Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

A cmparison of tackified, miniemulsion core-shell acrylic latex films with corresponding particle-blend films: Structure-property relationships

Canetta, Elisabetta, Marchal, Jeanne, Lei, Chun-Hong, Deplace, Fanny, Koenig, Alexander M., Creton, Costantino, Ouzineb, Keltoum and Keddie, Joseph L. 2009. A cmparison of tackified, miniemulsion core-shell acrylic latex films with corresponding particle-blend films: Structure-property relationships. Langmuir 25 (18) , pp. 11021-11031. 10.1021/la901324n

Full text not available from this repository.

Abstract

Tackifying resins (TRs) are often added to pressure-sensitive adhesive films to increase their peel strength and adhesion energy. In waterborne adhesives, the TR is dispersed in water using surfactants and then blended with colloidal polymers in water (i.e., latex). In such waterborne systems, there are problems with the colloidal stability and difficulty in applying coatings of the particle blends; the films are often hydrophilic and subject to water uptake. Here, an alternative method of making waterborne, tackified adhesives is demonstrated. The TR is incorporated within the core of colloidal polymer particles via miniemulsion polymerization. Atomic force microscopy (AFM) combined with force spectroscopy analysis reveals there is heterogeneity in the distribution of the TR in films made from particle blends and also in films made from miniemulsion polymers. Two populations, corresponding to TR-rich and acrylic-rich components, were identified through analysis of the AFM force-displacement curves. The nanoscale maximum adhesion force and adhesion energy were found to be higher in a miniemulsion film containing 12 wt % tackifying resin in comparison to an equivalent blended film. The macroscale tack and viscoelasticity are interpreted by consideration of the nanoscale structure and properties. The incorporation of tackifying resin through a miniemulsion polymerization process not only offers clear benefits in the processing of the adhesive, but it also leads to enhanced adhesion properties.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Publisher: American Chemical Society
ISSN: 0743-7463
Last Modified: 25 Jun 2017 03:39
URI: http://orca.cf.ac.uk/id/eprint/33617

Citation Data

Cited 26 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item