Vinylphosphonic acid with the CAS number 1746-03-8 is a high - quality chemical product offered at a low price. The product is characterized by its vinyl functional group attached to a phosphonic acid moiety. This unique molecular structure endows it with special chemical and physical properties.
Physically, vinylphosphonic acid is usually a colorless to light - yellow liquid. It has a certain solubility in water and common organic solvents, which makes it convenient for various chemical reactions and applications. In terms of purity, our high - quality product can reach a purity level of over 98%, ensuring its high - performance in different scenarios.
Vinylphosphonic acid finds wide applications in multiple industries. In the field of polymer materials, it can be used as a monomer for the synthesis of specialty polymers. For example, when copolymerized with other monomers, it can introduce phosphonic acid groups into the polymer backbone, enhancing the polymer's flame - retardant properties, adhesion, and chemical resistance.
In the coatings industry, vinylphosphonic acid can be used as an additive to improve the adhesion of coatings to metal substrates. The phosphonic acid groups can form strong chemical bonds with metal surfaces, preventing the coating from peeling off and enhancing the overall durability of the coating.
In water treatment, it can act as a scale inhibitor. The phosphonic acid groups can chelate metal ions in water, preventing the formation of scale on pipes and equipment surfaces, thereby improving the efficiency and lifespan of water - using systems.
When using vinylphosphonic acid, appropriate safety measures should be taken. It is recommended to wear protective gloves, goggles, and a lab coat. The product should be stored in a cool, dry, and well - ventilated place, away from sources of heat and ignition.
In chemical reactions, the dosage of vinylphosphonic acid should be accurately controlled according to the reaction requirements. Usually, it needs to be added slowly under stirring conditions to ensure uniform mixing and smooth reaction. For example, in copolymerization reactions, the feeding rate and sequence of vinylphosphonic acid and other monomers need to be carefully designed to obtain polymers with desired properties.
When using it as an additive in coatings or water treatment, the appropriate amount should be determined based on the specific formulation or water quality conditions. It can be added directly during the production process, and thorough mixing is required to ensure its uniform distribution.
Case 1: Polymer Synthesis
A research group was synthesizing a new type of flame - retardant polymer. They copolymerized vinylphosphonic acid with styrene and acrylonitrile. By adjusting the molar ratio of vinylphosphonic acid, they found that when the content of vinylphosphonic acid reached 10%, the limiting oxygen index of the resulting polymer increased from 18% (for the pure styrene - acrylonitrile copolymer) to 26%, indicating significantly improved flame - retardant performance. The resulting polymer was used in the production of electronic device casings, effectively reducing the fire risk.
Case 2: Coating Adhesion Improvement
A coating company added vinylphosphonic acid to their epoxy - based metal coatings. After testing, they found that the adhesion of the coating to steel substrates increased from 3 MPa (without vinylphosphonic acid) to 7 MPa. This improvement made the coating more suitable for outdoor and high - humidity environments, and the products coated with this improved coating were widely used in bridge and shipbuilding industries.
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