Resin stock solution filter mechanism of polyimide film casting machine
A technology of polyimide film and liquid filtration, which is applied in the direction of coating, etc., can solve the problems of low filtration efficiency, small resin liquid filtration contact area, and limited application range of the film, achieving high filtration efficiency, improved mechanical properties, The effect of large filter contact area
Active Publication Date: 2013-01-16
无锡嘉银新材料科技有限公司
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Problems solved by technology
The existing filtration mechanism has a small resin stock solution filtration contact area and low filtration efficiency, so that the purity of the final polyimide film cannot be greatly improved, which limits the application range of the film to a certain extent
Method used
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Embodiment Construction
[0020] The present invention will be further described below in conjunction with the embodiment shown in accompanying drawing:
[0021] see figure 2 The polyimide thin film salivating machine resin raw liquid filtering mechanism shown includes an outer tube body 1 and a filter body 2 fixedly installed in the outer tube body 1 . Wherein, the outer tube body 1 is provided with a liquid inlet 11 and a liquid outlet 12 at both ends along its axial direction. The filter body 2 includes a base plate 21 arranged coaxially with the outer tube body 1 and close to the liquid inlet 11 , and a plurality of filter cartridges 22 parallel to the axis of the outer tube body 1 and fixed on the base plate 21 . The structure of filter body 2 will be described in detail below:
[0022] Among them, base plate 21 such as image 3 As shown, it is made of stainless steel. A plurality of round holes are evenly opened on the base plate 21, such as 5-20, and 9 in this embodiment. The number ...
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Abstract
The invention relates to a resin stock solution filter mechanism of a polyimide film casting machine. The resin stock solution filter mechanism is arranged at the front end of a conduit of a casting machine mouth and comprises an outer pipe body and a filter body which is fixedly arranged in the outer pipe body, wherein a solution inlet and a solution outlet are arranged at two ends of the outer pipe body in the axis direction; the filter body comprises a basic disc which is arranged coaxial with the outer pipe body and close to the solution inlet and a plurality of filter cartridges which are parallel to the axis of the outer pipe body and fixed on the basic disc; the filter body divides the outer pipe body into a stock solution space and a purification space; the mouth part of each filter cartridge is communicated with the stock solution space through an opening corresponding to the basic disc; numerous filter holes which are communicated with the purification space are formed on each filter cartridge; the resin stock solution enters into the stock solution space through the solution inlet of the outer pipe body and is dispersed and filtered through the filter cartridges to form liquid with relatively high purity; the liquid is conveyed to the casting machine mouth; and the filter contact space of the stock resin is relatively large and the filter efficiency is relatively high, so that various aspects such as the electric property and the mechanical property of the made polyimide film are improved.
Description
[0001] technical field [0002] The invention relates to polyimide saliva film-forming equipment, in particular to a resin raw liquid filtering mechanism before polyimide saliva film formation. Background technique [0003] Polyimide film is a new type of high temperature resistant organic polymer film, which is currently the best film insulating material in the world, with excellent mechanical properties, electrical properties, chemical stability and high radiation resistance , High temperature and low temperature resistance. Therefore, it is especially suitable as the substrate of flexible printed circuit boards and insulating materials for various high-temperature-resistant motors and electrical appliances. [0004] The preparation process of polyimide film is as follows: the synthetic liquid polyimide resin flows into the steel belt in the salivating machine through the nozzle of the salivating machine to form a uniform resin coating, and is heated and dried in the mach...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B29C41/34B29B13/10
Inventor 林志刚
Owner 无锡嘉银新材料科技有限公司