WO2010009606A1

WO2010009606A1 - Method for forming metal layer on surface of resin products

Info

Publication number: WO2010009606A1
Application number: PCT/CN2009/000711
Authority: WO
Inventors: 薛瑞宣
Original assignee: Xue Ruixuan
Priority date: 2008-07-24
Filing date: 2009-06-25
Publication date: 2010-01-28
Also published as: CN101634024B; CN101634024A

Abstract

A method for forming a metal layer on the surface of resin products is characterized by the following sequential steps: (1) the step of preparing a shaping prototype mold, checking the prototype mold and filling it well after preparing the shaping prototype mold, finally, grinding the prototype mold with waterproof abrasive paper of 200 mesh or more; (2) the step of rolling over the silica gel mold to obtain the final silica gel mold; (3) the step of applying metal powder layer onto silica gel mold, spreading the metal powders of 200 mesh or more in the mold and vibrating the mold uniformly; (4) the step of curing and molding; (5) the step of demolding; (6) the step of repairing, using the mixed repairing material of metal powders and unsaturated resins to carry out repairing at the surface defects of products or at the mold joint lines; (7) the step of polishing and coating a protective layer. The degree of finish is significantly improved through the preliminary treatment of mold surface with waterproof abrasive paper, the product is made to have more metal glossiness and vivid natural effects by incorporating the repair with the mixture of metal powders and unsaturated resins.

Description

Method for forming metal layer on surface of resin product

The present invention relates to a method of forming a metal layer on the surface of a resin article. Background technique

Due to the continuous improvement of people's living standards and the advancement of science and technology, various resin simulation metal products are constantly appearing in people's lives and work places, in order to achieve the purpose of reducing costs and improving decorative effects. A new method of forming a metal layer on the surface of a resin article.

For example, the Chinese patent "Method for Metallization of Surface of Resin Product" of Patent Application No. 200610090584.1 includes the following method steps: (1) fabrication of a semi-finished body; (2) surface treatment of a semi-finished body; (3) ) Curing protection treatment. The method of the invention obtains a certain metal texture on the surface of the resin product, has a good antique effect, rich layers, natural decoration effect, lower cost and electroplating, and is more environmentally friendly, and the method has the characteristics of wide application, such as: It is easy to operate in the practical and decorative materials such as resin crafts, resin waist line, resin garden, resin lighting. The defect is that the surface treatment of the mold is not enough, resulting in a small metallic luster on the surface of the formed resin product, which is not realistic and realistic, and the effect is not perfect enough, and further improvement is needed.

For example, a process of forming a metal layer on the surface of a resin molded article by the Chinese Patent No. 00108115.2, which puts a resin molded article and a fine metal powder-forming material into a processing container. The fine metal powder-forming material is brought into fluid contact with the surface of the resin-molded article, and as a result, fine metal powder is formed and a metal layer formed of the fine metal powder is formed on the surface of the resin-molded article. By this process, a strong, high-density metal layer formed of fine metal powder can be formed on the surface of the resin molded article. The metal layer has electrical conductivity. Therefore, a metal film having a precise thickness, a certain surface finish, and a high peel strength can be formed on the metal layer by a simple method by using a plating treatment. In addition, the metal layer itself may have functions and characteristics such as decoration. The drawback is that the gloss effect of the metal layer is not perfect, and it needs to be pressed, and the manufacturing is not suitable for the decorative product with complicated surface.

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Summary of the invention

The technical problem to be solved by the present invention is to provide a method for further forming a metal layer on the surface of a resin product by further improving the product to have a metallic luster feeling and a simple and practical method. The technical solution adopted by the present invention to solve the above technical problems is as follows: A method for forming a metal layer on a surface of a resin product, wherein the steps are:

(1) Preparing a molding mold step, after making the molding mold, inspecting the seed mold, filling the hole or deformation portion on the surface of the mold with a filler, and finally, grinding the seed mold with water sand of 200 mesh or more, so that The surface of the mold is smooth until the light is shining without fine pores;

(2) Turn the silicone mold step; turn out the final silicone mold;

(3) Applying the metal powder layer in the silicone mold, placing the metal powder of 200 mesh or more in the mold and shaking it evenly, flowing and bonding on the silicone mold, tapping the surface of the bonding mold to knock off the excess metal powder, which will be redundant Metal powder is recovered and taken away;

(4) Curing molding step, at least the mixture of unsaturated resin needs to be poured into a silica gel mold to adhere to the metal powder and then solidified;

(5) a demolding step;

(6 repairing steps; repairing with a mixture of metal powder and unsaturated resin at the surface defect or mold line of the product;

(7) Polishing and coating steps.

The filler is made of putty, or a mixture of unsaturated resin and stone powder, and the mass ratio of unsaturated resin to stone powder is 1: 0.3~1.9.

The water sand is recommended to use more than 400 mesh, and the metal powder is also above 400 mesh to achieve better results. The step of making the molding seed mold adopts the method of spraying the thin surface of the mold surface to check the flatness of the pores and the surface of the mold. If it is unqualified, it is necessary to repair the flattening with the mixture of the atomic ash or the unsaturated resin and the stone powder until the pass is passed, and further, to further Improve and improve the surface quality of the mold.

In the step of coating the metal powder layer in the silica gel mold, the copper powder or aluminum silver powder is used for the metal powder, and the excess metal powder is sucked and recovered by the electric vacuum cleaner to greatly improve the production efficiency. The method is simple and practical, and the metal powder on the inner surface is not easily broken. Floor.

In the curing molding step, the mixture of the resin and the resin is not mixed with the unsaturated resin and the stone powder, and the mass ratio of the unsaturated resin to the stone powder is 1:0.3-1.9, and the necessary curing agent for the unsaturated resin. Unsaturated resin generally requires 2 minutes to 40 minutes to cure. The curing agent is compatible with unsaturated resin and can be selected for use in this area of expertise. The stone powder has a particle size of 200 mesh or more, preferably 400 mesh or more.

In the curing molding step, after the mixture of the unsaturated resin is poured into the silica gel mold, the rock self-flow and the metal powder are bonded, and a layer of the mixture is also required to be applied, and when it is not dried, the cloth is attached as a fiberglass cloth, and then hit. A soup containing an unsaturated resin of a curing agent. This can greatly increase the strength of the product.

In the curing molding step, after the soup is beaten, a layer of the mixture is finally brushed to flatten the inner wall.

The last step of making the molding seed mold includes:

(1) making clay products or resin products, plastic products, gypsum products;

(2) Spraying oil on the product; (3) making a preliminary silicone mold on the surface of the product;

(4) Using the preliminary silica gel mold to produce the model required by the design.

Compared with the prior art, the invention has the advantages that: the water surface sanding treatment of the initial mold surface greatly improves the smoothness, and the repair of the metal powder and the unsaturated resin mixture is combined to make the product have a metallic luster feeling, and the effect is more natural and realistic. The special equipment is used to recover the metal powder, which not only improves the production efficiency, saves the material cost, but also is easy to operate, does not easily damage the metal powder layer, and provides good conditions for the uniform molding of large products, and is strengthened by using a cloth such as a fiberglass layer. , the product strength is improved, the material consumption is saved, the cost is reduced, and the method is simple and practical, and is easy to implement. DRAWINGS

Figure 1 is a flow chart of the entire process of the present invention. detailed description

The invention will be further described in detail below with reference to the embodiments of the drawings.

Implementation example 1

As shown in the figure, a method for forming a metal layer on the surface of a resin article, the steps are as follows:

(1) making clay sculptures, carving clay products according to the shape of the product flower beds;

(2) Spraying oil on clay products, using nitro varnish or self-drying paint;

(3) Making a preliminary silicone mold, and then molding the preliminary betel nut required by the design;

(4) Making a preliminary mold, using a preliminary silicone mold to make a preliminary mold such as a flower bed;

(5) Modifying the preliminary mold:

(5. 1) The surface of the mold of the preliminary mold is filled with putty (or a mixture of unsaturated resin and stone powder as a filler). If the bubbles, deformation, etc. are filled flat, the mass ratio of the mixture of unsaturated resin and stone powder is 1: 1. If the resin is not saturated, it can be cured within 2 minutes to 40 minutes. Add the curing agent to the resin. The 191 resin can be used for the unsaturated resin. The curing agent is selected according to the specific unsaturated resin. These are the common knowledge of the technology in the field. The atomic ash is made of ordinary ordinary putty, and the stone powder requires 200 mesh or more, preferably 400 mesh or more;

(5. 2) Spray a thin layer of paint such as self-drying paint on the surface of the preliminary mold to check the flatness of the pores and the surface of the mold;

(5. 3) If there is a defect in the surface of the preliminary mold, repair it with the filler of the atomic ash or unsaturated resin and the stone powder;

(5. 4) Use water sand of 200 mesh or more, such as 400 mesh water sand, to polish it to the light without shining fine pores, which can not be observed by the naked eye. If it is not up to the requirement, repeat (3) (4) )) (6), turn the silicone mold: turn out the final silicone mold;

(7), metal powder coating in the silicone mold: metal powder is selected from 200 mesh or more metal powder such as 400 mesh copper powder, or aluminum silver powder, placed in the mold to evenly shake the soil, flow bonding on the silicone mold, tap bonding The surface of the mold is knocked out of excess metal powder, and all excess metal powder is extracted by a vacuum cleaner;

(8) Curing molding step -.

(8.1) The mixture of unsaturated resin is a mixture of unsaturated resin and stone powder, the ratio of unsaturated resin to stone powder is 1:1, and the necessary curing agent for unsaturated resin, pour the mixture into silica gel. The rock in the mold is self-flowing and bonding with metal powder, and the curing time is 2 minutes to 1Q minutes;

(8. 2) brush a layer of unsaturated resin mixture; '

( 8. 3 ) After brushing a layer of the mixture, when it is not dry, the patch is made of fiberglass cloth;

(8. 4) playing the soup, using the same unsaturated resin, containing a curing agent, and curing in the mold;

( 8. 5 ) Finally, brush a layer of mixture and brush the inner wall;

(9) Demoulding: The time after the product has completely cured is more than 15 minutes, demoulding;

(10) Repair: repair the surface of the product at the defect or the mold line with a mixture of metal powder and unsaturated resin. The mass ratio of the metal powder to the resin of the mixed repair material can be any ratio, according to actual needs. Modulation, metal powder and unsaturated resin use the same metal and resin as the product, the metal powder particle size is above 20Q mesh, such as 400 mesh;

(11), polishing and coating the protective layer, waxing and polishing the product in the polishing machine to make it appear natural metal effect, spraying with special antioxidant, and the antioxidant is made of acrylic self-drying paint. Implementation example

(2) Spraying bright oil on clay products, using nitro varnish or self-drying paint;

(3) making a preliminary silicone mold, and then molding the preliminary mold required by the design;

(5) Modifying the preliminary mold:

( 5. 1 ) The surface of the mold of the preliminary mold is filled with putty (or a mixture of unsaturated resin and stone powder as a filler). If the bubbles, deformation, etc. are filled flat, the mass ratio of the mixture of unsaturated resin and stone powder is 1: 0.3, the unsaturated resin can be cured within 2 minutes to 40 minutes, and the curing agent is not added to the resin. The unsaturated resin can be selected from 191 resin or other process resin. The curing agent is determined according to the specific one type of unsaturated. Resin, selected, these are the common knowledge of the technology in the field, the atomic ash is made of common ordinary putty, the stone powder requires 200 mesh or more, preferably 4QQ mesh or more;

(5. 2) Spray a thin layer of paint on the surface of the preliminary mold, such as self-drying paint, to check the pores and the surface of the mold. Degree

( 5. 3 ) If there is a defect in the surface of the preliminary mold, repair it with the filler of the atomic ash or unsaturated resin and the stone powder;

(5. 4) Use water sand of 200 mesh or more, such as 400 mesh water sand, to smooth it to the light without shining fine pores. If it is not up to the requirements, repeat the work of (3) (4));

(6), turn the silicone mold: turn out the final silicone mold;

(7), the metal powder coating in the silicone mold: the metal powder is selected from 200 mesh or more metal powder such as 400 mesh copper gold powder, or aluminum silver powder, placed in the mold evenly, the flow is bonded to the silicone mold, tapping the bonding The surface of the mold is knocked out of excess metal powder, and all excess metal powder is extracted by a vacuum cleaner;

(8) Curing molding steps:

(8.1) The mixture of unsaturated resin is a mixture of unsaturated resin and stone powder. The mass ratio of unsaturated resin to stone powder is 1:0.3, and the necessary curing agent for unsaturated resin. Pour the mixture into the silicone mold. Internal rock self-flow and metal powder bonding, curing time 2 minutes ~ 10 minutes;

( 8. 2) brushing a layer of unsaturated resin mixture;

(8. 3) After brushing a layer of the mixture, when it is not dry, the patch is made of fiberglass cloth;

(8. 5) Finally, brush a layer of mixture and brush the inner wall;

(10) Repair: repair the surface of the product at the defect or the mold line with a mixture of metal powder and unsaturated resin. The mass ratio of the metal powder to the resin of the mixed repair material can be any ratio, according to actual needs. Modulation, metal powder and unsaturated resin are the same metal and resin as the product, and the metal powder has a particle size of 200 mesh or more, such as 400 mesh;

(11), polishing and coating the protective layer, waxing and polishing the product in the polishing machine to make it appear natural metal effect, spraying with special antioxidant, and the antioxidant is made of acrylic self-drying paint. Implementation example 3

As shown in the figure, a method for forming a metal layer on the surface of a resin article, the steps of which are -

(1) making clay sculptures, carving clay products according to the shape of the product vase;

(2) Spraying oil on clay products, using nitro varnish or self-drying paint;

(4) Making a preliminary mold, using a preliminary silicone mold to make a preliminary mold such as a vase to form a design requirement;

(5) Modifying the preliminary mold:

(5. 1) The surface of the mold of the preliminary mold is filled with putty (or a mixture of unsaturated resin and stone powder as a filler). If the bubbles, deformation, etc. are filled flat, the mass ratio of the mixture of unsaturated resin and stone powder is 1: 1.9, not full of trees The grease can be cured within 2 minutes to 40 minutes. The curing agent is added to the resin. The unsaturated resin can be selected from 191 resin or other process resin. The curing agent is selected according to the specific unsaturated resin. These are the common knowledge of the technology in the field. The atomic ash is made of ordinary ordinary putty, and the stone powder requires 200 mesh or more, preferably 400 mesh or more;

(5. 4) Polishing with water sand of more than 200 mesh, such as 400 mesh water sand, to the light without shining fine pores. If the requirements are not met, repeat the work of (3) (4);

(6), turn the silicone mold: turn out the final silicone mold;

(8) Curing molding steps:

(1. 1) The mixture of unsaturated resin is made of unsaturated resin and stone powder mixture. The ratio of unsaturated resin to stone powder is 1: 1.9, and the necessary curing agent for unsaturated resin. Pour the mixture into the silicone mold. Internal rock self-flow and metal powder bonding, curing time 2 minutes ~ 10 minutes;

( 8. 2) brushing a layer of unsaturated resin mixture;

(8. 5) Finally, brush a layer of mixture and brush the inner wall;

(10) Repair: repair the surface of the product at the defect or the mold line with a mixture of metal powder and unsaturated resin. The mass ratio of the metal powder to the resin of the mixed repair material can be any ratio, according to actual needs. Modulation, metal powder and unsaturated resin using the same metal and resin as the product, the metal powder particle size is above 200 mesh, such as 400 mesh;

(11), polishing and coating the protective layer, waxing and polishing the product in the polishing machine to make it appear natural metal effect, spraying with special antioxidant, and the antioxidant is made of acrylic self-drying paint.

Claims

Claim

A method for forming a metal layer on a surface of a resin product, characterized in that the steps are:

(2) Turn the silicone mold step; turn out the final silicone mold;

(5) a demolding step;

(6) Repairing step; repairing with a mixture of metal powder and unsaturated resin at the surface defect or mold line of the product;

(7) Polishing and coating steps.

2. The method according to claim 1, characterized in that the step of preparing the molding mold, the filler is made of putty, or the mixture of unsaturated resin and stone powder, the mass ratio of unsaturated resin to stone powder is 1: 0.3~1.9 .

3. The method according to claim 2, characterized in that the step of preparing the molding mold, the method of spraying the thin surface of the mold surface, checking the flatness of the pores and the surface of the mold, and if it is unqualified, the use of the atomic ash is required. Or the mixture of unsaturated resin and stone powder is repaired and leveled again until it is qualified.

4. The method according to claim 1, characterized in that the step of coating the metal powder layer in the silicone mold, the metal powder is made of copper gold powder or aluminum silver powder, and the excess metal powder is sucked and recovered by a vacuum cleaner.

5. The method according to claim 1, characterized in that in the curing molding step, the mixture of the unsaturated resin is mixed with the unsaturated resin and the stone powder, and the mass ratio of the unsaturated resin to the stone powder is 1: 0.3-1.9. And the necessary curing agent for the unsaturated resin.

6. The method according to claim 1, characterized in that in the curing forming step, the mixture of the unsaturated resin is poured into the silicone mold, and after the rock self-flow and the metal powder are bonded, a layer of the mixture is also required to be brushed. Apply the cloth when it is not dry, and then apply the soup containing the unsaturated resin of the curing agent.

7. The method according to claim 6, characterized in that in the curing molding step, after the soup is poured, a layer of the mixture is finally brushed to flatten the inner wall.

8. A method according to any one of claims 1 to 7, characterized in that said step of making a prototype is comprised of:

(1) making clay products or resin products, plastic products, gypsum products; (2) spraying oil on the product;

(3) making a preliminary silicone mold on the surface of the product;

9. A method according to any one of claims 1 to 7, characterized in that the water sand shovel is used above 400 mesh.

A method according to any one of claims 1 to 7, wherein said metal powder is more than 400 mesh.