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Plastic surface treatment method

A technology of plastic surface treatment and treatment method, applied in the field of plastic surface treatment, can solve the problems of affecting the bonding strength, difficult to infiltrate with adhesives, low surface energy, etc.

Inactive Publication Date: 2014-01-01
ZHANGJIAGANG JINFENG RUNERFA HARDWARE PLASTIC FACTORY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, their surface energy is lower than that of glass, ceramics, metal and other hydrophilic materials, and their surface often adheres to the release agent or escapes the plasticizer, so it is not easy to be infiltrated by the adhesive, thus affecting the bonding strength.

Method used

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Embodiment Construction

[0028] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0029] ginseng figure 1 Shown, the present invention discloses a kind of plastic surface treatment method, and this plastic surface treatment method comprises the following steps:

[0030] S1, using a degreasing solvent to degrease the plastic;

[0031] S2. Oxidation flame treatment, first use emery cloth to roughen the surface of the plastic, and then place the plastic on the oxidation flame for calcination;

[0032] S3, soak with sodium hydroxide solution for 3-5min, then rinse with cold water;

[0033] S4, activation treatment, dipping in the mixed solution of chromic acid and concentrated sulfuric acid for 5-10min;

[0034] S5, oxidation treatment, oxi...

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Abstract

The invention discloses a plastic surface treatment method. The plastic surface treatment method comprises the following steps: S1, allowing a plastic to be subjected to degreasing treatment by using a degreasing solvent; S2, performing oxidizing flame treatment: roughening the plastic surface by using a piece of abrasive cloth, and then placing the plastic above the oxidizing flame for calcination; S3, impregnating the plastic in a sodium hydroxide solution for 3-5 min, and then flushing the plastic with cold water; S4, performing activation treatment: impregnating the plastic in a mixed solution of chromic acid and concentrated sulphuric acid for 5-10 min; S5, performing oxidation treatment: performing oxidation on the plastic in a mixed solution of potassium dichromate and concentrated sulphuric acid for 5-7 min; S6, drying after washing. The plastic surface treatment method is simple in process; the treated plastic is easy to glue and high in joint strength.

Description

technical field [0001] The invention relates to the technical field of plastic surface treatment, in particular to a plastic surface treatment method. Background technique [0002] Plastics can be divided into two categories: thermoplastics and thermosetting plastics. In general, thermosets are easier to glue than thermoplastics. However, their surface energy is lower than that of glass, ceramics, metal and other hydrophilic materials, and their surface often adheres to the release agent or escapes the plasticizer, so it is not easy to be infiltrated by the adhesive, thus affecting the bonding strength. Therefore, surface treatment is generally required for plastics. Since there are many kinds of plastics and their properties vary greatly, the methods of surface treatment are also very different. [0003] In view of this, in order to solve the above technical problems, it is necessary to provide a plastic surface treatment method. Contents of the invention [0004] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/14C08J7/00C09J5/02
Inventor 沈玉忠
Owner ZHANGJIAGANG JINFENG RUNERFA HARDWARE PLASTIC FACTORY
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