Flame retardant resin composition, insulated wire using the same, cable and optical fiber cable
Provided is a flame retardant resin composition that includes a base resin, a filler blended in a ratio of 5 parts by mass or more relative to 100 parts by mass of the base resin, a silicone compound blended in a ratio of 0.5 part by mass or more relative to 100 parts by mass of the base resin, and a fatty acid-containing compound blended in a ratio of 3 parts by mass or more relative to 100 parts by mass of the base resin. The filler may have a silane coupling agent having a polar group adhered to at least a part of a surface of a silicate compound. Further provided are an insulated wire, a cable, and an optical fiber cable that includes in part the flame retardant resin composition.
1. A flame retardant resin composition, comprising:
a base resin;
a filler blended in a ratio of 5 parts by mass or more and less than 150 parts by mass relative to 100 parts by mass of the base resin;
a silicone compound blended in a ratio of 0.5 part by mass or more relative to 100 parts by mass of the base resin; and
a fatty acid-containing compound blended in a ratio of 3 parts by mass or more relative to 100 parts by mass of the base resin;
wherein the filler has a silane coupling agent having a polar group adhered to at least a part of a surface of a silicate compound, the silicate compound consisting of talc,
wherein the base resin includes a polar group-free polyolefin resin containing no polar group, the polar group-free polyolefin resin containing polypropylene and polyethylene,
wherein a content of the polypropylene in the polar group-free polyolefin resin is from 50 to 71.7 parts by mass and a content of polyethylene in the polar group-free polyolefin resin is from 28.3 to 50 parts by mass, relative to 100 parts by mass of the polar group-free polyolefin resin,
wherein the fatty acid-containing compound is a fatty acid metal salt, and
wherein a blending ratio of the silane coupling agent relative to 100 parts by mass of the silicate compound is 0.1 to 5 parts by mass in the filler.
2. The flame retardant resin composition according to claim 1 , wherein the polar group includes at least one selected from the group consisting of a nitrogen atom, a sulfur atom, and an oxygen atom.
3. The flame retardant resin composition according to claim 1 , wherein the polar group includes at least one selected from the group consisting of a nitrogen atom and a sulfur atom.
4. The flame retardant resin composition according to claim 1 , wherein the polar group includes an amino group.
5. The flame retardant resin composition according to claim 1 , wherein the polar group includes a mercapto group.
6. The flame retardant resin composition according to claim 1 , wherein the base resin includes a polar group-containing resin containing a polar group.
7. The flame retardant resin composition according to claim 6 , wherein the polar group-containing resin is composed of a polar group-containing polyolefin resin containing a polar group.
8. An insulated wire, comprising:
a conductor; and
an insulating layer covering the conductor,
wherein the insulating layer is composed of the flame retardant resin composition according to claim 1 .
9. A cable, comprising:
an insulated wire including a conductor and an insulating layer covering the conductor; and
a sheath covering the insulated wire,
wherein at least one of the insulating layer and the sheath is composed of the flame retardant resin composition according to claim 1 .
10. An optical fiber cable, comprising:
an optical fiber; and
a covering portion covering the optical fiber,
wherein at least a part of the covering portion is composed of the flame retardant resin composition according to claim 1 .