Surface Energy Of Acrylic Sheet

Some sources quote the critical surface tension in units of mn m which is equivalent to surface energy.

Surface energy of acrylic sheet. For glazing applications continuously imposed design loads should not exceed 750 psi 5 2 mpa at 73 f 23 c. Surface energy values usually have the units of mj m 2. The surface energy of the plastic either allows or prevents wetting the surface. The surface energy values of some typical materials are shown in the two tables.

The first table shows values for low and high surface energy solid materials whilst the second table. Sheet sizes from 10 x 10 to 65 x 130. Acrylic acid aa was co polymerized with 2 ethyl hexyl acrylate 2 eha and 1 6 hexane diol diacrylate hdda to create psa lns. Historically low surface energy plastics required some type of surface treatment such as abrasion flame corona plasma chemical treatment or primers prior to bonding.

The measured surface energy 27 to 31 mj m 2 was sensible as surmised from their structure. Therefore the surface tension of the liquid and the surface energy of the material must be matched for the application. 300 lse low surface energy acrylic 300 f bonds well to lse surfaces outstanding adhesion to low surface energy plastics powder coated paints and lightly oiled metals good chemical and humidity resistance. If the material surface energy is too high then the paint ink or coating may bleed or be difficult to control.

Spreading a b c where. Acrylic acid content increases the surface energy threshold adhesion energy and adhesion hysteresis of psa lns.