Resin composition and resin molded article
View Patent ↗A resin composition includes a polylactic acid, a solid flame retardant that has at least one functional group selected from the group consisting of a phosphate group, a sulfate group, and a sulfite group in a structure, a bifunctional compound that has a carbodiimide group, and a crystal nucleating agent.
1. A resin composition consisting of:
a polylactic acid in the range from 30% by weight to 80% by weight with respect to the total content of the resin composition;
a solid flame retardant selected from the group consisting of an ammonium polyphosphate and a melamine sulfate in the range from 10% by weight to 40% by weight with respect to the total content of the resin composition;
a bifunctional compound that has a carbodiimide group in the range from 0.1% by weight to 5% by weight with respect to the total content of the resin composition;
a crystal nucleating agent in the range from 0.1% by weight to 20% by weight with respect to the total content of the resin composition;
a rubber and/or thermoplastic elastomer in the range from 1% by weight to 20% by weight with respect to the total content of the resin composition;
a stabilizer selected from the group consisting of metal oxides, metal carbonates, zeolites, and hydrotalcites; and
optionally any of an antioxidant, an ultraviolet absorber, a drip inhibitor, a release agent, a weathering agent, a light stabilizer, and a colorant.
2. The resin composition according to claim 1 , wherein the solid flame retardant is the ammonium polyphosphate.
3. The resin composition according to claim 1 , wherein the bifunctional compound is selected from the group consisting of N,N′-diisopropyl carbodiimide, N,N′-dicyclohexyl carbodiimide, and N,N′-di-2,6-diisopropylphenyl carbodiimide.
4. The resin composition according to claim 1 , wherein the crystal nucleating agent is selected from the group consisting of talc, organic metal carboxylates and carboxylic amides.
5. A resin molded article formed by molding the resin composition according to claim 1 .
6. A resin molded article formed by molding the resin composition according to claim 2 .
7. A resin composition consisting of:
a polylactic acid in the range from 30% by weight to 80% by weight with respect to the total content of the resin composition;
a solid flame retardant selected from the group consisting of ammonium polyphosphates and solid flame retardants having sulfate or sulfite groups in the range from 10% by weight to 40% by weight with respect to the total content of the resin composition;
a bifunctional compound that has a carbodiimide group in the range from 0.1% by weight to 5% by weight with respect to the total content of the resin composition;
a crystal nucleating agent in the range from 0.1% by weight to 20% by weight with respect to the total content of the resin composition;
a rubber and/or thermoplastic elastomer in the range from 1% by weight to 20% by weight with respect to the total content of the resin composition;
a stabilizer selected from the group consisting of metal oxides, metal carbonates, zeolites, and hydrotalcites; and
optionally any of an antioxidant, an ultraviolet absorber, a drip inhibitor, a release agent, a weathering agent, a light stabilizer, and a colorant.
8. The resin composition according to claim 1 , wherein the crystal nucleating agent is selected from the group consisting of organic metal carboxylates and carboxylic amides.
9. The resin composition according to claim 7 , wherein the crystal nucleating agent is selected from the group consisting of organic metal carboxylates and carboxylic amides.
10. The resin composition according to claim 1 , wherein the drip inhibitor consists of polytetrafluoroethylene.
11. The resin composition according to claim 7 , wherein the drip inhibitor consists of polytetrafluoroethylene.