Effect of Erucic Acid Percentage on Slip Properties of Erucamide

Abstract

Erucamide is a fatty acid amide most frequently used to reduce the coefficient of friction (increase slip) of polyolefin films. The erucic acid content of commercial erucamides varies from 80 to 94%. A project has been initiated to determine the effect, if any, that this variation has on slip properties. The performance of erucamide is measured in: • three different butene copolymer linear low-density polyethylenes (LLDPEs) • a hexene copolymer LLDPE • three different low-density polyethylenes (LDPE) Slip is measured on a 1.3 mil blown film. Varying the percentage of erucic acid in erucamide between 80 and 93% did not affect the coefficient of friction in the polymers tested.

Mechanical response of a surface of increasing hardness covered with a nonuniform polymer brush: a numerical simulation model

“…Polymer brushes 1 are useful for many applications, such as to control interactions between nanoparticles 2 and to build functional interfaces for smart coatings; 3 they are present in cell membranes and bone cartilages, 4 as slip agents for plastic sheets 5 and in drug delivery. 6 Although most studies have been carried out for uniform polymer brushes, i.e., those made up of chains of the same length, some have been performed for brushes made up of polydisperse chains.…”

Ab Initio Modeling Of Friction Reducing Agents Shows Quantum Mechanical Interactions Can Have Macroscopic Manifestation

“…Even more, experimental results have shown that the COF depends on the hydrocarbon chain length of the FAs 4,10 , the extrusion time 11 , the surface concentration of FAs 8,9,12 , and the aging of the sample 5,9 . One of the most popular slip agents is erucamide; this fluid-friction reducing molecule is obtained from naturally occurring fats and oils frequently used in the polymer industry [6][7][8][9]13 .…”

“…Additives have been used for years as sliding agents to modify the tribological properties of thin films [1][2][3] . Functionalized polymethylmethacrylate (PMMA) 4 and polyolefines (POs) 3,[5][6][7][8][9] surfaces with brushes composed by fatty acids (FAs) have proved to be useful to reduce the coefficient of friction (COF) of these materials. Even more, experimental results have shown that the COF depends on the hydrocarbon chain length of the FAs 4,10 , the extrusion time 11 , the surface concentration of FAs 8,9,12 , and the aging of the sample 5,9 .…”

“…Functionalized polymethylmethacrylate (PMMA) 4 and polyolefines (POs) 3,[5][6][7][8][9] surfaces with brushes composed by fatty acids (FAs) have proved to be useful to reduce the coefficient of friction (COF) of these materials. Even more, experimental results have shown that the COF depends on the hydrocarbon chain length of the FAs 4,10 , the extrusion time 11 , the surface concentration of FAs 8,9,12 , and the aging of the sample 5,9 . One of the most popular slip agents is erucamide; this fluid-friction reducing molecule is obtained from naturally occurring fats and oils frequently used in the polymer industry [6][7][8][9]13 .…”

“…Even more, experimental results have shown that the COF depends on the hydrocarbon chain length of the FAs 4,10 , the extrusion time 11 , the surface concentration of FAs 8,9,12 , and the aging of the sample 5,9 . One of the most popular slip agents is erucamide; this fluid-friction reducing molecule is obtained from naturally occurring fats and oils frequently used in the polymer industry [6][7][8][9]13 . However, there are other FAs used to reduce the COF, such as behenamide 4,7 , where the only structural difference between these additives is the existence of a double bond between the C-13 and C-14 atoms in the erucamide molecule (see Fig.…”