PP LyondellBasell EP300R Resin

Material Introduction: PP LyondellBasell EP300R is high‑flow injection‑molding impact‑copolymer polypropylene. It features good toughness, excellent processability and balanced stiffness‑toughness performance for wide‑range applications.

Main Applications

Thin‑wall containers: food containers, packaging boxes.

Home appliances: components for large & small household appliances, such as washing‑machine inner drums and electrical appliance parts.

Household articles: various household goods and containers.

Automotive industry: automotive interior parts including instrument panels and door panels.

Packaging industry: injection‑molded bottles, food‑contact packaging 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	30	g/10 min	ASTM D1238	High‑flow impact‑copolymer PP.
	Density	‑	0.90	g/cm³	ASTM D792	Typical copolymer PP density.
Mechanical Properties	Tensile Yield Strength	‑	23.5	MPa	ASTM D638	‑
	Flexural Modulus	‑	1030	MPa	ASTM D790	Rigidity performance.
	Yield Elongation	‑	5.0	%	ASTM D638	‑
	Izod Notched Impact Strength	23℃	127 / 130	J/m	ASTM D256	Room‑temperature impact resistance.
	Izod Notched Impact Strength	-20℃	49	J/m	ASTM D256	Low‑temperature impact property.
	Rockwell Hardness	R‑scale	85	‑	ASTM D785	Surface hardness.
Thermal Properties	Vicat Softening Temperature	‑	150	℃	ASTM D1525	Heat‑resistance indicator.

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‑Feed Zone	160～250℃，recommended 200℃	Avoid thermal degradation.
Barrel‑Compression Zone	200～300℃，recommended 220℃	‑
Barrel‑Metering Zone	220～300℃，recommended 240℃	‑
Nozzle Temperature	220～300℃，recommended 240℃	‑
Melt Temperature	220～280℃	Do not exceed 275℃.
Mold Temperature	20～70℃，recommended 50℃	Crystallization mainly determined by mold temperature. Low temperature: poor surface, weld‑line and flow‑mark risks; high temperature brings warpage risk.
Injection Pressure	80～140 MPa(800～1400 bar); up to 180 MPa(1800 bar) for individual thin‑wall packaging containers	High flowability, excessive injection pressure shall be avoided.
Holding Pressure	30%～60% of injection pressure	Prevent sink mark; holding time accounts for approx. 30% of cycle time.
Back Pressure	5～20 MPa(50～200 bar)	‑
Injection Speed	High‑speed injection preferred to minimize internal stress; switch to low‑speed injection under higher melt temperature if surface defects occur. High‑speed injection with accumulator required for thin‑wall packaging containers.	Thin‑wall products require sufficient filling performance.

Disclaimer: All above data is for reference only.