Silver ion antibacterial plastic industry application solution
Silver ion antibacterial plastic industry application solution
1. Introduction to the use of inorganic silver-loaded antibacterial agents
Microbes are closely related to people's lives. On the one hand, people use the beneficial effects of microorganisms for brewing, food processing, etc. On the other hand, people are also faced with microbial infestation, that is, the spread and spread of harmful bacteria, which seriously threatens human health. According to statistics, the number of deaths caused by bacterial infections in the world is tens of millions. In 1996, the nationwide incidence of pathogenic coliforms 0-157 infections in Japan once attracted worldwide attention. Today, with the rapid development of science and technology, Xi'an Kangwang Antibacterial Technology Co., Ltd. has developed inorganic silver-loaded antibacterial agents, including antibacterial ceramics, antibacterial plastics, antibacterial fibers and many other antibacterial products to meet people's demand for antibacterial products.
2. Antibacterial plastic
[How to use antibacterial agents]
Slightly... (please understand the details!)
[recommended addition amount]
The effective content of the antibacterial agent in the antibacterial product is preferably from 1 to 1.2%.
In the antibacterial plastic products, as the content of silver ions increases, the antibacterial effect will also increase. However, after the antibacterial agent reaches a certain amount (limit), the antibacterial effect also reaches the limit, and the excess will cause waste. The antibacterial plastic masterbatch generally has an antibacterial agent added in an amount of 20 to 30%, the antibacterial plastic masterbatch is added in a plastic product of 5 to 3.5%, and the antibacterial agent has an antibacterial agent content of about 1%.
[Manufacturing process of antibacterial masterbatch]
Slightly... (please understand the details!)
[How to use antibacterial masterbatch]
The plastic antibacterial masterbatch is a concentrated antibacterial component with good pre-dispersibility. In addition to the production process of plastic products or antibacterial fibers, blending and granulation can also be added when producing antibacterial plastics. The antibacterial plastic product produced by the antibacterial masterbatch has a degree of dispersibility of the antibacterial agent in the plastic product which is much better than that obtained by direct blending with the antibacterial agent. Therefore, the antibacterial effect of the antibacterial agent can be fully exerted, the product quality can be more stable, and the cost of materials and after-sales service can be reduced. In addition, some products can be directly used to add antibacterial agents. For example, plastic powders (such as PVC...) are easier to handle when mixed with antibacterial agents. The technical requirement is to make the surface dispersibility of antibacterial agents.
ã€Kangwang Antibacterial Masterbatch Series】
(1) Plastic general-purpose antibacterial masterbatch (EVA masterbatch): The purpose of this product is to meet the requirements of general antibacterial products with antibacterial effect, wide application range, various general-purpose plastic and plastic processing techniques can be used, and the price is moderate. . Therefore, EVA masterbatch can be used in most general-purpose plastics such as PP, PE, HIPS, ABS, SPVC, as well as conventional molding processes such as injection molding, extrusion, and blow molding. The masterbatch matrix has broad and good compatibility with other plastics;
(2) Special series of antibacterial masterbatch for melt-spun fiber includes polypropylene antibacterial masterbatch (mainly used for filaments, short filaments, etc.); nylon antibacterial masterbatch (can be used for toothbrush); polyester antibacterial masterbatch (mainly used for long Silk, short filament, etc.)
(3) Polyethylene series antibacterial masterbatch includes high density polyethylene, low density polyethylene and the like. Can be used for film, blow bottle, cast film, pipe, injection molding and other products;
(4) Polypropylene series antibacterial masterbatch. Can be used for film, blow bottle, cast film, pipe, sheet, monofilament, injection molding, home appliances and other products;
(5) ABS antibacterial masterbatch. Can be used for pipes, sheets, home appliances, injection molding and other products;
(6) High impact polystyrene series antibacterial masterbatch. Can be used for sheet, home appliances, injection molding and other products.
(7) PET series antibacterial masterbatch: mainly used for sheet, film, blow bottle, fiber, home appliance, injection molding and other products.
[Antibacterial masterbatch technical parameters]
main ingredient:
Carrier resin, silver inorganic antibacterial agent, composite auxiliary
Technical indicators:
Project
Indicator
Exterior
White granular
Particle size
¢ 2×3
Silver inorganic antibacterial agent content
20%
Density (g/cm3)
1.4±10%
Melt flow rate (g/10min)
5~36
Heat resistance (°C)
260
Weight loss rate (%) (60 ° C air drying)
≤0.5
Antibacterial performance index
Bacterial species
Add amount (wt%)
Antibacterial rate (%)
Remarks
E.coli
4~5
>90
Inspection technology based on QB/T2591-2003 "antibacterial plastic - antibacterial performance test method and antibacterial effect"
Staphylococcus aureus
>90
Salmonella typhimurium
>90
[Scope of application]
It can be widely used in various types of textile fibers, PP, PE, ABS and other injection molding and plastic products for extrusion and blown film.
ã€Precautions】
(1) The inorganic silver-loaded antibacterial agent should be diluted with tap water to prevent discoloration of silver ions;
(2) b has opacity, which has a slight effect on the product added with toner, it is recommended to increase the amount of pigment;
(3) The inorganic silver-loaded antibacterial agent has a certain moisture absorption property, and the package is opened as soon as possible. If the unused antibacterial agent has agglomeration, it can be used by heating at 100 ° C for 2 hours;
(4) If the product has special requirements for transparency, the company can provide a special antibacterial agent;
(5) When using antibacterial masterbatch, be sure to mix well with the plastic raw materials, otherwise it will affect the antibacterial effect (using the same color masterbatch).
[China Antibacterial Fabric Network ]
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