Carbon fiber surface oiling agent changing apparatus

Abstract

A carbon fiber surface oiling agent changing apparatus includes a feeding module, a receiving module, a desizing module, a plasma surface treatment module, and a sizing module. A carbon fiber yarn released from the feeding module is sequentially processed at a predetermined speed to perform the steps of desizing, plasma surface treatment, sizing, and so on, in a relatively more active and reliable manner. Particularly, the surface of the carbon fiber yarn is roughened and is provided with functional groups, which is beneficial to achieve high-quality interface bonding of the carbon fiber yarn and the matrix resin in the subsequent sizing step, thereby enhancing the characteristics of carbon fiber composite materials.

What is claimed is: 
     
         1 . A carbon fiber surface oiling agent changing apparatus, comprising:
 a feeding module, capable of providing a carbon fiber yarn, the carbon fiber yarn being coated with a first oiling agent;   a receiving module, disposed in the vicinity of the feeding module and corresponding to the feeding module to constitute a carbon fiber yarn drag route, the receiving module including at least one yarn winding assembly to receive the carbon fiber yarn released from the feeding module and to perform a drag action on the carbon fiber yarn;   a desizing module, disposed at the carbon fiber yarn drag route between the feeding module and the receiving module for removing the first oiling agent;   a plasma surface treatment module, disposed at the carbon fiber yarn drag route between the desizing module and the receiving module for providing a plasma gas flow to act on the carbon fiber yarn; and   a sizing module, disposed at the carbon fiber yarn drag route between the plasma surface treatment module and the receiving module for coating a second oiling agent on the carbon fiber yarn.   
     
     
         2 . The carbon fiber surface oiling agent changing apparatus as claimed in  claim 1 , wherein the plasma surface treatment module is provided with at least one plasma generator. 
     
     
         3 . The carbon fiber surface oiling agent changing apparatus as claimed in  claim 1 , wherein the plasma surface treatment module is provided with at least one plasma generator located at upper and lower positions of the carbon fiber drag route, respectively. 
     
     
         4 . The carbon fiber surface oiling agent changing apparatus as claimed in  claim 2 , wherein the plasma generator is able to generate the plasma gas flow having a power in the range of 100-10000 Watts. 
     
     
         5 . The carbon fiber surface oiling agent changing apparatus as claimed in  claim 2 , wherein the plasma generator is able to generate an atmospheric plasma gas flow having a power in a range of 100-10000 Watts. 
     
     
         6 . The carbon fiber surface oiling agent changing apparatus as claimed in  claim 2 , wherein the plasma generator is able to generate a low-pressure plasma gas flow having a power in the range of 100-10000 Watts. 
     
     
         7 . The carbon fiber surface oiling agent changing apparatus as claimed in  claim 2 , wherein the plasma generator is able to generate a microwave plasma gas flow having a power in the range of 100-10000 Watts. 
     
     
         8 . The carbon fiber surface oiling agent changing apparatus as claimed in  claim 2 , wherein the plasma generator is able to generate a glow plasma gas flow having a power in the range of 100-10000 Watts. 
     
     
         9 . The carbon fiber surface oiling agent changing apparatus as claimed in  claim 1 , wherein the desizing module is provided with at least one desizing furnace capable of generating a heat source having a temperature of 250-650° C. 
     
     
         10 . The carbon fiber surface oiling agent changing apparatus as claimed in  claim 1 , wherein the sizing module is provided with at least one reservoir for storing the second oiling agent. 
     
     
         11 . The carbon fiber surface oiling agent changing apparatus as claimed in  claim 1 , further comprising a drying module, the drying module being disposed at the carbon fiber drag route between the sizing module and the receiving module, enabling the second oiling agent to be firmly adhered to the surface of the carbon fiber yarn.