本文選題：超聲塑化　切入點(diǎn)：界面摩擦生熱速率　出處：《中國(guó)塑料》2017年08期 　論文類型：期刊論文

【摘要】：為分析超聲塑化非晶聚合物顆粒的界面摩擦生熱過(guò)程和超聲塑化參數(shù)對(duì)界面摩擦生熱速率的影響,利用LS-DYNA程序和Ansys仿真模擬了界面摩擦生熱過(guò)程。結(jié)果表明,超聲頻率、超聲振幅和塑化壓力的增加可顯著提高聚合物顆粒的界面摩擦生熱速率,其中超聲振幅對(duì)界面摩擦生熱速率的影響更顯著;當(dāng)超聲振幅為20μm,超聲頻率為30kHz,塑化壓力為0.8kN時(shí),在0.05278s內(nèi)聚合物局部溫度升高到224.5℃,生熱速率達(dá)到3874.5℃/s,得到界面摩擦生熱是瞬態(tài)過(guò)程。
[Abstract]:In order to analyze the interface friction heat generation process of ultrasonic plasticized amorphous polymer particles and the effect of ultrasonic plasticizing parameters on the interface friction heat generation rate, the interface friction heat generation process was simulated by using LS-DYNA program and Ansys. The increase of ultrasonic amplitude and plasticizing pressure can significantly increase the interfacial friction heat generation rate of polymer particles, especially when the ultrasonic amplitude is 20 渭 m, the ultrasonic frequency is 30 kHz, and the plasticizing pressure is 0.8 kN, especially when the ultrasonic amplitude is 20 渭 m, the ultrasonic frequency is 30 kHz, and the plasticizing pressure is 0.8 kN. The local temperature of the polymer increases to 224.5 鈩，

本文編號(hào)：1612947