Protection film for protecting work-piece in processing state, and applications thereof

A processing state, protective film technology, applied in the direction of film/sheet adhesive, pressure sensitive film/sheet, graft polymer adhesive, etc., can solve the problem of poor surface accuracy, poor appearance quality, contaminated surface, etc. problems, to achieve the effect of enhancing chemical resistance and solvent resistance, high cleanliness, and increasing molecular weight

Inactive Publication Date: 2019-12-31
SHANGHAI HIUV NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the manufacturing process of metal or non-metal precision workpieces, workpieces are often scratched or polluted by abrasive fluids, chips and other substances during grinding and thinning, CNC cutting and other processes, resulting in poor appearance quality, warping, poor surface accuracy, etc. question

Method used

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  • Protection film for protecting work-piece in processing state, and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Raw materials are calculated in parts by weight.

[0047] Add 50 parts of acrylic resin, 2 parts of acrylic acid, and 90 parts of ethyl acetate into the stirring tank, stir well, then add 40 parts of vinyl siloxane, 3 parts of tackifying resin, stir well, then add 0.5 parts of curing agent, 0.01 parts of curing accelerator, 10 parts of ethyl acetate, fully stirred until uniform.

[0048] Use a scraper coater to coat the stirred glue on the release surface of the release film, and enter the hot drying tunnel until the solvent is completely evaporated. At the same time, the polyacrylate surface of the polyvinyl chloride / polyacrylate composite film is corona-coated, compounded with a release film coated with an adhesive layer, and wound up.

[0049] Then, the rolled film is passed through electron beam irradiation equipment, and the irradiation dose is 50 kGy. Rewind, place in a drying room at 60°C, take it out after 24 hours, cut to the required width, and divide into rol...

Embodiment 2

[0051] Raw materials are calculated in parts by weight.

[0052] Add 30 parts of acrylic resin, 1 part of acrylic acid, and 90 parts of ethyl acetate into the stirring tank, stir well, then add 30 parts of vinyl siloxane, 3 parts of tackifying resin, stir well, then add 0.3 parts of curing agent, 0.01 parts of curing accelerator, 10 parts of ethyl acetate, fully stirred until uniform.

[0053] Use a scraper coater to coat the stirred glue on the release surface of the release film, and enter the hot drying tunnel until the solvent is completely evaporated. At the same time, the polyacrylate surface of the polyvinyl chloride / polyacrylate composite film has a good corona, and it is composited with the release film coated with an adhesive layer and rolled up.

[0054] Then, the rolled film is passed through electron beam irradiation equipment, and the irradiation dose is 40 kGy. Rewind, place in a drying room at 60°C, take it out after 24 hours, cut to the required width, and d...

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Abstract

The present invention relates to a protection film for protecting a work-piece in a processing state, wherein the protection film is adhered to the surface of the workpiece, and sequentially comprises: a base material layer comprising a polyvinyl chloride layer and a polyacrylate layer; an adhesive layer, wherein the polyacrylate layer in the base material layer is arranged adjacent to the adhesive layer, and the adhesive comprises vinyl siloxane and acrylate; and a release layer comprising a release surface adjacent to the adhesive layer. According to the invention, after the protection filmis formed, electron beam irradiation treatment is performed, so that the vinyl siloxane and the acrylate in the adhesive layer are subjected to a cross-linking reaction; and the high-temperature-resistant protection film can be used for grinding of semiconductor wafers, cutting of glass screen or organic glass screen products, cutting machining of steel plates, and other manufacturing procedure protection of high-precision workpieces.

Description

technical field [0001] The invention relates to the technical field of protective films, in particular to a protective film for protecting a workpiece in a processing state and its application. Background technique [0002] In the manufacturing process of metal or non-metal precision workpieces, workpieces are often scratched or polluted by abrasive fluids, chips and other substances during grinding and thinning, CNC cutting and other processes, resulting in poor appearance quality, warping, poor surface accuracy, etc. question. [0003] Therefore, it is necessary to have a high cleanliness and extremely low ion impurity content, and has excellent dimensional stability, moderate adhesion, and thermal stability, so that it can be well adhered to the workpiece during grinding and thinning processing, and can be used in the grinding and thinning process. A protective film that does not detach from the adhesive layer under the high temperature generated by grinding. At the sam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/38C09J151/00
CPCC09J151/003C09J2427/006C09J2433/006C09J7/29C09J7/381
Inventor 周亮吉范珩
Owner SHANGHAI HIUV NEW MATERIALS
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