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Rapid silicon transfer detection method of silicon-containing release film

A detection method and release film technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of unfriendly environment, long test time, long time, etc., and achieve good reference significance and stable and reliable test results

Inactive Publication Date: 2020-01-31
DONGGUAN JPOND IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These test methods generally require at 70g / cm 2 Place it under the pressure condition for 20 hours before testing, the process is cumbersome and the test time is long
There is a patent report to evaluate the crosslinking rate of silicon by soaking the silicon-based release film in a solvent for 12-72 hours. This method also takes a long time, and the use of a large amount of solvent is not friendly to the environment.

Method used

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  • Rapid silicon transfer detection method of silicon-containing release film

Examples

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Embodiment 1

[0021] The detection steps of this embodiment are as follows:

[0022] In step a, take a sample of the silicon-containing release film to be tested in the size of A4 paper, cut it into a circular sample with a diameter of about 3.6 cm, and use a LAB-X5000 desktop X-ray fluorescence spectrometer to test its silicon coating amount A;

[0023] Step b, take a clean A4-sized PET original film and cut it into a size of 10×25cm for later use;

[0024] Step c, weigh the purchased modified acrylic AB glue according to the ratio and mix it evenly, apply it to the release surface of the release film sample with a scraper, and quickly cover it with the original PET film within 1 minute, and then Stand for 6 minutes under a 2KG pressure strip, and tear off the PET film with glue after the glue is cured to obtain a treated release film sample;

[0025] In step d, the treated release film sample is tested by an X-ray fluorescence spectrometer to obtain the silicon coating amount B;

[0026...

Embodiment 2

[0028] In step a, prepare an A4-sized silicon-containing release film and an A4-sized PET original film. The PET original film can be a conventional transparent PET original film with a thickness of 50 μm. Cut the silicon-containing release film sample into a circular sample with a diameter of about 3.6 cm, and use a LAB-X5000 desktop X-ray fluorescence spectrometer to test its silicon coating amount A;

[0029] In step b, the test glue is commercially available modified acrylate AB glue DY-J39, which is ready for use.

[0030] Step c, place the release film sample on a flat polytetrafluoroethylene plate, weigh and mix the modified acrylate AB glue DY-J39 according to the ratio of 1:1, and apply it on the release surface with a scraper Be sure to completely cover the silicon-containing surface;

[0031] Then quickly cover the original PET film within 1 minute, and then stand it under a 5KG bead for 6-8 minutes. After the glue is cured, tear off the PET film with glue to obtai...

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Abstract

The invention relates to a rapid silicon transfer detection method of a silicon-containing release film, thereby detecting a silicon transfer rate of the silicon-containing release film. The method comprises the following steps: testing a silicon coating amount A of a to-be-detected silicon-containing release film sample before treatment by adopting an X fluorescence spectrum analyzer; cutting a clean silicon-free film material for later use; uniformly and completely coating a release surface of the to-be-detected silicon-containing release film sample with a silicon-free test adhesive and peeling off the silicon-free film material after curing of silicon-free test adhesive to obtain a treated silicon-containing release film sample; testing a silicon coating amount B of the treated silicon-containing release film sample again by using the X fluorescence spectrum analyzer; and calculating a silicon transfer rate based on a formula: K=((A-B) / A)*100% and analyzing whether the silicon-containing release film meets the use requirements or not. According to the invention, the contact effect of the adhesive and the release surface is enhanced based on actual application simulation, so that the test time is shortened to be within one hour; and whether the release film is suitable or not is determined according to the silicon coating amount change rate before and after release film treatment.

Description

Technical field: [0001] The invention relates to the technical field of release film detection, in particular to a method for rapidly detecting silicon transfer of a release film containing silicon. Background technique: [0002] Release film is widely used in packaging, printing, flexible circuit, electronics, adhesive products, die-cutting and stamping processing and other industries, and has the functions of isolation, filling, protection, and easy peeling. Among them, silicone oil-coated release films often have silicone oil transfer in die-cutting applications, resulting in decreased adhesion of acrylic pressure-sensitive tapes or contamination of finished products, which has brought many problems to production and application. At present, for the transfer of silicone oil, the residual adhesion rate is mostly used to evaluate the residual adhesion rate. The test of the residual adhesion rate is introduced in detail in FINATFTM11 and GB / T 25256-2010. Due to the differen...

Claims

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Application Information

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IPC IPC(8): G01N23/223G01N23/2202
CPCG01N23/223G01N23/2202G01N2223/076G01N2223/1016
Inventor 颜培坚危燕罗青蒋熙麟何荣殷冠明
Owner DONGGUAN JPOND IND CO LTD
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