Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1979-07-13
1981-04-28
Myracle, Jerry W.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
73 156, G01N 308
Patent
active
042638119
ABSTRACT:
Method and apparatus for measuring the normal stress required to remove an adhering thermoplastic rod from a substrate. Tensile strength of a bond can be measured reproducibly under controlled conditions. The tip of a thermoplastic rod, machined to a cone, is lowered into contact with a heated substrate and melting of the rod is allowed to proceed to a steady-state condition. After a bond is formed, the force required to break the bond is measured. The method permits rapid simulation of the essential conditions present during bond formation between a mineral filler surface and a polymer matrix.
REFERENCES:
patent: 2763149 (1956-09-01), Long et al.
patent: 3214971 (1965-11-01), Hammond Jr.
patent: 3590631 (1971-07-01), Gonze
Myracle Jerry W.
Shell Oil Company
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