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Polytetrafluoroethylene product surface treatment agent and preparation method thereof

A technology of surface treatment agent and polytetrafluoroethylene, which is applied in the field of fluororesin surface treatment agent and its preparation, can solve the problems of poor product quality, different corrosion depths, and volatile solvents, so as to solve the problems of safe production and reduce material consumption , the effect of improving working conditions

Active Publication Date: 2013-10-16
ZHEJIANG GREEN NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The weak point of above prior art is: the used solvent of naphthalene-sodium treatment solution is volatile, highly toxic, pollutes heavily, and the on-the-spot operation environment of preparation is poor, more and more is subjected to the restriction that environmental protection requirement improves; Treatment solution corrosion ability is weak, and after treatment The quality of the product is poor, and there are bad phenomena such as mottling and corrosion, which limit the application effect of the product

Method used

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  • Polytetrafluoroethylene product surface treatment agent and preparation method thereof

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Effect test

Embodiment 1

[0030] A polytetrafluoroethylene product surface treatment agent, its composition is as follows:

[0031] Naphthalene 55.7 g

[0032] Sodium Metal 10g

[0033] Ethylene glycol dimethyl ether 800 grams

[0034] The preparation method is as follows:

[0035] According to the ratio, add ethylene glycol dimethyl ether and naphthalene into a 1-liter four-necked flask with stirring, start stirring to stir the naphthalene until it is completely dissolved, and obtain a solution containing naphthalene; Dry nitrogen, add the required metal sodium according to the proportion to react, control the temperature of the reaction liquid at 30°C, stir and react for 3 hours, cool, turn off the stirring and turn off the nitrogen, pour the prepared surface treatment agent into the glass filled with nitrogen Store in a bottle, sealed and protected from light.

Embodiment 2

[0037] A polytetrafluoroethylene product surface treatment agent, its composition is as follows:

[0038] Naphthalene 200g

[0039] Sodium metal 35.9 g

[0040] Tetraethylene glycol dimethyl ether 700 grams

[0041] The preparation method is as follows:

[0042] Add tetraethylene glycol dimethyl ether and naphthalene into a 1-liter four-necked flask with stirring according to the proportion, start stirring to stir the naphthalene until it is completely dissolved, and obtain a solution containing naphthalene; Dry nitrogen, add the required metal sodium according to the proportion to react, control the temperature of the solution at 80°C, stir the reaction for 5 hours and end the reaction, cool down, turn off the stirring and turn off the nitrogen, pour the prepared surface treatment agent into the nitrogen filled Store in a glass bottle, sealed and protected from light.

Embodiment 3

[0044] A polytetrafluoroethylene product surface treatment agent, its composition is as follows:

[0045] Naphthalene 100g

[0046] Sodium Metal 17.8g

[0047] Diethylene glycol dimethyl ether 700g

[0048] The preparation method is as follows:

[0049] Add diethylene glycol dimethyl ether and naphthalene into a 1-liter four-necked flask with stirring according to the proportion, start stirring to stir the naphthalene until it is completely dissolved, and obtain a solution containing naphthalene; Dry nitrogen, add the required metal sodium to react according to the proportion, control the temperature of the solution at 80°C, stir the reaction for 10 hours and end the reaction, cool down, turn off the stirring and turn off the nitrogen, pour the prepared surface treatment agent into the nitrogen filled Store in a glass bottle, sealed and protected from light.

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Abstract

The invention discloses a polytetrafluoroethylene product surface treatment agent which comprises the following components in parts by weight: 50-280 parts of naphthalene, 10-50 parts of metallic sodium and 600-800 parts of a solvent, wherein the solvent is one of 1,4-dioxane, glycol dimethyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, ethylene glycol butyl methyl ether, tetraethylene glycol dimethyl ether and diethylene glycol isobutyl ether. The invention further provides a preparation method for the polytetrafluoroethylene product surface treatment agent. The polytetrafluoroethylene product surface treatment agent has the advantages of safety, environmental pollution and high treatment capability; and a polytetrafluoroethylene product obtained after treatment of the surface treatment agent is good in quality and high in qualified rate.

Description

technical field [0001] The invention relates to a fluororesin surface treatment agent and a preparation method thereof, in particular to a surface treatment agent for surface treatment of polytetrafluoroethylene products and a preparation method thereof. Background technique [0002] Fluorine resin, especially polytetrafluoroethylene (PTFE), is a kind of polymer material with excellent performance, which has good chemical stability, electrical insulation, low friction coefficient, chemical corrosion resistance and high mechanical strength, and is widely used It is widely used in chemical industry, machinery, aviation and other fields, but the wettability of polytetrafluoroethylene material is poor, the surface energy of the product is low, it is not conducive to bonding, printing and dyeing, coating, etc., and its biocompatibility is also poor, thus limiting its application range. Therefore, its surface must be treated. [0003] At present, the surface treatment methods of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/00C08L27/18
Inventor 徐下忠徐洪景亚宾颜华红童闻亮吴奕
Owner ZHEJIANG GREEN NEW MATERIALS
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