A method for manufacturing recycled wood-plastic composite structural profiles

A composite structure and manufacturing method technology, which is applied in the manufacturing field of recycled wood-plastic composite structural profiles, can solve the problems of the decline of physical and mechanical properties of finished products, good wood fibers are easily carbonized, and the heat resistance of wood fibers is poor. Low cost, reduced viscosity and energy consumption, improved overall quality

Inactive Publication Date: 2011-11-30
广东贤林家居用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The heat resistance of wood fiber is poor. In the process of preparing wood-plastic composite materials, it often needs to be carried out at a high temperature above 100 degrees. If the heat resistance problem of wood fiber is not well solved, wood fiber is easy to It is carbonized, so that the wood fiber cannot perform its functions in the polymer, so the physical and mechanical properties of the final product are greatly reduced, which affects its wide application
[0005] For example, the application number is: 90102639.5, and the Chinese patent titled "Wood-Plastic Composition" has not really solved the problem that wood fibers are easily carbonized, so its products have not been practically applied.
Another example is a Chinese patent called "Wood Powder Filled PVC Products" (Application No. 00219935.2) and a Chinese patent on "Wooden Plastics" (Application No. 94113968.9), all due to failure to solve the heat resistance of wood powder problem, but failed to be promoted

Method used

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  • A method for manufacturing recycled wood-plastic composite structural profiles
  • A method for manufacturing recycled wood-plastic composite structural profiles

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Experimental program
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Effect test

Embodiment 1

[0043] A method for manufacturing recycled wood-plastic composite structural profiles according to the present invention, the formulated mixture formula is as follows:

[0044] Wood chips: 30%

[0045] Polyethylene resin: 40%

[0046] Calcium Carbonate: 10%

[0047] Polyol Parabens: 5%

[0048] Stearic acid: 3%

[0049] Epoxy methyl oleate: 3%

[0050] Lead dibasic stearate: 2.5%

[0051] Polymer paraffin: 1%

[0052] Silane coupling agent: 4%

[0053] Industrial white oil: 1.5%

[0054]Put the mixture prepared according to the above ratio into a grinder to grind the mixture. The particle size of the powder after grinding is 20 meshes. Use a mixer to fully mix the above powder, and then put the powder into the feeding device of the extrusion molding machine; After the mold is installed on the molding machine, the mold and the material pipe are heated. The heating temperature is controlled at 160°C-180°C, and then the discharge valve of the feeding device is opened. The...

Embodiment 2

[0056] A method for manufacturing recycled wood-plastic composite structural profiles according to the present invention, the formulated mixture formula is as follows:

[0057] Crop orange stalks: 40%

[0058] Polyethylene: 20%

[0059] Calcium carbonate: 20%

[0060] Dioctyl phthalate: 4%

[0061] Stearic acid: 2%

[0062] Epoxy methyl oleate: 2%

[0063] Lead dibasic stearate: 3%

[0064] Polyethylene wax: 4%

[0065] Titanate coupling agent: 3%

[0066] Industrial white oil: 2%

[0067] Put the mixture prepared according to the above ratio into a grinder to grind the mixture. The particle size of the powder after grinding is 30 mesh. Mix the above powder thoroughly with a mixer, and then put the powder into the feeding device of the extrusion molding machine; After the mold is installed on the molding machine, the mold and the material pipe are heated. The heating temperature is controlled at 160°C-180°C, and then the discharge valve of the feeding device is opened....

Embodiment 3

[0069] A method for manufacturing recycled wood-plastic composite structural profiles according to the present invention, the formulated mixture formula is as follows:

[0070] Straw: 65%

[0071] PVC: 10%

[0072] Calcium Carbonate: 10%

[0073] Dibutyl phthalate: 3%

[0074] Stearic acid: 1%

[0075] Epoxy ethyl oleate: 1%

[0076] Tribasic lead sulfate: 3%

[0077] Oxidized polyethylene wax: 3%

[0078] Dicumyl peroxide: 3%

[0079] Industrial white oil: 1%

[0080] Put the mixture prepared according to the above ratio into a grinder to grind the mixture. The particle size of the powder after grinding is 50 mesh. The above powder is fully mixed with a mixer, and then the powder is put into the feeding device of the extrusion molding machine; After the mold is installed on the molding machine, the mold and the material pipe are heated. The heating temperature is controlled at 160°C-180°C, and then the discharge valve of the feeding device is opened. The mixture enter...

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Abstract

The invention discloses a manufacturing method of a regenerated wood-plastic composite structural profile, which belongs to the technical field of polymer material processing and contains wood fiber, polyethylene resin, calcium carbonate, plasticizer, stearic acid, epoxy oil, and stabilizer. The mixture of lubricant, coupling agent and industrial white oil is fully mixed in the mixer; the mixture is added to the extrusion molding machine to gel; extruded into the mold for molding; the molded product in the mold is cooled and shaped with cooling water; The shaped products are drawn out and then cut into finished products. The wood-plastic composite structural profile produced by adopting the raw material formula and process of the present invention is superior to other similar products in terms of appearance quality and physical and chemical properties.

Description

Technical field: [0001] The invention belongs to the technical field of polymer material processing, and in particular relates to a manufacturing method of recycled wood-plastic composite structural profiles. Background technique: [0002] As we all know, my country is a country with poor timber resources, and the forest coverage rate is only 2.7%. However, with the rapid development of economy, my country's demand for timber is increasing day by day. As the largest country in my country, the import volume of timber has been far greater than its export volume, so the disharmony between the possession of timber resources and the rapid economic development has become increasingly prominent, and the huge gap in the domestic timber market will exist for a long time. [0003] Wood-plastic composite profile is a new type of material developed in recent years. This material combines the properties and advantages of wood and plastic. Products can replace wood and plastic, and more im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L97/02C08L101/00C08K13/02C08K3/26C08K5/09C08K5/15
Inventor 李木林
Owner 广东贤林家居用品有限公司
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