Fiber fabric and molded article obtainable by molding fiber fabric

Abstract

Provided is a fiber fabric excellent in high mechanical strength and shapability. The fiber fabric comprising warps and wefts: wherein either one of the warps and the wefts is configured by a polyamide resin fiber composed of a polyamide resin composition, and the other is configured by a continuous carbon fiber; in an arbitrary square area of the fiber fabric, one side of the arbitrary square area is aligned in parallel to the warps, and other one side of the arbitrary square area is aligned in parallel to the wefts, the continuous carbon fiber has an average length 1.1 to 1.6 times longer than the length of a side of the square; the polyamide resin composition contains a polyamide resin in which 50% by mole or more of diamine structural units thereof is derived from xylylenediamine; and wherein the polyamide resin has a number-average molecular weight (Mn) of 6,000 to 30,000, and 0.5 to 5% by mass of the polyamide resin has a molecular weight of 1,000 or smaller.

1 . A fiber fabric comprising warps and wefts:
 wherein either one of the warps and the wefts is configured by a polyamide resin fiber composed of a polyamide resin composition, and the other is configured by a continuous carbon fiber;
 in an arbitrary square area of the fiber fabric, one side of the arbitrary square area is aligned in parallel to the warps, and other one side of the arbitrary square area is aligned in parallel to the wefts, the continuous carbon fiber has an average length 1.1 to 1.6 times longer than the length of a side of the square; 
 the polyamide resin composition contains a polyamide resin in which 50% by mole or more of diamine structural units thereof is derived from xylylenediamine; and 
   wherein the polyamide resin has a number-average molecular weight (Mn) of 6,000 to 30,000, and 0.5 to 5% by mass of the polyamide resin has a molecular weight of 1,000 or smaller.   
     
     
         2 . The fiber fabric of  claim 1 , wherein the polyamide resin fiber has an average length 1.0 to 1.6 times longer than the length of a side of the square. 
     
     
         3 . The fiber fabric of  claim 1 , having a weight per unit area of 50 to 1000 g/m2. 
     
     
         4 . The fiber fabric of  claim 1 , wherein the polyamide resin contains 0.01 to 1% by mass of a cyclic compound. 
     
     
         5 . The fiber fabric of  claim 1 , having a ratio of average fineness of the polyamide resin fiber and average fineness of the continuous carbon fiber (average fineness of polyamide resin fiber/average fineness of continuous carbon fiber) of 20/80 to 80/20. 
     
     
         6 . (canceled) 
     
     
         7 . The fiber fabric of  claim 2 , having a weight per unit area of 50 to 1000 g/m2. 
     
     
         8 . The fiber fabric of  claim 2 , wherein the polyamide resin contains 0.01 to 1% by mass of a cyclic compound. 
     
     
         9 . The fiber fabric of  claim 2 , having a ratio of average fineness of the polyamide resin fiber and average fineness of the continuous carbon fiber (average fineness of polyamide resin fiber/average fineness of continuous carbon fiber) of 20/80 to 80/20. 
     
     
         10 . The fiber fabric of  claim 3 , wherein the polyamide resin contains 0.01 to 1% by mass of a cyclic compound. 
     
     
         11 . The fiber fabric of  claim 3 , having a ratio of average fineness of the polyamide resin fiber and average fineness of the continuous carbon fiber (average fineness of polyamide resin fiber/average fineness of continuous carbon fiber) of 20/80 to 80/20. 
     
     
         12 . The fiber fabric of  claim 4 , having a ratio of average fineness of the polyamide resin fiber and average fineness of the continuous carbon fiber (average fineness of polyamide resin fiber/average fineness of continuous carbon fiber) of 20/80 to 80/20. 
     
     
         13 . The fiber fabric of  claim 7 , wherein the polyamide resin contains 0.01 to 1% by mass of a cyclic compound. 
     
     
         14 . The fiber fabric of  claim 7 , having a ratio of average fineness of the polyamide resin fiber and average fineness of the continuous carbon fiber (average fineness of polyamide resin fiber/average fineness of continuous carbon fiber) of 20/80 to 80/20. 
     
     
         15 . The fiber fabric of  claim 8 , having a ratio of average fineness of the polyamide resin fiber and average fineness of the continuous carbon fiber (average fineness of polyamide resin fiber/average fineness of continuous carbon fiber) of 20/80 to 80/20. 
     
     
         16 . The fiber fabric of  claim 13 , having a ratio of average fineness of the polyamide resin fiber and average fineness of the continuous carbon fiber (average fineness of polyamide resin fiber/average fineness of continuous carbon fiber) of 20/80 to 80/20. 
     
     
         17 . A molded article obtainable by molding a fiber fabric described in  claim 1 . 
     
     
         18 . A molded article obtainable by molding a fiber fabric described in  claim 2 . 
     
     
         19 . A molded article obtainable by molding a fiber fabric described in  claim 3 . 
     
     
         20 . A molded article obtainable by molding a fiber fabric described in  claim 4 . 
     
     
         21 . A molded article obtainable by molding a fiber fabric described in  claim 5 .