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A kind of preparation method of slow-release composite gas-phase antirust paper

A gas-phase anti-rust paper, slow-release technology, applied in papermaking, paper, packaging paper, etc., can solve the problems of affecting the anti-rust function, weak combination of gas-phase anti-rust agent and paper, easy to fall off, etc., to achieve anti-rust effect. Long-lasting, stable anti-rust performance, strong bonding effect

Active Publication Date: 2019-08-16
广东顺德旋浩包装材料有限公司
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AI Technical Summary

Problems solved by technology

In this method, the gas-phase anti-rust agent is loaded on the paper by coating, but the combination of the gas-phase anti-rust agent and the paper is not firm, and it is easy to fall off, which affects the anti-rust function

Method used

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Embodiment Construction

[0017] A preparation method of slow-release composite vapor phase antirust paper, comprising the following steps:

[0018] (1) Dissolve 0.5kg of benzotriazole in 10kg of absolute ethanol first, then add 5kg of nano-zeolite powder and stir to mix evenly, then put it in a vacuum box for low-pressure treatment for 2 hours, evaporate the ethanol to dryness and grind evenly to obtain modified Zeolite powder;

[0019] (2) Add 0.5kg of chitosan into 80kg of acetic acid solution to fully dissolve, then add 5kg of the modified zeolite powder obtained in step (1) and stir evenly, and then spray dry to obtain a chitosan-modified zeolite composite;

[0020] (3) Add 4kg of chitosan-modified zeolite complex obtained in step (2), 2kg of acrylamide, and 0.3kg of polysorbate-80 into 100kg of water, mix well and adjust the pH to 7, then add 0.05kg of initiator , stirred and reacted at 70°C for 2 hours under nitrogen protection conditions, and obtained chitosan-modified zeolite-polyacrylamide c...

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Abstract

The invention discloses a method for preparing sustained-release composite volatile rust preventive paper. The method comprises the following steps: an anti-rust agent (benzotriazole) is loaded onto nanosized zeolite powder through a negative-pressure impregnation method, then spray drying is performed to coat the surface of the nanosized zeolite powder with chitosan to obtain a chitosan-modified zeolite compound, after that, graft copolymerization is performed on the chitosan-modified zeolite compound and acrylamide to obtain a chitosan-modified zeolite-polyacrylamide composite sol, the chitosan-modified zeolite-polyacrylamide composite sol is added into paper pulp, and papermaking is performed to obtain the sustained-release composite volatile rust preventive paper. According to the method, on the one hand, the sustained-release purpose of the anti-rust agent is achieved through multi-layer coating treatment, and the anti-rust effect is lasting, and on the other hand, the anti-rust agent and paper fibers are firmly combined to guarantee stable anti-rust performance.

Description

technical field [0001] The invention relates to the technical field of antirust paper, in particular to a preparation method of slow-release composite vapor phase antirust paper. Background technique [0002] Vapor phase antirust paper is a special antirust packaging material impregnated or coated with different formulations of special substances - vapor phase corrosion inhibitor (VCI), and processed through a series of post-processing. Vapor phase antirust paper is a packaging material that can volatilize special gas at room temperature. The volatilized gas can adhere to the metal surface to form a protective film, passivate the metal surface or deactivate the active point, so as to achieve the antirust effect. At present, vapor phase antirust paper can be used for the packaging of metal materials, components, electronic components, military equipment, instruments, etc., and has a wide range of uses. [0003] CN104005304A Composite halloysite nanotube-vapor phase antirust ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H17/69D21H17/07D21H17/34D21H27/10C08F251/00C08F220/56
CPCC08F251/00D21H17/07D21H17/34D21H17/69D21H17/74D21H27/10C08F220/56
Inventor 陈长兵阮学良王铜根
Owner 广东顺德旋浩包装材料有限公司
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