Structural development and mechanical properties of polyethylene naphthalate/polyethylene terephthalate blends during uniaxial drawing
| Autor: | Syozo Murakami, Elinor L. Bedia, Taku Kitade, Shinzo Kohjiya |
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| Jazyk: | angličtina |
| Rok vydání: | 2001 |
| Předmět: |
Quenching
Materials science genetic structures Polymers and Plastics education Organic Chemistry oriented crystallization law.invention Amorphous solid chemistry.chemical_compound chemistry law in situ WAXD measurement Ultimate tensile strength Materials Chemistry Polyethylene terephthalate Polymer blend Crystallization Composite material Polyethylene naphthalate Necking PEN/PET blend film |
| Zdroj: | POLYMER. 42(17):7299-7305 |
| ISSN: | 0032-3861 |
| Popis: | The blends of poly(ethylene naphthalate) (PEN) and poly(ethylene terephthalate) (PET) were obtained by melt blending at 310°C for 2 min and quenching into an ice water. Mechanical properties and structural formation of unoriented amorphous PEN/PET blend films during drawing at 85, 100 and 130°C were studied by tensile tests and in situ X-ray measurements. The results obtained were compared with the pure PEN and PET. The PET film could not be drawn due to partial melt at above 100°C and a lower drawing rate but the film blended with PEN was possible to be drawn. The crystallization of PEN/PET blend during drawing proceeded gradually due to the effect of PET at 100°C though the crystalline reflections in the crystallization of pure PEN appeared suddenly by necking. This was evidenced by the formation of α-form crystalline reflections of PEN as detected by in situ X-ray measurements. |
| Databáze: | OpenAIRE |
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