Mikrofibrillarverstärkte Verbundwerkstoffe aus Polymermischungen - Fibrillisierung, Isotropisierung, Verarbeitung und Eigenschaften

在项目的第一阶段，重点是：(i)通过控制反应条件来控制基质的化学组成（均聚、嵌段共聚、随机共聚）；（ii）将各种mfc结构的制造原理从实验室规模转移到足够小的生产量，足以制造用于批量测试样品注塑的颗粒；（iii）表征材料的各种机械性能作为共混成分及其微观结构细节的函数。为了本研究的性能，专门使用了缩合型聚合物。在项目的第二阶段，它打算扩展迄今为止收集的经验，即在增容剂作为第三种共混组分的支持下，由聚烯烃和缩聚物共混制备MFC。这样的系统将允许同时应用物理（共结晶）和化学（反应）工具来抑制不相容性。合适的体系是聚丙烯（PP）与聚酰胺6 （PA6）或pa66和化学改性PP（含羧基）作为相容剂的共混物。还将研究仅含聚烯烃（例如来自PP和聚乙烯）的MFC。

During the first period of the projekt the attention was focussed on: (i) control of the chemical composition of the matrix (homopolymeric, block-copolymeric, random copolymeric) by governing the transreaction conditions, (ii) transfer of the manufacturing principle of the various MFC-structures from a lab scale level to a small producion quantity sufficient enough to make granules for injection moulding of bulk test specimens, and (iii) the characterisation of various mechanical properties of the materials as a function of blend composition and their microstructural details. For performance of this study exclusively polymers of condensation type were used. During the second stage of the project it is intended to extend the experience, gathered so far, on MFC's is prepared from blends of polylefines and polycondensates, under support of a compatibilizer as a third blend component. Such systems will allow to apply both physical (co-crystallization) and chemical (transreaction) tools for suppressing the incompatibility. Appropriate systems are blends of polypropylene (PP) with polyamide 6 (PA6) or PA 66 and chemically modified PP (containing carboxyl groups) as compatibilizer. MFC's comprising only polyolefines (e.g. from PP and polyethylene) will be also studied.