11 results about "Wood-plastic composite" patented technology

This invention proposes a flat corner protector assembly and packaging process for WPC wall panels, relating to the field of decorative panel packaging. The flat corner protector assembly is a straight strip structure with a thickness of 3mm and a height of 20mm. Its length matches the side length of the WPC wall panel, and it is made of wood-plastic composite material. The height is equal to the sum of the thicknesses of two WPC wall panels and a 2mm thick pearl cotton cushioning layer. The process includes: stacking two 9mm thick WPC wall panels face-to-face, with a 2mm thick pearl cotton cushioning layer between them to form an assembly with a total height of 20mm; attaching the two flat corner protector assemblies to the left and right sides of the assembly, with their height flush with the total height of the assembly; wrapping the entire assembly with EB corrugated paper and reinforcing it with stretch film to form a single package unit; and neatly stacking multiple single package units on a pallet. This application can accurately adapt to a 20mm assembly height, possesses moisture-proof and mildew-proof properties, and has sufficient rigidity, significantly reducing storage and transportation losses.

This wood composite material comprises: an inner layer that includes wood and resin; an obverse layer provided on the obverse surface of the inner layer, the obverse layer including wood and resin; and a reverse layer provided on the reverse surface of the inner layer, the reverse layer including wood and resin. The total of the filling rate of the obverse layer and the filling rate of the reverse layer is no greater than half the filling rate of the wood overall.

This invention discloses a wood-plastic composite material and its preparation method. The preparation method includes: (1) heating and stirring DES liquid, plant fiber material and water, then adding water to stop the reaction and depositing lignin, then washing and drying to obtain a preliminary DES-treated plant fiber material; finally, heating and pulverizing the preliminary DES-treated plant fiber material to obtain a DES-treated plant fiber material; (2) modifying the DES-treated plant fiber material with a coupling agent to obtain a modified plant fiber material; (3) mixing the modified plant fiber material, polypropylene and maleic anhydride-grafted polypropylene evenly, then mixing and hot pressing to obtain a wood-plastic composite material. The method of this invention can significantly improve the interfacial compatibility between plant fibers and polymer matrix, and provide a superior platform for further coupling agent modification, ultimately synergistically improving the comprehensive mechanical properties and water resistance stability of the wood-plastic composite material.

The present application relates to the field of modular product manufacturing, in particular to a wood-plastic composite material plug-in module and product thereof, comprising a load-bearing block, a first extension block, a second extension block and an intermediate splicing block, the load-bearing block has a horizontal plane for placing on a load-bearing surface, the load-bearing block and the first extension block are provided with a concave slot, the intermediate splicing block and the second extension block are provided with a protruding part matched with the concave slot, a first hollow triangle is formed between each load-bearing block and the adjacent two load-bearing blocks, and a second hollow square is formed between the two load-bearing blocks and the two intermediate splicing blocks. The present application can reduce the stress concentration of the wood-plastic composite material parts at the matching plug-in part, reduce the possibility of the matching plug-in part being broken due to excessive load, make the product have better stability, and be conducive to ensuring product quality and improving the production efficiency of the composite material parts.

This invention relates to the field of materials processing technology, and discloses a processing aid for wood-plastic composites and its preparation method, to solve the problems of lubrication and extrusion in the processing of high wood flour content. The aforementioned processing aid, by weight, comprises 5-95 parts modified polysiloxane, 5-95 parts hydrocarbon wax, 5-95 parts fatty acid, 5-95 parts carboxylic acid ester, 5-95 parts fatty amide, 5-95 parts fatty alcohol, 5-95 parts metal soap, and 1-5 parts other additives. The processing aid of this application is applied to the processing and extrusion of wood-plastic composites, utilizing the complementary advantages of the lubrication effect of small molecule lubricants and the excellent properties of modified polysiloxane to prepare a composite lubricant. Simultaneously, the structural advantage of the polar groups in the polysiloxane has a coating effect on wood flour particles that have adsorbed other polar small molecules, while the long-chain alkyl portion achieves good compatibility with the polyolefin resin through entanglement, preventing the precipitation of other polar small molecules. The composite lubricant offers high cost-effectiveness and excellent processing lubrication and defect-free product extrusion appearance.

The present application relates to a kind of environmentally friendly wood-plastic composite board forming device, including wood-plastic composite board, transmission mechanism, first support mechanism and second support mechanism being symmetrically arranged along the center cross section of transmission mechanism and being arranged at one end of transmission mechanism, and transfer mechanism being installed above transmission mechanism, first support mechanism and second support machine;Reinforcing rib installation station, lower metal buckle installation station and base plate waterproof gluing station are sequentially arranged along the circumferential direction of the first support mechanism;Cover plate adhesive application station, upper metal buckle installation station and cover plate waterproof gluing station are sequentially arranged along the circumferential direction of the second support mechanism;Thus, the present application solves the technical problem that the strength of the product of the existing wood-plastic composite board is low due to the limitation of material, and when temperature is higher, it is affected by temperature to cause expansion or bending.

Screw, its use and a method for fastening wood plastic composite workpieces For fastening panels (18) made of wood-plastic composites onto an underlying wooden support structure, a screw (1) is provided with a drill point (3) having an eccentric tip (7).

The present application relates to wood plastic material forming technical field, especially to a kind of biomass polymer material wood plastic composite profile forming equipment and method, comprising: discharge mechanism, the discharge mechanism is used to be shaped to wood plastic material output;Cooling mechanism, the cooling mechanism is installed in the discharge port position of discharge mechanism and is used to cool the wood plastic of preliminary forming, cooling mechanism includes pressure groove subassembly and cooling subassembly, pressure groove subassembly is arranged in wood plastic material side and includes first telescopic cylinder and pressure bar;Cooling subassembly includes support rod and conveyor belt;Towing mechanism, towing mechanism is installed on cooling mechanism and is used to cut and move wood plastic material, towing mechanism includes the cutting subassembly installed on the upper and lower sides of support rod, the moving subassembly installed on the left and right sides of support rod and the separation subassembly installed below support rod;Assembly mechanism, the assembly mechanism is installed in the vicinity of towing mechanism and is used to be assembled to the wood plastic plate of forming.

This invention relates to a lightweight, high-performance wood-plastic composite material and its preparation method, belonging to the field of wood-plastic composite material manufacturing. The invention addresses the problems of poor interfacial compatibility, low melt strength, and difficulty in controlling foaming and molding in traditional wood-plastic composite materials, which also fail to simultaneously achieve lightweight, suitable strength, and good toughness. The lightweight, high-performance wood-plastic composite material is a sandwich structure formed by segmented hot pressing in a one-step process. The sandwich structure consists of dense, high-strength surface layers on both sides and a foamed, buffered core layer in the middle. The method includes: 1. Core layer particle preparation; 2. Surface layer particle preparation; 3. Segmented hot pressing. This invention is used for lightweight, high-performance wood-plastic composite materials and their preparation.

The invention relates to a coating material for panel surfaces, in particular wood, wood-based material, plastic, or wood-plastic composite material, consisting of a single resin-impregnated cellulose layer provided on one side with a decoration, which is covered by a transparent top layer made of a mixture of acrylic lacquer and polyurethane, and is characterized in that the impregnation with synthetic resin amounts to 50 to 75% based on the weight of the cellulose layer.