High-polymer electrothermal film and preparation technique thereof

A preparation process and electric heating film technology, which is applied in the field of materials, can solve the problems of affecting service life, poor thermal stability, and decreased conductivity, and achieve the effects of not easy aging, long service life, and good conductivity

Inactive Publication Date: 2013-02-13
无锡市天力胶带厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the polymer electrothermal film PTC film, the basic material is PTC, this material has good electrical conductivity, but when the electrothermal film reaches a certain temperature, the electrical conductivity drops sharply, and the material ages quickly. The characteristics of poor thermal stability seriously affect its service life

Method used

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  • High-polymer electrothermal film and preparation technique thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0017] A polymer electric heating film, according to the raw material formula indicated in Table 1, its preparation process is as follows: Step 1, weigh each component raw material according to the formula amount, mix evenly, heat until the raw material temperature reaches 120 ° C, and dry until the raw material Granular;

[0018] Step 2: Blow-molding the dried mixture at 180° C. to obtain a polymer electric heating film.

Embodiment 2

[0020] A kind of macromolecule electrothermal film, according to the raw material formula indicated in table 1, its preparation process is as follows:

[0021] Step 1. Weigh the raw materials of each component according to the formula, mix them evenly, heat until the temperature of the raw materials reaches above 120°C, and dry until the raw materials are granular;

[0022] Step 2: Blow-molding the dried mixture at 170° C. to obtain a polymer electric heating film.

Embodiment 3

[0024] A kind of macromolecule electrothermal film, according to the raw material formula indicated in table 1, its preparation process is as follows:

[0025] Step 1. Weigh the raw materials of each component according to the formula, mix them evenly, heat until the temperature of the raw materials reaches above 120°C, and dry until the raw materials are granular;

[0026] Step 2: Blow-molding the dried mixture at 160°C to obtain a polymer electric heating film.

[0027]

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Abstract

The invention discloses a high-polymer electrothermal film which is prepared from the following raw materials in parts by weight: 100 parts of iodine-doped polyacetylene, 15-20 parts of glass fiber, 0.5-2 parts of carbon fiber, 0.2-0.5 part of plasticizer and 0.2-0.5 part of foaming agent. The electric conductivity of the high-polymer electrothermal film disclosed by the invention is basically free from the influence of temperature; and the high-polymer electrothermal film still has favorable electric conductivity, has the advantages of low aging tendency and long service life, and is suitable for industrial production in various fields.

Description

technical field [0001] The invention relates to polymer materials and belongs to the field of materials. Background technique [0002] The development potential of electrothermal film is huge, which is in line with the trend of low-carbon economic development. Let’s take a look at the authoritative information of Voice of China, my country’s top media: The Ministry of Housing and Urban-Rural Development recently decided that Harbin Institute of Technology and Heilongjiang Zhonghui Co., Ltd. will jointly compile the "Technical Specifications for Electrothermal Film Application". The electric heating film heating method does not consume water, does not occupy land, has independent switches, saves energy and materials, conforms to the policy orientation of emission reduction and low carbon, and has broad development prospects. This is an affirmation of Zhonghui Geothermal's status and authority in the electrothermal film and electric heating industry, and it has attracted wid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L49/00C08K7/14C08K7/06C08K3/04C08K3/02H05B3/34
Inventor 张卫彪
Owner 无锡市天力胶带厂
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