ASTM D1894-14
Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting

Standard No.

ASTM D1894-14

Release Date

2014

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D1894-14

Scope

4.1 Measurements of frictional properties may be made on a film or sheeting specimen when sliding over itself or over another substance. The coefficients of friction are related to the slip properties of plastic films that are of wide interest in packaging applications. These methods yield empirical data for control purposes in film production. Correlation of test results with actual performance can usually be established.

4.1.1 This test method includes testing at temperatures other than 23°C by heating only the plane while the sled is at ambient temperature.

4.2 Slip properties are generated by additives in some plastic films, for example, polyethylene. These additives have varying degrees of compatibility with the film matrix. Some of them bloom, or exude to the surface, lubricating it and making it more slippery. Because this blooming action may not always be uniform on all areas of the film surface, values from these tests may be limited in reproducibility.

4.3 The frictional properties of plastic film and sheeting may be dependent on the uniformity of the rate of motion between the two surfaces. Care should be exercised to ensure that the rate of motion of the equipment is as carefully controlled as possible.

4.4 Data obtained by these procedures may be extremely sensitive to the age of the film or sheet and the condition of the surfaces. The blooming action of many slip additives is time-dependent. For this reason, it is sometimes meaningless to compare slip and friction properties of films or sheets produced at different times, unless it is desired to study this effect.

4.5 Frictional and slip properties of plastic film and sheeting are based on measurements of surface phenomena. Where products have been made by different processes, or even on different machines by the same process, their surfaces may be dependent on the equipment or its running conditions. Such factors must be weighed in evaluating data from these methods.

4.6 The measurement of the static coefficient of friction is highly dependent on the rate of loading and on the amount of blocking occurring between the loaded sled and the platform due to variation in time before motion is initiated.

4.7 Care should be exercised to make certain that the speed of response of the recorder, either electronic or mechanical, is not exceeded.

4.8 For many materials, there may be a specification that requires the use of this test method, but with some procedural modifications that take precedence when adhering to the specification. Therefore, it is advisable to refer to that material specification before using this test method. Table 1 of Classification System D4000 lists the ASTM materials standards that currently exist.

1.1 This test method covers determination of the coefficients of starting and sliding friction of plastic film and sheeting when sliding over itself or other substances at specified test conditions. The procedure permits the use of a stationary sled with a moving plane, or a moving sled with a stationary plane. Both procedures yield the same coefficients of friction values for a given sample.

Note 1—For the frictional characteristics of plastic films partially wrapped around a cylinder, or capstan, see Test Method G143 under th......

ASTM D1894-14 Referenced Document

• ASTM D3574 Standard Test Methods for Flexible Cellular Materials8212;Slab, Bonded, and Molded Urethane Foams
• ASTM D4000 Standard Classification System for Specifying Plastic Materials
• ASTM D618 Standard Practice for Conditioning Plastics for Testing
• ASTM D883 Standard Terminology Relating to Plastics
• ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• ASTM G143 Standard Test Method for Measurement of Web/Roller Friction Characteristics

ASTM D1894-14 history

• 2014 ASTM D1894-14 Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting
• 2011 ASTM D1894-11e1 Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting
• 2011 ASTM D1894-11 Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting
• 2008 ASTM D1894-08 Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting
• 2006 ASTM D1894-06 Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting
• 2001 ASTM D1894-01 Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting
• 2000 ASTM D1894-00 Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting