DOPO Flame Retardant for Epoxy & CCL CAS 35948-25-5, 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide High Purity
DOPO flame retardant (CAS 35948-25-5), chemical name 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, is high purity reactive halogen-free organophosphorus flame retardant. Its reactive P-H bond can react with epoxy resin and be chemically incorporated into cured polymer network. No migration or blooming after curing. This high purity grade reduces impurities, improving thermal stability and dielectric performance, ideal for high-end epoxy and copper clad laminate production.
Product DetailsChemical IdentityProduct Name: 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, DOPO CAS No.: 35948-25-5 Chemical Type: Reactive halogen-free organophosphorus compound Physical Form: White crystalline powder Core Feature: High purity for epoxy resin and CCL
Key Performance & TDSHigh purity DOPO features low impurity content, minimizing negative impacts on dielectric property and thermal performance of CCL substrates. The active P-H functional group covalently bonds to epoxy molecular chains during curing, delivering permanent flame retardancy without additive leaching. It endows epoxy systems with high glass transition temperature, excellent thermal stability and low smoke generation upon combustion. Halogen-free composition avoids corrosive halogen gas under fire. It helps copper clad laminate achieve UL94 V-0 flame rating while maintaining reliable insulation performance required for electronic substrates.
Applications
- High purity epoxy resin formulation for copper clad laminate
- Halogen-free prepreg resin for PCB base material
- Thermosetting epoxy systems for electronic substrates
- High-performance CCL requiring low impurity raw materials
- Reactive flame retardant modification of electronic epoxy resin
ComplianceThis product complies with RoHS and REACH regulations, suitable for export electronic base material manufacturing.
Why Choose JSYWe supply factory direct high purity DOPO flame retardant for epoxy and CCL. Stable batch purity, competitive price, flexible MOQ and professional formulation technical support for copper clad laminate producers.
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