What does OPA stand for?

Oriented Polyamide

This definition appears very rarely and is found in the following Acronym Finder categories:

Science, medicine, engineering, etc.

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Samples in periodicals archive:

DISCUSSION Level of Crystalline Orientation In order to describe orientations of normals to (hkl) crystallographic planes in biaxially oriented polyamide 11 films, a pseudo-orthorhombic unit cell (a' = hydrogen bonding plane normal, c' = parallel to the chain axis, b' = perpendicular to the a'-c' plane) was developed.

Development of orientation and mechanical properties of extrusion ...

The new line's multi-material functionality will enable it to process ExxonMobil oriented polypropylene (OPP) films, as well as other flexible substrates, such as polyester, oriented polyamide and oriented high density polyethylene film.

ExxonMobil Chemical Films: New Coater at Virton Extends Packaging ...

CONCLUSIONS A single bubble film blowing operation was successfully used for making oriented polyamide 11 and polyamide 12 films.

Investigation of structure development in polyamide 11 and polyamide ...