PP Yangzi Petrochemical F301 Resin

Material Introduction: PP Yangzi Petrochemical F301 is spinning‑grade homopolymer polypropylene. It features good mechanical properties, heat resistance and chemical stability for multiple‑field applications.

Main Applications

Woven products: woven bags for grain, fertilizer and cement packaging, packing straps, ropes, brushes, net‑type products, carpet base fabrics.

Injection‑molded products: automotive interior parts (seat frames, interior panels), home‑appliance housings (computer cases, TV housings), household articles (plastic chairs, tables, storage boxes) and daily‑use goods.

Performance Parameters

Performance Category	Test Item	Test Condition	Value / Range	Unit	Reference Standard	Remarks & Interpretation
Basic Properties	Melt Flow Rate(MFR)	230℃/2.16kg	1.1‑1.9	g/10 min	ASTM D1238	Low‑flow spinning‑grade homopolymer PP.
	Density	‑	0.90‑0.91	g/cm³	ASTM D792, ASTM D1505	‑
Mechanical Properties	Tensile Yield Strength	‑	≥30.0	MPa	ASTM D638	‑
	Flexural Modulus	‑	To be confirmed	MPa	ASTM D790	Pending data.
	Elongation at Break	‑	To be confirmed	%	ASTM D638	Pending data.
	Izod Impact Strength	23℃	To be confirmed	J/m	ASTM D256	Pending data.
	Rockwell Hardness	R‑scale	To be confirmed	‑	ASTM D785	Pending data.
Thermal Properties	Heat‑Distortion Temperature(HDT)	0.45 MPa / 0.46 MPa, non‑annealed	To be confirmed	℃	ASTM D648	Pending data.
Other Properties	Isotactic Index	‑	≥96.0	%	‑	‑
	Cleanness	‑	≤10	pcs/kg	‑	Impurity particle control.
	Powder Ash Content	‑	≤0.03	%	‑	‑

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℃	‑
Melt temperature	‑	220‑280℃
Mold temperature	30‑70℃，recommended 40‑60℃	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 available for thin‑wall or complex‑structure parts.
Holding pressure	30%‑60% of injection pressure	Prevent sink mark and excessive shrinkage; holding time accounts for approx. 30% of cycle time.
Back pressure	5‑20 MPa(50‑200 bar)	‑
Injection speed	Medium injection 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.
Runner & Gate	Pin‑point gate or multi‑point gate; heated hot‑runner, insulated hot‑runner. Gate shall be set at thick‑wall position of product, otherwise severe shrinkage defect easily occurs.	Mold‑design suggestion.

Disclaimer: All above data is for reference only.