Effects of Slip and Antiblock Additives on the Oxygen Transmission Rate of Highly Permeable Polyolefin Plastomer Films, 1998 Polymers, Laminations & Coatings Conference Proceedings
Slip and antiblock additives were determined to reduce significantly the oxygen, carbon dioxide, and water vapor transmission rates for highly permeable blown films made from polyolefin plastomers. A typical use for highly permeable films is in the packaging of fresh-cut produce, where the oxygen and carbon dioxide transmission rates of the film are critical performance requirements. At typical usage levels of 2500 ppm erucamide slip and 5000 ppm SiO2 antiblock, for example, oxygen transmission through a 0.8965 g/cm3 plastomer film is approximately 25% less than through a film containing no slip or antiblock additives. Other properties, such as optics and coefficient of friction also are affected by the addition of slip and antiblock.