High-thermal-conductivity biaxially-stretchable polyester film material and processing technology thereof

A technology of biaxial stretching and polyester film, applied in the field of polyester film, can solve problems such as poor thermal conductivity, and achieve the effect of improving thermal conductivity and good thermal conductivity

Pending Publication Date: 2022-04-15
浙江华清新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a high thermal conductivity biaxially stretchable polyester film material and its processing technology, which solves the problem that the thermal conductivity of the existing BOPET film is about 0.18W / (m k) and the thermal conductivity is relatively poor. question

Method used

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  • High-thermal-conductivity biaxially-stretchable polyester film material and processing technology thereof

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0030] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted from the present invention.

[0031] see figure 1 As shown, a high thermal conductivity biaxially stretchable polyester film material is provided in this embodiment, including: polyethylene terephthalate, polyester resin and boron nitride particles, and the boron nitride particles The content of boron nitride is ...

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Abstract

The invention discloses a high-thermal-conductivity biaxially-stretchable polyester film material and a processing technology thereof, and relates to the technical field of polyester films. The composite material comprises polyethylene glycol terephthalate, polyester resin and boron nitride particles, the content of the boron nitride particles is 6-8 wt%, and the particle sizes of the boron nitride particles are 4-8 [mu] m and 260-750 nm. A proper amount of micron-scale and nano-scale boron nitride particles are introduced into the polyester resin, on one hand, micron-scale boron nitride is in contact with one another to form a heat conduction network, on the other hand, nano-scale boron nitride is used for increasing the contact area between the micron-scale boron nitride particles to improve the heat conduction performance, and the heat conduction coefficient of the prepared polyester film is about 0.8 W/(m.k); the heat-conducting property is good.

Description

technical field [0001] The invention belongs to the technical field of polyester film, and in particular relates to a high thermal conductivity biaxially stretchable polyester film material and a processing technology thereof. Background technique [0002] Polyester film (PET) is a film material made of polyethylene terephthalate as a raw material, which is made into a thick sheet by extrusion and then stretched. Polyester film environmental protection film PET film milky white film and other printing and packaging consumables are widely used in the glass fiber reinforced plastic industry, building materials industry, printing industry, medicine and health. Polyester film is also called polyester film light sheet polyester film photosensitive paper polyester film benzene tin film cellophane release film. [0003] With the development of high integration and miniaturization of electronic components, motors and other electrical products, the heat per unit area has increased s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K3/38C08J5/18
Inventor 周波
Owner 浙江华清新材料有限公司
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