Plastic is everywhere—from disposable coffee cups to snack bags and auto parts. But behind the scenes of this massive industry, one gas plays a critical role: nitrogen.

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Why Nitrogen?

Nitrogen is dry, inert, and non-reactive, making it ideal for protecting product quality and preventing oxidation or discoloration during plastic processing.

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Key Applications of Nitrogen in Plastics

✅ 1. Injection Molding (Oxygen Displacement)

In injection molding, residual oxygen in the mold cavity can cause oxidation, yellowing, and poor surface finish. Nitrogen purging the mold displaces oxygen, ensuring:

• Better polymer integrity
• Consistent color and surface quality
• Minimized contamination

✅ 2. Gas-Assisted Injection Molding (GAIM)

GAIM is used to produce large or thick-walled plastic parts. The process:

• Partially fills the mold with molten plastic
• Then injects high-pressure nitrogen gas to push the polymer into all corners
• Ensures uniform wall thickness, prevents shrinkage or cracking during cooling

Common in automotive interiors, electronics housings, etc.

✅ 3. Plastic Extrusion

Used to manufacture plastic tubing, weather strips, and profiles. Nitrogen gas serves to:

• Replace oxygen at the die head
• Prevent oxidation, residue build-up, or product yellowing
• Improve product consistency and extend equipment life

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FOOEN Nitrogen Generator Rental for Plastics

FOOEN offers containerized nitrogen generator systems with PSA technology for flexible on-site nitrogen generation.

Our service advantages:

• 🚛 Mobile skid-mounted systems for various plant environments
• 💡 Imported CMS and energy-efficient PSA technology for low air-to-nitrogen ratio
• 🔄 Support both short-term and long-term projects with purity control

FOOEN helps plastic manufacturers optimize quality, reduce costs, and ensure continuous nitrogen supply.