Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Manufacturing method for improving warpage of composite membrane plate

A production method and composite film technology, applied in the field of composite films, can solve the problems of increasing the reverse winding process and reducing the warpage of composite films, and achieve the effects of improving market competitiveness, facilitating accurate absorption, and expanding the operating range

Pending Publication Date: 2022-03-15
SONGYANG ELECTRONICS MATERIAL KUSN
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned defects, the present invention provides a method for improving the warpage of the composite film. In this operation method, the tension in multiple places of the coating machine is reduced, and the reverse winding process is added, so that the warpage of the composite film obtained is greatly improved. Reduced, so as to meet the needs of the subsequent mechanized laminating operation of the client, expand the scope of operation of the composite film, and improve its market competitiveness

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Manufacturing method for improving warpage of composite membrane plate
  • Manufacturing method for improving warpage of composite membrane plate
  • Manufacturing method for improving warpage of composite membrane plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1: Composite membrane adopts following method to make:

[0049] Step 1: Mix the epoxy resin and curing agent uniformly in the polymerization device 10 and polymerize it for later use, and debug the coating machine at the same time, and the coating machine includes a coating unit 20, a winding unit 30, and a reverse winding unit 40 , baking unit 50 and strip unit 60;

[0050] Step 2: Coating: adjust the tension of the coating unit 20 everywhere, and apply the polymerized epoxy resin 11 evenly on the first polyimide film 27 under low tension conditions by using the coating unit 20 , to obtain the second polyimide film 28;

[0051] The process parameters during coating are as follows: the unwinding speed of the first unwinding assembly 21 is 15m / min, the pressure is 2kg, the tension at the first tension arm 24 is 40N, and the tension at the second tension arm 25 The tension at the tension arm 26 is 45N, and the tension at the third tension arm 26 is 40N; the o...

Embodiment 2

[0059] Embodiment 2: Composite film adopts following method to make:

[0060] Step 1: Mix the epoxy resin and curing agent uniformly in the polymerization device 10 and polymerize it for later use, and debug the coating machine at the same time, and the coating machine includes a coating unit 20, a winding unit 30, and a reverse winding unit 40 , baking unit 50 and strip unit 60;

[0061] Step 2: Coating: adjust the tension of the coating unit 20 everywhere, and apply the polymerized epoxy resin 11 evenly on the first polyimide film 27 under low tension conditions by using the coating unit 20 , to obtain the second polyimide film 28;

[0062] The process parameters during coating are as follows: the unwinding speed of the first unwinding assembly 21 is 15m / min, the pressure is 2kg, the tension at the first tension arm 24 is 30N, and the tension at the second tension arm 25 The tension at the tension arm 26 is 40N, and the tension at the third tension arm 26 is 35N; the oven ...

Embodiment 3

[0070] Embodiment 3: Composite membrane adopts following method to make:

[0071] Step 1: Mix the epoxy resin and curing agent uniformly in the polymerization device 10 and polymerize it for later use, and debug the coating machine at the same time, and the coating machine includes a coating unit 20, a winding unit 30, and a reverse winding unit 40 , baking unit 50 and strip unit 60;

[0072] Step 2: Coating: adjust the tension of the coating unit 20 everywhere, and apply the polymerized epoxy resin 11 evenly on the first polyimide film 27 under low tension conditions by using the coating unit 20 , to obtain the second polyimide film 28;

[0073] The process parameters during coating are as follows: the unwinding speed of the first unwinding assembly 21 is 15m / min, the pressure is 2kg, the tension at the first tension arm 24 is 50N, and the tension at the second tension arm 25 The tension at the tension arm 26 is 50N, and the tension at the third tension arm 26 is 45N; the o...

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

No PUM Login to View More

Abstract

The invention relates to a manufacturing method for improving warpage of a composite membrane. The manufacturing method is characterized by comprising the following steps: uniformly mixing epoxy resin and a curing agent in a polymerization device, and polymerizing for later use; coating: uniformly coating the polymerized epoxy resin on the first polyimide film by using a coating unit under the condition of low tension; the second polyimide film and the third polyimide film are pressed by a rolling unit under the condition of low tension and then rolled, and a semi-finished product film of the composite film is obtained; reverse winding: reversely winding the semi-finished product film into a reverse semi-finished product film under the condition of low tension by using a reverse winding unit; and then standing, baking, slitting and packaging to obtain the composite film. The tension at multiple positions of the coating machine is reduced, the reverse winding procedure is added, and the warping of the obtained composite membrane plate is greatly reduced, so that the requirements of follow-up client mechanical laminating operation are met.

Description

technical field [0001] The invention relates to a composite film, in particular to a manufacturing method for improving warping of the composite film. Background technique [0002] The traditional preparation method of the composite film is as follows: use a coating machine to evenly coat the epoxy resin glue on the polyimide film, take away the solvent-containing gas with hot air to dry it, and then coat the PI film coated with one side of the glue. Laminated with PI film, rolled into a roll-shaped semi-finished "composite film", and then baked to become a finished product. The warping of the composite film obtained by the current preparation method is serious, and the warping height of the composite film of different specifications is different. Generally, the warpage of the 25*30cm composite film is >3cm, and the warpage of the 4*1cm composite mold is >1cm. The degree of warping will not affect the traditional manual operation of subsequent customers. However, with...

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): B29C41/24B29C41/46B29C41/44B29C41/52B29L7/00
CPCB29C41/24B29C41/46B29C41/44B29C41/52B29L2007/002
Inventor 王玉成罗霄徐玮鸿周文贤
Owner SONGYANG ELECTRONICS MATERIAL KUSN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com