Release film containing 4-methyl-1-pentene polymer and preparation method thereof

A polymer and release film technology, applied in the field of film materials, can solve problems such as poor performance stability, large types and quantities of inorganic additives, and extravasation of inorganic components

Active Publication Date: 2021-05-18
苏州市新广益电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, each layer of the film contains organic and inorganic components with poor compatibility, and the types and amounts of inorganic additives are relatively large. During the storage and use of the release film, poor performance stability is prone to occur. The phenomenon of component leakage affects the quality of printed circuit board products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A release film containing 4-methyl-1-pentene polymer is characterized in that it comprises an outer film layer, a core film layer and an inner film layer from top to bottom; Base-1-pentene polymer and allylbenzothiazole graft modified 4-methyl-1-pentene polymer are made by blending at a mass ratio of 3:1; the core film layer is made of allylbenzothiazole / Allyl pentafluorobenzene / 2,4-diphenyl-4-methyl-1-pentene copolymer and hyperbranched polyethylene fiber are blended at a mass ratio of 100:5; the inner film layer is made of 4 -Methyl-1-pentene polymer and allylbenzothiazole graft modified 4-methyl-1-pentene polymer are blended at a mass ratio of 1:2; the outer film layer and the core film layer , The thickness ratio of the inner membrane layer is 1:4:1.

[0034] The preparation method of the allylbenzothiazole graft modified 4-methyl-1-pentene polymer comprises the steps of: allylbenzothiazole, 4-methyl-1-pentene polymer, peroxide After the initiators are uniformly ...

Embodiment 2

[0044] A release film containing 4-methyl-1-pentene polymer is characterized in that it comprises an outer film layer, a core film layer and an inner film layer from top to bottom; Base-1-pentene polymer and allylbenzothiazole graft modified 4-methyl-1-pentene polymer are made by blending at a mass ratio of 3.5:1; the core film layer is made of allylbenzothiazole / Allyl pentafluorobenzene / 2,4-diphenyl-4-methyl-1-pentene copolymer and hyperbranched polyethylene fiber are blended at a mass ratio of 100:6; the inner film layer is made of 4 -Methyl-1-pentene polymer and allylbenzothiazole graft modified 4-methyl-1-pentene polymer are blended at a mass ratio of 1:2.5; the outer film layer and core film layer , The thickness ratio of the inner membrane layer is 1:4.5:1.

[0045] The preparation method of the allylbenzothiazole graft modified 4-methyl-1-pentene polymer comprises the steps of: allylbenzothiazole, 4-methyl-1-pentene polymer, peroxide After the homogeneous initiators ...

Embodiment 3

[0054] A release film containing 4-methyl-1-pentene polymer is characterized in that it comprises an outer film layer, a core film layer and an inner film layer from top to bottom; Base-1-pentene polymer and allylbenzothiazole graft modified 4-methyl-1-pentene polymer are made by blending at a mass ratio of 4:1; the core film layer is made of allylbenzothiazole / Allyl pentafluorobenzene / 2,4-diphenyl-4-methyl-1-pentene copolymer and hyperbranched polyethylene fiber are blended at a mass ratio of 100:7.5; the inner film layer is made of 4 -Methyl-1-pentene polymer and allylbenzothiazole graft modified 4-methyl-1-pentene polymer are blended at a mass ratio of 1:3; the outer film layer and the core film layer , The thickness ratio of the inner membrane layer is 1:5:1.

[0055] The preparation method of the allylbenzothiazole graft modified 4-methyl-1-pentene polymer comprises the steps of: allylbenzothiazole, 4-methyl-1-pentene polymer, peroxide After the homogeneous initiators ...

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Abstract

The invention discloses a release film containing a 4-methyl-1-pentene polymer. The release film is characterized by sequentially comprising an outer film layer, a core film layer and an inner film layer from top to bottom, wherein the outer film layer is prepared by blending a 4-methyl-1-pentene polymer and a probenazole grafted and modified 4-methyl-1-pentene polymer according to a mass ratio of (3-5): 1; the core film layer is prepared by blending probenazole / allyl pentafluorobenzene / 2,4-diphenyl-4-methyl-1-pentene copolymer and hyperbranched polyethylene fiber according to a mass ratio of 100 to (5-10); and the inner film layer is prepared by blending the 4-methyl-1-pentene polymer and the probenazole grafted and modified 4-methyl-1-pentene polymer according to a mass ratio of 1: (2-4). The invention also discloses a preparation method of the release film containing the 4-methyl-1-pentene polymer. The release film containing the 4-methyl-1-pentene polymer, disclosed by the invention, is good in release property, high temperature resistance, weather resistance and flame retardance and excellent in comprehensive performance, performance stability and mechanical properties.

Description

technical field [0001] The invention relates to the technical field of film materials, in particular to a release film containing 4-methyl-1-pentene polymer and a preparation method thereof. Background technique [0002] With the advancement of electronic technology, electronic products are gradually developing in the direction of high density, miniaturization, and high reliability. In the manufacturing process, it is often necessary to use flexible circuit boards with high precision, good stability, and high reliability. The research and development of flexible circuit boards has led to the rapid development of release films, which also provide good performance support for the production of flexible circuit boards. The release film is indispensable in the existing process of soft and flexible circuit board production. The use of the release film can effectively reduce the impact of the overflow of the protective film on the yield of the finished product of the flexible circ...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/32B32B37/06B32B38/06B32B38/18B32B7/06C08L23/20C08L51/06C08L25/18C08L23/06C08J5/18
CPCB32B27/08B32B27/32B32B37/06B32B38/06B32B38/18B32B38/1808B32B7/06C08J5/18C08J2323/20C08J2451/06C08J2325/18C08J2423/06
Inventor 夏超华
Owner 苏州市新广益电子股份有限公司
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