Q&A for Flame Retardant Cables.

Q&A for Flame Retardant Cables.

Cable flame retardant is a widely used material in the field of electrical engineering, which has an important role in stopping the spread of fire. With the continuous development of the power system and the expansion of the application field, the requirements for the safety performance of cables are getting higher and higher. Cable flame retardant is characterized by high temperature resistance, fire resistance, low smoke and non-toxicity, etc. It can effectively stop the spread of flame and reduce the release of smoke, so as to reduce the danger of fire. This article will answer some common questions about cable flame retardants to help you better understand the knowledge in this field.

1. Wire and cable flame retardant, flame retardant components have what?

Flame retardants are mainly organic and inorganic, halogen and halogen-free. Organic is to bromine, nitrogen and red phosphorus and compounds represented by some of the flame retardants, inorganic is mainly antimony trioxide, magnesium hydroxide, aluminum hydroxide, silicon and other flame retardant systems. Generally speaking, organic flame retardant has good affinity in plastics, bromine flame retardant in the traditional organic flame retardant system occupies the absolute advantage. However, because of environmental issues, bromine antimony flame retardants are gradually replaced by other non-halogen flame retardants, such as Yinsu's red phosphorus flame retardant, organophosphorus flame retardant and so on.

2. Why aluminum hydroxide can be used as flame retardant?

Aluminum hydroxide can be used as an effective flame retardant because it releases water when heated and absorbs heat from the surrounding environment.

Nowadays, fire-resistant flame retardants are used in electronics, electrical appliances, cables and other materials, and have gradually replaced traditional flame retardants. Aluminum oxide is catalyzed to slowly decompose hydrogen chloride, generating hydrogen atoms. Flame retardants are mainly organic and inorganic, halogen and non-halogen. Organic is to bromine, nitrogen and red phosphorus and compounds represented by some of the flame retardants, inorganic is mainly antimony trioxide, magnesium hydroxide, aluminum hydroxide, silicon and other flame retardant systems.

Generally speaking, organic flame retardant has good affinity in plastics, bromine flame retardant in the traditional organic flame retardant system occupies the absolute advantage. However, because of environmental issues, bromine antimony flame retardants are gradually replaced by other halogen-free flame retardants, such as Yinsu's red phosphorus flame retardant, organophosphorus flame retardant and so on.

3. What is the development trend of flame retardants?

Flame retardants are functional additives that impart flame retardancy to flammable polymers and are mainly designed for the flame retardancy of polymer materials.

Magnesium hydroxide, aluminum hydroxide, the performance of the product affects the flame retardancy of the wire, the choice of filler and flame retardant should depend on the specific circumstances.

Selection of Flame Retardant.

A. Selection of viscous materials, generally recommended in accordance with the common standards of flame retardant.

B. Selection of heat stabilizers, generally required in bonding, fillers, plasticizers and other materials, to choose for flame retardants, toughening agents and other substances.

C. The choice of flame retardants, common: organic acids, organic acids, organic alkalis and other halogenated acids, for the choice of raw materials in the addition of plasticizers, will increase the impact resistance of flame retardants, thereby improving the flame retardant properties of wires.

4. Is it possible to use halogen-free flame retardant for cable flame retardant?

Yes, now the halogen-free flame retardant market trend, Yinsu company specializes in the development of coated red phosphorus flame retardant, organic phosphorus flame retardant, etc., particle size is very small, the cable surface without pockmarks, low smoke density, is applied to the cable of the low-smoke halogen-free flame retardant. At present, the use of a wide range, received a lot of praise from customers.

5. What kinds of flame retardants are commonly used?

Flame retardant according to the type of element is divided into: halogen, phosphorus, halogen-phosphorus, nitrogen, silicon, aluminum-magnesium system, etc. Halogen flame retardant (bromine-based) is currently the largest production of one of the most widely used flame retardants.

6. High temperature cable must be flame retardant?

High temperature refers to the decomposition temperature of the material is relatively high, its flame retardancy has a certain impact; and flame retardant cable in addition to PVC itself is flame retardant, most of them are added to the effect of flame retardants.

7. What industry is the production of flame retardants?

Flame retardant is a class of additives that can prevent the ignition of polymer materials or inhibit flame propagation. Flame retardant is mixed in the composite material processing inside the composite material, easy to use, adapt to the surface of the large but have an impact on the performance of the composite material.

8. Application of PE flame retardant masterbatch

PE flame retardant masterbatch is nano-sized flame retardant masterbatch with good processing fluidity, excellent thermal stability and light stability, no need to add antimony trioxide to achieve excellent flame retardant effect.

9. What are the flame retardants?

They are also called flame retardants, fire retardants or fireproofing agents: they are functional additives that make flammable polymers flame retardant; they are categorized into additive flame retardants and reactive flame retardants according to the way of application.

10. What is the principle of flame retardancy in cables?

Flame retardant in general, is the sheath add flame retardant, and then is the filler materials and winding materials contain flame retardant components. If it is fire-resistant, it is a layer of fire-resistant material wrapped around the conductor.

11. How to distinguish between flame retardant and non-flame retardant wires?

Whether the wire is flame retardant or not, it depends on whether the sheath and insulation layer of the cable are added with flame retardant or not.

12. What are the materials of flame retardant cables?

The higher the oxygen index of the materials used in flame retardant cables, the better the flame retardant performance, but with the increase of oxygen index, it is necessary to lose part of the other. Flame-retardant cable materials are polyvinyl chloride, neoprene, chlorosulfonated polyethylene, ethylene propylene rubber and other materials.

13. Are cables combustible?

Most cables are combustible. But now the flame retardant cables, fire-resistant cables and mineral insulated cables are flame retardant or non-combustible, of which flame retardant cables for the insulating layer of flame retardant additives, fire when there is a bright flame, fire extinguished.