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An Investigation into Crystallization and the Subsequent Inelastic Response of Semi-Crystalline Polymers from a Continuum Perspective

An Investigation into Crystallization and the Subsequent Inelastic Response of Semi-Crystalline Polymers from a Continuum Perspective
从连续体角度研究半晶聚合物的结晶和随后的非弹性响应
批准号:
9800510
负责人:
Kumbakonam Rajagopal
金额:
$14.28万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1998
资助国家:
美国
项目状态:
已结题
起止时间:
1998-06-01 至 2001-11-30

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中文摘要
翻译
半结晶聚合物在工业中有多种用途,因为它们能够承受大的变形,同时保持其韧性。这些聚合物的机械、电学和光学性能受其加工条件的影响;特别是温度诱导结晶。起主要作用的一个因素是由温度诱导结晶引起的材料对称性的突变。一个理论上严格的框架,研究温度诱导结晶正在开发中。这个框架提供了一个基础的可靠的数值预测,影响了一些工业应用,包括纤维纺丝,吹膜,模塑和挤出工艺。
英文摘要
Semicrystalline polymers find a variety of uses in the industry due to their ability to undergo large deformations while retaining their toughness. The mechanical, electrical, and optical properties of these polymers are affected by their processing conditions; in particular the temperature induced crystallization. One factor tat plays a major role is the abrupt change in material symmetry caused by temperature induced crystallization. A theoretically rigorous framework for studying the temperature-induced crystallization is being developed. This framework provides a basic for reliable numerical predictions that affect a number of industrial applications including fiber spinning, film blowing, and molding and extrusion processes.
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