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High-temperature-resistant flame-retardant BOPP isolating membrane and preparation method thereof

An isolation film and high temperature resistant technology, which is applied in the direction of chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problems of limited improvement and achieve improved heat resistance, mechanical properties and thermal stability , Dimensionally stable effect

Pending Publication Date: 2020-12-25
ANHUI GUOFENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the face of market demand, improving the heat resistance of BOPP films has become a technical problem that needs to be solved urgently. The existing technology mainly improves the crystallinity of the film through the improvement of raw materials and the optimization of process conditions, so as to achieve the purpose of improving the heat resistance of the film, such as patents CN1154374A, CN144004A , CN101460553A improve the film crystallinity through raw material improvement and process condition control respectively, and improve the heat resistance performance of the film to a certain extent, but the degree of improvement is limited

Method used

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  • High-temperature-resistant flame-retardant BOPP isolating membrane and preparation method thereof

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Effect test

Embodiment 1

[0025] A high-temperature-resistant and flame-retardant BOPP isolation film proposed by the present invention is composed of a high-temperature-resistant layer, a flame-resistant layer and a high-temperature-resistant layer from top to bottom; the thickness of the high-temperature-resistant and flame-resistant BOPP isolation film is 27 μm, and the The total thickness is 5% of the thickness of the high temperature resistant flame retardant BOPP isolation film.

[0026] The material of the high temperature resistant layer is composed of the following components in weight percentage: homopolypropylene 90%, thermosetting agent 0.5%, crosslinking agent 6%, antioxidant 0.5%, anti-blocking agent 3%; wherein, anti-blocking agent consists of Composed of 30% glass beads and 70% homopolypropylene, the particle size of the glass beads is 2 μm; the thermosetting agent is pyromellitic dianhydride; the crosslinking agent is hydroxyethyl acrylate; the antioxidant is terephthalate phenol.

[...

Embodiment 2

[0036] A high-temperature-resistant and flame-retardant BOPP isolation film proposed by the present invention is composed of a high-temperature-resistant layer, a flame-resistant layer and a high-temperature-resistant layer from top to bottom; the thickness of the high-temperature-resistant and flame-resistant BOPP isolation film is 32 μm, and the The total thickness is 7% of the thickness of the high temperature resistant flame retardant BOPP isolation film.

[0037] The material of the high temperature resistant layer is composed of the following components in weight percentage: homopolypropylene 91%, thermosetting agent 0.5%, crosslinking agent 5%, antioxidant 0.5%, anti-blocking agent 3%; wherein, anti-blocking agent consists of Composed of 40% glass beads and 60% homopolypropylene, the particle size of the glass beads is 3 μm; the thermosetting agent is pyromellitic dianhydride; the crosslinking agent is hydroxyethyl acrylate; the antioxidant is terephthalate phenol.

[...

Embodiment 3

[0047] A high-temperature-resistant and flame-retardant BOPP isolation film proposed by the present invention is composed of a high-temperature-resistant layer, a flame-resistant layer and a high-temperature-resistant layer from top to bottom; the thickness of the high-temperature-resistant and flame-resistant BOPP isolation film is 38 μm, and the The total thickness is 8% of the thickness of the high temperature resistant flame retardant BOPP isolation film.

[0048] The material of the high temperature resistant layer is composed of the following components in weight percentage: homopolypropylene 92%, thermosetting agent 0.2%, crosslinking agent 4.5%, antioxidant 0.3%, anti-blocking agent 3%; wherein, anti-blocking agent consists of Composed of 50% glass beads and 50% homopolypropylene, the particle size of the glass beads is 3 μm; the thermosetting agent is pyromellitic dianhydride; the crosslinking agent is hydroxyethyl acrylate; the antioxidant is terephthalate phenol.

...

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Abstract

The invention discloses a high-temperature-resistant flame-retardant BOPP isolating membrane and a preparation method thereof, and relates to the technical field of BOPP membranes. The BOPP isolatingmembrane is composed of a high-temperature-resistant layer, a flame-retardant layer and a high-temperature-resistant layer in sequence from top to bottom. The high-temperature-resistant layers are prepared from the following components in percentage by weight: 90-94% of homo-polypropylene, 0.2-0.5% of a thermal curing agent, 4-6% of a cross-linking agent, 0.3-0.5% of an antioxidant and 1-3% of ananti-blocking agent, wherein the anti-blocking agent is prepared from glass beads and homo-polypropylene. The flame-retardant layer is prepared from the following components in percentage by weight: 80-90% of homo-polypropylene and 10-20% of a flame-retardant master batch. The BOPP isolating membrane can be prepared by adopting a production line of a common BOPP membrane without additional growthequipment, and the prepared BOPP isolating membrane is good in high-temperature resistance, stable in size during lamination, easy to strip and suitable for high-temperature isolation lamination of industrial circuit boards and building boards.

Description

technical field [0001] The invention relates to the technical field of BOPP films, in particular to a high-temperature-resistant and flame-retardant BOPP isolation film and a preparation method thereof. Background technique [0002] There are many types of BOPP packaging films, but BOPP isolation films used for high-temperature isolation between layers of industrial circuit boards and building boards are still rare. It is required that the film has good dimensional stability during lamination and has flame retardant properties. [0003] In the face of market demand, improving the heat resistance of BOPP films has become a technical problem that needs to be solved urgently. The existing technology mainly improves the crystallinity of the film through the improvement of raw materials and the optimization of process conditions, so as to achieve the purpose of improving the heat resistance of the film, such as patents CN1154374A, CN144004A , CN101460553A respectively improve th...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B27/32B32B27/18B32B27/26B29C48/08B29C48/21B29C55/08
CPCB32B27/08B32B27/32B32B27/18B32B27/26B29C48/0018B29C48/08B29C48/21B29C55/08
Inventor 彭超施中华张勋吉
Owner ANHUI GUOFENG PLASTIC
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