کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5184647 | 1381053 | 2009 | 10 صفحه PDF | دانلود رایگان |
Single lap shear adhesion measurements on model isotactic polypropylene and thermoplastic polyolefin (TPO) substrates which sandwich a chlorinated polyolefin (CPO) show similar values of the fracture strength, as determined from the stress at break, but much larger deformation at break for the substrates that contain a copolymer of ethylene with 9Â wt% butane (EBR9) as an impact modifier. We also found for sections cut from a large format (300Â ÃÂ 100Â mm) plaque of TPO12 (12Â wt% EBR9), that the fracture energy increased as a function of distance from the gate. ATR-FTIR measurements on these sections indicated that there was a variation in the EBR content in the near-surface region of the substrate, and that stronger adhesion correlated with an increase of EBR content at or near the surface.
Journal: Polymer - Volume 50, Issue 21, 9 October 2009, Pages 5084-5093