PP Formosa Plastics 1120 Resin

Material Introduction: PP Formosa Plastics 1120 is widely‑used injection‑molding homopolymer polypropylene. It features favorable rigidity, excellent heat resistance and food‑contact compliance, applied in multiple industries.

Main Applications

Home appliances: housings and internal structural parts for washing machines, refrigerators, televisions; stable performance under high‑temperature conditions.

Food‑contact applications: compliant with FDA 21 CFR 177.1520, suitable for food containers.

Consumer goods: household articles, general‑purpose packaging and containers.

Electrical & electronics: electrical equipment housings and components.

Automotive industry: interior automotive components.

Medical devices: good biocompatibility for medical‑device related applications.

Performance Parameters

Performance Category	Test Item	Test Condition	Reference Value	Unit	Reference Standard	Remarks & Interpretation
Basic Properties	Melt Flow Rate(MFR)	230℃/2.16kg	15	g/10 min	ISO 1133, ASTM D1238	High‑flow homopolymer PP for injection molding.
	Density	‑	0.90	g/cm³	ISO 1183, ASTM D792	Typical PP density.
Mechanical Properties	Tensile Yield Strength	‑	34.3‑44.1	MPa	ISO 527, ASTM D638	High tensile strength.
	Flexural Modulus	‑	1420‑1570	MPa	ISO 178, ASTM D790	High‑rigidity grade.
	Elongation at Break	‑	100‑300	%	ISO 527, ASTM D638	Ductile property.
	Izod Notched Impact Strength	23℃	29‑39	kJ/m²	ISO 180	Room‑temperature impact toughness.
	Rockwell Hardness	R‑scale	110‑111	‑	ISO 2039‑2, ASTM D785	High‑hardness homopolymer grade.
Thermal Properties	Heat‑Distortion Temperature(HDT)	1.80 MPa, non‑annealed	115‑120	℃	ISO 75‑2/A, ASTM D648	Good high‑load heat resistance.
	Vicat Softening Temperature	‑	155	℃	ISO 306, ASTM D1525(speculated)	Heat‑resistance indicator.
Other Properties	Molding Shrinkage	‑	1.3‑1.7 or 1.5	%	FPC Method, ISO 294‑4	Mold‑design compensation reference.
	Flame‑retardant rating	2.00 mm	HB	‑	UL 94	General non‑flame‑retardant grade.

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	30‑50℃ or 40‑80℃(general recommendation)	Crystallization depends largely on 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)	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.