Abstract

An apparatus is described that allows studying various physical and chemical processes in the atmosphere of supercritical carbon dioxide at pressures of up to 25 MPa and temperatures of up to 100°C. The apparatus is based on a compact modular cylindrical high-pressure reactor with a diameter of 90 mm and a height of 100 mm with an internal volume of 14 cm³. It is equipped with eight optical ports, a system for measuring and adjusting the pressure and temperature, as well as a system for letting in and gradually reducing the pressure of the test medium. In addition, the reactor is equipped with two video cameras with a resolution of 1920 × 1080 pixels, which allow video recording of processes occurring in the reactor volume, which is synchronized with the pressure and temperature data recording system. The efficiency of the described apparatus is demonstrated by studying the processes of plasticization and foaming of polymer materials in the medium of supercritical carbon dioxide.

中文翻译：

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用于研究超临界介质中高分子材料的增塑和发泡过程的设备

摘要

描述了一种装置，其允许在超临界二氧化碳的气氛中以高达25 MPa的压力和高达100°C的温度研究各种物理和化学过程。该设备基于一个紧凑的模块化圆柱形高压反应器，该反应器的直径为90 mm，高度为100 mm，内部容积为14 cm ³。它配备有八个光学端口，一个用于测量和调节压力和温度的系统以及一个用于逐渐降低测试介质压力的系统。此外，反应堆配备了两个分辨率为1920×1080像素的摄像机，可以对反应堆容积中发生的过程进行视频记录，并与压力和温度数据记录系统同步。通过研究超临界二氧化碳介质中聚合物材料的增塑和发泡过程，证明了所述装置的效率。