The preparation and properties of dynamic vulcanized PP/metallocene PE blend

• Main Authors: Tsung-Yu Chiu, 邱宗鈺
• Other Authors: Wen-Chih Chen
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/78841535476602349813

碩士 === 中國文化大學 === 材料科學與製造研究所 === 91 === Dynamic vulcanized PP/metallocene PE (mPE) blends were prepared in a laboratory internal mixer. Gel contents increase with increasing Dicumyl peroxide (DCP) concentrations. As degree of vulcanization increases, melting temperature and crystallinity slightly decrease. It is found, there seems to have a lowest value in tensile strength as the degree of cure increases at a given temperature. Thus factors of vulcanization would affect the tensile strength. On the other hand, tear strength continues to decrease under a specific degree of cure. In short, the variation of crystallization through a different degree of vulcanization would contribute to the strength of blend as well. Both factors (crosslinking and crystallization) would affect the ultimate properties (tensile, tearing and cutting strength) of resulting blend.