Study the Effects of Dilution on the Viscoelastic Behavior of Polymers

研究稀释对聚合物粘弹性行为的影响

• 批准号: 8517120
• 负责人: Donald Plazek
• 金额: $ 21.91万
• 依托单位: University of Pittsburgh
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-03-01 至 1991-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8517120&HistoricalAwards=false
• 关键词: Study; Effects; Dilution; Viscoelastic; Behavior

The effect of dilution (plasticization) of polymers on their mechanical response is important for practical application such as in the manufacture of paints and adhesives. If polymer produces a local modification of solvent or base stock, it is possible that many applications of polymers are useful because the modifications of the solvent itself are highly desirable. One case in point is the role of polymer additives used in lubricating oils; this may be a major factor in the improved properties observed for polymer-loaded oils. This research will study the effect of diluation and solvent type on the viscoelastic behavior of two linear amorphous polymers polystyrene and poly (ethyl Ethylens). Creep and creep recovery along the differential scanning calorimetne and ahaltometric measurements will be made. The study will provide the data base for a variety of system parameters used to develop theortical representation of the effect or polymer solvent thermodynamies on the iscoelastic properties of polymers.

聚合物的稀释(增塑)对其机械响应的影响对于实际应用非常重要，例如在涂料和粘合剂的制造中。如果聚合物产生溶剂或基础油的局部改性，聚合物的许多应用可能是有用的，因为溶剂本身的改性是非常可取的。一个恰当的例子是润滑油中使用的聚合物添加剂的作用；这可能是观察到的聚合物负载油性能改善的一个主要因素。本研究将研究膨胀和溶剂类型对两种线性无定形聚合物聚苯乙烯和聚乙基乙烯粘弹性行为的影响。将进行沿差示扫描量热仪和全息测量的蠕变和蠕变恢复。这项研究将为各种系统参数提供数据基础，这些参数用于开发聚合物溶剂热力学对聚合物等弹性性质的影响的理论表示法。