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PET (polyethylene terephthalate) antistatic release film

A release film, antistatic technology, applied in the direction of adhesive type, film/sheet adhesive, polyurea/polyurethane adhesive, etc. Good and other problems, to achieve the effect of high electrostatic resistance value, easy to stick, easy to peel

Inactive Publication Date: 2016-09-28
DONGGUAN HANGDA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims at the shortcomings of the prior art, and its main purpose is to provide a PET antistatic release film, which can effectively solve the problems of the existing release film with high peeling force and poor antistatic performance.

Method used

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  • PET (polyethylene terephthalate) antistatic release film
  • PET (polyethylene terephthalate) antistatic release film

Examples

Experimental program
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Effect test

Embodiment 1

[0020] A PET antistatic release film includes a PET release layer 10, a PU adhesive layer 20 and a PET film surface layer 30.

[0021] The PET release layer 10, the PU adhesive layer 20 and the PET film surface layer 30 are sequentially stacked together from bottom to top, and the PU adhesive layer 20 is composed of the following raw materials in parts by mass: 65 parts of polyurethane resin, 7 parts of solvent, curing agent 25 parts, antistatic agent 15 parts, plasticizer 4 parts, antioxidant 3.5 parts. The thickness of the PET release layer 10 is 25 μm, and the PET release layer 10 also contains an antistatic agent, and its mass percentage is 2.1%; the thickness of the PU adhesive layer 20 is 8 μm; the thickness of the PET film surface layer 30 is 25 μm , and the PET film surface layer 30 also contains an antistatic agent, and its mass percentage is 1%; the solvent is ethyl acetate. During production, put the polyurethane resin, solvent, curing agent, antistatic agent, plas...

Embodiment 2

[0023] A PET antistatic release film includes a PET release layer 10, a PU adhesive layer 20 and a PET film surface layer 30.

[0024] The PET release layer 10, the PU adhesive layer 20 and the PET film surface layer 30 are sequentially stacked together from bottom to top, and the PU adhesive layer 20 is composed of the following raw materials in parts by mass: 70 parts of polyurethane resin, 5 parts of solvent, curing agent 22 parts, 16 parts of antistatic agent, 4.5 parts of plasticizer, 3 parts of antioxidant. The thickness of the PET release layer 10 is 25 μm, and the PET release layer 10 also contains an antistatic agent, and its mass percentage is 2%; the thickness of the PU adhesive layer 20 is 8.5 μm; the thickness of the PET film surface layer 30 is 25 μm, and the PET film surface layer 30 also contains an antistatic agent, its mass percentage is 1.2%; the solvent is ethyl acetate. During production, put the polyurethane resin, solvent, curing agent, antistatic agent...

Embodiment 3

[0026] A PET antistatic release film includes a PET release layer 10, a PU adhesive layer 20 and a PET film surface layer 30.

[0027] The PET release layer 10, the PU adhesive layer 20 and the PET film surface layer 30 are sequentially stacked together from bottom to top, and the PU adhesive layer 20 is composed of the following raw materials in parts by mass: 72 parts of polyurethane resin, 6 parts of solvent, curing agent 20 parts, antistatic agent 14 parts, plasticizer 4.3 parts, antioxidant 3.2 parts. The thickness of the PET release layer 10 is 25 μm, and the PET release layer 10 also contains an antistatic agent, and its mass percentage is 2.5%; the thickness of the PU adhesive layer 20 is 9 μm; the thickness of the PET film surface layer 30 is 25 μm , and the PET film surface layer 30 also contains an antistatic agent, and its mass percentage is 1.5%; the solvent is ethyl acetate. During production, put the polyurethane resin, solvent, curing agent, antistatic agent, ...

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Abstract

The invention disclose a PET (polyethylene terephthalate) antistatic release film, comprising a PET release layer, a PU (polyurethane) glue layer and a PET film face layer; the PET release layer, the PU glue layer and the PET film face layer are stacked together from bottom to top, and the PU glue layer is made from the following materials according to parts by weight: 65-80 parts of polyurethane resin, 5-8 parts of a solvent, 20-30 parts of a curing agent, 14-18 parts of an antistatic agent, 4-5 parts of a plasticizer, and 3-4 parts of an antioxidant agent. The PU glue layer prepared according to the formula of the invention has high electrostatic resistance, good antistatic feature, low peeling force, low adhesion and easiness of peeling and also has good self-gassing performance, easiness of attaching, good weatherability and zero post-peeling residue, the PET film face layer 30 is provided with holes in use, precision components are then disposed in the holes and adhered by the PU glue layer 20, and the film may be a replacement for circuit trays.

Description

technical field [0001] The invention relates to the technology in the field of release films, in particular to a PET antistatic release film. Background technique [0002] The release film refers to a film whose surface can be distinguished. The release film is not sticky or slightly sticky after contacting with a specific material under limited conditions. Release film is used in electronics, automotive foam, printing and other fields. Most of its application range is with sticky ones, especially tape products. However, the current release film cannot be used in the field of circuit board production and production due to its relatively high peeling force and poor antistatic performance. Contents of the invention [0003] In view of this, the present invention aims at the deficiencies of the prior art, and its main purpose is to provide a PET antistatic release film, which can effectively solve the problems of high peeling force and poor antistatic performance of the exis...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J175/04C09J11/00
CPCC09J7/255C09J7/405C09J11/00C09J175/04C09J2301/122C09J2301/408C09J2475/00
Inventor 洪立志
Owner DONGGUAN HANGDA ELECTRONICS
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