Who Invented PE Foam? History of Polyethylene Foam

PE foam (Polyethylene foam) is one of the most widely used protective packaging materials today. But who actually invented it, and how did it develop? This article traces the origins of PE foam from the discovery of polyethylene through to its modern role in global supply chains.

History of the Polyethylene polymer

To understand PE foam, we first need to understand Polyethylene (PE) - the base polymer from which it is made. Polyethylene was first synthesized accidentally in 1898 by German chemist Hans von Pechmann. However, industrial-scale production only began in the 1930s.

In 1933, Eric Fawcett and Reginald Gibson at Imperial Chemical Industries (ICI) in the UK accidentally discovered a practical polyethylene synthesis process. In 1935, another ICI chemist, Michael Perrin, developed a reproducible high-pressure synthesis process that laid the foundation for industrial LDPE production starting in 1939. By the 1950s, scientists Karl Ziegler and Robert Banks together with J. Paul Hogan developed catalysts enabling HDPE production.

Development of PE foam as a packaging material

PE foam (also called EPE foam - Expanded Polyethylene) is a foamed form of polyethylene. Although polyethylene had long been discovered and produced, PE foam as a specialized packaging material developed later - emerging in the 1960s as an effective alternative to traditional packaging materials.

It was not the invention of a single individual but the result of progressive technological advancement in polymer science and packaging engineering. The primary objective was to create a material that was light, shock-absorbing, thermally insulating, easy to process, and cost-effective - meeting the growing demands of manufacturing and logistics.

PE foam vs Bubble Wrap: important distinction

Some people confuse PE foam with bubble wrap. These are distinct materials with different origins:

Bubble wrap was invented in 1957 when Fielding and Chavannes were attempting to create a textured wallpaper. Recognizing its potential as shock-absorbing packaging, they co-founded Sealed Air Corporation in 1960 to commercialize it.

How PE foam is manufactured today

• Feedstock: LDPE or LLDPE pellets
• Process: Pellets are melted and mixed with a blowing agent (typically butane or CO2) in an extruder at 180-220 degrees C
• Expansion: As the melt exits the die, pressure drops and the blowing agent expands, creating the closed-cell foam structure
• Output: Sheets, rolls, tubes, or custom shapes with density typically 15-35 kg/m3

Why PE foam matters in modern logistics

From its origins in the 1960s, PE foam has become indispensable in global supply chains. Key properties driving adoption:

• Shock absorption: Closed-cell structure absorbs and distributes impact energy
• Waterproof: Closed cells block water and moisture
• Chemical resistance: Inert to most oils, solvents, and dilute acids
• Lightweight: Adds minimal weight to shipments
• Clean surface: Does not leave residue on products
• Recyclable: LDPE-based, resin code 4

ICD Vietnam supplies PE foam rolls and sheets for electronics packaging, furniture protection, and industrial wrapping - available in thicknesses from 1 mm to 10 mm.

Frequently Asked Questions

1. Is PE foam the same as styrofoam (EPS)?

No. PE foam (EPE) is made from Polyethylene, while styrofoam is EPS (Expanded Polystyrene). They differ in flexibility (PE foam is flexible, EPS is rigid), recyclability (PE foam is easier to recycle), and moisture resistance (PE foam is superior). PE foam is generally preferred for wrapping individual items; EPS is used for moulded inserts.

2. Can PE foam be recycled?

Yes. PE foam carries resin code 4 (LDPE) and can be recycled. It should be taken to a designated drop-off point rather than household recycling bins as it may jam sorting machinery.

3. What thickness of PE foam do I need?

1-2 mm for light scratch protection (e.g., glass panels, printed materials); 3-5 mm for moderate impact protection (electronics, ceramics); 8-10 mm for heavy-duty cushioning (fragile equipment, furniture edges).