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Compound anti-microbial master batch and preparation method thereof, anti-microbial plastic packaging product and preparation method thereof

A technology of compounding antibacterial and antibacterial plastics, applied in the field of functional plastics, can solve the problems of uneven dispersion of antibacterial agents, microphase migration, microphase separation, etc., and achieve the effect of improving antibacterial efficiency and broad spectrum, and solving poor compatibility.

Inactive Publication Date: 2017-05-10
LOGOS PACKAGING HUIZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After more than ten years of development, antibacterial agents and antibacterial plastic packaging products have made great progress. High-quality and cheap new antibacterial agents and antibacterial plastic packaging products have been continuously developed. The development of organic / inorganic composite antibacterial agents, inorganic nano-antibacterial Antibacterial agents and nanocomposite antibacterial agents have the characteristics of excellent performance, low price, and small dosage. However, these antibacterial agents have disadvantages such as uneven dispersion, microphase separation, and microphase migration in plastic packaging products, which lead to existing antibacterial plastic packaging. The antibacterial high efficiency, antibacterial persistence and antibacterial broad-spectrum of the product are not ideal enough

Method used

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  • Compound anti-microbial master batch and preparation method thereof, anti-microbial plastic packaging product and preparation method thereof

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Effect test

Embodiment 1

[0030] The embodiment of the present invention a kind of preparation method of compound antibacterial masterbatch, comprises the following steps:

[0031] (1) Preparation steps of inorganic antibacterial agent: AgNO 3 (Ionic antibacterial agent) is dispersed and suspended in calcium phosphate solution (carrier solution), after ion exchange reaction, after filtering and drying, the obtained substance is mixed with Ag 2 O are stirred evenly together, add bentonite (binder), calcined at 800°C for 1h, grind, and pass through a 325 mesh sieve to obtain an inorganic antibacterial agent;

[0032] (2) The preparation step of organic-inorganic composite antibacterial agent: the inorganic antibacterial agent that step (1) obtains is made into suspension, adds benzyl ammonium chloride salt (antibacterial dispersant), allyltriethylammonium bromide ( organic antibacterial agent) and azobisisoheptanonitrile (thermal initiator), reacted at 75°C for 20h, filtered, washed with water, dried in...

Embodiment 2

[0041] The embodiment of the present invention a kind of preparation method of compound antibacterial masterbatch, comprises the following steps:

[0042] (1) The preparation step of inorganic antibacterial agent: the neodymium oxide Nd2 o 3 (Ionic antibacterial agent) dispersed and suspended in sodium-based montmorillonite (Na-MMT) solution, after ion exchange reaction, stirred at 65°C for 4 hours, filtered, washed, vacuum-dried at 65°C for 48 hours, ground, passed through a 325-mesh sieve, Get neodymium-montmorillonite (Nd-MMT), which is the inorganic antibacterial agent;

[0043] (2) The preparation step of organic-inorganic composite antibacterial agent: the inorganic antibacterial agent that step (1) obtains is made into suspension, adds alkyltrimethylammonium salt (antibacterial dispersant), 6-bromohexanoic acid-2- (2-methacryloyloxy) ethyl ester pyridinium salt (organic antibacterial agent) and Fe 2+ -Potassium persulfate (thermal initiator), reacted at 75°C for 20h, ...

Embodiment 3

[0052] The embodiment of the present invention a kind of preparation method of compound antibacterial masterbatch, comprises the following steps:

[0053] (1) Preparation steps of inorganic antibacterial agent: preheat 30ml of water glass and 50ml of sodium bicarbonate and pour them into a beaker at the same time, stir at a constant temperature of 90°C for 1h, add preheated 20ml of water glass and 25ml of sodium bicarbonate (add dropwise ), after reacting for 20min, the pH value was adjusted to be 5-6 to obtain a silica gel solution (carrier solution). In this silica gel solution, an ionic antibacterial agent composed of cerium nitrate and copper sulfate was added, suction filtered for 5 hours, washed with water, and the filter cake was placed in an oven. Drying at 120°C for 2 hours, grinding, and passing through a 325-mesh sieve to obtain copper-cerium antibacterial white carbon black, which is the inorganic antibacterial agent;

[0054] (2) The preparation step of organic-in...

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Abstract

The invention relates to the technical field of a functional plastic and specifically relates to a compound anti-microbial master batch and a preparation method thereof, an anti-microbial plastic packaging product and the preparation method thereof. The anti-microbial plastic packaging product provided by the invention is prepared according to the following steps: loading an inorganic anti-microbial agent to a carrier solution through an ionization reaction; bonding an organic anti-microbial agent to the surface of the inorganic anti-microbial carrier through free radical polymerization reaction, thereby acquiring an efficient organic-inorganic compound anti-microbial agent; adopting a twin-screw extruder for co-extruding and compounding the organic-inorganic compound anti-microbial agent with base resin, thereby acquiring a concentrated compound anti-microbial master batch; and lastly, adding into a packaging material. According to the invention, the anti-microbial efficiency and wide spectrum of the anti-microbial plastic packaging product are promoted; the problem of poor compatibility between the anti-microbial agent and the base resin can be solved; the uniformity problem of macro-micro dispersion can be solved; and the high efficiency, wide spectrum and durability of the anti-microbial plastic packaging product are realized.

Description

technical field [0001] The invention relates to the technical field of functional plastics, in particular to a composite antibacterial masterbatch and a preparation method thereof, an antibacterial plastic packaging product and a preparation method thereof. Background technique [0002] The use of plastic packaging products in daily life is increasing day by day. With the improvement of people's quality of life, the hygienic and safety requirements for the use of plastic packaging products are getting higher and higher. However, the surface of plastic packaging products is usually easily contaminated with water and oil, which is easy to breed microorganisms coli, Staphylococcus aureus, etc., pose a great threat to human health, and are an important source of transmission of various diseases such as colds and hepatitis. Therefore, antibacterial healthy plastic packaging products have emerged as the times require. [0003] Antibacterial plastic packaging products refer to a ne...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L69/00C08L33/12C08K13/06C08K9/12C08K3/28C08K3/34C08K5/19C08K3/22C08K5/3432C08K3/36C08K7/26C08K5/47C08J3/22
CPCC08K13/06C08J3/226C08J5/18C08J2323/06C08J2323/12C08J2333/12C08J2369/00C08J2423/06C08J2423/12C08J2433/12C08J2469/00C08K3/22C08K3/28C08K3/34C08K3/346C08K3/36C08K5/19C08K5/3432C08K5/47C08K7/26C08K9/12C08K2003/221C08K2201/014C08L23/06C08L23/12C08L33/12C08L69/00C08L2203/16C08L2205/025
Inventor 卓友敬肖定书杨浩文
Owner LOGOS PACKAGING HUIZHOU CO LTD
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