Unlock instant, AI-driven research and patent intelligence for your innovation.

Exhaust method of casting film liquid

A method of degassing and casting liquid technology, which is applied in the direction of liquid degassing, separation methods, chemical instruments and methods, etc., can solve the problems of affecting the quality of finished products, insufficient exhaust, etc., and achieve the effect of improving the quality of casting films

Inactive Publication Date: 2011-07-27
上海蓝蔚科技发展有限公司
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this treatment method is not exhausted enough, and there is still a certain amount of gas in the casting solution, resulting in a large number of air bubbles in the finished product and affecting the quality of the finished product, or it can only be made into a low-end film

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The venting method of the casting solution of the present invention, the casting solution is usually made by mixing multiple materials, and the diameter of the particles in the casting solution is generally below 10mm; the method first blends isopropanol solvent in the casting solution, so that The mass ratios of the isopropanol solvent and the casting solution are 30%-50% and 50%-70% respectively, and the casting solution blended with the isopropanol solvent is stirred and placed in a container, and the container is placed on a low-frequency ultrasonic vibrator Vibrate within the ultrasonic vibrator, the vibration frequency of the ultrasonic vibrator is 28-40KHZ, and the vibration time is 4-8 hours.

[0011] In order to obtain a better exhaust effect, the purity of the above-mentioned isopropanol solvent is greater than 95%.

[0012] The venting method of the casting solution of the present invention first blends isopropanol in the casting solution, puts the casting so...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
bubble point pressureaaaaaaaaaa
bubble point pressureaaaaaaaaaa
Login to View More

Abstract

The invention discloses an exhaust method of casting film liquid, which comprises the following steps: firstly blending isopropanol solvent in casting film liquid according to the mass ratio of 30%-50% and 50%-70% of the isopropanol solvent to the casting film liquid, stirring the casting film liquid blended with isopropanol solvent, then arranging the casting film liquid in a container, arranging the container in a low-frequency ultrasonic wave vibrator, and then vibrating the casting film liquid by adopting the low-frequency ultrasonic vibrator with the vibrating frequency of 28-40KHZ and the vibrating time of 4-8hours. According to the method, the gas in the casting film liquid can be exhausted to the greatest degree, the casting film quality is improved, and the casting film liquid can be made into various kinds of high-end films, thus meeting the applications with various special demands.

Description

technical field [0001] The invention relates to a method for exhausting gas in a liquid, in particular to a method for exhausting a casting liquid. Background technique [0002] The casting solution is used to produce various required membranes through the membrane continuous casting machine. In one fluid phase or between two fluid phases, a thin layer of condensed phase material is used to separate the fluid phase into two parts. The thin layer of condensed phase material It is the so-called thin film, referred to as membrane. The membranes that are condensates can be solid or liquid, while the fluid phase substances separated by the membranes can be liquid or gaseous. The membrane must have two interfaces that are in contact with the fluid phase materials separated on either side of the membrane. [0003] Membrane continuous casting machine is used to produce functional polymer membranes, that is, high-end membranes with certain special properties, such as semi-permeable...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/00B01J19/10
Inventor 王斌徐双林王伯荣
Owner 上海蓝蔚科技发展有限公司