The product, High Quality chimassorb 944 with CAS number 71878 - 19 - 8, is a highly - regarded hindered amine light stabilizer (HALS). This product is known for its excellent quality and comes at a very competitive price. Chimassorb 944 is a polymeric hindered amine light stabilizer that offers long - term thermal and light stability to various polymers.
It has a molecular formula of (C35H69N5O)n, and its average molecular weight is around 2000 - 5000. The product appears as a white to off - white powder. It has a melting point range of approximately 100 - 135°C. Chimassorb 944 is soluble in common organic solvents such as toluene, xylene, and cyclohexanone, but has low solubility in water.
High Quality chimassorb 944 is widely used in the polymer industry. It can be added to polyolefins (such as polyethylene and polypropylene), styrenic polymers (like polystyrene and ABS), and engineering plastics (such as polyamide and polyester).
In the case of polyolefins, it helps to prevent the degradation of the polymer chains caused by ultraviolet (UV) light and heat. This leads to improved color retention, reduced cracking, and extended service life of the final plastic products. For example, in outdoor plastic furniture, the addition of chimassorb 944 can ensure that the furniture maintains its original appearance and mechanical properties for a longer time.
In coatings, it can be used to enhance the durability of the coating film. It protects the coating from yellowing, loss of gloss, and cracking due to long - term exposure to sunlight and other environmental factors. This is particularly important for automotive coatings, architectural coatings, and industrial coatings.
When using High Quality chimassorb 944, it is crucial to follow the recommended dosage. The typical dosage range is 0.1 - 1.5% by weight, depending on the polymer type, end - use application, and the expected level of protection.
For polymer processing, it can be added during the extrusion, injection molding, or blow - molding processes. It can be pre - mixed with the polymer pellets or added directly to the processing equipment. It is important to ensure uniform dispersion of the stabilizer in the polymer matrix to achieve the best results.
In coatings, it can be added during the formulation stage. It should be thoroughly mixed with other coating components to ensure homogeneous distribution in the coating system.
Case 1: A plastic manufacturing company was producing outdoor garbage bins made of polyethylene. Before using chimassorb 944, the bins would start to show signs of color fading, cracking, and loss of mechanical strength after about 6 months of outdoor exposure. After incorporating 0.8% by weight of chimassorb 944 into the polyethylene resin during the extrusion process, the bins maintained their original color and mechanical properties for over 2 years. This not only improved the product quality but also increased customer satisfaction and reduced the company's after - sales costs.
Case 2: An automotive coating manufacturer was facing issues with the durability of their top - coat. The coating would start to yellow and lose gloss after a few months of exposure to sunlight. By adding 0.5% by weight of chimassorb 944 to the coating formulation, the yellowing was significantly reduced, and the gloss retention was improved. This led to an increase in the market competitiveness of their automotive coatings.
If you have any questions about High Quality chimassorb 944 cas 71878 - 19 - 8, please feel free to contact us. Our email address is info@vivalr.com, and our phone number is (86) 15866781826.
Este es William, CEO de Zhishang Chemical Co., Ltd.
Le invitamos a visitar nuestra fábrica. Como el fabricante de productos químicos superior, nos hemos estado esforzando para la calidad del producto, la innovación, el R&D, y el servicio de atención al cliente por los últimos 7 años. En los próximos 10 años o incluso más, nos comprometemos a convertirnos en el proveedor de productos químicos más fiable del mundo, creando una marca internacional conocida en la que confíen los clientes, con el espíritu de "un metro de ancho, diez mil metros de profundidad", seguimos centrándonos en la investigación y el desarrollo de productos, seguimos centrándonos en el servicio al cliente, seguimos mejorando el sistema de servicio de la cadena de suministro, para crear un equipo profesional de servicio de suministro de productos químicos, para lograr una cooperación a largo plazo en la que todos ganen. No dude en ponerse en contacto con nosotros si tiene alguna pregunta.
Spanish 
English (United States) 
English (Australia) 
Portuguese