Kunshan Dingfa Chemical Co., Ltd.
Zip code: 215300
Address: Kunshan City High-tech Development Zone, North Road on the 5th 2 4F
HQS-1 is classic copper based compound and their synergists as high effective heat stabilizer package for polyamides
Good fit with most non-filled, mineral filled, glass fiber reinforced, toughened, flame retardant, filament covering most polyamides
Sustain long term thermal ageing at 150~180oC, for glass fiber reinforced polyamide 6 & polyamide 66
Excellent suppressant for polyamide pellet yellowing
Provide good mechnical properties retention under UV
Light bluish color in polyamide pellets might develop when adsorbing moisture in air
Typical Physical Properties
Non melting under most polyamide processing temperature l Partially soluble in water, thereof slight negative for CTI
Inorganic halogen containing
Let down Ratio
0.1 ~ 1.0 wt.% suits for most cases, or combined together with other polyamide stabilizer synergists.
Recommended 0.3 wt.% dosage for glass reinforced PA66
Recommended 0.1 wt.% dosage for melamine cyanurate flame retardant polyamide
Storage & Handling
Avoiding moisture, heat, control exposure to open air
Shelf life under seal >12 months
To feed in the main port of twin screw extruder is most straight forward. The use of HQS-1 concentrate is feasible, but the low melting point polyamide carrier is recommended.