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Elmet Technologies
Evonik TROGAMID® myCX Polyamide
Categories: Polymer; Thermoplastic; Acrylic (PMMA)

Material Notes: Transparent polyamides are broadly established in the technically demanding fields of automotive, electronics and constructions. The TROGAMID® CX family combines the transparency and processing behavior of amorphous materials with the advantages of polyamides like toughness, rigidity, abrasion resistance, and chemical and stress cracking resistance. When special aliphatic and cycloaliphatic monomers are used, transparent polyamides can be made that have inherently better UV resistance, like TROGAMID® CX9704. In addition, carefully selected monomers yield a crystallizable polyamide, such as TROGAMID® myCX, a PA PACM 12. The crystallites are so small that they don’t scatter visible light. This makes the material appear transparent to the human eye—a property known as microcrystallinity. TROGAMID® CX9704 is the perfect choice for the manufacturing of spectacle frames. It makes possible:
  • freedom of design in shape and color
  • ultra thin frame constructions
  • light weight eyeglass frames
  • durability, robustness and flexibility
In contrast to other transparent amorphous materials, the microcrystalline TROGAMID® myCX demonstrates excellent stress-cracking resistance. It is an unparalleled transparent material that combines the properties of a semi-crystalline molding compound with those of amorphous materials. For lenses that satisfy the most demanding customer, TROGAMID® myCX is preferred because it:
  • provides the highest comfort due to its very low weight
  • offers excellent optical properties
  • delivers the highest safety level possible in sunglass lenses
  • can be combined with all potential
  • frame materials
  • assures highest durability in top quality sunglasses
  • prevents crack formation by stress or chemical attack

Information provided by Evonik

Vendors:
Available Properties
  • Density, ISO 1183
  • Water Absorption at Saturation, ISO 62
  • Linear Mold Shrinkage, Flow, ISO 294-4
  • Linear Mold Shrinkage, Transverse, ISO 294-4
  • Hardness, Shore D, ISO 868
  • Tensile Strength, Yield, ISO 527-1/2
  • Elongation at Break, ISO 527-1/2
  • Elongation at Yield, ISO 527-1/2
  • Tensile Modulus, ISO 527-1/-2
  • Charpy Impact Unnotched, ISO 179/1eU
  • Charpy Impact Unnotched, ISO 179/1eU
  • Charpy Impact Unnotched, ISO 179/1eU
  • Charpy Impact, Notched, ISO 179/1eA
  • Charpy Impact, Notched, ISO 179/1eA
  • Charpy Impact, Notched, ISO 179/1eA
  • CTE, linear, Parallel to Flow, ISO 11359
  • CTE, linear, Transverse to Flow, ISO 11359
  • Deflection Temperature at 1.8 MPa (264 psi), ISO 75-1/-2
  • Glass Transition Temp, Tg, ISO 11357
  • Refractive Index, DIN 53491
  • Refractive Index, DIN 53491
  • Refractive Index, DIN 53491
  • Transmission, Visible, ISO 13468-2
  • Melt Temperature
  
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Manufacturer Notes:
Evonik Corporation (Former Evonik Degussa GmbH)

Category Notes
Plastic

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