What are the current mainstream flame retardants

At present, there are mainly organic flame retardants and inorganic flame retardants, halogen flame retardants (organic chlorides and organic bromides) and non-halogen. Organic flame retardants are represented by bromine, phosphorus and nitrogen, nitrogen and red phosphorus and compounds, and inorganic flame retardants are mainly antimony trioxide, magnesium hydroxide, aluminum hydroxide, silica and other flame retardant systems.

 

At present, there are mainly organic flame retardants and inorganic flame retardants, halogen flame retardants (organic chlorides and organic bromides) and non-halogen. Organic flame retardants are represented by bromine, phosphorus and nitrogen, nitrogen and red phosphorus and compounds, and inorganic flame retardants are mainly antimony trioxide, magnesium hydroxide, aluminum hydroxide, silica and other flame retardant systems.

Now give a general introduction:

★1. Antimony trioxide: high purity ≥ 99.8, ultrafine 0.4-1.1um, whiteness above 98 (added flame retardant synergist)

★2. tri (2,3-dibromopropyl) isocyanurate: TBC, total bromine content: ≥ 64.5, melting point range: 100~110 ℃ (additive non-toxic flame retardant)

★3. Melamine cyanurate: MCA, content: ≥ 99%, decomposition temperature: 440~450 ℃ (reactive non-toxic flame retardant)

★4. Tribromophenol: TBP, content: ≥ 98.5, melting point: ≥ 92 ℃ (reactive flame retardant)

★5. Aluminum tripolyphosphate: ATP, APW, APZ, used in the production of intumescent fire retardant coatings, heavy anti-corrosion coatings (added non-toxic flame retardant)

★6. Tetrabromobisphenol A:TBBA, bromine content: ≥ 58.5, melting point: 180 ℃ (adding and reacting flame retardant)

★6. Tetrabromobthalic anhydride: TBPA (additive flame retardant)

★7. pentabromotoluene: PBT(FR-5), total bromine content:>80%, melting point: 275~284 ℃ (added flame retardant)

★8. Pentabrominated diphenyl ether: PBDPO, bromine content: 62-70 (added flame retardant)

★9. hexabromocyclododecane: HBCD (CD-75P), total bromine content:>73.5%, melting point: 185~195 ℃ (additive flame retardant)

★10. Octabromo ether: [tetrabromobisphenol A bis (2,3-dibromopropyl ether)] bromine content: ≥ 67%, melting point: ≥ 105 ℃ (additive flame retardant)

★11. Decabromodiphenyl ether: DBDPO, bromine content: 82-83%, melting point: 300-310 ℃, Great Lakes of the United States: DE-83R, domestic: superior and first-class products (added flame retardant)

★12. tricresyl phosphate: TCP, (added flame retardant)

★13. Tris (2-chloropropyl) phosphate: TCPP (additive flame retardant)

★14. Tris (2.3-dichloropropyl) phosphate: TDCP (additive flame retardant)

★15. Tris (β-chloroethyl) phosphate: TCEP (additive flame retardant)

★16. Triphenyl phosphite: TPP (additive flame retardant)

★17. Methyl phosphonate dimethyl ester: DMMP (added non-toxic flame retardant)

★18. Composite phosphorus flame retardant: FR-P, decomposition temperature: 250-280 ℃ (added non-toxic flame retardant)

★19. Halogenated bisphosphate compound: FR-505, decomposition temperature:>200 ℃ (soft polyether block foam, molded foam flame retardant)

★20. Mixed reactive flame retardant: FR-780 (reactive sponge flame retardant)

★21. Stannous zincate: T-9 (catalyst for polyurethane foaming, etc.)

★22. ammonium polyphosphate: APP, P2O5 content: 72-73%, n content: 14-15%, decomposition temperature:>270 ℃, five different polymerization degree specifications (additive non-toxic flame retardant)

★23. Water-soluble crystalline flame retardant: PN (additive non-toxic flame retardant)

★24. High-efficiency composite flame retardant: FR-A, content: ≥ 99%, decomposition temperature: 440~450 ℃ (added non-toxic flame retardant)

★25. Aluminum hydroxide: ordinary, active, content: ≥ 99% (additive non-toxic flame retardant)

★26. Magnesium hydroxide: chemical, mining, ordinary, active, content: ≥ 63-98.5% (added non-toxic flame retardant)

★27. Chlorinated paraffin: 52#, 70# (added non-toxic flame retardant)

★28. Chlorinated polyethylene: CPE (added non-toxic flame retardant)

★29. Zinc borate 3.5 water: zinc content: 37.0-40.0%, boron content: 45.0-48.0%(added non-toxic flame retardant synergist)

★30. aluminum diethylphosphinate: ADP, phosphorus content: 23%-24%, decomposition temperature:>350 ℃ (additive flame retardant)

★31. Hollow microbeads, hollow ceramic beads, floating beads: flame retardant product filling modifier (various specifications particle size)

Real-time information

Zhongke Flame Retardant Organization Watches 20 Closing Ceremonies

On the morning of October 22, 2022, members of Zhongke Flame Retardant New Materials Co., Ltd. watched the closing ceremony of the 20th Congress under the leadership of General Manager Wang Ligui.

What are the reasons for the failure of flame retardant after adding aluminum hydroxide flame retardant?

Everyone knows that there are two common flame retardants. Today we are going to talk about only one of them. Aluminum hydroxide flame retardant is an environmentally friendly halogen-free flame retardant, which can be widely used in fabrics, wood, plastics, and rubber., Polyurethane and other industries have ideal flame retardant effect. In the process of industrial application, it is found that flame retardant failure occurs when aluminum hydroxide flame retardant is added. The following are the reasons for the failure of aluminum hydroxide flame retardant, how to prevent it, how to deal with the operation, and restore the original function.

As a flame retardant, magnesium hydroxide also need to improve what aspects?

When it comes to flame retardants, everyone is familiar with them. Although we usually have less contact with them, we can know what they are used for from the name. Have to talk about magnesium hydroxide, we all know that its main presentation state is a granular, at present, the market sales of magnesium hydroxide particle size is larger, part of the commodity particle size up to tens of microns, immediately used as a flame retardant, poor dispersion, the physical properties of raw materials greater harm. In industrial production, physical grinding methods are generally used to reduce the particle size to 1 micron. The surface of magnesium hydroxide has high polarity and is easy to agglomerate. As the compatibility of refractory materials and polymer substrates, it not only reduces its flame retardant grade, but also causes more serious harm to the physical properties of raw materials.