The product is Factory Supply Hexahydrophthalic anhydride (HHPA) with CAS number 85 - 42 - 7. It is supplied at the best price. Hexahydrophthalic anhydride is a white solid at room temperature. Its molecular formula is C₈H₁₀O₃, and the molecular weight is approximately 154.16 g/mol. It has a melting point in the range of 32 - 34 °C and a boiling point around 255 °C. This chemical is moderately soluble in water and is miscible with many organic solvents such as acetone, ethyl acetate, and toluene. It has a relatively low vapor pressure, which means it has low volatility at normal temperatures.
Hexahydrophthalic anhydride has a wide range of applications. In the field of epoxy resin curing, it is one of the most important curing agents. When used in epoxy resin systems, it can significantly improve the mechanical properties of the cured resin, such as hardness, tensile strength, and heat resistance. The cured epoxy resins are widely used in the manufacturing of high - performance coatings, electrical insulation materials, and composite materials. In the paint industry, HHPA - cured epoxy coatings provide excellent chemical resistance, weather resistance, and adhesion, making them suitable for protecting metal surfaces in harsh environments. In the production of electrical insulation materials, the high dielectric strength and low water absorption of HHPA - cured epoxy resins ensure the stable operation of electrical equipment. Additionally, HHPA is also used in the synthesis of various plasticizers, which can enhance the flexibility and processability of plastics.
When using Factory Supply Hexahydrophthalic anhydride (HHPA) as an epoxy resin curing agent, proper safety measures should be taken. First, the operator should wear appropriate personal protective equipment, including gloves, goggles, and a mask. When handling HHPA, it should be stored in a cool, dry, and well - ventilated place to prevent it from absorbing moisture. In the process of epoxy resin formulation, the ratio of HHPA to epoxy resin needs to be accurately calculated according to the specific requirements of the application. Generally, the ratio is determined by the equivalent ratio of the anhydride group in HHPA to the epoxy group in the epoxy resin. After mixing HHPA with the epoxy resin, the mixture should be stirred evenly to ensure a uniform reaction. The curing process usually requires a certain temperature and time. Low - temperature curing can be carried out at around 60 - 80 °C for several hours, while high - temperature curing can reach 120 - 150 °C for a shorter time. However, the exact curing conditions depend on the specific type of epoxy resin and the desired performance of the final product.
Case 1: A shipbuilding company used HHPA - cured epoxy coatings to protect the hull of a large - scale cargo ship. The HHPA - cured epoxy coatings showed excellent corrosion resistance in the harsh marine environment. After one - year exposure to seawater, the coatings still maintained good adhesion and integrity, and there was no obvious corrosion on the metal surface of the hull. This not only extended the service life of the ship but also reduced the maintenance cost.
Case 2: An electrical equipment manufacturer used HHPA - cured epoxy resins as insulation materials for high - voltage transformers. The high dielectric strength and low water absorption of the HHPA - cured epoxy resins ensured the stable operation of the transformers. During a long - term operation test, the transformers showed no electrical breakdown or insulation failure, which improved the reliability of the power grid.
If you have any questions or need more information about Factory Supply Hexahydrophthalic anhydride (HHPA) cas 85 - 42 - 7, please feel free to contact us. Our email is info@vivalr.com, and our phone number is (86) 15866781826.
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