Food adhesion is an important attribute that could have both positive and negative ramifications depending on the application. Yet, its quantification remains cumbersome and as a consequence adhesion models are scarce. The effect of surface roughness, free energy, and @entity1787 treatment on adhesion of rough low linear density @entity691 films was investigated. Adhesion was measured by a 180 degrees peel strength test. The plastic films were roughened (surface roughness ratio, r, ranged from 1.00 to 1.15). Exposing the film to @entity1787 treatment (0 to 300 s) modified its surface free energy, gamma(s) (32.4 to 37.9 mJ/m(2), respectively), and its polar component of the surface free energy, gamma(p)(s) (3.0 to 8.3 mJ/m(2), respectively). The films were coated with @entity2636 capable of forming @entity3884 bonds. Adhesion was found to be a function of the apparent contact angle of water, theta(ap[water]), surface roughness ratio, and surface free energy. The linear relationship between the apparent contact angle of water, theta(ap[water]), and gamma(p)(s) was incorporated in building an empirical model that quantifies peel strength as function of r and gamma(p)(s). The model showed good agreement with experimental data, especially for longer @entity1787 exposures and rougher surfaces. The empirical model provides insight into the relationships between surface roughness, surface energy, and adhesion. Quantifying these effects could facilitate reducing biofilm forming on food equipment, antisticking treatments, or easy peel packages, or reducing food residues adhering to the food packages and consequently minimize oxidation, off flavors, and waste.

Adhesion modeling on rough low linear density XXXX .

@entity691 :: ('MESH:D020959', 'Chemical') :: ['polyethylene'] @entity2636 :: ('MESH:D011140', 'Chemical') :: ['polyurethane'] @entity1787 :: ('MESH:D010126', 'Chemical') :: ['ozone'] @entity3884 :: ('MESH:D006859', 'Chemical') :: ['hydrogen']
@entity691 :: (MESH:D020959,Chemical) :: ['polyethylene']
