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A kind of environment-friendly antibacterial plastic film and preparation method thereof

A plastic film and environmental protection technology, applied in the field of environmental protection antibacterial plastic film and its preparation, can solve the problems of low tensile strength, low antibacterial performance, poor binding force, etc., and achieve obvious strength increase, good sterilization effect, and improved strength Effect

Active Publication Date: 2022-05-27
宁波鼎峰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating still has problems such as low antibacterial performance and low tensile strength.
[0005] In the prior art, in order to increase the tensile strength of the plastic film, some plant fibers are usually added to increase its strength, resulting in an increase in cost and the problem of poor bonding.

Method used

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  • A kind of environment-friendly antibacterial plastic film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: the preparation method of modified copper oxide-titanium dioxide-zinc oxide composite nanofibers, the concrete steps are as follows:

[0033]Take 0.5mol of zinc chloride, add 2L of a mixed solvent of ethylene glycol and water (volume ratio of ethylene glycol and water is 1:3), add 0.5mol of sodium hydroxide, ultrasonically mix for 10min, and then add 0.8mol of titanium dioxide and 0.1mol of nitric acid Copper, then add 0.4mol of polyvinylpyrrolidone, continue to stir for 10min, and then transfer to a high-pressure hydrothermal reaction kettle lined with polytetrafluoroethylene. After reaching room temperature, take out, filter, wash and dry to obtain copper oxide-titanium dioxide-zinc oxide composite nanofibers; add propanol to the copper oxide-titanium dioxide-zinc oxide composite nanofibers, stir, and then add a titanate coupling agent, Heating to 50-60°C, stirring the reaction uniformly for 1 h, removing the solvent after stopping the reaction, washing ...

Embodiment 2

[0034] Embodiment 2: the preparation method of modified copper oxide-titanium dioxide-zinc oxide composite nanofibers, the concrete steps are as follows:

[0035] Take 0.45mol zinc chloride, add 2L of a mixed solvent of ethylene glycol and water (volume ratio of ethylene glycol and water is 1:3), add 0.5mol sodium hydroxide, carry out ultrasonic mixing for 10min, then add 0.7mol titanium dioxide and 0.1mol nitric acid copper, then add 0.5mol of polyvinylpyrrolidone, continue to stir for 12min, and then transfer to a high-pressure hydrothermal reaction kettle lined with polytetrafluoroethylene. After cooling to room temperature, take it out, filter, wash and dry to obtain copper oxide-titanium dioxide-zinc oxide composite nanofibers; add propanol to the copper oxide-titanium dioxide-zinc oxide composite nanofibers, stir, and then add a titanate coupling agent , heated to 50-60 ℃, uniformly stirred for 3 hours, and the solvent was removed after the reaction was stopped, washed, ...

Embodiment 3

[0036] Embodiment 3: the preparation method of modified copper oxide-titanium dioxide-zinc oxide composite nanofibers, the concrete steps are as follows:

[0037] Take 0.4mol of zinc chloride and add 2L of a mixed solvent of ethylene glycol and water (the volume ratio of ethylene glycol and water is 1:3), add 0.5mol of sodium hydroxide, carry out ultrasonic mixing for 10min, and then add 0.6mol of titanium dioxide and 0.1mol of nitric acid Copper, then add 0.6mol of polyvinylpyrrolidone, continue to stir for 12min, and then transfer to a high-pressure hydrothermal reaction kettle lined with polytetrafluoroethylene. After cooling to room temperature, take it out, filter, wash and dry to obtain copper oxide-titanium dioxide-zinc oxide composite nanofibers; add propanol to the copper oxide-titanium dioxide-zinc oxide composite nanofibers, stir, and then add a titanate coupling agent , heated to 50-60 ℃, uniformly stirred and reacted for 5h, after the reaction was stopped, the sol...

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Abstract

The invention relates to the technical field of plastic film production, in particular to an environment-friendly antibacterial plastic film and a preparation method thereof. The plastic film includes the following raw materials: polypropylene, calcium stearate, polyvinyl alcohol, biodegradable materials, calcium carbonate, silane coupling agent, curing agent, plasticizer, antibacterial agent, talcum powder, carboxymethyl cellulose , the antibacterial agent is a modified copper oxide-titanium dioxide-zinc oxide composite nanofiber. In the present invention, by using polypropylene as the film matrix, by adding biodegradable materials, its biodegradability can be effectively exerted, and by adding modified copper oxide-titanium dioxide-zinc oxide composite nanofibers, no additional plant fibers are needed, and at the same time it can also play a role It has excellent antibacterial properties and can be well combined with polypropylene to reduce costs and improve antibacterial properties and film strength.

Description

technical field [0001] The invention relates to the technical field of plastic film production, in particular to an environment-friendly antibacterial plastic film and a preparation method thereof. Background technique [0002] Plastic films are films made of polyethylene, polypropylene, polystyrene, and other resins, used for packaging, and used as lamination layers. At the same time, it is accompanied by the pollution of plastic films to the environment. Because the components of ordinary plastic films are difficult to decompose, they will stay in the soil for a long time, affecting plant growth, polluting the environment, and having no antibacterial properties. [0003] As a photocatalytic antibacterial agent, nano-ZnO has excellent properties such as shielding ultraviolet rays, absorbing infrared rays, sterilizing and preventing mildew, and can be widely used in antibacterial plastics; nano-TiO 2 Its high stability and its excellent properties such as non-toxic and anti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L29/04C08L1/28C08K13/06C08K5/098C08K3/26C08K3/34C08K9/04C08K7/08C08K3/22C08J5/18
CPCC08J5/18C08J2323/12C08J2429/04C08J2401/28C08K13/06C08K5/098C08K2003/265C08K3/34C08K9/04C08K7/08C08K2003/2248C08K2003/2241C08K2003/2296C08K2201/011Y02W90/10
Inventor 惠建平
Owner 宁波鼎峰新材料科技有限公司
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