Factory Supply 3 - Aminopropyltriethoxysilane, also known as KH - 550, with CAS number 919 - 30 - 2, is a high - quality chemical product offered at a low price. This product belongs to the family of silane coupling agents. The molecular formula of 3 - Aminopropyltriethoxysilane is C₉H₂₃NO₃Si, and its molecular weight is approximately 221.37 g/mol.
It has a clear, colorless to slightly yellowish liquid appearance. The boiling point of this product is around 217 °C, and the density is about 0.942 g/cm³ at 25 °C. It has good solubility in many organic solvents such as ethanol, acetone, and benzene, but it is reactive with water and will hydrolyze in the presence of moisture.
3 - Aminopropyltriethoxysilane (KH - 550) has a wide range of applications in various industries. In the field of composite materials, it is used as a coupling agent to improve the adhesion between inorganic fillers (such as glass fiber, silica, and mica) and organic polymers (such as epoxy resin, phenolic resin, and polyester resin). This can significantly enhance the mechanical properties, such as tensile strength, flexural strength, and impact resistance of the composite materials. For example, in glass fiber - reinforced plastics, adding KH - 550 can improve the bonding between glass fibers and the resin matrix, resulting in better overall performance of the plastic products.
In the coating industry, it can be used as an additive to improve the adhesion of coatings to substrates, especially for metal and inorganic substrates. It can also enhance the corrosion resistance and weatherability of coatings. Additionally, in the rubber industry, KH - 550 can be used to improve the dispersion of fillers in rubber and the bonding between rubber and reinforcing materials, thus improving the physical and mechanical properties of rubber products.
When using 3 - Aminopropyltriethoxysilane, it should be stored in a cool, dry place, away from direct sunlight and sources of heat. It is important to avoid contact with water and moisture during storage and handling to prevent hydrolysis. Before using it as a coupling agent, the appropriate amount of KH - 550 should be determined according to the type and amount of fillers and polymers used. Usually, it can be diluted with an appropriate organic solvent before use to ensure uniform dispersion.
For surface treatment of fillers, the filler can be soaked in a solution containing KH - 550 for a certain period, and then dried to remove the solvent. When using it in the preparation of polymer composites, KH - 550 can be added during the mixing process of polymers and fillers. It should be noted that proper mixing conditions, such as temperature and mixing time, need to be controlled to ensure the full reaction of KH - 550 with the fillers and polymers.
Case 1: In a glass fiber - reinforced epoxy resin composite production line, the manufacturer used to face problems such as poor adhesion between glass fibers and epoxy resin, which led to low strength and delamination of the composite products. After adding 3 - Aminopropyltriethoxysilane (KH - 550) as a coupling agent, the adhesion between glass fibers and epoxy resin was significantly improved. The tensile strength of the composite products increased by about 30%, and the flexural strength increased by about 25%. Moreover, the products showed better resistance to environmental factors, and the service life was extended.
Case 2: A coating company applied KH - 550 to its metal coatings. Before using KH - 550, the coatings had poor adhesion to metal substrates, and the corrosion resistance was not satisfactory. After adding an appropriate amount of KH - 550, the adhesion of the coatings to metal substrates was greatly enhanced. The coatings passed the salt - spray test for a much longer time, indicating a significant improvement in corrosion resistance. The gloss and durability of the coatings also improved, which increased the market competitiveness of the coating products.
If you have any questions or needs regarding Factory Supply 3 - Aminopropyltriethoxysilane / KH - 550, please feel free to contact us. Our email is info@vivalr.com, and our phone number is (86) 15866781826. We are committed to providing you with high - quality products and professional services.
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