| 查看: 425 | 回复: 0 | |||
[交流]
简单模型和湿度冷却速率使得等温结晶变得容易
|
|
An understanding of the kinetics of the crystallization process is important for the selection of processing parameters such as mold temperature and hold time during injection molding. Differential scanning calorimetry (DSC), is an excellent tool for following the progress of crystallization. A popular method for obtaining kinetics data known as isothermal crystallization, is based on rapidly cooling the sample from the melt to the crystallization temperature and then measuring the heat evolved while the sample is held isothermal. The model most often applied to isothermal crystallization data is the Avrami model. This model, while possessing physically significant parameters, is somewhat difficult to analyze. In this study, a simpler kinetic model, the Sestak-Berggren model, is applied to crystallization kinetics. The equivalency of the resultant kinetic parameters to those from the Avrami model is demonstrated. Furthermore, it is shown that modest cooling rates, as low as 5oC/minute, may be used to obtain good kinetic results. |
回复此楼» 本帖附件资源列表
-
欢迎监督和反馈：小木虫仅提供交流平台，不对该内容负责。
本内容由用户自主发布，如果其内容涉及到知识产权问题，其责任在于用户本人，如对版权有异议，请联系邮箱：xiaomuchong@tal.com - 附件 1 : 简单模型和适度冷却速率使得等温结晶变得容易.PDF
2017-03-02 10:36:54, 290.38 K
» 猜你喜欢
有多少人是今天查系统知道结果的？
已经有17人回复
-
国自然面上复盘~欢迎讨论
已经有6人回复
-
售SCI一区文章，我:8.O.551.O.5.4,科目全,可伽急
已经有4人回复
-
售SCI一区T0P文章，我:8.O.55.1.O.54,科目齐全,可+急
已经有4人回复
-
基金不中，共勉
已经有5人回复
-
看板上这么多中的，有点像50人群里49个人都是骗子的那种感觉……
已经有3人回复
-
我不理解！
已经有23人回复
-
2026年的国家社科基金项目通讯评审的新规则与新动向、新挑战
已经有10人回复
-
系统查不到
已经有10人回复
-
怎么查啊
已经有5人回复
投票:
