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Environment-friendly PI film production process

A production process and environment-friendly technology, which is applied in the field of PI film preparation, can solve the problems of PI film preparation technology blockade, preparation process is not green enough, low preparation technology efficiency, etc., to achieve reliability assurance, waste water reduction, and process optimization Effect

Pending Publication Date: 2021-06-25
达克斯纳(上海)工程技术有限公司
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of PI film environment-friendly production process, to solve the technical blockade of the PI film preparation technology proposed in the above-mentioned background technology, and the existing preparation technology has low efficiency, low utilization rate of raw materials, and insufficient preparation technology green issues

Method used

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Embodiment

[0039] see Figure 1-4 , the present invention provides a kind of technical scheme: a kind of PI film environment-friendly production process, the specific steps of this PI film environment-friendly production process are as follows:

[0040] S1: The reaction condensation is carried out with the catalyst of base A plus dihydrogen chloride and eight liters of ammonia B. Under the continuous catalytic reaction at high temperature, the condensation reaction becomes phthalimide. Under the DAXNER reactor, the uninterrupted continuous reaction ;

[0041] The continuity is carried out by the stable temperature-controlled and pressure-controlled reactor of the DAXNER reactor, and the continuous automatic quantitative addition of phthalic anhydride is completed by the automatic supply system of the DAXNER reactor; the entire process flow is automatically controlled and executed by the DAXNER reactor, continuous, On-line, continuous automatic feeding, automatic temperature adjustment, ...

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Abstract

The invention belongs to the technical field of PI film preparation, and particularly relates to an environment-friendly PI film production process. The environment-friendly PI film production process comprises the following specific step of: S1, adding diacyl chloride and eight liters of ammonia B into an alkali A catalyst for reaction condensation, performing condensation reaction under high-temperature continuous catalytic chemical reaction to obtain phthalimide, and performing continuous reaction in a DAXNER reactor. The quality of the product is improved, the purity and precision are optimized, a perceptible guarantee is provided for terminal products and science and technology application, the localization of brain-computer interfaces, wearable and implantable products, electronic skins, transparent graphene conductive films, soluble lithium batteries and like become possible, an acceleration key can be pressed down by the applications, the reliability and the supply stability of the applications are ensured, an irreplaceable effect is played in the application of converting coal into clean fuel methanol and hydrogen as fuel cells, and the invention value is contributed to the future low-carbon or zero-carbon energy consumption.

Description

technical field [0001] The invention relates to the technical field of PI film preparation, in particular to an environment-friendly production process of PI film. Background technique [0002] The PI film is yellow and transparent, with a relative density of 1.39 to 1.45. The polyimide film has excellent high and low temperature resistance, electrical insulation, adhesion, radiation resistance, and medium resistance. It can be used for a long time within the temperature range, and can reach a high temperature of 400°C in a short time. The glass transition temperatures are 280°C (Upilex R), 385°C (Kapton) and above 500°C (Upilex S). The tensile strength is 200MPa at 20°C and greater than 100MPa at 200°C. It is especially suitable as the substrate of flexible printed circuit boards and insulating materials for various high-temperature-resistant motors and electrical appliances. High-quality fiber and high-temperature-resistant materials for lithium battery separators are u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08G73/10C08L79/08
CPCC08G73/1071C08J5/18C08J2379/08
Inventor 王金星
Owner 达克斯纳(上海)工程技术有限公司
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