Reactive and conventional processing of polymers

聚合物的反应式和常规加工

• 批准号: 105738-2007
• 负责人: Tzoganakis, Costas
• 金额: $ 2.43万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=362091
• 关键词: Reactive; conventional; processing; polymers

Extrusion is a very important polymer processing operation. Conventional extrusion involves melting, homogenizing and shaping of polymeric materials into continuous final plastic products such as films and fibres. Reactive extrusion combines the previously mentioned operations with reaction(s) in the molten polymer for the purpose of producing new materials with enhanced properties. Typical applications involve reactive blending, addition of functional groups on otherwise inert polymers, and modification of molecular weight and structure. Each operation is governed by underlying interactions between material properties and processing conditions. The main thrust in the proposed research program is the  fundamental understanding of these interactions in industrially important reactive and conventional polymer processing operations.Understanding of these complex phenomena can lead to optimal design and operation of advanced polymer extrusion processes for the purpose of producing novel polymeric materials/structures with enhanced properties. The objective of the research work proposed in this application is to study : (i) reactive extrusion operations for the chemical modification and upgrade of polymeric materials, (ii) novel conventional and reactive extrusion operations employing supercritical fluids, (iii) mixing phenomena in polymer extrusion, and ( iv) advanced film extrusion operations. As a result of these studies, mechanistic process models will be developed to relate application properties to processing conditions. The outcome of the proposed research plan will benefit polymer resin manufactures, plastics processors, and processing equipment manufacturers. It will advance our knowledge in the area of polymer processing/manufacturing technology and more specifically in the important sectors of reactive polymer extrusion, polymer blending and polymer extrusion with supercritical fluids . Such knowledge will boost the competitiveness of the Canadian industry by helping in the evolution of technology related to polymer chemical modification, mixing, and polymer compatibilization, elements deemed crucial by the industry for the next phase of technical and market development in plastics.

挤出是一种非常重要的聚合物加工操作。传统的挤出涉及将聚合物材料熔化、均质化和成型为连续的最终塑料产品，例如薄膜和纤维。反应挤出将前面提到的操作与熔融聚合物中的反应相结合，以生产具有增强性能的新材料。典型应用包括反应性共混、在惰性聚合物上添加官能团以及分子量和结构的改性。每个操作都受到材料属性和加工条件之间的潜在相互作用的控制。拟议研究计划的主旨是对工业上重要的反应性和传统聚合物加工操作中的这些相互作用的基本理解。对这些复杂现象的理解可以导致先进聚合物挤出工艺的优化设计和操作，以生产具有增强性能的新型聚合物材料/结构。本申请提出的研究工作的目的是研究：（i）用于聚合物材料化学改性和升级的反应挤出操作，（ii）采用超临界流体的新型传统和反应挤出操作，（iii）聚合物挤出中的混合现象，以及（iv）先进的薄膜挤出操作。这些研究的结果是，将开发机械工艺模型，将应用特性与加工条件联系起来。拟议研究计划的结果将使聚合物树脂制造商、塑料加工商和加工设备制造商受益。它将提高我们在聚合物加工/制造技术领域的知识，更具体地说是在反应性聚合物挤出、聚合物共混和超临界流体聚合物挤出等重要领域的知识。这些知识将有助于聚合物化学改性、混合和聚合物相容性相关技术的发展，从而提高加拿大工业的竞争力，该行业认为这些要素对于塑料下一阶段的技术和市场发展至关重要。