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Photocatalytic antibacterial biomass wood-plastic composite material and preparation method thereof

A technology of wood-plastic composite materials and biomass, which is applied in the field of photocatalytic antibacterial biomass wood-plastic composite materials and its preparation, can solve the problems of poor bactericidal effect of microorganisms, large influence, and poor wood-plastic, etc., and achieve long-term High-efficiency multiple sterilization, strong adsorption performance, and the effect of solving discoloration

Inactive Publication Date: 2015-07-22
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned antibacterial agents are widely used for their slow-release, long-acting, low toxicity, and safe antibacterial properties, but their bactericidal effect is not good for some microorganisms, especially for some viruses; and they are greatly affected by organic matter; wood-plastic composites The material will release toxic substances during the heating and forming process, which is harmful to the human body; metal ions such as calcium, magnesium, and aluminum contained in wood-plastic composite materials have an antagonistic effect on quaternary ammonium antibacterial agents
These problems will have adverse effects on the application of wood-plastic

Method used

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  • Photocatalytic antibacterial biomass wood-plastic composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: The photocatalytic antibacterial biomass wood-plastic composite material adopts the following raw material ratio and preparation method.

[0023] The biomass wood-plastic composite material is composed of the following components: 35 parts of waste PE plastic, 70 parts of waste poplar wood powder, 12 parts of talcum powder, modified nano-TiO 2 Ag + 、Cu 2+ 3 parts of composite antibacterial agent powder, 2 parts of aluminum hydroxide, 6 parts of TWP104 produced by Struktol Company of the United States, 5 parts of bis(dioctyl pyrophosphate) glycolate titanate, 5 parts of toughening agent, antioxidant 5 parts of agent, 4 parts of light / heat stabilizer, 4 parts of colorant.

[0024] Preparation process: (1) Take modified nano-TiO 2 Ag + 、Cu 2+ Compound antibacterial agent powder, lubricant, flame retardant, and inorganic filler are added to a high-speed mixer for high-speed mixing, fully mixed evenly, and an antibacterial additive mixture is obtained, whic...

Embodiment 2

[0031] Embodiment 2: The biomass wood-plastic composite material adopts the following raw material ratio and preparation method.

[0032] The biomass wood-plastic composite material is composed of the following components: 25 parts of waste PP plastic, 75 parts of waste birch powder, 20 parts of fly ash, modified nano-TiO 2 Ag + 、Cu 2+ 8 parts of composite antibacterial agent powder, 4 parts of decabromodiphenyl ether, 1 part of stearic acid, 8 parts of maleic anhydride grafted polyethylene, 6 parts of toughening agent, and 6 parts of light / heat stabilizer.

[0033] The preparation process is the same as in Example 1 except for the following differences: (2) When the temperature is heated to 80°C, stop the machine and reduce the speed and open the large cover of the high mixer; when the temperature is heated to 130°C, put the material into the cold mixer The cylinder is cooled to 50°C to obtain the mixed material, and the material is discharged for later use. The obtained ...

Embodiment 3

[0037] Embodiment 3: The biomass wood-plastic composite material adopts the following raw material ratio and preparation method.

[0038] The biomass wood-plastic composite material is composed of the following components: 40 parts of waste PVC plastic, 63 parts of cotton straw powder, 18 parts of blast furnace ash, modified nano-TiO 2 Ag + 、Cu 2+ 10 parts of compound antibacterial agent powder, 1 part of melamine, 10 parts of PE wax, 2 parts of PA series high-efficiency lubricating dispersion compatible coupling agent, 8 parts of toughening agent, 5 parts of antioxidant, 8 parts of light / heat stabilizer, Coloring agent 4 parts.

[0039] The preparation process is the same as in Example 1 except for the following differences: (2) When the temperature is heated to 100°C, stop the machine and reduce the speed and open the cover of the high-mixer; when the temperature is heated to 120°C, put the material into the cold mixer The cylinder is cooled to 50°C to obtain the mixed m...

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Abstract

The invention discloses a photocatalytic antibacterial biomass wood-plastic composite material and a preparation method thereof. The photocatalytic antibacterial biomass wood-plastic composite material mainly comprises the following constituents in parts by weight: 25 to 75 parts of thermoplastic plastic, 15 to 75 parts of wood powder, 5 to 20 parts of an inorganic filler, 1 to 10 parts of a modified nano TiO2 carried Ag+ and Cu2+ complex antimicrobial agent, 1 to 5 parts of a fire retardant, 1 to 10 parts of a lubricating agent, and 1 to 8 parts of a coupling agent. The composite material takes the modified nano TiO2 carried Ag+ and Cu2+ complex antimicrobial agent, the (waste) thermoplastic plastic, the (waste) wood powder and other auxiliaries as raw materials, so that the harm of mildew and rot and fungal infection of the wood-plastic composite material and termite and other insects is avoided, the environment is protected, and the resource waste is reduced. Taking the modified nano TiO2 carried Ag+ and Cu2+ complex antimicrobial agent as powder, the composite material has the characteristics that antibacterial and bactericidal effect is rapid and efficient, the composite material is safe and nontoxic, does not produce drug-resistance bacteria, is thorough, durable and stable, and has broad-spectrum antibacterial property, and the like, and further has the characteristics of double long effectiveness of photocatalytic antibacterial and antifungal effect of TiO2 and antibacterial and bactericidal effect of Ag+ and Cu2+.

Description

technical field [0001] The invention relates to a composite material and a preparation method thereof, in particular to a photocatalytic antibacterial biomass wood-plastic composite material and a preparation method thereof. Background technique [0002] Biomass (wood-plastic) composite materials refer to renewable biomass resources such as woody, grassy and vine plants and forest product wastes as raw materials, processed and manufactured into performance by high-tech means such as physics, chemistry and bioengineering. Excellent, environment-friendly, diverse varieties, high added value, a wide range of uses and can replace petrochemical and mineral resource products, a new type of material with modern technology characteristics. The material has five advantages, namely: diversification of raw materials; plasticization of preparation; environmental protection of products; economical application and low carbon regeneration. The various advantages of biomass (wood-plastic) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/06C08L23/12C08L25/06C08L27/06C08K13/06C08K9/12C08K3/22C08K3/34C08K3/26C08K5/3492C08K5/06
Inventor 柯春林宋云春
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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