Thin-walled Micromolding

薄壁微成型

• 批准号: 7051799
• 负责人: DENNIS P TULLY
• 金额: $ 33.69万
• 依托单位: MINIATURE TOOL AND DIE
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-06-01 至 2008-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7051799
• 关键词: bioengineering /biomedical engineering; biomedical equipment development; fluid flow; microinjections; miniature biomedical equipment; nanotechnology; physical property; polymers; technology /technique development

DESCRIPTION (provided by applicant): Currently, there is a serious disconnect between macro and micro injection molding industry. Manufacturers' polymer material data sheets that predict the physical and mechanical properties including flow do not predict properties below 0.020" thickness.. Since properties have proven to be non-linear in thin-walled applications, data below 0.020" may not be able to be accurately predicted. Although there are numerous ASTM standards for material property characterization of macro injection molded parts, none exist for micro- molding. The goal of this proposal is to predict the flow of polymer materials into micro cavities with nano volume features. This information will accelerate the design of thin-walled (<0.010") micro injection moldable parts for numerous commercial applications. In order to achieve this goal we will start by creating standards to evaluate the physical properties of materials with wall thicknesses of <0.010". These same standards would be useful in characterizing new enhancements or processes in material science. In Phase I, we will begin to investigate and characterize one such process. We will compare "neat" to "treated" polymer performance in the production of thin-walled micro injection molded samples.

描述（申请人提供）：目前，宏观注塑行业与微观注塑行业脱节严重。预测包括流动在内的物理和机械性能的制造商聚合物材料数据表无法预测厚度低于 0.020" 的性能。由于性能已被证明在薄壁应用中是非线性的，因此可能无法预测低于 0.020" 的数据。准确预测。尽管有许多用于宏观注塑零件材料性能表征的 ASTM 标准，但没有一个适用于微注塑的标准。该提案的目标是预测聚合物材料流入具有纳米体积特征的微腔。这些信息将加速用于众多商业应用的薄壁（<0.010"）微型注塑零件的设计。为了实现这一目标，我们将首先创建标准来评估壁厚<0.010"的材料的物理性能。 。这些相同的标准将有助于描述材料科学中新的增强或过程。在第一阶段，我们将开始研究并描述这样一个过程。我们将比较“纯”与“处理”聚合物在薄壁微注塑样品生产中的性能。