PP Wuhan Petrochemical K8009（PPB‑M09）Resin

Material Introduction: PP Wuhan Petrochemical K8009 (PPB‑M09) is block‑copolymer polypropylene with high‑impact and high‑flow properties. It achieves excellent balance among rigidity, toughness and processability.

Main Applications

Automotive industry: auto parts, battery boxes, motorcycle accessories.

Home appliances: electrical components, rice‑cake cooking utensils.

Daily‑use & industrial goods: office furniture, general‑purpose packaging and containers.

Performance Parameters

Performance Category	Test Item	Test Condition	Reference Value	Unit	Reference Standard	Remarks & Interpretation
Basic Properties	Melt Flow Rate(MFR)	230℃/2.16kg	8.5‑9.0	g/10 min	GB/T 3682, ASTM D1238	Medium‑high‑flow impact‑copolymer PP.
	Density	‑	0.90‑0.902	g/cm³	ASTM D792, ISO 1183	Typical PP density range.
	Molding Shrinkage	‑	1.4‑1.8	%	ASTM D955, FPC Method	Mold‑design compensation reference.
Mechanical Properties	Tensile Yield Strength	‑	23‑26	MPa	ISO 527‑1, GB/T 12670, ASTM D638	Tensile yield performance.
	Flexural Modulus	‑	1030‑1150	MPa	ISO 178, GB/T 12670, ASTM D790	Rigidity index.
	Elongation at Break	‑	＞200	%	ASTM D638, ISO 527	Good ductility.
	Charpy Notched Impact Strength	23℃	20	kJ/m²	GB/T 12670	Room‑temperature impact toughness.
	Izod Notched Impact Strength	23℃	41	kJ/m²	ISO 179	Excellent normal‑temperature impact property.
	Izod Notched Impact Strength	-20℃	4.9‑6	kJ/m²	ISO 179, GB/T 12670	Low‑temperature impact resistance.
	Rockwell Hardness	R‑scale	75‑85	‑	Q/SH PRD255, ASTM D785	Surface hardness.
Thermal Properties	Heat‑Distortion Temperature(HDT)	0.45 MPa, non‑annealed	85‑95	℃	ISO 75, GB/T 12670, ASTM D648	Heat‑resistance reference.
	Vicat Softening Temperature	‑	To be confirmed	℃	‑	Data pending.
Other Properties	Ash content	‑	＜0.03	%	GB/T 12670	‑
	Yellow Index	‑	≤2	‑	ASTM D‑6290	Good color stability.
	Pellet appearance(colored pellet)	‑	≤5	pcs/kg	SH/T1541	Particle quality indicator.
	Pellet appearance(over‑size & fine pellet)	‑	≤100	pcs/kg	SH/T1541	‑

Injection‑Molding Process Parameters

Process Item	Suggested Range / Description	Remarks
Drying treatment	Generally unnecessary; dry at 80℃ for 1‑2 h if damp 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。