News_第62页_Novista Chemicals - The pioneer of Flame retardant

22 2019-10
Flame Retardant Types Flame Retardant are substances that can be chemically inserted into the polymer molecule or be physically blended in polymers after polymerization to suppress, reduce, delay or modify the propagation of a flame. There are several classes of flame retardants; Halogenated Hydrocarbons (Chlorine and Bromine containing Compounds and reactive flame retardants), Inorganic flame retard…
12 2019-10
Phosphorus Flame Retardants Phosphorus FR additive benefits:  Can be both vapor phase and condensed phase flame retardants. Can be very effective at lowering heat release rate at low loadings of additive. Phosphorus FR additive drawbacks:
28 2019-9
What types of products use flame retardants?  While an ever-evolving list of new products—from hair dryers and small appliances to laptops and flat-screen televisions—is incorporated into our homes, offices and commercial environments, we seldom think about how the products are made.  Flame retardants provide consumers with a critical layer of fire protection and are vital to reducing the risks associated with fire.T…
21 2019-9
Intumescent Flame Retardants Intumescent FR additive benefits:  Very robust fire safety and flame resistance performance. One of the few systems that can use select polymer structures to actively participate in flammability reduction. Intumescent FR additive drawbacks:
7 2019-9
Halogenated Flame Retardants Halogenated FR additive benefits:  Very effective at lowering flammability in a wide range of polymers. Provide good fire performance even after repeated recycling of polymer + FR resin.Halogenated FR additive drawbacks:
26 2019-8
General Flame Retardant Classes 1. Gas Phase Flame Retardants (ex. Halogen, Phosphorus)- Reduce heat in gas phase from combustion by scavenging reactive free radicals, thus inhibiting combustion.2. Endothermic Flame Retardants (ex. Metal Hydroxides, Carbonates)- Function in Gas Phase and Condensed Phase by releasing nonflammable gases (H2O, CO2) which dilutes the fuel and cools the polymer.3. Char Forming Fla…
19 2019-8
How do flame retardants work? Flame retardants are added to different materials or applied as a treatment to materials (e.g., textiles, plastics) to prevent fires from starting, limit the spread of fire and minimize fire damage.  Some flame retardants work effectively on their own; others act as “synergists” to increase the fire protective benefits of other flame retardants.
17 2019-8
What are the most common elements in flame retardants? Bromine, phosphorus, nitrogen and chlorine are commonly used in flame retardants.  Inorganic compounds are also used in flame retardants, either alone or as part of a flame retardant system in conjunction with bromine,