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Waste heat blackening agent, preparation method and use method

A technology of waste heat blackening and polycarbonate resin, which is applied in the coating process of metal materials, etc., to achieve the effect of no foaming, continuous, uniform and smooth film layer

Inactive Publication Date: 2020-01-03
HUNAN JINYU ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The neutral salt spray test time of this patent is only 48 hours after use, which is far lower than the 168 hours required by some customers

Method used

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  • Waste heat blackening agent, preparation method and use method
  • Waste heat blackening agent, preparation method and use method
  • Waste heat blackening agent, preparation method and use method

Examples

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Embodiment Construction

[0021] The present invention will be further described by the following examples, but not as a limitation of the present invention.

[0022] Table 1 shows the formulations of Examples 1-5 and Comparative Examples 1-2, and the unit is wt%.

[0023] The molecular weight of the polycarbonate resin used in the embodiment and the comparative example is 45000, brand: Wokai.

[0024] The vinyl resin is 901 vinyl resin from Langfang Vishay Anticorrosion Material Co., Ltd.; the polyoxyethylene ether of alkylphenol formaldehyde resin is Nongru No. 700; the manufacturer of sodium polyacrylate is Shenzhen Sendi Biotechnology Co., Ltd., CAS NO .for 9003-04-7.

[0025] Table 1 Formulas of Examples 1-5 and Comparative Examples 1-2, wt%.

[0026]

[0027] The preparation method of above waste heat blackening agent is as follows:

[0028] Weigh each component, blend, stir and dissolve evenly.

[0029] Preparation of working solution: When using, the stock solution of blackening agent mu...

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Abstract

The invention provides a waste heat blackening agent. The waste heat blackening agent is characterized by being prepared from the following components including, by weight, 13.3%-16.8 % of polycarbonate resin, 8.6%-10.3 % of vinyl resin, 6.6%-9.1 % of carbon black, 2.2%-3.2 % of alkylphenol formaldehyde resin polyoxyethylene, 1.8%-2.8 % of sodium polyacrylate, 0.8%-1.2 % of lauryl sodium sulfate and the balance water. The waste heat blackening agent is capable of performing micro roughening treatment on steel and stainless steel surfaces; the actual surface area of the metal surfaces can be obviously increased, and the adhesion property of the steel and stainless steel surfaces to an anti-corrosion layer and a shock insulation and noise reducing material is further improved.

Description

technical field [0001] The invention relates to a blackening agent, in particular to a waste heat blackening agent and a preparation method thereof. Background technique [0002] In order to prevent the corrosion and rust of steel parts and increase the appearance of the parts, the traditional method has been using the low-temperature alkaline blackening process. Although this process has been widely used for several years, it has cumbersome operations, high labor intensity, high production costs, and serious environmental pollution. and other shortcomings. The waste heat blackening agent is to clean the metal surface at the moment when the blackening agent contacts the metal, and at the same time use the tempering waste heat existing on the workpiece to make the organic compound film-forming material in the blackening agent react and deposit on the metal surface to form a The layer of protective film of polymer material containing coloring substances plays an effective ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/05C23C22/73
CPCC23C22/05C23C22/73
Inventor 桂成方桂林刘春花
Owner HUNAN JINYU ENVIRONMENTAL PROTECTION TECH CO LTD