CN9018: A New Highly Flexible, High-Strength Oligomer for Energy-Cured Adhesives

Benefits:

  • Enhanced peel adhesion
  • Improved tack
  • High flexibility

Suggested Applications:

  • Pressure-sensitive adhesives
  • Laminating adhesives
  • Coatings


Additional Information:

MSDS/TDS: CN9018

Description:
CN9018 has been developed for UV/EB-cured laminating and pressure sensitive adhesives (PSAs). It is very flexible and produces tacky PSAs. CN9018 also has good strength properties. Its relatively high viscosity allows formulating latitude to produce thick adhesive films, a plus for applications including sound and vibration dampening.

Tables 1 and 2 show features and typical physical properties for CN9018.


Table 3 shows a model formulation used to evaluate CN9018 in a UV-cured PSA. As noted previously, the relatively high viscosity of CN9018 also may be helpful in formulating for thick film applications. Shear adhesion failure temperature (SAFT) increases with the proportion of CN9018.

Figure 1 compares 180° peel adhesion (ASTM D903) and tack (ASTM D2979) for the above CN9018-based adhesives. The purpose of this study is to show a range of adhesive performances based on formulary variation. The strength and flexibility properties of CN9018 allow formulators to optimize overall performance to meet specific application requirements. As the adhesive failure modes below show, CN9018 can be easily formulated to provide compositions ranging from traditional PSAs to transfer adhesives.

The listed properties are illustrative only, and not product specifications.  Sartomer Company disclaims any liability in connection with the use of the information, and does not warrant against infringement by reason of the use of its products in connection with other materials or in any process.

Sartomer Company, Inc.
502 Thomas Jones Way
Exton, PA 19341
U.S.A.
1-800-SARTOMER
610-363-4100
www.sartomer.com

December 2008