Standard Test Method for Abrasion Resistance of Flexible Packaging Films Using a Reciprocating Weighted Stylus

Importancia y uso:

5.1 Materials such as engineered thermoplastic films are often used for flexible barrier packaging. However, handling and transportation can cause abrasion to the packaging film and possibly compromise the integrity of the contents (for example, sterility of a medical device). This test method provides a comparative ranking of material performance that can be used as an indication of relative end-use performance.

5.2 The resistance of material surfaces to abrasion, as measured on a testing machine under laboratory conditions, is only one of several factors contributing to wear performance or durability as experienced in the actual use of the material. While abrasion resistance and durability are frequently related, the relationship varies with different end uses and different factors may be necessary in any calculation of predicted durability from specific abrasion data.

5.3 The resistance of material surfaces to abrasion may be affected by factors including test conditions of temperature and humidity, type of abradant, pressure between the specimen and abradant, mounting or tension of the specimen, and type, kind, or amount of finishing materials such as coatings or additives. Other causes of variation include local material movement during testing, material direction alignment, material characteristics, and mandrel and stylus wear. For consistency, samples to be evaluated under special environmental conditions shall be conditioned under those same conditions. It is important that the test instrument be shown to operate properly under special environmental conditions.

5.4 This test method may not be suitable for all films, including the following cases:

5.4.1 Films that stretch and generate a ripple in the abraded region during testing,

5.4.2 Films that have a thickness greater than 0.25 mm (0.010 in.), or are of such rigidity that forming over the mandrel would cause internal stresses that weaken the film, and

5.4.3 Conductive films.

Subcomité:

F02.20

Referida por:

F2097-23, F2097-23

Volúmen:

15.10

Número ICS:

55.040 (Packaging materials and accessories)

Palabras clave:

abraser; abrasion; abrasion resistance; flexible film; linear abrader; packaging; wear;