Composite and method for making the same

Abstract

A composite includes a substrate and at least a resin composition formed on the substrate. A surface of the substrate is defined a plurality of micro-pores therein. The resin composition is coupled to the surface having the micro-pores by the resin composition filling and hardening within the micro-pores. The resin composition contains crystalline thermoplastic synthetic resins. A method for making the composite is also described.

What is claimed is: 
     
         1 . A method for making a composite, comprising:
 providing a substrate;   laser etching the substrate to form a plurality of micro-pores in a surface of the substrate; and   inserting the substrate in a mold and molding crystalline thermoplastic synthetic resin on the surface of the substrate, wherein the micro-pores form the composite by the resin composition filling and hardening within the micro-pores.   
     
     
         2 . The method as claimed in  claim 1 , wherein diameter of the micro-pores is in a range of about 1 μm-100 μm, depth of the micro-pores is in a range of about 1 μm-200 μm, and each two adjacent micro-pores have a space between them of about 10 μm-200 μm. 
     
     
         3 . The method as claimed in  claim 1 , wherein the laser etching process is carried out using a laser machine having the parameters of, power: 10 W-30 W, frequency: 20 KHZ-60 KHZ, and step length: 0.005 μm-0.1 μm. 
     
     
         4 . The method as claimed in  claim 1 , wherein the substrate is made of metal, glass, or ceramic. 
     
     
         5 . The method as claimed in  claim 1 , wherein the metal is stainless steel, aluminum alloy, magnesium alloy, or copper alloy. 
     
     
         6 . The method as claimed in  claim 1 , wherein the crystalline thermoplastic synthetic resin is polyphenylene sulfide, polyamide, polybutylene terephthalate, or polyethylene terephthalate. 
     
     
         7 . The method as claimed in  claim 1 , wherein a portion of the crystalline thermoplastic synthetic resin insert in and fill the micro-pores of the substrate. 
     
     
         8 . The method as claimed in  claim 1 , wherein the micro-pores are regularly distributed in an array in the surface of the substrate. 
     
     
         9 . The method as claimed in  claim 1 , wherein the micro-pores are irregularly distributed in the surface of the substrate.