GOYENCHEM-DOPO GYC Phosphorus Group Flame Retardant CAS No.35948-25-5

Description

Intro

GO YEN CHEMICAL INDUSTRIAL CO.,LTD.(GYC Group) as a largest flame retardant, functional additive and fine chemical manufacturer in Asia that accomplished with strong R & D team and comprehensive product line.  We stand on the side of customers, solve problems positively and raise the core value of product.  That is the reason why we can receive trust from customers as the reliable supplier and earn good reputation from our business partner worldwide.  
GOYENCHEM-DOPO is an new designed phosphorus halogen-free flame retardant which is mainly applied on epoxy resin for PCB, and various of thermosetting resin. Besides, GOYENCHEM- DOPO can be widely used in PCB circuit plates, electrical laminates, electronic equipment plastic, copper-lined laminate., etc.
By using GOYENCHEM-DOPO, products can reach UL94-VO flame retardant standard with 2% phosphorus content in epoxy resin.  GOYENCHEM-DOPO can be easily solute in methanol, ethanol, isopropanol, chloroform, DMF,DMSO.  
It can easily absorb moisture in the open air and can be restored by heating without affecting the original properties.
Comparing with tetrabromo bisphenol A (TBBA), the  GOYENCHEM-DOPO and pendant phosphorus group form better and stronger structure that provide better environment of flame retardancy, higher glass transition temperature, thermal stability and even the effect of low smoke.

 

 

Properties

Grade	GOYENCHEM-DOPO
Chemical Name	9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide
Chemical Structure
CAS NO.	35948-25-5
Appearances	White flake
Assay	99% min
Melting Point	116℃~ 119℃
Boiling Point	200℃/1mm Hg
Specific Gravity	1.378/25℃
Metal Content	< 1 ppm
Transmittance	T425nm >98%
Solubility	Easily soluble in methanol, ethanol, isopropanol, chloroform, DMF,DMSO.Slightly soluble in benzene, toluene.Hardly soluble in water, n-hexane

 

 

Advantages

• UL94-VO flame retardant standard
• Reactive flame retardant
• Environmentally friendly flame retardant
• High glass transition temperature
• Excellent thermal stability
• Low smoke
• High carbon content
• Halogen-free
• Permanent effect

 

 

Applications

• Flame retardant epoxy resin for PCB
• Electrical laminates
• Electronic equipment plastic
• Copper lined laminate
• Various of thermosetting resin

 

Dosage

Recommended dosage 10~12%

The dosage level is to be regarded as a general guideline that can be adjusted according to the type of material and the expected effect.

 

Package

25 kg/bag