Melt crystallization of polypropylene: Effect of contact with fiber substrates

作者：D. Campbell, M. M. Qayyum · 发表于：Journal of Polymer Science Polymer Physics Edition · 年份：1980 · DOI：10.1002/pol.1980.180180107 · 被引用次数：131 · 研究领域：Polymer crystallization and properties、Natural Fiber Reinforced Composites、Textile materials and evaluations

Abstract The isothermal crystallization of isotactic polypropylene at different temperatures in the presence of fibrous substrates has been investigated. It is shown that preferential transcrystalline growth occurs at the fiber surface and that changes in nucleation density in the bulk material adjacent to the fibers also occur, the extent of which is dependent on temperature and fiber volume fraction. The effects are discussed in terms of the diffusion of heterogeneities in the bulk due to interaction and the adsorption on the fibers.