Multilayer floor decorative material
The present invention relates to a multilayer floor decorative material comprising a foam layer, wherein the foam layer comprises a polyvinyl chloride resin, a plasticizer, a filler, a heat stabilizer and a foam stabilizer, the foam layer is formed by a mechanical foaming method, the heat stabilizer comprises barium stearate and zinc stearate, and the foam stabilizer is included in an amount of 1 to 10 parts by weight on the basis of 35 to 55 parts by weight of the polyvinyl chloride resin.
1 . A multilayer floor decorative material comprising a foam layer, wherein
the foam layer comprises a polyvinyl chloride resin, a plasticizer, a filler, a heat-resistant stabilizer, and a foam stabilizer,
the foam layer is formed by a mechanical foaming method,
the heat-resistant stabilizer comprises barium stearate and zinc stearate at a weight ratio of 1:1 to 3,
the foam stabilizer is included in an amount of 1 to 10 parts by weight based on 35 to 55 parts by weight of the polyvinyl chloride resin,
the foam layer comprises 35 to 55 parts by weight of the polyvinyl chloride resin, 30 to 50 parts by weight of the plasticizer, 1 to 20 parts by weight of the filler, and 0.5 to 7 parts by weight of the heat-resistant stabilizer,
the foam layer comprises a regulated phthalate in an amount of less than 0.1 wt % with respect to a total weight of the foam layer, and
a foaming magnitude of the foam layer is from 150 to 350%.
2 . The multilayer floor decorative material of claim 1 , wherein the polyvinyl chloride resin has a polymerization degree of 1,000 to 2,000, and a weight average molecular weight (Mw) of 130,000 to 250,000 g/mol.
3 . The multilayer floor decorative material of claim 1 , wherein the plasticizer comprises one or more selected from the group consisting of dioctyl terephthalate (DOTP), 1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH) and dipropylheptylphthalate (DPHP).
4 . The multilayer floor decorative material of claim 1 , wherein the filler comprises at least one selected from the group consisting of calcium carbonate, titanium dioxide, alumina, aluminum oxide, and silica.
5 . The multilayer floor decorative material of claim 1 , wherein an average diameter of the filler is from 1 to 50 μm.
6 . A multilayer floor decorative material comprising a foam layer,
wherein the foam layer comprises a polyvinyl chloride resin, a plasticizer, a filler, a heat-resistant stabilizer, and a foam stabilizer,
the foam layer is formed by a mechanical foaming method,
the heat-resistant stabilizer comprises barium stearate and zinc stearate at a weight ratio of 1:1 to 3,
the foam stabilizer is included in an amount of 1 to 10 parts by weight based on 35 to 55 parts by weight of the polyvinyl chloride resin,
the foam layer comprises 35 to 55 parts by weight of the polyvinyl chloride resin, 30 to 50 parts by weight of the plasticizer, 1 to 20 parts by weight of the filler, and 0.5 to 7 parts by weight of the heat-resistant stabilizer,
the foam layer comprises a regulated phthalate in an amount of less than 0.1 wt % with respect to a total weight of the foam layer, and
an average thickness of the foam layer is from 0.5 to 2.0 mm.
7 . The multilayer floor decorative material of claim 1 , wherein the foam layer is not foamed by a chemical foaming method.
8 . The multilayer floor decorative material of claim 1 , wherein the regulated phthalate comprises at least one selected from the group consisting of di-2-ethylhexyl phthalate (DEHP), di-isononyl phthalate (DINP), butyl benzyl phthalate (BBP), di-isodecyl phthalate (DIDP), di-n-octyl phthalate (DNOP), and di-butyl phthalate (DBP).
9 . The multilayer floor decorative material of claim 1 , further comprising a balance layer, a first middle layer, a glass fiber layer, a second middle layer, a printing layer, a transparent layer, and a surface treatment layer.
10 . The multilayer floor decorative material of claim 1 , wherein an average thickness of the foam layer is from 0.5 to 2.0 mm.
11 . The multilayer floor decorative material of claim 6 , wherein the polyvinyl chloride resin has a polymerization degree of 1,000 to 2,000, and a weight average molecular weight (Mw) of 130,000 to 250,000 g/mol.
12 . The multilayer floor decorative material of claim 6 , wherein the plasticizer comprises one or more selected from the group consisting of dioctyl terephthalate (DOTP), 1,2-cyclohexane dicarboxylic acid diisononyl ester (DINCH) and dipropylheptylphthalate (DPHP).
13 . The multilayer floor decorative material of claim 6 , wherein the filler comprises at least one selected from the group consisting of calcium carbonate, titanium dioxide, alumina, aluminum oxide, and silica.
14 . The multilayer floor decorative material of claim 6 , wherein an average diameter of the filler is from 1 to 50 μm.
15 . The multilayer floor decorative material of claim 6 , wherein a foaming magnitude of the foam layer is from 150 to 350%.
16 . The multilayer floor decorative material of claim 6 , wherein the foam layer is not foamed by a chemical foaming method.
17 . The multilayer floor decorative material of claim 6 , wherein the regulated phthalate comprises at least one selected from the group consisting of di-2-ethylhexyl phthalate (DEHP), di-isononyl phthalate (DINP), butyl benzyl phthalate (BBP), di-isodecyl phthalate (DIDP), di-n-octyl phthalate (DNOP), and di-butyl phthalate (DBP).
18 . The multilayer floor decorative material of claim 6 , further comprising a balance layer, a first middle layer, a glass fiber layer, a second middle layer, a printing layer, a transparent layer, and a surface treatment layer.
19 . A multilayer floor decorative material comprising a foam layer, a balance layer, a first middle layer, a glass fiber layer, a second middle layer, a printing layer, a transparent layer, a balance layer, a first middle layer, a glass fiber layer, a second middle layer, a printing layer, a transparent layer, and a surface treatment layer, wherein
the foam layer comprises a polyvinyl chloride resin, a plasticizer, a filler, a heat-resistant stabilizer, and a foam stabilizer,
the foam layer is formed by a mechanical foaming method,
the heat-resistant stabilizer comprises barium stearate and zinc stearate at a weight ratio of 1:1 to 3,
the foam stabilizer is included in an amount of 1 to 10 parts by weight based on 35 to 55 parts by weight of the polyvinyl chloride resin,
the foam layer comprises 35 to 55 parts by weight of the polyvinyl chloride resin, 30 to 50 parts by weight of the plasticizer, 1 to 20 parts by weight of the filler, and 0.5 to 7 parts by weight of the heat-resistant stabilizer, and
the foam layer comprises a regulated phthalate in an amount of less than 0.1 wt % with respect to a total weight of the foam layer.