Abstract: Disclosed therein are wood plastic composites and a manufacturing method thereof, which can provide a high discoloration resistance by removing lignin from wood flour which is a main material of the wood plastic composites. The method of manufacturing wood plastic composites includes the steps of: removing lignin contained in wood chips through a cooking process of high temperature and pressure; crushing the wood chip from which lignin was removed in order to produce wood flour; putting and mixing polymer resins and additives into the wood flour so as to manufacture mixture of a gel phase; and extrusion-molding, injection-molding or compression-molding the mixture to manufacture wood plastic composites. The wood plastic composites and the manufacturing method thereof can prevent decoloration and after-yellowing even though the wood plastic composites are exposed to UV or moisture for a long time to thereby enhance long-term weather resistance.

Abstract: The present invention relates to a block deck used as the interior or exterior material of a building. More specifically, disclosed is a block deck using concrete, wherein a hollow portion is formed inside and filled with concrete so as to exhibit superior strength. The present invention provides a block deck including: a frame member formed with a hollow portion inside; and filler formed of a concrete material so as to be filled in the hollow portion. At this time, the concrete may be foamed according to desired strength with a foaming rate in the range of 0-50%. The frame member may be formed of natural wood, synthetic wood and synthetic resin materials. And, the frame member may be formed integrally or divisionally into two or more so as to be coupled, wherein coupling is carried out by being fitted in a sliding manner.

Abstract: Disclosed is a tacker construction panel made of wood plastic composite (WPC), and more particularly, to a tacker construction panel, which includes 50 wt % or more of wooden flour, has a thickness of 2 to 10 mm and shows a contractility of 0.1 to 3% along a longitudinal direction after lapse of 24 hours at a temperature of 60° C. and a humidity of 90% RH.

Abstract: The present invention relates to a synthetic wood having an elastic layer, wherein a synthetic wood layer and the elastic layer formed at one side of the synthetic wood layer are formed integrally. According to the present invention, since the elastic layer formed of a rubber material is provided on the upper surface of the synthetic wood, it is possible to increase the contact surface area upon walking and thus improve the anti-slip performance.

Abstract: The present invention relates to a microcellular foam of a thermoplastic resin and a method for preparing the same, and more particularly to a microcellular foam comprising a skin layer having a porosity of below 5% and a core layer having a porosity of at least 5%, wherein the thickness of the skin layer accounts for 5 to 50% of the entire foam, and a method for preparing the same. The microcellular foam of the present invention is advantageous in that it has a thicker skin layer and smaller and uniform micropores in the core layer, compared with conventional microcellular foams, while having mechanical properties comparable to those of conventional non-foamed sheets.

Abstract: The present invention relates to a block deck used as the interior or exterior material of a building. More specifically, disclosed is a block deck using concrete, wherein a hollow portion is formed inside and filled with concrete so as to exhibit superior strength. The present invention provides a block deck including: a frame member formed with a hollow portion inside; and filler formed of a concrete material so as to be filled in the hollow portion. At this time, the concrete may be foamed according to desired strength with a foaming rate in the range of 0-50%. The frame member may be formed of natural wood, synthetic wood and synthetic resin materials. And, the frame member may be formed integrally or divisionally into two or more so as to be coupled, wherein coupling is carried out by being fitted in a sliding manner.

Abstract: Disclosed is a tacker construction panel made of wood plastic composite (WPC), and more particularly, to a tacker construction panel, which includes 50 wt % or more of wooden flour, has a thickness of 2 to 10 mm and shows a contractility of 0.1 to 3% along a longitudinal direction after lapse of 24 hours at a temperature of 60° C. and a humidity of 90% RH.

Abstract: The present invention relates to a microcellular foam of a thermoplastic resin and a method for preparing the same, and more particularly to a microcellular foam comprising a skin layer having a porosity of below 5% and a core layer having a porosity of at least 5%, wherein the thickness of the skin layer accounts for 5 to 50% of the entire foam, and a method for preparing the same. The microcellular foam of the present invention is advantageous in that it has a thicker skin layer and smaller and uniform micropores in the core layer, compared with conventional microcellular foams, while having mechanical properties comparable to those of conventional non-foamed sheets.

Abstract: The present invention relates to a microcellular foam of a thermoplastic resin and a method for preparing the same, and more particularly to a microcellular foam comprising a skin layer having a porosity of below 5% and a core layer having a porosity of at least 5%, wherein the thickness of the skin layer accounts for 5 to 50% of the entire foam, and a method for preparing the same. The microcellular foam of the present invention is advantageous in that it has a thicker skin layer and smaller and uniform micropores in the core layer, compared with conventional microcellular foams, while having mechanical properties comparable to those of conventional non-foamed sheets.