High-performance antibiosis wood plastic composite material and preparation method thereof

A wood-plastic composite material, high-performance technology, applied in the field of wood-plastic composite materials, can solve problems such as poor antibacterial performance, and achieve the effect of reducing decomposition, good stability, high efficiency and simple surface grafting modification

Inactive Publication Date: 2011-08-03
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcoming of the existing wood-plastic composite material with poor antibacterial properties for long-term use, and graft active antibacterial monomers on the surface of plant fiber particles through high-energy radiation to improve the stability and long-term performance of active antibacterial monomers, thereby Achieving long-lasting antibacterial properties of wood-plastic composites

Method used

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  • High-performance antibiosis wood plastic composite material and preparation method thereof
  • High-performance antibiosis wood plastic composite material and preparation method thereof
  • High-performance antibiosis wood plastic composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Weigh 100 parts of recycled PE plastic powder with a particle size of 10 mesh according to the weight ratio, and the particle size is 60 mesh. 20 parts of wood powder grafted on the surface of methyl-4-ethyl-1,3-oxazolidin-2-one, 80 parts of activated calcium carbonate, 10 parts of compatibilizer PE-g-MAH, 6 parts of calcium stearate 8 parts of zinc stearate, 10 parts of PE wax, 3 parts of antioxidant 1010, 4 parts of light stabilizer 770, and 2 parts of toner. Mix at high speed for 18 minutes at rpm. The mixed material is released and added to a parallel twin-screw extruder for extrusion and granulation. The temperatures of each section of the extruder are: 140°C, 170°C, 190°C, 190°C, 195°C and 195°C (head temperature) , the screw speed is 30 rpm. The pellets are made into standard specimens by pressing, and various mechanical properties and antibacterial properties are tested. The formula, test standards and results are shown in Table 7, and each component is in pa...

Embodiment 2

[0044] Weigh 100 parts of recycled PP plastic powder with a particle size of 20 mesh according to the weight ratio. 40 parts of bamboo powder grafted on the surface of methyl-4-ethyl-1,3 oxazolidin-2-one, 60 parts of activated calcium carbonate, 15 parts of compatibilizer PP-g-MAH, 8 parts of calcium stearate 6 parts, 6 parts of zinc stearate, 6 parts of PE wax, 4 parts of antioxidant 1076, 4 parts of light stabilizer, 3 parts of toner, put the above raw materials into a high-speed mixer, at 95 ° C, 100 rpm Mix at high speed for 12 minutes at rpm. The mixed material is released and added to a parallel twin-screw extruder for extrusion and granulation. The temperatures of each section of the extruder are: 180°C, 200°C, 210°C, 210°C, 215°C and 215°C (head temperature) , the screw speed is 35 rpm. The pellets are made into standard specimens by pressing, and various mechanical properties and antibacterial properties are tested. The formula, test standards and results are shown...

Embodiment 3

[0048] Weighing 100 parts of recycled PVC plastic powder with a particle size of 30 mesh according to the weight ratio, the particle size is 200 mesh, and the surface is passed through methacryloyloxyethyl-trimethylammonium chloride and 1-propenyl-hydantoin. Grafted bran 80 parts, activated calcium carbonate 40 parts, compatibilizer CPE-g-MAH 30 parts, calcium stearate 8 parts, zinc stearate 8 parts, PE wax 10 parts, antioxidant 300 5 parts , 5 parts of light stabilizer 765, 4 parts of toner, put the above raw materials into a high-speed mixer, and mix at a high speed for 16 minutes at 105°C and a speed of 80 rpm. The mixed material is released and added to a parallel twin-screw extruder for extrusion and granulation. The temperatures of each section of the extruder are: 160°C, 180°C, 190°C, 190°C, 195°C and 195°C (head temperature) , the screw speed is 40 rpm. The pellets are made into standard specimens by pressing, and various mechanical properties and antibacterial proper...

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Abstract

The invention provides a high-performance antibiosis wood plastic composite material and a preparation method thereof, and relates to a composite material obtained by blending surface grafting modification vegetable fiber powder and molding powder. The high-performance antibiosis wood plastic composite material comprises components of modification vegetable fiber powder of which the surface is grafted with various germifuga, recycled molding powder and the like. The various activity antibiosis monomers are grafted on the surface of the vegetable fiber powder by high-energy radiation, so that the antibacterial long residual action and mechanical property of the wood plastic composite material are improved obviously. The high-performance antibiosis wood plastic composite material in the invention is prepared from the components by a general method of fusing and blending in plastic processing. The wood plastic composite material has excellent antibacterial long residual action, and obviously improves the interface of wood and plastic in the wood plastic composite material because of the chemistry grafting modification of the surface of the vegetable fiber, and ensures that the material mechanical property and the water absorbency resistance are improved greatly, and can be applied in the fields of indoor or outdoor decoration, furniture, packaging and the like.

Description

technical field [0001] The invention relates to a wood-plastic composite material, in particular to a high-performance antibacterial wood-plastic composite material prepared by using waste plastic powder and surface-grafted modified plant fiber powder and a preparation method thereof. Background technique [0002] Wood-plastic composites are composite materials of wood fibers and thermosetting or thermoplastic polymers. The blend of the two materials weakens their original performance deficiencies. Compared with wood, wood-plastic composite products are not easy to absorb water, are easier to design and require less maintenance, etc. Compared with plastic, wood-plastic composite materials are harder, cheaper, lighter and less thermally deformed. On the other hand, however, the composite of the two materials also brings new defects to the final material. Compared to wood, wood-plastic composites have a lower Young's modulus, higher density and are more expensive. Wood-plas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L23/06C08L23/12C08L25/06C08L33/12C08L67/02C08L97/02C08K13/02C08F289/00
Inventor 石光秦炜林少全孙丰强朱宏
Owner SOUTH CHINA NORMAL UNIVERSITY
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