Shear and Pressure Effects on the Crystallization Kinetics of Semi Crystalline Polymers

剪切和压力对半结晶聚合物结晶动力学的影响

• 批准号: 9214803
• 负责人: Rosemarie Wesson
• 金额: $ 9万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-01 至 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9214803&HistoricalAwards=false
• 关键词: Shear; Pressure; Effects; Crystallization; Kinetics

Funded with a Minority Research Initiation Grant (MRI), crystallization rates for crystalline polymers will be investigated for their sensitivity to flow-induced effects. The primary interest is in the effect of shear. The study will explore the relationship between shear stress, shear rate, viscosity, and crystallization rate as a function of temperature for several polymers. The approach is experimental and also by way of modeling. The injection molding process will be modeled and the results compared to experimental findings. Crystalline polymers, and the injection molding process, are important elements in the polymer manufacturing industry. This research will add to the capability to control product and process with greater accuracy and confidence.

由少数民族研究启动补助金（MRI）资助， 将研究结晶聚合物的结晶速率 因为它们对流动诱导效应的敏感性。 主要利益 受到剪切力的影响 这项研究将探讨 剪切应力、剪切速率、粘度和结晶 速率作为温度的函数对于几种聚合物。 的 方法是实验性的，也是通过建模的方式。 注射 将对成型过程进行建模，并将结果与 实验发现。 结晶聚合物和注塑工艺是 聚合物制造业的重要组成部分。 这 研究将增加控制产品和过程的能力 更加准确和自信。