Coefficients of dynamic friction for low density polyethylene | Zendy

Spalding Mark A. | Zendy; Kirkpatrick Donald E. | Zendy; Hyun Kun S. | Zendy

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Coefficients of dynamic friction for low density polyethylene

Author(s) -

Spalding Mark A.,

Kirkpatrick Donald E.,

Hyun Kun S.

Publication year - 1993

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.760330708

Subject(s) - materials science , composite material , low density polyethylene , polyethylene , dynamical friction , friction coefficient , high density polyethylene , polymer science

The coefficient of dynamic friction is often the controlling factor for solids conveying, pressure generation, and thermal decomposition of a resin in the feed section of a single‐screw plasticating extruder. The coefficients of friction are, however, very poorly understood, and the interpretation of the measurements are complicated by the dissipation of frictional energy at the sliding interface. A new instrument was recently built to help understand dynamic friction, and a numerical technique was developed to estimate the interface temperature. The coefficients of dynamic friction for a low‐density polyethylene resin are presented in this paper as a function of the surface temperature, pressure, and velocity.

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