Composite floor and manufacturing method thereof
A composite flooring and a manufacturing method thereof are disclosed. The composite floor includes, at least, a bamboo-plate surface layer and an organic layer.
1. A composite floor, characterized at least comprising a bamboo-plate surface layer and an organic layer;
the organic layer is a bamboo plastic layer, and the bamboo plastic layer comprises the following components by weight:
100 parts of polyvinyl chloride,
30 to 50 parts of silane coupling agent modified bamboo powder,
30 to 50 parts of calcium carbonate,
5 to 7 parts of sterilizer,
10 to 16 parts of foam regulator,
0.8 to 1.6 parts of foaming agent,
2 to 4 parts chlorinated polyethylene,
3 to 5 parts of lubricant,
1 to 3 parts of plasticizer, and
0.2 to 0.6 parts of anti-aging agent.
2. The composite floor according to claim 1 , characterized in that a soft wood or fireproof plate bottom layer is arranged below the organic layer; the soft wood layer is a sawdust laminated layer or a soft wood EVA foaming material layer; the bamboo-plate surface layer is 1 to 3 mm thick and has a moisture rating of 5 to 15%; and the organic layer is 4 to 10 mm thick.
3. The composite floor according to claim 1 , characterized in that the sterilizer is calcium stearate; the foaming agent is azodicarbonamide; the plasticizer is dimethyl phthalate, diethyl phthalate or di-n-octyl phthalate.
4. The composite floor according to claim 3 , characterized in that an adhesive layer is arranged between the bamboo-plate surface layer and the organic layer; and the surface of the bamboo-plate surface layer is provided with a bamboo plastic layer having a seal coat.
5. The composite floor according to claim 4 , characterized in that the adhesive layer is a polyurethane glue layer.
6. The composite floor according to claim 5 , characterized in that the glue consists of the following raw materials by weight:
70 to 95 parts of polyurethane,
25 to 35 parts of phthalic anhydride,
10 to 12 parts of triethylene glycol,
15 to 18 parts of glutaric acid,
8 to 10 parts of butanetriol,
5 to 7 parts of zinc oxide,
3 to 5 parts of magnesium oxide,
15 to 25 parts of chloroprene rubber,
2 to 3 parts of softening oil;
15 to 20 parts of dimethyl carbonate,
20 to 30parts of ethylbenzene and
1 to 3 parts of fire retardant; the fire retardant consist of the following components by weight part: 20 to 50 parts of ammonium oligomericphosphate, 10 to 25 parts of ammonium phosphate, 6 to 12 parts of ammonium pyrophosphate, 5 to 20 parts of ammonium sulfate, 5 to 10 parts of boric acid and 10 to 25 parts of water.