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Biomass antibacterial plastic material and preparation method thereof

An antibacterial plastic and biomass technology, applied in the field of plastic materials, can solve the problems of no antibacterial function, affecting material processing fluidity, comprehensive performance and performance stability, and high additive content, achieving good comprehensive performance and performance stability, Outstanding antibacterial effect and excellent performance stability

Inactive Publication Date: 2021-04-23
张本连
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the material does not have antibacterial function, and the added content of additives is high, which affects the processing fluidity, comprehensive performance and performance stability of the material

Method used

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  • Biomass antibacterial plastic material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of preparation method of biomass antibacterial plastic material is characterized in that, comprises the steps:

[0033] Step S1, preparation of 2,5-furandicarboxylic acid / polylactic acid polycondensate with double-terminated hydroxy groups: mix double-ended hydroxy-polylactic acid, 2,5-furandicarboxylic acid and catalyst evenly to obtain a mixed material, and then add the mixed material to In the high-pressure reaction kettle, replace the air in the kettle with inert gas, stir the esterification reaction at a temperature of 180°C and a pressure of 50KPa for 1 hour, then raise the temperature to 220°C, adjust the reaction pressure to 20kPa, and the reaction time is 1 hour ; then the reaction pressure is 50Pa, the temperature is 230 ℃, the reaction time is 8h, after the reaction is completed, cool to room temperature, adjust the pressure to normal pressure, discharge, and the obtained crude product is precipitated in water, and then the precipitated The polycondens...

Embodiment 2

[0042] A kind of preparation method of biomass antibacterial plastic material is characterized in that, comprises the steps:

[0043] Step S1, preparation of 2,5-furandicarboxylic acid / polylactic acid polycondensate with double-terminated hydroxy groups: mix double-ended hydroxy-polylactic acid, 2,5-furandicarboxylic acid and catalyst evenly to obtain a mixed material, and then add the mixed material to In the high-pressure reaction kettle, replace the air in the kettle with inert gas, stir the esterification reaction at a temperature of 185°C and a pressure of 60KPa for 1.5 hours, then raise the temperature to 225°C, adjust the reaction pressure to 23kPa, and the reaction time is 1.2 hours ; then the reaction pressure is 60Pa, the temperature is 233 ℃, the reaction time is 9h, after the reaction is completed, cool to room temperature, adjust the pressure to normal pressure, discharge, and the obtained crude product is precipitated in water, and then the precipitated The polyc...

Embodiment 3

[0052] A kind of preparation method of biomass antibacterial plastic material is characterized in that, comprises the steps:

[0053] Step S1, preparation of 2,5-furandicarboxylic acid / polylactic acid polycondensate with double-terminated hydroxy groups: mix double-ended hydroxy-polylactic acid, 2,5-furandicarboxylic acid and catalyst evenly to obtain a mixed material, and then add the mixed material to In the high-pressure reaction kettle, replace the air in the kettle with inert gas, stir the esterification reaction at a temperature of 190°C and a pressure of 75KPa for 2 hours, then raise the temperature to 230°C, adjust the reaction pressure to 30kPa, and the reaction time is 1.5 hours ; then the reaction pressure is 65Pa, the reaction time is 10h at a temperature of 235°C, after the reaction is completed, cool to room temperature, adjust the pressure to normal pressure, discharge, and the obtained crude product is precipitated in water, and then the precipitated The polyco...

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Abstract

The invention discloses a preparation method of a biomass antibacterial plastic material. The preparation method is characterized by comprising the following steps: S1, preparation of a 2,5-furandicarboxylic acid / dihydroxyl-terminated polylactic acid polycondensate; S2, preparation of a 2-vinyl furan / 5-allyl-3-methoxy methyl salicylate / probenazole / vinyl triethoxy silane copolymer; S3, material forming. The invention also provides the biomass antibacterial plastic material prepared by the preparation method of the biomass antibacterial plastic material. The biomass antibacterial plastic material is good in comprehensive performance and performance stability, remarkable in antibacterial effect, excellent in mechanical property, durability and aging resistance, and safe and environment-friendly to use.

Description

technical field [0001] The invention relates to the technical field of plastic materials, in particular to a biomass antibacterial plastic material and a preparation method thereof. Background technique [0002] Biomass materials refer to renewable biomass resources such as woody, grassy and vine plants and forest product wastes as raw materials, processed and manufactured by high-tech means such as physics, chemistry and bioengineering to have excellent performance and environmental friendliness. It is a new type of material with various varieties, high added value, wide application and can replace petrochemical and mineral resource products, and has the characteristics of modern science and technology. This kind of material has the advantages of diversification of raw materials, plasticization of preparation, environmental protection of products, economical application and low carbonization of regeneration, and is widely used in construction, decoration, furniture, transpo...

Claims

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Application Information

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IPC IPC(8): C08L67/06C08L37/00C08L25/18C08L91/00C08K5/521C08K7/06C08K5/092
CPCC08L67/06C08L2201/06C08L2201/08C08L2205/03C08L37/00C08L91/00C08K5/521C08K7/06C08K5/092C08L25/18
Inventor 张本连
Owner 张本连
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