Technical Data Sheet - Hunan Chemical BV
TDS Hunan Chemical BV Page 2 of 3 1. Excellent Flame Retardancy 2. High Phosphorous Content: 13.4% 3. Nitrogen Content: 6% 4. Halogen-free, Antimony-free 5. Ultra-Hydrophobic & Predominant Hydrolysis Resistance 6. Less Electrical Degradation 7. Soluble in Ketonic and Aromatic Solvents 8. Nonvolatile and High Stability at High Temperature
Flame Retardant DOPO - Hunan Chemical BV
CAS number 35948-25-5. Flame Retardant DOPO. Product name: DOPO Product Form: Solid Chemical name: 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide
Flame retardant performance of a carbon source containing
The combination of gas‐phase and condensed‐phase action will contribute to high quality flame retardant. A novel 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO)‐based flame retardant (DOPO‐DOPC), which contains carbon source was synthesized in favor of conducting the effect of gas‐phase as well as promoting the char formation in condensed‐phase.
Sulfathiazole derivative with phosphaphenanthrene group
As a prominent intermediate of phosphorous flame retardants, 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) has received a great deal of attention because of its high thermal stability, oxidation resistance, flame-retardant efficiency and multiple structural diversification by functionalization [8,9].
Synthesis of a novel flame retardant based on DOPO
An intumescent flame retardant (DOPO-DAM) containing phosphorus and nitrogen was synthesized viaa two-step process and then, it was incorporated into waterborne polyurethane to serve as a reactive flame retardant for preparing flame-retarded WPU (FR-WPU).
- What is Dopo flame retardant?
- 0.3 max. DOPO is a kind of reactive, halogen free flame retardant additive with excellent heat stability and oxidation resistance. As phosphorous organic its performance are chemically linked to resin matrix and is better than other phosphate esters in flame retarding due to the P-C bond.
- What are reactive Dopo based flame retardants for epoxy resins?
- This review focuses on recent advances in reactive DOPO–based flame retardants for epoxy resins, including reactive monomers, curing agents and hybrid structures. There are also highlighted fire retardant mechanisms of the DOPO derivatives and thermal and mechanical features of the epoxy systems.
- Who is Hunan chemical BV?
- We are Hunan Chemical BV and dedicated to the chemical industry. We supply additives to plastic and rubber industry and coating industry. We also supply intermediates to pharmaceutical industry and universal chemicals to the chemical industry. We satisfy our customers with our global ability and we offer high quality with competition.
- How does Dopo exhibit a flame retardant mechanism?
- DOPO exhibits mainly gas phase flame retardant mechanism through the release of free radical scavangers generated during material combustion. It may also exhibit condensed phase by dehydration to form carbonaceous protective layers .
- Can disubstituted p -hydroquinone be used as a flame retardant?
- Proposed mechanism for synthesis of disubstituted p -hydroquinone. Compound 2 is a reactive monomer, Owing to the diol functionality. Therefore, it could be incorporated into the molecular backbone of polymers for flame retardant application.
- Can Amine hardeners be used as flame retadants for epoxy resins?
- A series of DOPO–based amine hardeners were also used as flame retadants for epoxy resins. However, a high content of aromatic moieties significantly decreased their solubility in the epoxy resins, hence greatly limiting their use in composites [12, 13].
