Polyurethane polymer Wetting & Dispersing agents (Solvent type)
Polyurethane polymer Wetting & Dispersing agents(Solvent type)
KEPERDISP®-6468
Good compatibility and viscosity reduction effect,good dispersibility and color spreading ability for various pigments.can grinding universal pigment pastes.
Product overview
KEPERDISP®-6468 is a general purpose high performance polyurethane dispersant. It can effectively disperse various pigments in various resin systems.Can be used to prepare pigment concentrated pulp. Environmentally friendly products.
Physical data
1. Effective ingredient: high molecular weight polyurethane
2. Content: 45±2%
3.Solvent: butyl acetate
Product features
1.Environmental protection type dispersion agent, does not contain organic tin, benzene .
2.Strong versatility, have good compatibility and viscosity reduction effect in all kinds of resin systems . 3.Good dispersion for organic, inorganic pigments and high pigment carbon black , can effectively improve the color display power, color slurry storage stability is good, color mixing is not easy to float color.
4.Can be used for grinding universal color paste.
Application test
We tested the dispersion performance of this series of products (KEPERDISP-6463/639/635, B-163, etc.) in hydroxy-acrylic acid systems.
Our dispersed pigments:Phthalein blue
Test and comparison items: dispersion efficiency, viscosity, color rendreing, transparency, anti-flocculation ability, storage stability.
Test results:
1.Dispersion efficiency
Dispersion equipment: sand mill，Dispersion fineness: 5 µ
Dispersion time to fineness: All reached the grinding fineness in 2 hours.
2.Viscosity:Detailed data are shown in the table below. The viscosity reduction effect of 6468 is slightly better, while the others are close.
3.Storage stability:After 15 days of sealed storage in 50℃, the fineness of grinding pastes did not change. The increase in viscosity is similar.
|
B-163 |
6468 |
639 |
635 |
||
|
Fineness（µm） |
5µm |
5µm |
5µm |
5µm |
|
|
Viscosity（mPa.s） |
6rpm |
11800 |
11300 |
12200 |
12500 |
|
12rpm |
7550 |
7300 |
8100 |
8150 |
|
|
30rpm |
3980 |
3900 |
4420 |
4400 |
|
|
60rpm |
2320 |
2290 |
2520 |
2530 |
|
The test results show that the comprehensive properties of KEPERDISP®-6468 is very close to B-163 in hydroxy-acrylic acid systems. The viscosity reduction ability and the color development performance of 6468 is better.Please contact us for a detailed test report.
Additive amount
For the total amount of titanium dioxide: 1-5%
For the total amount of inorganic pigments: 2-15%
For the total amount of organic pigments: 30-60%
For the total amount of carbon black 30-150%
The best dosage needs to be obtained through testing
Application field
Dispersing inorganic, organic pigments and carbon black in solvent resin systems, can prepare universal colorants.
Shelf life and packaging
1. The shelf life is two years, starting from the date of production.When stored, the container should be sealed well, and the temperature should be between 0-40℃
Packaging: 25KG/180 KG ,Iron bucke