL® GF 9 is highly soluble in neutral water.
Caution: due to the enthalpy of solution, mixing GENIOSIL® GF 9 with water is exothermic. It is recommended that GENIOSIL® GF 9 is added to water, not vice versa, while stirring.
A 2 wt % solution of GENIOSIL® GF 9 in water has a pH of 10 -11 and remains stable for several weeks. Due to the reactive nature of GENIOSIL® GF 9, contact with moisture must be avoided during prevent undesired hydrolysis.


2. GENIOSIL® GF 9 in glass-fiber reinforced or mineral-filled polymers


Fillers are treated either with pure GENIOSIL® GF 9 or a solution thereof. It may be necessary to pretreat the substrate with water.
The modified filler is preferably bonded to the organic material, e.g. an epoxy resin, by mixing it with a standard amine curing agent.
In an alternative procedure referred to as "blending", GENIOSIL® GF 9 is added directly to the polymer - either before the organic materials is compounded with the filler or at the same time.
A prerequisite for the blending process is that GENIOSIL® GF 9 and the polymer are compatible and that the resin and GENIOSIL® GF 9 do not react prematurely.


3. GENIOSIL® GF 9 as a surface modifier


Used as a primer, GENIOSIL® GF 9 is applied as an aqueous or organic solution to an inorganic substrate (e.g. metal or glass surfaces). Once GENIOSIL® GF 9 has dried and bonded to the surface, an organic coating may be applied using a standard technique (e.g. spraying or knife coating).


GENIOSIL® GF 9 is mainly used as a surface modifier for glass fibers, glass-fiber fabrics, fillers (e.g. glass or mineral wool, mica, talc, wollastonite, kaolin, christobalite, metal oxides) and pigments used in various plastics, including epoxy resins, polyamides, polyacrylates, polyurethanes, ethylene/vinyl acetate copolymers and many others.
Other important applications include its uses as an adhesion promoter in polysulfides and phenolic resins for abrasives and insulating materials and as a primer for sealants, adhesives and coatings.

储存

The 'Best use before end' date of each batch is shown on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

销售和支持

Wacker Chemicals (China) Co.,Ltd.
Caohejing Hi-Tech Park
200233 Shanghai
中国
+86  21  6130-2000 (电话)
+86 21 6130-2500  (传真)
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