Antibacterial material for plastic cup, and preparation method thereof

A technology for antibacterial materials and plastic cups, which is applied in the field of antibacterial materials for plastic cups, can solve the problems of poor compatibility, decreased strength, tensile properties and processing performance, and poor processing performance of antibacterial plastics, and achieves good compatibility and interface bonding ability. Strong, Avoid Intensive Effects

Pending Publication Date: 2021-06-11
湖北欣皓包装有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of poor compatibility between the current antibacterial masterbatch and plastic matrix resin and poor processing performance of antibacterial plastics, the present invention proposes a method for preparing antibacterial materials for plastic cups, and an antibacterial antibacterial material for plastic cups prepared by the method The material can give full play to the antibacterial properties of antibacterial materials, while avoiding the reduction of other processing properties such as the strength and tensile properties of plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (a). Grinding the high-silica zeolite to less than 100 meshes, removing impurities, and setting aside;

[0027] (b). Add 100 g of high-silica zeolite after removing impurities in step (a) as a nano-silver carrier into 50 g of lactic acid solution with a concentration of 0.2 mol / L to obtain a mixture, keep stirring evenly, and then add nitrous acid with a concentration of 0.2 mol / L Silver solution 100g, stir slowly, make to deposit loaded silver chloride with silicalite as template, obtain the silicalite of loaded silver chloride;

[0028] (c). The silver chloride-loaded high silica zeolite described in step (b) is dried at 55°C and then reduced with hydrazine hydrate to obtain a silver-loaded zeolite antibacterial material;

[0029] (d). The silver-loaded zeolite antibacterial material described in step (c) is dispersed in the mixed solution of antibacterial agent and maleic anhydride, and the concentration of antibacterial agent in the mixed solution of antibacterial a...

Embodiment 2

[0033] (a). Grinding the high-silica zeolite to 100 mesh to 170 mesh, removing impurities, and setting aside;

[0034] (b). Add 100 g of high-silica zeolite after removing impurities in step (a) as a nano-silver carrier into 50 g of lactic acid solution with a concentration of 0.2 mol / L to obtain a mixture, keep stirring evenly, and then add nitrous acid with a concentration of 0.2 mol / L Silver solution 100g, stir slowly, make to deposit loaded silver chloride with silicalite as template, obtain the silicalite of loaded silver chloride;

[0035] (c). Drying the silver chloride-loaded high-silica zeolite described in step (b) at 65° C. and then reducing it with zinc powder to obtain a silver-loaded zeolite antibacterial material;

[0036] (d). The silver-loaded zeolite antibacterial material described in step (c) is dispersed in the mixed solution of antibacterial agent and maleic anhydride, and the concentration of antibacterial agent in the mixed solution of antibacterial age...

Embodiment 3

[0040] (a). Grinding the high-silica zeolite to less than 100 meshes, removing impurities, and setting aside;

[0041] (b). Add 100 g of high-silica zeolite after removing impurities in step (a) as a nano-silver carrier into 50 g of lactic acid solution with a concentration of 0.4 mol / L to obtain a mixture, keep stirring evenly, and then add nitrous acid with a concentration of 0.2 mol / L Silver solution 100g, stir slowly, make to deposit loaded silver chloride with silicalite as template, obtain the silicalite of loaded silver chloride;

[0042] (c). Drying the silver chloride-loaded high-silica zeolite described in step (b) at 65° C. and then reducing it with zinc powder to obtain a silver-loaded zeolite antibacterial material;

[0043](d). The silver-loaded zeolite antibacterial material described in step (c) is dispersed in the mixed solution of antibacterial agent and maleic anhydride, and the concentration of antibacterial agent in the mixed solution of antibacterial agen...

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PUM

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Abstract

The invention relates to the technical field of antibacterial materials for plastic cups, and especially relates to an antibacterial material for a plastic cup, and a preparation method thereof. The preparation method of the antibacterial material for the plastic cup comprises the following steps: crushing high-silicon zeolite, removing impurities, adding the high-silicon zeolite as a nano-silver carrier into a lactic acid solution to obtain a mixture, continuously and uniformly stirring, adding a silver nitrite solution, slowly stirring to obtain silver chloride-loaded high-silicon zeolite, drying, and reducing to obtain a silver-loaded zeolite antibacterial material; dispersing the material in a mixed solution of an antibacterial agent and maleic anhydride, adding styrene-allyl dissolved with an initiator for grafting, carrying out heat preservation reaction at 50-90 DEG C for 0.5-4 hours, cooling to room temperature, filtering, washing, drying and crushing; and uniformly mixing the crushed solid and matrix resin in an internal mixer, feeding into a screw extruder, and extruding and granulating in the screw extruder to obtain the antibacterial plastic master batch with excellent dispersing performance. The prepared master batch is high in antibacterial property and easy to process.

Description

technical field [0001] The invention relates to the technical field of antibacterial materials for plastic cups, in particular to an antibacterial material for plastic cups and a preparation method. Background technique [0002] In the prior art, to obtain a plastic cup with an antibacterial effect, an antibacterial material can be added to the plastic raw material. There are several options for how antimicrobials are used in plastics. First, the antibacterial agent is mixed with the resin before the plastic is molded, and then processed and molded. Second, the antibacterial agent and resin are first mixed and mixed to make antibacterial plastics, and then processed into parts. Third, the antibacterial agent is first made into a high-concentration masterbatch with a carrier resin, that is, an antibacterial masterbatch. [0003] Use antibacterial masterbatch and resin to mix, directly process into antibacterial products or process antibacterial products after mixing and gr...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L25/06C08K9/12C08K3/08
CPCC08K2003/0806C08K2201/011C08L23/06C08L25/06C08K9/12C08K3/08
Inventor 易新国
Owner 湖北欣皓包装有限公司
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