|Brand:||curing agent mixed with epoxy resin and other item|
|Origin:||Made In China|
|Category:||Chemicals / Resin|
|Label:||APG , ELECTRICS RAW MATERI , EPOXY RESIN&HARDENRE|
|Min. Order:||1 kg|
This system product chooses high purity epoxy resin and high quality liquid anhydride as raw material and adopts APG technology. It is stable in normal temperature. It has the characteristics like: Fast gel at high temperature, good electric and heat performance, etc.
Epoxy resin QY-8303A 100 part by weight
Curing agent QY-8303B 100 part by weight
Filler ATMC 300-350 part by weight
Mill base Q. S
Scope of application: High voltage electric insulation parts, such as insulator, insulation tube, mutual inductor, etc.
QY-8303A modification medium viscosity bisphenol A epoxy resin
Colorless or nearly colorless viscosity liquid
Viscosity(PA. S/25 degree)
Can be hydrolyzed chloride(%)
QY-8303B modification or pre-added accelerate liquid anhydride curing agent
Light yellow to yellow transparent liquid
Acid value (mgKOH/g)
Note: QY-8303B contained accelerates. So it should be avoided to store at high temperature. It should avoid moisture and not exposure to air for long time.
Mold temperature 140~160degree
Gelation time 8~11min/140degree, 4~5min/160degree
Injection pressure 0.2~0.5MPa
Demould time 15~40min(According to mold temperature and injection parts volume )
Post curing More that 10 hours/more than 130degree or 6 hours/140degree
Curing body main performance index
Flexural strength(MPa) 125~135
Tensile strength(MPa) 65~75
Impulse strength(kJ/m2) 12~18
Glass transition temperature(degree) 95~105
Electric strength(kv/mm) 20~28
Curing shrinkage (%) 0.8~1.0
Dielectric loss angle tangent(1× 106Hz) 0.01~0.02
Density(Filler content 60%, g/cm3) 1.75~1.80
No filler 8303 system viscosity change under 40degree
The above data is determined by the standard sample according to the national standard method. Glass transition temperature is tested by DSC method. Since the difference of material mixture ratio and technology, the data may have deviation.
The above data is only for reference.