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A kind of aromatic polyoxadiazole fiber mica insulating paper and its preparation method and application

A polyoxadiazole fiber, mica insulation technology, applied in papermaking, paper, papermaking and other directions, can solve the problems of inability to meet downstream products, poor paper forming properties, etc., and achieve stable product performance, corona resistance, and Improve the effect of high temperature resistance

Active Publication Date: 2017-07-07
JIANGSU ZANPOD NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because it is difficult to add fibers to conventional mica paper, the paper-forming property is not good, and it cannot meet the needs of downstream products. This problem has not been solved for a long time.

Method used

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  • A kind of aromatic polyoxadiazole fiber mica insulating paper and its preparation method and application
  • A kind of aromatic polyoxadiazole fiber mica insulating paper and its preparation method and application
  • A kind of aromatic polyoxadiazole fiber mica insulating paper and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Prepare fiber mica insulating paper according to the following ratio:

[0053] 10 parts by weight of POD chopped fiber;

[0054] 70 parts by weight of calcined mica;

[0055] 20 parts by weight of POD precipitated fiber;

[0056] First, the POD chopped fibers and POD precipitated fibers with the above content are treated with ultrasonic and piezoelectric effects respectively to obtain a beating degree of 55-75°SR, and then they are added to the slurry mixing tank together with the calcined mica with the above content, and then water Stir fully with a force mixer for 8 to 20 minutes until the raw materials are evenly dispersed. Then the uniformly dispersed pulp flows into the stock stabilization box, and the online valve of the stock stabilization box is adjusted to make the stock evenly distributed on the forming net of the rotary paper machine. When the slurry runs along the forming wire, the excess water is filtered out from the slurry by using the pressure of the ...

Embodiment 2

[0058] Prepare fiber mica insulating paper according to the following ratio:

[0059] 10 parts by weight of POD chopped fiber;

[0060] Phlogopite 70 parts by weight;

[0061] 20 parts by weight of POD precipitated fiber.

[0062] The preparation method is the same as in Example 1, and the results obtained are shown in Table 3:

Embodiment 3

[0064] Prepare fiber mica insulating paper according to the following ratio:

[0065] 10 parts by weight of POD chopped fiber;

[0066] 70 parts by weight of muscovite;

[0067] 20 parts by weight of POD precipitated fiber;

[0068] The preparation method is the same as in Example 1, and the results obtained are shown in Table 3:

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Abstract

The invention discloses an aromatic polyoxadiazole fiber mica insulating paper. According to the mass percentage, its raw material composition is: 3% to 70% of aromatic polyoxadiazole fiber, 2% to 50% of aromatic polyoxadiazole fiber Polyoxadiazole precipitated fiber, 28% to 95% mica. The POD fiber and POD precipitated fiber are subjected to ultrasonic and piezoelectric effect treatment, and then matched with mica scales in proportion, mixed evenly, stabilized pulp, cylinder paper machine, and shaped; finally, POD fiber mica is obtained by hot pressing Paper products or directly get POD fiber mica paper products. It improves the high temperature resistance and high voltage performance of single POD fiber paper; improves the mechanical strength and impact resistance (corona resistance) of single mica paper, and is a new type of insulating material integrating the characteristics of POD fiber and mica. It can be widely used in various large electrical equipment, engines, special purposes and civil applications that require insulation.

Description

technical field [0001] The invention relates to a synthetic fiber-mica composite material, in particular to a high-performance insulating paper-like composite material containing aromatic polyoxadiazole (abbreviated as POD) fiber and mica. The invention also relates to the raw material ratio, preparation method, process and application of the POD fiber mica paper. Background technique [0002] Insulating material is the material that isolates the charged body from other parts in electrical equipment. Commonly used solid materials include mica, insulating paper, laminates, rubber, plastic, paint, glass, ceramics, insulating sleeves, etc. [0003] The function of insulating material is to isolate the charged parts with different potentials in electrical equipment. Therefore, the insulating material should first have high insulation resistance and withstand voltage strength, and can avoid leakage, breakdown and other accidents. Secondly, the heat resistance is better to avoi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H13/44D21H15/10D21F11/06
Inventor 杨远凤吴萌周建峰
Owner JIANGSU ZANPOD NEW MATERIAL CO LTD
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