Anti-aging treatment method for rubber with low temperature plasma

A technology of low-temperature plasma and treatment method, which is applied in the field of surface modification of rubber materials, can solve the problems of anti-aging coatings such as weak binding force, easy falling off, and damage, and achieve the goal of enhancing binding force, improving adsorption activity, and improving uniformity Effect

Inactive Publication Date: 2013-04-10
AIR FORCE UNIV PLA
2 Cites 5 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0005] In order to avoid the deficiencies of the prior art, the present invention proposes a low-temperature plasma rubber anti-aging treat...
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Method used

Through XeF The nitrile rubber hardness after processing increases slightly, and strong elongation performance has descending in various degrees, and resistance to medium performance, friction characteristic and oil resistance have o...
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Abstract

The invention relates to an anti-aging treatment method for rubber with low temperature plasma. The treatment method is characterized in that the treatment method comprises the steps of mounting a clean rubber part with impurities being removed on an electrically-controlled motion platform, filling anti-aging agent gas into an ionization tube, exhausting air in the ionization tube, switching on a high-voltage pulse power supply to ionize the anti-aging agent gas, moving the electrically-controlled motion platform, allowing the ionized gas to be blown the surface of the rubber part, and conducting anti-aging treatment on the whole surface of the rubber part. Compared with the conventional treatment method, the anti-aging treatment method has the advantages that: 1, as the plasma is higher in energy, a molecular bond and a chemical bond on the surface of the rubber can be opened, impurity molecules on the surface of the rubber can be removed, the surface adsorption activity of the rubber can be improved, a binding force of the surface of the rubber with an anti-aging coating can be greatly increased, and 2, anti-aging agent ions are chemically bonded with a rubber surface material easily, a deeper anti-aging layer is formed, the problems of weak binding force, and high possibility of falling and breaking do not exist, and the uniformity of a protective layer can be greatly improved through the processing of the electrically-controlled motion platform.

Application Domain

Coatings

Technology Topic

IonizationChemical bond +11

Image

  • Anti-aging treatment method for rubber with low temperature plasma

Examples

  • Experimental program(2)

Example Embodiment

[0023] Example 1: When the anti-aging agent is gas, the material to be treated is nitrile rubber, and the anti-aging agent is XeF2. The anti-aging treatment steps of low-temperature plasma rubber are as follows:
[0024] Step 1: Clean and remove impurities such as oil and dust on the surface of the nitrile rubber 8, and install the nitrile rubber 8 on the electronically controlled movement platform 9;
[0025] Step 2: Convert XeF 2 The anti-aging agent gas 2 is passed into the ionization tube 1, and the air in the ionization tube 1 is drained;
[0026] Step 3: Turn on the high-voltage pulse power supply 5 and set the XeF 2 The anti-aging agent gas 2 is ionized, and the discharge frequency and flow control valve 7 are adjusted to ensure that the aging agent gas is completely ionized and blown to the surface of the rubber 8;
[0027] Step 4: Control the movement of the moving platform 9 to ensure that all the rubber surfaces are blown by the gas ions 7, so that all the surfaces of the rubber parts are treated with anti-aging.

Example Embodiment

[0028] Example 2: When the anti-aging agent is solid, the anti-aging treatment steps of low-temperature plasma rubber are as follows:
[0029] Step 1: Clean and remove impurities such as oil and dust on the surface of the rubber part 8, and install the rubber part 8 on the electronically controlled movement platform 9;
[0030] Step 2: After the anti-aging agent is heated, the anti-aging agent gas is obtained, and then the anti-aging agent gas is passed into the ionization tube, and the air in the ionization tube is drained;
[0031] Step 3: Turn on the high-voltage pulse power supply, ionize the anti-aging agent gas, control the flow of the anti-aging agent gas, and blow the gas ions to the surface of the rubber part;
[0032] Step 4: Control the movement of the moving platform to ensure that all the rubber surfaces are blown by the ionized gas, so that all the surfaces of the rubber parts are treated with anti-aging.
[0033] Example 2: When the anti-aging agent is liquid, the material to be treated is nitrile rubber, and the anti-aging agent is 0.5% antioxidant BHT solution with 1% nano-TiO added 2 Powder, the processing method includes the following steps:
[0034] Step 1: Clean and remove impurities such as oil and dust on the surface of the rubber parts;
[0035] Step 2: Turn on the power of the low-temperature plasma generator, and scan the electrode closely on the rubber surface to ensure that the entire surface is scanned 3-5 times.
[0036] Step 3: Stir the anti-aging agent evenly and apply it on the rubber surface.
[0037] After XeF 2 The hardness of the treated nitrile rubber increased slightly, the strength and elongation properties decreased to varying degrees, and the media resistance, friction properties and oil resistance were significantly improved. After 0.5% antioxidant BHT solution added 1% nano TiO 2 After the powder anti-aging agent treatment, the anti-oxidation performance, abrasion resistance, anti-ultraviolet and ozone properties of the nitrile rubber have been significantly improved.
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