Artificial marble chips, artificial marble containing same, and production method therefor
An artificial marble chip of the present invention comprises curable resin, metal fiber and/or inorganic fiber, and inorganic filler. The metal fiber and/or inorganic fiber preferably have an average length of about 1 to about 6 mm and an average particle diameter of about 10 to about 15 μm. An artificial marble according to the present invention is produced by using the artificial marble chip, curable resin matrix, and inorganic filler as main components. The curable resin is preferably selected from acrylic resin, unsaturated polyester resin, epoxy resin, or a copolymer thereof. The artificial marble according to the present invention is produced by the steps of: producing an artificial marble composition by mixing the artificial marble chip, the inorganic filler, and other additives into the curable resin matrix; and curing the composition at about 25 to about 180° C. The invention can also include the step of defoaming the composition prior to curing.
1. An artificial marble chip comprising curable resin, aluminum fiber and inorganic filler.
2. The artificial marble chip according to claim 1 , wherein the aluminum fiber has an average length of about 1 to about 6 mm, and an average particle diameter of about 10 to about 15 μm.
3. The artificial marble chip according to claim 1 , wherein the artificial marble chip has a hardness of about 40 to about 45 measured by barcol hardness tester (GYZJ 934-1, Barber Colman Company).
4. An artificial marble comprising curable resin matrix; artificial marble chip comprising curable resin, aluminum fiber, and inorganic filler; and inorganic filler.
5. The artificial marble according to claim 4 , wherein the artificial marble comprises about 100 parts by weight of the curable resin matrix, about 40 to about 100 parts by weight of the artificial marble chip, and about 140 to about 200 parts by weight of the inorganic filler.
6. The artificial marble according to claim 4 , wherein the artificial marble further comprises one or more additives selected from the group consisting of inorganic fillers, cross-linking agents, polymerization initiators, coupling agents, curing promoters, pigments, flame retardants, antistatic agents, antibacterial agents, antifoaming agents, dispersing agents, molecular weight control agents, and ultraviolet ray absorbers.
7. The artificial marble according to claim 4 , wherein the aluminum fiber has an average length of about 1 to about 6 mm, and an average particle diameter of about 10 to about 15 μm.
8. The artificial marble according to claim 4 , wherein the curable resin is acrylic resin, unsaturated polyester resin, epoxy resin, or a copolymer thereof.
9. A production method of artificial marble comprising steps of:
preparing an artificial marble composition by mixing artificial marble chip according to claim 1 , inorganic filler, and additives into curable resin matrix; and
curing the composition at about 25 to about 180° C.
10. The production method of artificial marble according to claim 9 , wherein the production method further comprises defoaming step before curing the composition.