SALS study on transcrystallization and fiber orientation in glass fiber/polypropylene composites

Autor:	Kun Na, Jong Kwan Lee, Hong Youn Won, Han Soo Park, Kwang Hee Lee, Byung Suk Jin, Joo Young Nam
Rok vydání:	2006
Předmět:	Polypropylene Materials science Polymers and Plastics General Chemical Engineering Organic Chemistry Glass fiber Composite number Streak Nanochemistry Light scattering chemistry.chemical_compound chemistry Materials Chemistry Fiber Composite material Layer (electronics)
Zdroj:	Macromolecular Research. 14:499-503
ISSN:	2092-7673 1598-5032
DOI:	10.1007/bf03218715
Popis:	This report presents a new technical approach for evaluating the fiber orientation of composites using small-angle light scattering (SALS). Glass fiber (GF)/polypropylene (PP) composites with different fiber orientations were prepared by drawing compression-molded specimens. The drawn samples were remelted and then annealed at 150 °C in order to induce a crystalline structure on the fiber surface, and then underwent SALS analysis. The samples showed a combination of circular and streak patterns. The model calculations demonstrated that the number of nuclei on the fiber surface and the thickness of the transcrystalline layer affected the sharpness and intensity of the streak pattern. In addition, the azimuthal angle of the streak pattern was found to be dependent on the direction of the transcrystalline layer, which correlated with the fiber direction. This correlation suggests that the fiber orientation in the composites can be easily evaluated using SALS.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1bd90249cd26aa0fed51664ff86711ba https://doi.org/10.1007/bf03218715 Zobrazit plný text záznamu Full text from SpringerLink