News_第53页_Novista Chemicals - The pioneer of Flame retardant

13 2021-11
flame retardants in transportation industry The world is a much smaller place today thanks to modern modes of transportation. Decisions about vacation destinations or business travel now go beyond cities and states and encompass countries around the world. Travel, whether by car, train or airplane, is faster, safer, more affordable and much more comfortable than ever before. These improvements are largely due to the techn…
13 2021-11
The common flame retardant components of new energy vehicles Many parts of the car will use flame retardant materials, especially new energy vehicles, the application of flame retardant materials is more extensive. Especially in charging piles and battery parts, plastic parts are required to be flame retardant. Today, let's take a look at the common flame retardant materials and corresponding components on automobiles.Speaking of new ener…
11 2021-11
Replacement of lead based stabilizers with lead free stabilizers-3 The other very new and emerging category of heat stabilizers is organic stabilizers. They are being developed as effective, safer and more eco-friendly additives for PVC processing. The major component acting as primary stabilizer and lubricant is Calcium Stearate. Other than calcium stearate organic stabilizers are based on various organic compounds like alkyl/aryl phosphites, …
11 2021-11
Replacement of lead based stabilizers with lead free stabilizers-2 Besides Ca-Zn stabilizers, organotin mercaptide based stabilizers are another choice. These are generally available in liquid form, but nowadays powder form is also available with some manufacturers. organotin stabilizers are very popular for transparent applications and rigid applications in America. They offer outstanding color retention in plasticized and rigid PVC processing…
11 2021-11
Replacement of lead based stabilizers with lead free stabilizers-1 Lead based stabilizers are being used from the very beginning to stabilize rigid PVC across the world. The decomposition temperature of PVC is much lower than its processing temperature. Thus, the processing of PVC requires heat stabilizers that do not allow HCl molecules to leave the polymer chain and increases the decomposition temperature.Lead based heat stabilizers provide e…
4 2021-11
Role of PVC Heat Stabilizers Poly(vinyl chloride (PVC) is one of the most important commercial plastic and its compounds have a great diversity of applications and methods of processing. But, PVC is thermally unstable at processing temperatures.The amount and type of energy input varies considerably among the many different production methods and end-use applications of PVC. In fact, resin degradation start…
4 2021-11
Types of Heat Stabilizers for Vinyl Compounds There are several basic groups of heat and light stabilizers currently offered to the vinyl industry which include:Mixed MetalsOrganic acid salts (liquid and solid), consisting of any one or a combination of barium, calcium, cadmium (disappearing), and zinc. Typically, C8 to C18 straight chain or branched chain aliphatic carboxylic acids are used. Aromatic (alkyl benzoic) acids …
4 2021-11
Impact of PVC Ingredients on Heat Stabilizers Selection The best approach in most cases is to check heat stability and color retention of the formulation with and without these additives. It helps to pre-determine the extent of any potential problem.Vinyl ingredients which can have a potential impact on PVC heat stability are discussed below:Vinyl ResinsThe wide variety of PVC resins is probably the single greatest factor which expla…