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

微纤丝增强聚合物共混复合材料 - 原纤化、各向同性、加工和性能

• 批准号: 5259286
• 负责人: Professor Dr.-Ing. Klaus Friedrich (†)
• 金额: --
• 依托单位: Leibniz-Institut für Verbundwerkstoffe (IVW)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 1996
• 资助国家: 德国
• 起止时间: 1995-12-31 至 2003-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5259286?language=en
• 关键词: Mikrofibrillarverst; rkte; Verbundwerkstoffe; aus; Polymermischungen

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.

在该项目的第一阶段，注意力集中在：（i）控制基质的化学成分（ii）将各种MFC-结构的制造原理从实验室规模水平转移到足以制造用于注射成型散装试样的颗粒的小生产量，和（iii）表征材料的各种机械性能作为共混物组成及其微观结构细节的函数。对于本研究的性能，仅使用缩合型聚合物。在该项目的第二阶段，旨在扩展迄今为止收集的关于MFC的经验，MFC是在增容剂作为第三共混组分的支持下由聚烯烃和缩聚物的共混物制备的。这样的系统将允许应用物理（共结晶）和化学（transreaction）工具来抑制不相容性。合适的体系是聚丙烯（PP）与聚酰胺6（PA 6）或PA 66的共混物以及作为相容剂的化学改性PP（含有羧基）。还将研究仅包含聚烯烃（例如来自PP和聚乙烯）的MFC。