Article and manufacturing method of article

1. An article having a surface comprising:

a thermoplastic resin, metal-resin composite particles, and pores,

wherein the metal-resin composite particles comprise a metal deposition layer, a first coating layer positioned on one side of the metal deposition layer, and a second coating layer positioned on the other side of the metal deposition layer, and

the first coating layer and second coating layer include a thermosetting resin respectively, wherein the thermosetting resin comprises a silicone resin and wherein at least one of the first coating layer and the second coating layer further includes polyvinyl butyral (PVB),

wherein the thermoplastic resin comprises a polyalkyl(meth)acrylate resin,

wherein the metal-resin composite particles have a flat surface, and wherein the flat surface of the metal-resin composite particles has an angle of about 0° to about 30° with reference to the surface of the article, and

wherein the metal-resin composite particles are included in an amount of about 0.1 to about 2.0 parts by weight based on about 100 parts by weight of the thermoplastic resin.

2. The article of claim 1 , wherein the pores have an average particle diameter of about 10 μm to about 1000 μm.

3. The article of claim 1 , wherein the metal deposition layer is an aluminum deposition layer.

4. The article of claim 1 , wherein the thermosetting resin has a refractive index of about 1.45 to about 1.55.

5. The article of claim 1 , wherein the first coating layer and second coating layer are independently transparent or translucent.

6. The article of claim 1 , wherein the metal-resin composite particles further comprise at least one thermoplastic resin layer,

wherein the thermoplastic resin layer is positioned on at least one of an external surface of the first coating layer and an external surface of the second coating layer.

7. The article of claim 1 , wherein the metal-resin composite particles have a thickness of about 1.01 μm to about 100 μm.

8. The article of claim 1 , wherein the metal-resin composite particles have an average particle diameter of about 2 μm to about 2000 μm.

9. The article of claim 1 , wherein the metal-resin composite particles are uniformly dispersed in the article.

10. The article of claim 1 , wherein the thermoplastic resin has a refractive index of about 1.45 to about 1.55.

11. The article of claim 1 , wherein the thermoplastic resin is transparent or translucent.

12. The article of claim 1 , wherein the article has a flop index of about 11 to about 25, a sparkle intensity of about 8 to about 20, and luminance of about 70 to about 100% measured based on a gloss level at an angle of about 60°.

13. The article of claim 1 , wherein the metal-resin composite particles and the pores are distributed throughout the thermoplastic resin of the article.

14. The article of claim 1 , wherein the metal-resin composite particles are included in an amount of about 0.2 to about 0.5 parts by weight based on about 100 parts by weight of the thermoplastic resin.

15. A method of manufacturing an article, comprising

adding a resin composition including a thermoplastic resin and metal-resin composite particles to an injection apparatus cylinder followed by melting/kneading to prepared a first mixture,

injecting a gas into the first mixture to prepare a second mixture, and

injection-molding the second mixture to manufacture an article,

wherein the metal-resin composite particles comprise a metal deposition layer, a first coating layer positioned on one side of the metal deposition layer, and a second coating layer positioned on the other side of the metal deposition layer,

the first coating layer and second coating layer comprises a thermosetting resin respectively, and

the article comprises pores,

the metal-resin composite particles have a flat surface, and wherein the flat surface of the metal-resin composite particles has an angle of about 0° to about 30° with reference to the surface of the article,

the first coating layer and second coating layer include a thermosetting resin respectively, wherein the thermosetting resin comprises a silicone resin and wherein at least one of the first coating layer and the second coating layer further includes polyvinyl butyral (PVB),

the thermoplastic resin comprises a polyalkyl(meth)acrylate resin, and

the metal-resin composite particles are included in an amount of about 0.1 to about 2.0 parts by weight based on about 100 parts by weight of the thermoplastic resin.

16. The method of claim 15 , wherein the gas comprise nitrogen, carbon dioxide, butane, pentane, or a combination thereof.

17. The method of claim 15 , wherein the second mixture is a supercritical fluid.