Resin composition and resin molded article
A resin composition includes a resin (A), a resin (B), and resin particles (C), and has a continuous phase containing the resin (A) and dispersed phases containing the resin (B), in which when a cross section of the resin composition along an extrusion direction in producing the resin composition is observed, an area circle equivalent diameter d 80 , which is an area circle equivalent diameter corresponding to 80% from a small diameter side in a number cumulative distribution of area circle equivalent diameters of the dispersed phases, is 600 nm or less.
1. A resin composition comprising a resin (A), a resin (B), and resin particles (C), and having a continuous phase containing the resin (A) and dispersed phases containing the resin (B),
wherein when a cross section of the resin composition along an extrusion direction in producing the resin composition is observed, a proportion of the dispersed phases covering the resin particles (C) with respect to the dispersed phases having an area circle equivalent diameter of 100 nm or more is 70% by number or more;
wherein a content ratio (B)/(A) of the resin (B) to the resin (A) is 0.05 or more and less than 0.5;
wherein the resin (A) contains a mixture of a cellulose acylate and a plasticizer (D), and
wherein the plasticizer (D) contains at least one selected from the group consisting of a cardanol compound, a dicarboxylic acid diester, a citrate, a polyether compound having at least one unsaturated bond in a molecule, a polyether ester compound, a glycol benzoate ester, an ester compound represented by the following General Formula (ES1) and an epoxidized fatty acid ester,
wherein, in the General Formula (ES1), R E1 represents an aliphatic hydrocarbon group having 7 to 28 carbon atoms, and R E2 represents an aliphatic hydrocarbon group having 1 to 8 carbon atoms.
2. The resin composition according to claim 1 ,
wherein a content ratio (B)/(C) of the resin (B) to the resin particles (C) is from 0.5 to 4.
3. A resin molded article comprising the resin composition according to claim 1 .
4. The resin composition according to claim 1 ,
wherein the resin (B) contains at least one selected from the group consisting of a polyester, an acrylic resin, a copolymer containing 50% by mass or more of structural units derived from an alkyl (meth)acrylate, a polystyrene, a copolymer containing 50% by mass or more of structural units derived from a styrene, and a styrene acrylonitrile copolymer.
5. The resin composition according to claim 1 ,
wherein an average particle diameter of the resin particles (C) is 10 nm to 400 nm.
6. The resin composition according to claim 1 ,
wherein the resin particles (C) contain resin particles each having a core layer and a shell layer that contains a polymer and covers the core layer.
7. The resin composition according to claim 6 ,
wherein and the polymer that covers the core layer contains resin particles being at least one selected from the group consisting of a polyester, an alkyl (meth)acrylate polymer, a copolymer containing 50% by mass or more of structural units derived from an alkyl (meth)acrylate, a polystyrene, a copolymer containing 50% by mass or more of structural units derived from a styrene, and a styrene acrylonitrile copolymer.