Patent · US Active

Instrument for measuring the intrinsic strength of polymeric materials via cutting

US10054525B2 · kind B2 · utility

0Cited by
2References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 27, 2016
Grant dateAug 21, 2018
Priority date—
Expiry dateAug 6, 2036

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2203/0092
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A testing instrument and method for measuring the intrinsic strength of polymeric materials via cutting includes a pair of mechanical clamps connected at a base to low-friction hinges. The clamps are configured to secure the elongate edges of a polymer specimen, and to periodically load the specimen to a predetermined strain. The load on the specimen while strained is measured with an opening force load sensor. While in the strained condition, the specimen is cut with a highly sharpened blade, and the cutting force also measured by a cutting force load sensor. A cutting energy curve may be plotted from these measurements, from which a cutting energy can further be derived.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.