Nichigo-POLYESTER™

Testing Methods (Nichigo-POLYESTER)

Testing Methods (Nichigo-POLYESTER)
Melt viscosity Flow tester (30kgf/㎠)
Tg (Glass transition temperature), Melting point DSC
Flow start temperature Flow tester (30kgf/㎠)
Hardness Shore D
Hydroxyl value Neutralization titration using the acetic acid anhydride / pyridine method; Acid Value: Neutralization titration
Tensile test Test piece: 5mm width; Distance between chucks: 20mm; Tension rate: 50mm/min (23℃)
Adhesion Testing Method
Cross-linker Coronate L-55E (supplied by Tosoh corporation)
Substrate PET film (38μm)
Adherend SUS sheet
Drying 100℃ × 3min
Coating thickness 25μm
Aging 40℃ × 4 days
Adhesive force 180 peels (Peel speed: 300mm/min; 23℃ × 50%RH) 2kg roller × 2 times forwards and backwards
Holding power SUS sheet; 25mm×25mm adhesion; 2kg roller × 2 times forwards and backwards; Load: 1kg
  • 【Result】
  • ◎No-creep
  • ○ Creep less than 2mm (after 24 hr)
Ball tack J.Dow method ∠30°/23℃×50%RH
Optical PropertiesTesting Methods
Cross-linker Coronate L-55E (by Tosoh corporation)
Substrate PET film (100μm)
Adherend Polycarbonate film (2mm)
Drying 100℃×4min
Coating thickness 50μm
Aging 40℃×4days
Adhesive force

180℃ peel (peeling speed: 300mm/min) 2kg roller × two forwards and backwards passes

*Adherend: Polycarbonate
Substrate: PET (transrfer coating)

*Autocreve treatment(0.5MPa×50℃×20min) in case of adhesive properties under 85℃

Blister resistance

Apperance transition after 24hr under 85℃/85%RH

*Adherend: Polycarbonate
Substrate: PET (transrfer coating)
*Autocreve treatment(0.5MPa×50℃×20min)

  • 【Result】
    • ◎:No-difference
    • ○:Blistered area is 10% or less
    • △:Blistered area is more than 10%

This site has been created based on Nippon Gohsei's technical knowledge, but does not necessarily guarantee performance in all applications. Similarly, figures contained herein are representative values, and not guaranteed values. Please use our products after fully examining their applicability, or contact us should you have any questions.

Top Page (Nichigo-POLYESTER)

NOTE: Nichigo-POLYESTER is a trademark of The Nippon Synthetic Chemical Industry Co., Ltd. (NIPPON GOHSEI).

Inquiries

Feel free to contact NIPPON GOHSEI for technical inquires and ordering or to request catalogs, pricing estimates, etc.

03-6436-2815

Page Top