Adipic Dihydrazide (ADH), with the CAS number 1071 - 93 - 8, is a white crystalline powder. It has a molecular formula of C₆H₁₄N₄O₂ and a molecular weight of 174.2 g/mol. The melting point of Adipic Dihydrazide ranges from 180 - 182 °C. It is soluble in hot water and slightly soluble in cold water. This product is provided by our factory at the best price. With high - purity standards, it meets the requirements of various industrial applications.
Adipic Dihydrazide has a wide range of applications. In the coating industry, it is used as a cross - linking agent for water - based alkyd, epoxy, and acrylic resins. Cross - linking improves the hardness, chemical resistance, and durability of the coatings. It can also enhance the adhesion of the coating to the substrate, making it suitable for use in industrial equipment coatings, automotive coatings, and architectural coatings.
In the textile industry, Adipic Dihydrazide is utilized as a finishing agent. It can react with the carboxyl groups in the fabric to form a cross - linked structure, improving the wrinkle resistance and shrinkage resistance of the fabric. This makes the textile products more stable in shape and easier to care for.
Another important application is in the field of adhesives. It can react with isocyanate - terminated prepolymers to form high - performance adhesives. These adhesives have excellent bonding strength, heat resistance, and chemical resistance, and are widely used in woodworking, automotive assembly, and electronic component bonding.
When using Adipic Dihydrazide in the coating industry, first, it should be dissolved in a suitable solvent or dispersed in the coating resin system. The recommended dosage is usually 1% - 5% of the resin weight, depending on the specific requirements of the coating performance. The dissolution process should be carried out under gentle stirring at an appropriate temperature to ensure uniform dispersion.
In textile finishing, the fabric is immersed in a solution containing Adipic Dihydrazide and other additives. The concentration of Adipic Dihydrazide in the solution is typically 2% - 8%. After impregnation, the fabric is dried and cured at a certain temperature to complete the finishing process.
For adhesive applications, Adipic Dihydrazide is mixed with the isocyanate - terminated prepolymer according to the specified ratio. The mixing process should be carried out in a dry and well - ventilated environment to avoid side reactions caused by moisture. After mixing, the adhesive should be used within a certain pot life.
Case 1: A coating manufacturer was looking to improve the chemical resistance of their water - based acrylic coatings. They added 3% Adipic Dihydrazide to their coating formulation. After testing, the new coating showed significantly improved resistance to acids, alkalis, and solvents. The coating was applied to the surface of industrial containers, and it effectively protected the containers from corrosion for a long time, reducing maintenance costs and extending the service life of the containers.
Case 2: A textile factory wanted to enhance the wrinkle - resistant performance of their cotton fabrics. They used a finishing solution containing 5% Adipic Dihydrazide to treat the fabrics. After the treatment, the fabrics had excellent wrinkle - recovery properties. The ironing frequency of the clothing made from these fabrics was greatly reduced, which was well - received by consumers.
Case 3: An adhesive company needed to develop a high - strength adhesive for wood bonding. By using Adipic Dihydrazide as a cross - linking agent in their isocyanate - based adhesive formulation, they achieved a bonding strength that exceeded the industry standards. The adhesive was used in the production of high - quality wooden furniture, and it provided reliable bonding and long - term stability.
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