PP Orient Energy K8003 Resin

Material Introduction: PP Orient Energy K8003 is high‑impact block‑copolymer polypropylene. It delivers outstanding toughness, favorable heat resistance and dimensional stability for multiple application fields.

Main Applications

Packaging containers: turnover boxes, bottles, paint buckets, large‑size containers and heavy‑duty packaging.

Automotive parts: automotive components.

Industrial parts: load‑bearing industrial components.

Consumer goods: baby strollers, power‑tool housings, children’s carts.

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 / 12	g/10 min	ASTM D1238, ISO 1133	Dual MFR reference values.
	Density	‑	0.90	g/cm³	ASTM D792, ASTM D1505, ISO 1183	Typical copolymer PP density.
Mechanical Properties	Tensile Yield Strength	‑	25‑26	MPa	ASTM D638, ISO 527	‑
	Flexural Modulus	‑	1000‑1300	MPa	ASTM D790, ISO 178	Stiffness range.
	Elongation at Break	‑	＞200 / 300	%	ASTM D638, ISO 527	High ductility.
	Izod Notched Impact Strength	23℃	N.B(no‑break) / 70 J/m / 40 kJ/m²	J/m or kJ/m²	ASTM D256, ISO 179	Non‑break feature for high‑toughness grade.
	Rockwell Hardness	R‑scale	70‑85	R scale	ASTM D785, ISO 2039‑2	Surface hardness range.
Thermal Properties	Heat‑Distortion Temperature(HDT)	0.45MPa/0.46MPa/4.6kg/cm², non‑annealed	90‑100 / 74	℃	ASTM D648, ISO 75	Low‑load heat‑resistance range.
Other Properties	Molding Shrinkage	‑	1.4‑1.8	%	‑	Mold‑design reference.

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)	180‑200℃	Prevent thermal degradation.
Barrel middle zone(compression section)	200‑220℃	‑
Barrel front zone(metering section)	210‑230℃	‑
Nozzle temperature	210‑230℃	‑
Mold temperature	40‑80℃, recommended 50‑70℃	Crystallization mainly determined by mold temperature. Low temperature: poor surface, weld‑line and flow‑mark risks; high temperature will cause warpage.
Injection pressure	70‑120 MPa	Higher pressure for thin‑wall or complex‑structure parts.
Holding pressure	40%‑60% of injection pressure	Prevent sink mark and excessive shrinkage; holding time accounts for ~30% of cycle time.
Injection speed	Medium‑low speed	Medium‑low injection speed recommended for high‑impact grade, to optimize molecular orientation and reduce internal stress.
Screw speed	Medium screw speed	Avoid excessive shear heat leading to material degradation.

Disclaimer: All above data is for reference only.