Encyclopedia

Izod test

Izod test

[′ī‚zäd ‚test]
(metallurgy)
An impact test in which a falling pendulum strikes a fixed, usually notched specimen with 120 foot-pounds (163 joules) of energy at a velocity of 11.5 feet (3.5 meters) per second; the height of the pendulum swing after striking is a measure of the energy absorbed and thus indicates impact strength.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
Figure 4 compares data obtained from the notched Izod test for neat PLA and the two PB blends.
Creating super-tough, bio-based polylactic acid materials: blending tests with MDI coupling agent yield interesting results
The most popular test in North America is the notched Izod test while the counterpart that seems to be currently favored in Europe is the Charpy test.
The problems with single-point data: in plastics, notched Izod and Charpy test results have been complicated by the way they are reported
The position of the brittle/tough transition in terms of rubber content determined by the standard notched Izod test is basically the same as that determined by the EWF procedure.
Toughening and brittle-tough transition in polyamide 12-organoclay/maleated styrene-ethylene-co-butylene-styrene nanocomposites
At higher concentrations and temperatures above the glass transition temperature (-28 degC), a no break point in the Notched Izod test can be achieved.
Speciality elastomers aid the formulation of polyolefin compounds
The previously discussed tests are static mechanical properties tests, whereas the Izod test is dynamic.
Limitations of Standardized Tests
There is also a specimen support--a vise for the Izod test and an anvil for the Charpy test.
IMPACT: Which Test to Use? Which Instrument to Buy?
The notched impact strength obtained by the Izod test as a function of EPDM-g-MA composition for PTT/EPDM-g-MA blends is shown in Fig.
Toughened poly(trimethylene terephthalate) by blending with a functionalized ethylene-propylene-diene copolymer
As the whitened area of the Izod test piece, the proportion (%) of the area of a whitened portion to the total broken area (fixed) of the test piece is obtained.
Izod Impact Strength of a Product Molded of Poly(Vinyl Chloride)/Impact Modifier Containing Voids (Void MOD)
Finally, with these mechanisms, MMA/ST resin/MOD molding Izod test results are explained.
The Izod Impact Strength of Modified Methyl Methacryate/Styrene Copolymer Molding and the Toughening Mechanism
The polyethylenes were not broken in the Izod test, and toughnesses were apparently very high; see Table 2.
Mechanical tests and results
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