Process for preparing immersive insulating aramid paperboard by using inertia

A preparation process and immersion technology, applied in the direction of paper, paper making, paper machine, etc., can solve the problems of complex aramid fiber board process and long board time, and achieve the effect of good tightness, good tightness and narrow spacing.

Inactive Publication Date: 2022-07-05
NANTONG ZHONGLING INSULATION MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the process of preparing aramid fiber cardboard used in industrial production is complicated. The production of existing aramid fiber cardboard is almost always the production method of net rack, and the production time of the cardboard is long

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] At the same time, the table top of the high-temperature dehumidifier and the pressing plate that exerts pressure above increase the temperature of the aramid fiber paperboard from the upper and lower directions, and heat it from normal temperature to 250 °C. The heating process is divided into three stages: 130 °C, 1800 °C, 250°C for 10 minutes at each temperature.

Embodiment 2

[0044] At the same time, the table top of the high-temperature dehumidifier and the pressing plate applying pressure above increase the temperature of the aramid fiber paperboard from the upper and lower directions, and heat it from normal temperature to 250 °C. The heating process is divided into three stages: 140 °C, 190 °C, 250°C for 11 minutes at each temperature.

Embodiment 3

[0046] At the same time, the table top of the high-temperature dehumidifier and the pressing plate applying pressure above increase the temperature of the aramid fiber paperboard from the upper and lower directions, and heat it from normal temperature to 250°C. The heating process is divided into three stages: 160°C, 210°C, 250°C for 13 minutes at each temperature.

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Abstract

The invention discloses a preparation process of an immersion type insulating aramid paperboard by utilizing inertia, which comprises the following steps of: firstly, preparing an aramid fiber sizing net, preparing aramid fiber paper pulp, putting the aramid fiber paper pulp into an aramid fiber paper pulp tank, uniformly stirring the aramid fiber paper pulp by adopting a stirring paddle, and uniformly stirring the aramid fiber paper pulp; placing an aramid fiber sizing net prepared in advance at the bottom of the aramid fiber paper pulp tank, continuously stirring the aramid fiber paper pulp for 10s, standing the aramid fiber sizing net at the bottom of the aramid fiber paper pulp tank for a period of time, and quickly lifting the aramid fiber sizing net upwards at a constant speed; according to the preparation method, the prepared insulating aramid paper board is subjected to dewatering and drying treatment, finally, the surface of the dried insulating aramid paper board is cured, finally, the prepared aramid paper is cut and packaged, the preparation process of the insulating aramid paper board is simple, the thickness of the aramid paper is convenient to control, and the prepared aramid paper is high in overall strength.

Description

technical field [0001] The invention relates to the technical field of preparation of immersed insulating aramid paperboard, in particular to a preparation process of immersed insulating aramid paperboard utilizing inertia. Background technique [0002] Aramid insulating paper belongs to aramid composite material, there are two main categories, one is meta-aramid insulating paper, which is called aramid 1313 in our country; the other is para-aramid insulating paper, which is called aramid 1414 in our country. [0003] Aramid insulating paper is more and more widely used in safety protection, high temperature filtration, electrical insulation, structural materials and other fields, and its popularity is getting higher and higher. It has become an indispensable and important basic material in many fields such as military, industry, science and technology. [0004] At present, the technological process of preparing aramid fiber board used in industrial production is complicated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H13/26D21H15/06D21H15/02D21F13/00
CPCD21H13/26D21H15/06D21H15/02D21F13/00
Inventor 闾传胪
Owner NANTONG ZHONGLING INSULATION MATERIALS
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