1、Theory
Silver has been proven as a natural bactericidal material. However, since the buckle silver lacks surface activity, it is necessary to add a large amount of silver to get the effect of sterilization, which makes it lack cost efficiency in the production process, the usage and the appearance. These shortcomings well be greatly improved if the size of buckle silver can be reduced to nano-scale. After the silver is nanosized, these nanoparticles obtain high chemical activity owing to the scarcity of surface atomic coordination which provides it substantial increase in surface potential energy. Moreover, the smaller the particles are, the more amounts the atoms will be exposed to the surface, and the stronger the bactericidal ability will be.
2、Description
First of all, coats nano-size inorganic silver ions with special base material to make it a powdery material with high temperature resistance and fine chemical durability. Secondary, add powder into plastic such as TPU, PET to produce master batch. The silver irons within the master batch have good antibacterial effect against E. coli, Staphylococcus and Pseudomonas aeruginosa.
3、Main Ingredients
Nano silver antibacterial powder, plastic particles
4、Function
Good antibacterial effect against E. coli, Staphylococcus and Pseudomonas aeruginosa.
5、Features
1.High safety (No volatile), good heat resistance, more safety toward human body
2.For PET – since the material is not dipped on the surface but evenly distributed in the fiber structure, it has good fastness to laundering and can be washed in any way without affecting the function. There is also good workability and dying affinity.
3.Basic Specification
TYPE | Copolymer |
I.V. ([η]) | 0.50±0.02 |
Moisture Content (wt %) | <0.5 |
Melting Point(℃) | 246±4 |
Molding Temp.( ℃) | 275-285 |
Acid Value (COOH)( 10-6equ/g) | 30MAX |
6、Precautions
Keep away from sunlight. Avoid inclusions such as Cl-, NO3-, which tend to react with silver ions.
A. Product Description
Nanoscale Aqueous Carbon Black Dispersion is a black water-based pigment with nanoscale particle size. It has good compatibility with aqueous systems and does not agglomerate. It possesses excellent light resistance, weather resistance and alkali resistance.
B. Chemical Properties
Form |
Emulsion |
Color |
Black Slurry |
Pigment Name |
Pigment Black 7 |
CAS Number |
1333-86-4 |
Particle Size |
D50 42nm, D97 43nm |
Color Concentration |
33%(±2%) |
Viscosity |
〈100mPa.s(RV-1,V20) |
Solvent System |
Water |
C. Product Features
- Nanoscale particle size. Does not agglomerate or stratify in long-term storage.
- High concentration. High colorant strength. High hiding power.
- High black brightne High Gloss. Mirror effect can be achieved.
- Resin and thickener excluded. Good compatibility in water-based system.
- Great chemical resistance, light resistance, weather resistance.
D. Applications
Ink, water-based pen and marker, inkjet, leather, printing, interior and exterior emulsion paint, steel blackener, water-based resin and water-based wood paint…etc.
E. Package/ Shelf life
1. Package: 5kg/Can, 25kg/Open head drum
2. Shelf live: 24 months at least.