A mathematical model of surface tension for fluoropolymer modified polyacrylate emulsion was established by using the statistic method in this paper.The surface tension for emulsion was relative to the volume fraction...A mathematical model of surface tension for fluoropolymer modified polyacrylate emulsion was established by using the statistic method in this paper.The surface tension for emulsion was relative to the volume fraction of mixed monomer,water and fluoropolymer powder dosage in the mathematical model.Attention was focused on the statistics of experimental data instead of the calculation of subtle complex thermodynamic processes.Good agreement was obtained between calculated data and experimental data.The relative error was less than 10%.As a practical method, the surface tension predicted by the mathematical model presented in this paper can be used to predict other important properties of emulsion film.展开更多
While illustrating the process and the essence of listening and analyzing various subjective and objective barriers in listening, the author tries to show that English learners can improve their quality of listening c...While illustrating the process and the essence of listening and analyzing various subjective and objective barriers in listening, the author tries to show that English learners can improve their quality of listening comprehension by transferring the negative elements to the positive ones.展开更多
文摘A mathematical model of surface tension for fluoropolymer modified polyacrylate emulsion was established by using the statistic method in this paper.The surface tension for emulsion was relative to the volume fraction of mixed monomer,water and fluoropolymer powder dosage in the mathematical model.Attention was focused on the statistics of experimental data instead of the calculation of subtle complex thermodynamic processes.Good agreement was obtained between calculated data and experimental data.The relative error was less than 10%.As a practical method, the surface tension predicted by the mathematical model presented in this paper can be used to predict other important properties of emulsion film.
文摘While illustrating the process and the essence of listening and analyzing various subjective and objective barriers in listening, the author tries to show that English learners can improve their quality of listening comprehension by transferring the negative elements to the positive ones.
