Measuring speed & weight of the liquid to penetrate
into powder layer. This gives affinity between liquid
& powder;namely, Wettability. It is widely used in
pharmaceutical & chemical industry to evaluate the
surface characteristics between powder material &
various.
Surface Characteristics : Analyzing Wettability
［Peneto Analyzer PNT-N]
PENETO ANALYZER®
Peneto Analyzer PNT-N
HOSOKAWA MICRONNew
Product
SUMMARY
FEATURES- Easy measurement through PC operation
- Precise lifting control of the vessel realizes accurate
measurement
- High repeatability by specially designed cell shape
- Optimal packing (option )
Measuring the penetration speed of liquid into powder layer
gives wettability of powder and contact angle of liquid & powder
.These operation is automated by computer
PRINCIPLE
APPLICATION- Evaluation of affinity (Wettability) between liquid & powder
- Battery material( cathode & anode), paint, pharmaceutical,
cosmetics, food, ceramics, carbon black, silicon nitride,
pigment, dye stuff, ink, toner, magnetics, titanium dioxide,
textile, paper, fibre, porous material, ceramic molded object
- Prediction of dispersibility liquid into powder layer
- Evaluation of fine surface characteristics of particle
Weighing balance
Cell
Liquid Vessel
Lifting device
Cell (plastics)
Porus plate
Sample(Powder)
Filterpaper
Droplet
Solid
Contact angle
URL http://www.hosokawamicron.com
2012HMC ALL Rights Reserved. Printed in Japan Subject to change without notice. All information in this brochure is purely informative and non-binding.
Our quotations are authorative with regard to orders.
Model PNT-N
External dimension W x D x H （mm） 420 x 570 x 510
Weight (kg) ca. 70
Electric supply (V) 100-125/220-240 (Single phase) (50/60Hz)
Accuracy (mg) 1 (0.1 by Option)
Measuring range (g) Max. 300 (including cell and sample)
PC Desktop PC
SPECIFICATION
MEASUREMENT SAMPLEPowder : A, B & C , Liquid : water
The measurements give three different curves Fig.1. Penetration speed coefficient through Washburn’s equation is shown in Fig.2.
Fig.1 Comparison of penetration speed on each samples Fig.2 Gradient gives penetration speed coefficient
WL : liquid penetration weight, t :time, S : cell projection area
e : void ratio, rL : liquid density, r : radius of capillary formed in powder layer
gL : surface tension of liquid, ηL : viscousity of liquid,
q : contact angle between liquid and solid surface
Measurement example for wettability of sheet
Washburn’s equation
Weight (g) - Time (s)Sample A
Sample B
Sample C
Square of Weight (g2) - Time (s)
