Pressure-Sensitive Adhesives: An Introductory Course

MRS Bulletin ◽  
2003 ◽  
Vol 28 (6) ◽  
pp. 434-439 ◽  
Author(s):  
Costantino Creton
Keyword(s):  
Light Pressure ◽  
Pressure Sensitive Adhesives ◽  
Monomer Composition ◽  
Deformable Solids ◽  
Introductory Course ◽  
Pressure Sensitive ◽  
Physical Transformation ◽  
Simple Contact ◽  
Physical Principles ◽  
Adhesive Materials

AbstractSelf-adhesive materials are called, in the adhesives trade, “pressure-sensitive adhesives” (PSAs). PSAs are designed to stick on almost any surface by simple contact under light pressure. This special class of adhesives does not undergo any physical transformation or chemical reaction during the bonding process. Because of this, the rheological properties of the adhesive must be finely tuned for the application, combining a carefully chosen polymer architecture and monomer composition with the proper addition of small molecules called tackifying resins. PSAs are soft, deformable solids and, depending on the formulation, easily form bridging fibrils between two surfaces upon debonding. They are safe to use and easy to handle and thus are increasingly replacing more conventional types of adhesives. In this article, we review both the primary material characteristics of PSAs and the main physical principles that make them work effectively.

scholarly journals Influence of the unsaturated photoinitiators kind on the properties of uv-crosslinkable acrylic pressure-sensitive adhesives

2012 ◽  
Vol 14 (3) ◽  
pp. 83-87
Author(s):  
Zbigniew Czech ◽  
Agnieszka Kowalczyk ◽  
Karolina Górka ◽  
Urszula Głuch ◽  
Lu Shao ◽  
...  
Keyword(s):  
Raw Materials ◽  
Polymerization Process ◽  
Crosslinking Reaction ◽  
Light Pressure ◽  
Polymer Backbone ◽  
Pressure Sensitive Adhesives ◽  
Monomer Composition ◽  
Pressure Sensitive ◽  
Simple Contact ◽  
New Applications

UV-crossinkable pressure-sensitive adhesives (PSA) materials are called, in the adhesives trade photoreactive self-adhesive. UV-crosslinkable PSAs are designed after the UV-initiated crosslinking reaction to stick to almost any surface by a simple contact under light pressure. This special class of adhesives does not undergo any physical transformation or chemical reaction during the bonding process. Because of the rheological properties the adhesive must be fi nely tuned for the application, combining a carefully chosen polymer architecture and monomer composition with the proper addition of small additives called photoinitiators. The best way is using the unsaturated copolymerizable photoinitiators and their direct incorporation into polymer chain during the polymerization process. Progress in the coating technology and the development of novel photoreactive acrylic adhesives will open the door to new applications and an extended market penetration of UV-crosslinkable acrylic adhesive raw materials containing unsaturated copolymerizable photoinitiators incorporated into the polymer backbone. Photoreactive UV-crosslinkable acrylic PSA are characterized by good tack, good adhesion, excellent cohesion and very low shrinkage.

Tack and Green Strength of Elastomeric Materials

1981 ◽  
Vol 54 (3) ◽  
pp. 576-595 ◽  
Author(s):  
G. R. Hamed
Keyword(s):  
Light Pressure ◽  
Pressure Sensitive Adhesives ◽  
Green Strength ◽  
Pressure Sensitive ◽  
Deformation And Fracture ◽  
Resistance To Deformation ◽  
Elastomeric Materials ◽  
The Many ◽  
Term Creep ◽  
Short Time

Abstract Tack and green strength are two important properties of many elastomer compounds. Tack is the ability of two materials to resist separation after bringing their surfaces into contact for a short time under a light pressure. Two types can be defined: autohesive tack (autohesion), where both materials have the same chemical composition and adhesive tack, in which the two materials have dissimilar compositions. The green strength of an elastomer is its resistance to deformation and fracture before vulcanization. Rubber stocks that are used in tire manufacture (or other plied-up operations) must have a certain minimum level of tack and green strength. Tack is necessary so that the many components of a green tire will hold together until molding. This requires not only that the components exhibit quick stick when building, but also that the tack bonds have long term creep resistance, since the green tire may be hung on a rack several days before molding and vulcanization. In addition, an uncured tire must have good green strength so that it will not creep and hence distort excessively before molding or tear during the expansion that occurs upon molding (or in the second stage for a radial tire). Adhesive tack is an important property of pressure sensitive tapes. Although some of the basic criterion necessary to obtain high autohesive tack or high adhesive tack are similar, this review will focus primarily on autohesion. Thus, unless otherwise staled, the term “tack” will refer to autohesive tack. However, ideas and results will be presented from the literature on pressure sensitive adhesives when such information leads to a further understanding of autohesion.

scholarly journals Development of photoreactive UV-crosslinkable solvent-free acrylic pressure-sensitive adhesives coated at room temperature and used for removable and repositionable self-adhesive materials

2011 ◽  
Vol 13 (1) ◽  
pp. 31-34 ◽  
Author(s):  
Zbigniew Czech ◽  
Agnieszka Butwin
Keyword(s):  
Stearic Acid ◽  
Room Temperature ◽  
Solvent Free ◽  
Adhesive Layers ◽  
Pressure Sensitive Adhesives ◽  
Uv Crosslinking ◽  
Low Viscosity ◽  
Pressure Sensitive ◽  
Wide Range ◽  
Adhesive Materials

Development of photoreactive UV-crosslinkable solvent-free acrylic pressure-sensitive adhesives coated at room temperature and used for removable and repositionable self-adhesive materialsThe goal of this article is to review the development of photoreactive UV-crosslinkable acrylic pressure-sensitive adhesives (PSAs) characterized by low viscosity, which can be coated at room temperature in the form of adhesive layers and are characterized by removable properties after UV-crosslinking. Surfactants and stearic acid have been used to improve the performance of the acrylic PSA, too. They are used for the manufacturing of removable and repositionable self-adhesive products, such as easy peel-able decorative films and wide range version of post-it articles.

scholarly journals UV-crosslinkable warm-melt pressure-sensitive adhesives based on acrylics

2010 ◽  
Vol 12 (4) ◽  
pp. 58-61 ◽  
Author(s):  
Zbigniew Czech ◽  
Agnieszka Butwin
Keyword(s):  
Polymer Chain ◽  
Experimental Test ◽  
Polymerization Process ◽  
Adhesive Properties ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive ◽  
Wide Range ◽  
New Generation ◽  
Adhesive Materials

UV-crosslinkable warm-melt pressure-sensitive adhesives based on acrylics The target of this article is to show the preparation of new generation of UV-crosslinkable warm-melt acrylic pressure-sensitive adhesives (PSAs) and the experimental test of their adhesive properties in comparison with typical conventional hot-melts adhesives. New generation of UV-crosslinkable acrylic warm-melts PSAs containing unsaturated photoinitiator, incorporated during polymerization process into polymer chain, and photoreactive diluents added to PSA systems after polymerization allows producing of wide range of self-adhesive materials, such as labels, mounting tapes, masking and splicing tapes, and sign and marking films.

Passivation of pressure sensitive adhesive stickies by addition of acrylic fibers to OCC pulp before papermaking

TAPPI Journal ◽  
2016 ◽  
Vol 15 (10) ◽  
pp. 631-639
Author(s):  
MOHAMMAD HADI ARYAIE MONFARED ◽  
HOSSEIN RESALATI ◽  
ALI GHASEMIAN ◽  
MARTIN A. HUBBE
Keyword(s):  
Adverse Effects ◽  
Control Sample ◽  
Pressure Sensitive Adhesive ◽  
Acrylic Fiber ◽  
Burst Strength ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive ◽  
Tear Index ◽  
Breaking Length ◽  
Acrylic Fibers

This study investigated the addition of acrylic fiber to old corrugated container (OCC) pulp as a possible means of overcoming adverse effects of water-based pressure sensitive adhesives during manufacture of paper or paperboard. Such adhesives can constitute a main source of stickies, which hurt the efficiency of the papermaking process and make tacky spots in the product. The highest amount of acrylic fiber added to recycled pulps generally resulted in a 77% reduction in accepted pulp microstickies. The addition of acrylic fibers also increased pulp freeness, tear index, burst strength, and breaking length, though there was a reduction in screen yield. Hence, in addition to controlling the adverse effects of stickies, the addition of acrylic fibers resulted in the improvement of the mechanical properties of paper compared with a control sample.

Sign in / Sign up

Export Citation Format

Share Document