PP Baofeng Ningxia K8003 Resin

Material Introduction: PP Baofeng Ningxia K8003 is injection‑molding block‑copolymer polypropylene. It features high‑impact resistance and good mechanical properties for various applications.

Main Applications

Automotive parts: automotive components.

Industrial parts: load‑bearing industrial components.

Consumer goods: baby strollers, wheelchair parts.

Home appliances: TV housings, radio housings, electrical insulating materials.

Other applications: flat yarn, fiber, packaging films.

Performance Parameters

Performance Category	Test Item	Test Condition	Reference Value	Unit	Reference Standard	Remarks & Interpretation
Basic Properties	Melt Flow Rate(MFR)	230℃/2.16kg	2.5	g/10 min	ASTM D1238	Low‑flow copolymer PP grade.
	Density	‑	0.90	g/cm³	ASTM D792	Typical PP density.
Mechanical Properties	Tensile Yield Strength	‑	To be confirmed (Yangzi Petrochemical K8003 premium grade ≥26)	MPa	‑	Reference for comparison.
	Flexural Modulus	‑	9000(≈882.6 MPa) /1300(reference from other brands)	kg/cm² or MPa	ASTM D790	Unit conversion noted.
	Elongation at Break	‑	＞200	%	ASTM D638	High ductility.
	Izod Impact Strength	23℃	N.B(no‑break)	J/m or kJ/m²	ASTM D256	High‑toughness non‑break characteristic.
	Rockwell Hardness	R‑scale	70	R scale	ASTM D785	Surface hardness.
Thermal Properties	Heat‑Distortion Temperature(HDT)	0.45MPa / 0.46MPa, non‑annealed	90	℃	ASTM D648	Low‑load heat‑resistance.
Other Properties	Molding Shrinkage	‑	1.4‑1.8	%	ASTM D955	Mold‑design reference.

Injection‑Molding Process Parameters

Process Item	Suggested Range / Description	Remarks
Drying treatment	Generally unnecessary; dry at 80℃ for 1‑2 h under poor storage condition	PP low‑moisture‑absorption feature.
Barrel rear zone(feed section)	160‑200℃	Prevent thermal degradation.
Barrel middle zone(compression section)	180‑220℃	‑
Barrel front zone(metering section)	200‑240℃	‑
Nozzle temperature	200‑240℃	‑
Mold temperature	40‑80℃, recommended 50℃	Crystallization mainly determined by mold temperature. Low temperature: poor surface, weld‑line and flow‑mark risks; high temperature will cause warpage.
Injection pressure	80‑140 MPa(800‑1400 bar)	Higher pressure for thin‑wall or complex‑structure parts.
Holding pressure	30%‑60% of injection pressure	Prevent sink mark and excessive shrinkage; holding time accounts for ~30% of cycle time.
Injection speed	Medium speed; high‑speed injection required for thin‑wall packaging containers.	‑
Screw speed	High screw speed(linear velocity 1.3 m/s) is permitted	Complete plasticization before cooling phase finishes.

Disclaimer: All above data is for reference only.