Accession Number:

ADA143241

Title:

Properties of UV-Curable Polyurethane Acrylates: Effect of Reactive Diluent.

Descriptive Note:

Interim technical rept. no. 4,

Corporate Author:

WISCONSIN UNIV-MADISON DEPT OF CHEMICAL ENGINEERING

Report Date:

1984-06-20

Pagination or Media Count:

44.0

Abstract:

Several families of UV-cured polyurethane acrylates were synthesized and the effects of reactive diluent type and content on their physical properties were investigated. Increasing reactive diluent content promoted the development of a second, high glass transition temperature phase in all the materials, thereby leading to increased strength and modulus. Changes in the extensibility of the samples upon addition of reactive diluent were inversely related to the effect of the diluent on the crosslink density. The effects of using different reactive diluents di-, tri- and tetraethylene glycol diacrylate and N-vinyl pyrrolidone on the physical properties of the samples were attributed to differences in the softening point of the homopolymer reactive diluents and the relative compatibility of the reactive diluents with the urethane acrylate segments. Author

Subject Categories:

  • Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE