Antistatic wood-plastic composite material and preparation method thereof

Abstract

The invention discloses an antistatic wood-plastic composite material and a preparation method thereof. The antistatic wood-plastic composite material is prepared from the following raw materials in parts by weight: 30 to 60 parts of PVC resin powder, 10 to 30 parts of calcium filling agent, 15 to 25 parts of plant fiber powder, 1 to 5 parts of plasticizing adjusting agent, 1 to 3 parts of processing additives, 2 to 6 parts of environment-friendly stabilizer, 1 to 3 parts of lubricating agent, 1 to 5 parts of toughening agent, and 10 to 20 parts of antistatic agent. The preparation method comprises the following steps: drying at a high temperature, enabling the water content to be less than 1 percent, stirring and mixing at high speed at the temperature of 110 to 130 DEG C, adding the treated mixed powder into an extruder, extruding at the high temperature, calendaring molding, drawing and cutting and molding, wherein graphene powder of a layered structure is uniformly distributed in PVC and forms a netted structure with the PVC, so that the wood-plastic composite material prepared by the invention is excellent in various mechanical performance and good in antistatic performance, wherein the antistatic performance (specific resistance) can reach the order magnitude of 106 ohm / sq; and moreover, the whole production process is simple and stable and suitable for industrialized production.

Description

technical field [0001] The invention relates to the technical field of wood-plastic composite, in particular to an antistatic wood-plastic composite material and a preparation method thereof. Background technique [0002] Wood-plastic composite material is a new type of environmentally friendly composite material made of plant fiber powder (wood powder, straw, forestry three residues, etc.) and thermoplastics as the main raw materials through high-tech processes such as physics, chemistry and biological engineering. It has the advantages of zero formaldehyde, insect resistance, corrosion resistance, chemical reaction resistance, and low water absorption. It has the advantages of both wood and plastic, making it widely used in transportation, interior decoration, construction, furniture products, gardening and other fields. . [0003] The high insulation of most plastics and polymer materials brings electrostatic hazards to plastics. Wood-plastic composite materials also ha...

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Problems solved by technology

[0004] CN201610533566.X discloses an antistatic straw wood-plastic composite material and a preparation method thereof. The antistatic agent used in it is silane-modified conductive carbon black, and 80 parts of conductive carbon black, 3 parts of silane coupling agent Put 200mL of absolute ethanol into a three-necked flask, stir at 60°C for 1.5h, then filter with suction, then place the filter cake in an oven, dry at 105°C, crush and grind to obtain silane-modified conductive carbon Black, the preparation process of its antistatic agent is relatively complicated, which is not conducive to industrial production

[0005] CN201410723764.3 discloses a conductive / antistatic wood-plastic composite material and its preparation method. The antistatic agent used is carbon nanotubes with a diameter of 20-100nm and a length of 10-50μm. The antistatic agent used is not Easy to disperse resulting in poor antistatic properties

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