supercritical co 2 Fluid Bubbler

Abstract

The present invention relates to a kind of supercritical CO 2 Fluid foamer and foaming method thereof. It solves technical problems such as unreasonable design of the prior art. The supercritical C0 2 The fluid foamer includes a sealed cylinder, a pressurizing device, and a heating medium stored in the sealed cylinder. A cantilevered support tube is connected to the inner wall of the sealed cylinder, and a horizontally arranged The arc-shaped tray is equipped with an autoclave and a sealed cavity is formed between the upper surface of the arc-shaped tray and the bottom of the autoclave. connection, the suspended end of the cantilever support tube is also provided with a stirring device located under the arc-shaped tray, the stirring device is connected with the power supply line passing through the cantilever support tube, and there is also a stirring device in the sealed cylinder. Several heating pipes are distributed in the circumferential direction of the autoclave, and brackets are arranged on the inner bottom of the autoclave. The invention has the advantages of improving the foaming quality.

Description

technical field [0001] The invention belongs to the technical field of foaming, in particular to a supercritical CO 2 Fluid bubbler. Background technique [0002] Supercritical CO 2 The foaming device is a crucial device for the preparation of polymer porous materials. The experimental equipment is mainly composed of four parts: pressurization device, autoclave, heating device and pressure relief device. The preparation of different polymers has different requirements and conditions for the equipment. [0003] Traditional supercritical CO 2 There are mainly the following problems in the preparation of polymer porous materials by foaming devices: [0004] 1. The temperature is unevenly heated. Some foaming experiments require heating with an oil bath, and some require heating with a heating tube. Therefore, when the experimental requirements are different, a single heating design and a device lacking a stirrer will make it difficult for researchers to obtain the expected...

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Problems solved by technology

[0004] 1. The temperature is unevenly heated. Some foaming experiments require heating with an oil bath, and some require heating with a heating tube. Therefore, when the experimental requirements are different, a single heating design and a device lacking a stirrer will make it difficult for researchers to obtain the expected experimental results.

[0005] 2. The airtightness is low, and the support frame is difficult to balance. First, in the traditional device, the material bracket is connected to the autoclave or supported at the bottom of the autoclave, which easily causes problems such as unstable support and low experimental efficiency.

Second, if the exhaust valve adopts a traditional valve, it will easily weaken the airtightness of the device under the condition of high pressure

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