Abstract:
The interfacial shear strength values of glass fiber/polypropylene specimen which were prepared at different cooling rates, and the interfacial crystallization of glass fiber/polypropylene were investigated. It was discovered that the transcrystallization only appeared when the specimen was cooled down slowly and good adhesion existed between glass fiber and polypropylene. The author gave explanation of the forming mechanism of transcrystallization was given and it was pointed out that the interfacial strength could be strongly decreased when transcrystals appeared. The forming mechanism of trans crystallization was confirmed by the special impingement line between the transcrystal and crystal of polypropylene.