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The new patent-pending Nanoflow extrusion die technology from Guill Tool and Engineering is ideal for applications requiring enhanced mechanical, barrier and optical properties.

According to the company, it can create 1,000-plus layers from a single extruder, compared with roughly a dozen layers prior to its development.

The Nanoflow layer thickness is in the micrometre (one millionth of a metre) to nanometre (one billionth of a metre) range.

With this advanced extrusion technology, savings are available through the use of less material and/or less expensive material, as well as a reduction in the materials needed for production.

The Nanoflow die extrusion technology is designed to enable a greener end product – an increasing concern for manufacturers dealing with stricter governmental regulations.

Richard Guillemette, Guill’s vice-president, said: ‘Several years ago, we started working on overcoming the limitations in the number of layers we could use in tubular or hollow products.

‘Guill now has nano-tooling designs with far more layers than what was previously possible – all of which can create a wide range of advanced products.

‘Conventional multi-layer polymer hose may contain several expensive materials in its construction.

‘Now there is the opportunity to make a comparable product with less materials and less expensive materials,’ he added.

Mechanical properties can be enhanced, such as increased impact and fracture toughness.

An increase in ductility can mean an increase in tear strength.

Strong, brittle materials prone to crack propagation can be combined with soft ductile layers to limit the crack propagation.

Barrier properties (for example, when sensitive materials require protection from the air) can be better engineered by designing thin layers, which will force materials to crystallise.

Gas-barrier-type properties are also made possible with the proprietary Nanoflow die technology.

Guill, which received ISO certification in 1995, designs and manufactures custom extrusion tooling for all types of applications, including wire, cable, fibre optics, medical tube, wood composites, automotive tube, plastics compounding, custom applications, rubber, profile, industrial pipe, hose and tube, blow moulding and food and packaging.

The company also provides education and training for the extrusion industry with plastic and aluminium model heads, fully illustrated operating manuals for step-by-step assembly and disassembly, training videotapes and classes on the care and cleaning of extrusion tooling.

Guill Tool and Engineering

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