Cell packing material and method of manufacturing the same
A cell packing material and a method of manufacturing the same are provided. More particularly, a cell packing material including a sealant layer, a gas barrier layer formed on the sealant layer, and an outer layer formed on the gas barrier layer, the outer layer including a polyrotaxane-based compound, and a method of manufacturing the same are provided. The cell packing material includes the outer layer having excellent elongation, scratch resistance, and chemical resistance, and thus can be easily molded into a pouch, and exhibit improved durability, and the like.
1. A cell packing material comprising:
a sealant layer;
a gas barrier layer formed on the sealant layer; and
an outer layer formed on the gas barrier layer,
wherein the outer layer comprises a polyrotaxane-based compound at 5 to 88 parts by weight, a polycaprolactone-modified acrylate at 10 to 50 parts by weight, a silicone-modified acrylate at 5 to 30 parts by weight, a urethane acrylate at 10 to 50 parts by weight, and a photoinitiator at 0.01 to 10 parts by weight.
2. The cell packing material of claim 1 , wherein the polyrotaxane-based compound comprises a cyclic compound, a linear molecule passing through the cyclic compound, and a blocking group disposed at an end of the linear molecule to prevent secession of the cyclic compound.
3. The cell packing material of claim 1 , wherein the polyrotaxane-based compound has a caprolactone-based compound bound thereto.
4. The cell packing material of claim 1 , wherein the polyrotaxane-based compound has a (meth)acrylic compound introduced thereinto.
5. The cell packing material of claim 2 , wherein the polyrotaxane-based compound comprises the cyclic compound having a caprolactone-based compound bound thereto, and the caprolactone-based compound having a (meth)acrylic compound introduced thereinto.
6. The cell packing material of claim 1 , wherein the outer layer has a glass transition temperature (T g ) of −80 to 100° C.
7. The cell packing material of claim 1 , wherein the cell packing material further comprises an intermediate layer formed between the sealant layer and the gas barrier layer.
8. The cell packing material of claim 7 , wherein the intermediate layer comprises an acid-modified polypropylene-based compound.
9. The cell packing material of claim 1 , wherein the cell packing material further comprises an intermediate layer formed between the gas barrier layer and the outer layer.
10. The cell packing material of claim 9 , wherein the intermediate layer comprises a nylon resin.
11. The cell packing material of claim 1 , wherein the cell packing material further comprises:
a first intermediate layer formed between the sealant layer and the gas barrier layer; and
a second intermediate layer formed between the gas barrier layer and the outer layer.
12. The cell packing material of claim 11 , wherein the first intermediate layer comprises an acid-modified polypropylene-based compound, and
the second intermediate layer comprises a nylon resin.
13. A method of manufacturing a cell packing material, comprising:
preparing a laminate comprising a sealant layer and a gas barrier layer formed on the sealant layer; and
forming an outer layer on the gas barrier layer,
wherein the outer layer comprises a polyrotaxane-based compound at 5 to 88 parts by weight, a polycaprolactone-modified acrylate at 10 to 50 parts by weight, a silicone-modified acrylate at 5 to 30 parts by weight, a urethane acrylate at 10 to 50 parts by weight, and a photoinitiator at 0.01 to 10 parts by weight.