Molded article and molding material
AssigneeToray Industries, Inc.
InventorsNaokichi Imai, Kentaro Sano, Keisuke Inose
Life of this patent
Estimating the term…
Abstract
A molded article includes 10 to 40% by mass of reinforcing fibers (A); and 60 to 90% by mass of a matrix resin (B) mainly including a polyarylene sulfide, the molded article satisfying conditions (I) to (IV) and having a tensile strength of 240 MPa or more in a main orientation direction of the reinforcing fibers (A) in the molded article: (I) strand tensile strength of the reinforcing fibers (A) is 1.5 to 5.5 OPa; (II) number average fiber length of the reinforcing fibers (A) in the molded article is 0.4 mm or more and less than 0.6 mm; (III) tensile elongation of the matrix resin (B) is 1.5 to 10%; and (IV) interfacial shear strength between the reinforcing fibers (A) and the matrix resin (B) is 20 MPa or more.
Claims10
A molded article comprising:
- 10 to 40% by mass of reinforcing fibers (A);
- and
- 60 to 90% by mass of a matrix resin (B) mainly including a polyarylene sulfide, the molded article satisfying conditions (I) to (IV) and having a tensile strength of 240 MPa or more in a main orientation direction of the reinforcing fibers (A) in the molded article:
- (I) strand tensile strength of the reinforcing fibers (A) is 1.5 to 5.5 OPa;
- (II) number average fiber length of the reinforcing fibers (A) in the molded article is 0.4 mm or more and less than 0.6 mm;
- (III) tensile elongation of the matrix resin (B) is 1.5 to 10%;
- and
- (IV) interfacial shear strength between the reinforcing fibers (A) and the matrix resin (B) is 20 MPa or more.
A molded article comprising:
- 10 to 40% by mass of reinforcing fibers (A);
- and
- 60 to 90% by mass of a matrix resin (B) mainly including a polyarylene sulfide,
- wherein the reinforcing fibers (A) are carbon fibers surface-treated with a compound having, in one molecule, three or more functional groups of at least one type selected from the group consisting of a carboxyl group, an amino group, a hydroxyl group and an epoxy group;
- the molded article satisfying conditions (I) to (IV) and having a tensile strength of 240 MPa or more in a main orientation direction of the reinforcing fibers (A) in the molded article:
- (I) strand tensile strength of the reinforcing fibers (A) is 1.5 to 5.5 OPa;
- (II) number average fiber length of the reinforcing fibers (A) in the molded article is 0.4 to 10 mm;
- (III) tensile elongation of the matrix resin (B) is 1.5 to 10%;
- and
- (IV) interfacial shear strength between the reinforcing fibers (A) and the matrix resin (B) is 20 MPa or more.
A molded article comprising:
- 10 to 40% by mass of reinforcing fibers (A);
- and
- 60 to 90% by mass of a matrix resin (B) mainly including a polyarylene sulfide,
- wherein mass average molecular weight of the polyarylene sulfide as a main component of the matrix resin (B) is 10,000 to 40,000;
- the molded article satisfying conditions (I) to (IV) and having a tensile strength of 240 MPa or more in a main orientation direction of the reinforcing fibers (A) in the molded article:
- (I) strand tensile strength of the reinforcing fibers (A) is 1.5 to 5.5 OPa;
- (II) number average fiber length of the reinforcing fibers (A) in the molded article is 0.4 to 10 mm;
- (III) tensile elongation of the matrix resin (B) is 1.5 to 10%;
- and
- (IV) interfacial shear strength between the reinforcing fibers (A) and the matrix resin (B) is 20 Mpa or more.
Dependencies are inferred from the claim text.