Handan, Hebei, China
Business Type: Trading Company
1.PBT process characteristics
PBT has a distinct melting point and a melting point of 225-235 ° C. It is a crystalline material with a crystallinity of 40%.
The viscosity of the PBT melt is not as much affected by the temperature as the shear stress. Therefore, in injection molding, the injection pressure has an obvious effect on the melt flow of the pbt gf30 fr.
pbt gf30 fr has good fluidity and low viscosity in the molten state, which is second only to nylon. It is prone to "casting" in molding.
pbt gf30 fr shaped articles are anisotropic. pbt gf30 fr is easily degraded when exposed to water at high temperatures.
2.injection molding machine
When using a screw type injection molding machine. The following points should be considered.
a.The amount of material used should be controlled within 30%~80% of the maximum injection volume of the injection molding machine. It is not advisable to use small injection molding machines to produce small products.
b.The gradient type three-stage screw should be selected, the aspect ratio is 15~20, and the compression ratio is 2.5~3.0.
c.should use self-locking nozzle with heating and temperature control device.
d.When forming flame retardant pbt gf30 fr, the relevant parts of the injection molding machine should be treated with anti-corrosion treatment.
|Material||SIKO Grade No.||Filler(%)||FR (UL-94)||Description||Main Application|
|PBT, PET Series||Glassfiber reinforced PBT&PET,High Strength||SP20G20/G30/G40||10%-40%||HB||PBT+20%GF Reinforced||Hair Straightor, Computer radiator fan, Iron base etc|
|GF& FR PBT&PET,High Strength||SP20G30FGN||30%||V0||PBT+30%GF, Halogen free FR V0 1.6mm||Various Switch components, Connectors, Coil Bobbin, Transformers bobbin, Adaptor cover etc.(15%, 25% is also avaliable)|
|SP30G30FGN||30%||V0||PET+30%GF, Halogen free FR V0 1.6mm,Equal to DUPONT FR530|
|SP20G20F/G30F||20%-30%||V0||PBT+20%GF, FR V0 1.6mm|
|SP30G20F/G30F||20%-30%||V0||PET+20%GF, FR V0 1.6mm,|