A fundamental study of adhesive reliability - a study of PBT-epoxy adhesive interface -

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A fundamental study of adhesive reliability - a study of PBT-epoxy adhesive interface -

Aoki, Takashi / Okamoto, Yasushi / Izumi, Takao / Kato, Kazuo / Tanaka, Keiji / Takahara, Atsushi / Kajiyama, Tisato

Poly(butylene terephthalate) (PBT), which is a typical engineering plastic, has been widely used for electrical components and also automobile parts due to its heat resistance and dimensional stability. In general, PBT should be annealed to obtain high dimensional stability at a temperature above the glass transition temperature prior to practical use In this study, influence of annealing treatment on adhesion behavior of PBT with epoxy adhesive was studied. The tensile adhesive strength decreased after the annealing treatment of PBT. In the case of the untreated PBT, the failure depth after the failure was not clearly defined. Once the PBT was annealed, the average failure depth was 3.8 nm. The above results imply that the failure mechanism for the system transformed from interfacial failure to cohesive failure upon annealing treatment. This can be easily understood by taking into account that a mechanically weak layer is formed in the surface region of PBT after the annealing. Such a weak boundary layer was observed by grazing incidence X-ray diffraction measurement.

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Dokumentinformationen

Titel :

A fundamental study of adhesive reliability - a study of PBT-epoxy adhesive interface -

Beteiligte:

Aoki, Takashi (Autor:in) / Okamoto, Yasushi (Autor:in) / Izumi, Takao (Autor:in) / Kato, Kazuo (Autor:in) / Tanaka, Keiji (Autor:in) / Takahara, Atsushi (Autor:in) / Kajiyama, Tisato (Autor:in)

Erschienen in:

Review of Automotive Engineering (JSAE) ; 28 , 1 ; 73-79

Erscheinungsdatum :

2007

Format / Umfang :

7 Seiten, 16 Bilder, 2 Tabellen, 13 Quellen

ISSN :

1349-4724

Medientyp :

Aufsatz (Zeitschrift)

Format :

Sprache :