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A polyester film with overheat protection function

A protective function and polyester film technology, applied in the field of polyester film, can solve the problems of inability to dissipate the heat of the mobile phone in time, and the lack of temperature protection function, so as to improve the temperature adaptability, prolong the service life and ensure the normal operation

Active Publication Date: 2016-04-27
NINGBO DXC NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing mobile phone film does not have a temperature protection function, and cannot realize the timely dissipation of the heat generated during the operation of the mobile phone

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A polyester film with an over-high temperature protection function comprises a polyester body layer, and a functional layer containing paraffin wax phase-change microcapsules is compounded on the polyester body layer.

[0019] The functional layer is compounded on the polyester body layer through the following steps:

[0020] First configure microcapsule coating liquid, the composition of this microcapsule coating liquid is:

[0021] 22 parts by mass of toluene;

[0022] Butanone 16 mass parts;

[0023] 20 parts by mass of paraffin phase-change microcapsules, the particle diameter of the paraffin phase-change microcapsules is 8-10 μm;

[0024] 35 parts by mass of polyurethane;

[0025] 5 parts by mass of isocyanate;

[0026] After the microcapsule coating solution is prepared, the coating solution is applied to the surface of the polyester body layer, and the volume is volatilized after being treated in an oven, and the microcapsules that are tightly combined with t...

Embodiment 2

[0028] A polyester film with an over-high temperature protection function comprises a polyester body layer, and a functional layer containing paraffin wax phase-change microcapsules is compounded on the polyester body layer.

[0029] The functional layer is compounded on the polyester body layer through the following steps:

[0030] First configure microcapsule coating liquid, the composition of this microcapsule coating liquid is:

[0031] 20 parts by mass of toluene;

[0032] Butanone 17 mass parts;

[0033] 25 parts by mass of paraffin phase-change microcapsules, the particle diameter of the paraffin phase-change microcapsules is 5-15 μm;

[0034] 40 parts by mass of polyurethane;

[0035] 8 mass parts of melamine formaldehyde resins;

[0036] After the microcapsule coating solution is prepared, the coating solution is applied to the surface of the polyester body layer, and the volume is volatilized after being treated in an oven, and the microcapsules that are tightly ...

Embodiment 3

[0038] A polyester film with an over-high temperature protection function comprises a polyester body layer, and a functional layer containing paraffin wax phase-change microcapsules is compounded on the polyester body layer.

[0039] The functional layer is compounded on the polyester body layer through the following steps:

[0040] First configure microcapsule coating liquid, the composition of this microcapsule coating liquid is:

[0041] 21 parts by mass of toluene;

[0042] Butanone 15 mass parts;

[0043] 15 parts by mass of paraffin phase-change microcapsules, the particle diameter of the paraffin phase-change microcapsules is 5-8 μm;

[0044] 32 parts by mass of polyurethane;

[0045] 10 parts by mass of isocyanate;

[0046] After the microcapsule coating solution is prepared, the coating solution is applied to the surface of the polyester body layer, and the volume is volatilized after being treated in an oven, and the microcapsules that are tightly combined with t...

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PUM

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Abstract

A polyester film with a too-high temperature protection function comprises a polyester body layer, wherein a functional layer comprising a paraffin phase change microcapsule is further composited on the polyester body layer, the functional layer is composited on the polyester body layer through the steps as follows: a microcapsule coating liquid comprising toluene, butanone, a paraffin phase change microcapsule, polyurethane and a curing agent is firstly prepared, the surface of the polyester body layer is coated with the coating liquid after the microcapsule coating liquid is well prepared, the coating liquid is volatilized in size through a drying oven, and finally the polyester body layer coated with the coating liquid is cured in a curing chamber. The functional layer comprising the paraffin phase change microcapsule is arranged on the surface of the polyester body layer, once the working temperature of a mobile phone exceeds a certain value, the polyester film keeps the temperature constant through a phase change process, so that the temperature of a product does not exceed the working temperature, the normal work of the product is guaranteed, the temperature adaptability of the product is improved, and the service life of the product is prolonged.

Description

technical field [0001] The present invention relates to a polyester film. Background technique [0002] With the rapid development of the mobile phone industry in recent years, touch-screen mobile phones have become the mainstream of today's mobile phones. However, excessive heat during use of touch-screen mobile phones not only affects the feel of use, but also affects the performance of mobile phones and shortens the service life of mobile phones. Phase change energy storage materials are widely used in the fields of building energy conservation, new energy utilization, and environmental protection due to their ability to absorb or release heat during their shape change. The existing mobile phone film does not have a temperature protection function, and cannot realize the timely dissipation of heat generated during the operation of the mobile phone. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the existing mobile phone film...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04C09D175/04C09D7/12C08L67/00
Inventor 罗培栋陆腱
Owner NINGBO DXC NEW MATERIAL TECH