Multifunctional antistatic non-woven fabric and fabrication method thereof

Abstract

The invention provides a conductive powder composite including a bamboo charcoal powder pre-processed with a pulverizing procedure and a refining procedure of 900 to 1500° C. and a conductive carbon black powder, wherein the bamboo charcoal powder and the conductive carbon black powder are blended by a high speed mechanical granulating machine to form the conductive powder composite. The conductive powder composite can simultaneously and effectively improve the poor conductivity of the bamboo charcoal powder and the embrittlement characteristic of the conductive carbon black powder in the conventional technology. The invention also provides a conductive masterbatch and a fabrication method thereof, and a multifunctional antistatic non-woven fabric and a fabrication method thereof.

1 . A conductive powder composite, comprising:
 a bamboo charcoal powder pre-processed with a pulverizing procedure and a refining procedure of 900 to 1500° C.; and   a conductive carbon black powder,   wherein the bamboo charcoal powder and the conductive carbon black powder are blended by a high speed mechanical granulating machine to form the conductive powder composite.   
     
     
         2 . The conductive powder composite according to  claim 1 , wherein the bamboo charcoal powder is contained in an amount ranging from 25 to 75% by weight based on the total weight of the conductive powder composite. 
     
     
         3 . The conductive powder composite according to  claim 1 , wherein the conductive carbon black powder is contained in an amount ranging from 25 to 75% by weight based on the total weight of the conductive powder composite. 
     
     
         4 . The conductive powder composite according to  claim 1 , wherein volume resistivity of the conductive powder composite is within a range of from 10 0  to 10 2  ohm-cm. 
     
     
         5 . A conductive powder composite, comprising:
 a bamboo charcoal powder pre-processed with a pulverizing procedure and a refining procedure of 900 to 1500° C.; and   a conductive carbon black powder,   wherein the bamboo charcoal powder and the conductive carbon black powder are blended by a high speed agitating machine to form the conductive powder composite.   
     
     
         6 . The conductive powder composite according to  claim 5 , wherein the bamboo charcoal powder is contained in an amount ranging from 25 to 75% by weight based on the total weight of the conductive powder composite. 
     
     
         7 . The conductive powder composite according to  claim 5 , wherein the conductive carbon black powder is contained in an amount ranging from 25 to 75% by weight based on the total weight of the conductive powder composite. 
     
     
         8 . The conductive powder composite according to  claim 5 , wherein volume resistivity of the conductive powder composite is within a range of from 10 0  to 10 2  ohm-cm. 
     
     
         9 . A conductive masterbatch, comprising:
 (A) 5 to 50% by weight of a conductive powder composite according to any of  claims 1  to  8 , based on the total weight of the conductive masterbatch;   (B) 5 to 25% by weight of a dispersant, based on the total weight of the conductive masterbatch; and   (C) balance to 100% of a polymer material,   wherein said components (A) to (C) are compounded by using an extruder to form the conductive masterbatch.   
     
     
         10 . The conductive masterbatch according to  claim 9 , wherein the conductive powder composite is contained in an amount ranging from 5 to 30% by weight based on the total weight of the conductive masterbatch. 
     
     
         11 . The conductive masterbatch according to  claim 9 , wherein the dispersant is contained in an amount ranging from 5 to 20% by weight based on the total weight of the conductive masterbatch. 
     
     
         12 . The conductive masterbatch according to  claim 9 , wherein the dispersant is polyolefine-based copolymer, polyester-based copolymer, nylon-based copolymer, silane coupling agent, titanium coupling agent or montanic wax. 
     
     
         13 . The conductive masterbatch according to  claim 12 , wherein the dispersant is a combination of polyester-based copolymer and montanic wax. 
     
     
         14 . The conductive masterbatch according to  claim 9 , wherein the polymer material is PTT (polytrimethylene terephthalate), PBT (polybutylene terephthalate), PET (polyethylene terephthalate), PP (polypropylene), PE (polyethylene), Nylon 6(polyamide 6), Nylon 6,12(polyamide 6,12), Nylon 6,6(polyamide 6,6) or a combination thereof. 
     
     
         15 . The conductive masterbatch according to  claim 14 , wherein the polymer material is PBT (polybutylene terephthalate). 
     
     
         16 . The conductive masterbatch according to  claim 9 , wherein surface resistivity of the conductive masterbatch is within a range of from 10 3  to 10 6  ohm/sq. 
     
     
         17 . A method of fabricating a conductive masterbatch, comprising the steps of:
 (a) providing a conductive powder composite according to any of  claims 1  to  8 , in an amount ranging from 5 to 50% by weight based on the total weight of the conductive masterbatch;   (b) providing a dispersant, in an amount ranging from 5 to 25% by weight based on the total weight of the conductive masterbatch;   (c) providing a polymer material balance to 100% by weight of the conductive masterbatch; and   (d) compounding the conductive powder composite, the dispersant, and the polymer material by an extruder to form the conductive masterbatch.   
     
     
         18 . The method according to  claim 17 , wherein the conductive powder composite is contained in an amount ranging from 5 to 30% by weight based on the total weight of the conductive masterbatch. 
     
     
         19 . The method according to  claim 17 , wherein the dispersant is contained in an amount ranging from 5 to 20% by weight based on the total weight of the conductive masterbatch. 
     
     
         20 . The method according to  claim 17 , wherein the dispersant is polyolefine-based copolymer, polyester-based copolymer, polyamide-based copolymer, silane coupling agent, titanium coupling agent or montanic wax. 
     
     
         21 . The method according to  claim 20 , wherein the dispersant is a combination of polyester-based copolymer and montanic wax. 
     
     
         22 . The method according to  claim 17 , wherein the polymer material is PTT (polytrimethylene terephthalate), PBT (polybutylene terephthalate), PET (polyethylene terephthalate), PP (polypropylene), PE (polyethylene), Nylon 6(polyamide 6), Nylon 6,12(polyamide 6,12), Nylon 6,6(polyamide 6,6) or a combination thereof. 
     
     
         23 . The method according to  claim 22 , wherein the polymer material is PBT (polybutylene terephthalate). 
     
     
         24 . The method according to  claim 17 , wherein surface resistivity of the conductive masterbatch is within a range of from 10 3  to 10 6  ohm/sq. 
     
     
         25 . A method of fabricating a multifunctional antistatic non-woven fabric, comprising the steps of:
 (I) providing a conductive masterbatch according to any of  claims 9  to  16 ; and   (II) feeding the conductive masterbatch into a melt-blown machine, the conductive masterbatch being melt-blown through a nozzle and extended to form a fiber by a gas flow of 220 to 300° C. with a flow rate of 2,000 to 4,000 m/min, and then the fiber being spray on a steel net to form the multifunctional antistatic non-woven fabric.   
     
     
         26 . A multifunctional antistatic non-woven fabric fabricated from the method of fabricating a multifunctional antistatic non-woven fabric according to  claim 25 . 
     
     
         27 . The multifunctional antistatic non-woven fabric according to  claim 26 , wherein surface resistivity of the multifunctional antistatic non-woven fabric is within a range of from 10 5  to 10 10  ohm/sq.