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Antibacterial master batch for polypropylene plastic cup and preparation method

A technology of polypropylene plastic and antibacterial masterbatch, which is applied in the field of antibacterial masterbatch for polypropylene plastic cups and its preparation, can solve the problems of poor compatibility, decreased strength, tensile properties and processing performance, poor processing performance of antibacterial plastics, etc. Strong binding ability, good melt compatibility, avoiding the effect of strength

Inactive Publication Date: 2019-01-08
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Aiming at the defects of poor compatibility between antibacterial masterbatch and plastic matrix resin and poor processing performance of antibacterial plastics, the present invention proposes a preparation method of antibacterial masterbatch for polypropylene plastic cups. The antibacterial masterbatch for acrylic plastic cups 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

[0032] (a). The layered zeolite is mechanically crushed to less than 100 mesh and then removed for subsequent use;

[0033] (b). Add 100 g of layered zeolite after removal of impurities in step (a) as a silver carrier into 50 g of hydrochloric acid solution with a concentration of 0.2 mol / L to obtain a semi-dry mixture, keep stirring evenly, and then add a concentration of 0.2 mol / L Silver nitrate solution 100g, stirred slowly, so that the layered zeolite is used as a template to deposit loaded silver chloride, and obtain the layered zeolite loaded with silver chloride;

[0034] (c). The silver chloride-loaded layered zeolite described in step (b) is dried at 55° C. and then reduced with hydrazine hydrate to obtain a silver-loaded zeolite antibacterial material;

[0035] (d). The silver-loaded zeolite antibacterial material described in step (c) is dispersed in the mixed solution of organic quaternary ammonium salt and maleic anhydride, and the concentration of organic quatern...

Embodiment 2

[0039] (a). Mechanically pulverize the layered zeolite to 100 mesh to 170 mesh, remove impurities, and set aside;

[0040] (b). Add 100 g of layered zeolite after removal of impurities in step (a) as a silver carrier into 50 g of hydrochloric acid solution with a concentration of 0.2 mol / L to obtain a semi-dry mixture, keep stirring evenly, and then add a concentration of 0.2 mol / L Silver nitrate solution 100g, stirred slowly, so that the layered zeolite is used as a template to deposit loaded silver chloride, and obtain the layered zeolite loaded with silver chloride;

[0041] (c). The layered zeolite loaded with silver chloride described in step (b) is dried at 65° C. and then reduced with zinc powder to obtain a silver-loaded zeolite antibacterial material;

[0042] (d). The silver-loaded zeolite antibacterial material described in step (c) is dispersed in the mixed solution of organic quaternary ammonium salt and maleic anhydride, and the concentration of organic quaternar...

Embodiment 3

[0046] (a). The layered zeolite is mechanically crushed to less than 100 mesh and then removed for subsequent use;

[0047] (b). Add 100 g of layered zeolite after removal of impurities in step (a) as a silver carrier into 50 g of hydrochloric acid solution with a concentration of 0.4 mol / L to obtain a semi-dry mixture, keep stirring evenly, and then add a concentration of 0.2 mol / L Silver nitrate solution 100g, stirred slowly, so that the layered zeolite is used as a template to deposit loaded silver chloride, and obtain the layered zeolite loaded with silver chloride;

[0048] (c). The layered zeolite loaded with silver chloride described in step (b) is dried at 65° C. and then reduced with zinc powder to obtain a silver-loaded zeolite antibacterial material;

[0049] (d). The silver-loaded zeolite antibacterial material described in step (c) is dispersed in the mixed solution of organic quaternary ammonium salt and maleic anhydride, and the concentration of organic quaterna...

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Abstract

The invention relates to the technical field of bacteria resistance of a polypropylene plastic cup, and particularly relates to an antibacterial master batch for the polypropylene plastic cup and a preparation method. The preparation method of the antibacterial master batch for the polypropylene plastic cup comprises the following steps: after carrying out mechanical crushing on layered zeolite, removing impurities, then adding the layered zeolite used as a silver carrier into a hydrochloric acid solution to obtain a semi-dry mixture, continuously and uniformly stirring, then adding a silver nitrate solution, slowly stirring, and after obtaining layered zeolite loaded with silver chloride, carrying out re-drying and reduction to obtain a silver-carrying zeolite antibacterial material; thendispersing the material in a mixed solution of organic quaternary ammonium salt and maleic anhydride, adding styrene in which an initiator is dissolved to carry out grafting, performing a heat preservation reaction for 1 to 3h at a temperature of 60 to 80 DEG C, then cooling to the room temperature, filtering, and carrying out washing drying and crushing; and uniformly mixing the crushed solid and matrix resin in an internal mixer, feeding the obtained product into a screw extruder, and carrying out extrusion pelletizing in the screw extruder so as to obtain the antibacterial plastic master batch with excellent dispersibility. The master batch is good in antibacterial performance and good in machining performance.

Description

technical field [0001] The invention relates to the technical field of antibacterial polypropylene plastic cups, in particular to an antibacterial masterbatch for polypropylene 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 af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K9/12C08K3/08C08K7/00C08K3/34C08K9/04C08J3/22
CPCC08J3/226C08J2323/12C08J2423/12C08K3/34C08K7/00C08K9/04C08K9/12C08K2003/0806
Inventor 陈庆昝航
Owner CHENDU NEW KELI CHEM SCI CO LTD
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