What is potassium titanate fiber TISMO?
TISMO was developed in 1979. Potassium titanate fiber is expressed by the chemical formulas K2Ti8O17 and K2Ti6O13. It has an extremely fine shape with a fiber length of 10 to 20 µm and fiber diameter of 0.3 to 0.6 µm.
TISMO has high strength, stiffness, and aspect ratio characteristics. It is used in a wide range of applications and fields such as reinforcement materials for plastics, friction modifiers for automotive brakes, and precision filters.
TISMO has micro-sized reinforcement characteristics.
The average fiber length of TISMO-D and the diameter of spun fibers (glass fibers, carbon fibers, etc.) are roughly equal, their cross-sectional areas being about 1/500. Consequently, reinforcement performance at the micro-size level is a key feature of TISMO.
General Properties
Products
|
TISMO-D
|
TISMO-N
|
Chemical composition
|
-
|
K2O・8TiO2
|
K2O・6TiO2
|
Color and shape
|
-
|
White needlelike crystal |
White needlelike crystal |
Diameter
|
µm
|
0.3~0.6 |
0.3~0.6 |
Length
|
µm
|
10~20 |
10~20 |
Specific gravity
|
g/cm3
|
3.3~3.4 |
3.3~3.4 |
Water content
|
%
|
<0.7 |
<0.7 |
pH (in water)
|
-
|
9~10 |
7~8 |
Melting point
|
℃
|
1,300~1,350 |
1,300~1,350 |
Moh's hardness*
|
—
|
4 |
4 |
Tensile strength*
|
GPa
|
7 |
7 |
Tensile modulus*
|
GPa
|
280 |
280 |
Electric resistance*
|
Ω・cm
|
3.3×1015
|
3.3×1015
|
*Figures are quoted frome related literatrures.
POTICON is a composite material produced by blending plastics with TISMO.
Type
|
Potassium titanate fiber
|
PAN type carbon fibers
|
Glass fiber
|
Tismo D
|
High strength
|
High medulus grade
|
E-Glass
|
Chemical composition |
K2O・8TiO2 |
Graphite |
Graphite |
— |
Color and shape |
White Fiber |
Long Black Fiber |
Long Black Fiber |
Transparent Long Fiber |
Length |
10~20µm |
— |
— |
— |
Diameter |
0.3~0.6µm |
7~9µm |
7~9µm |
9~13µm |
Specific gravity |
3.3~3.4 |
1.7 |
1.8 |
2.6 |
pH (in water) |
8~9 |
— |
— |
— |
Melting point |
1,300~1,350℃ |
— |
— |
800℃(Softening) |
Tensile strength |
7GPa* |
3.1GPa |
2.5GPa |
2.7GPa |
Elongation |
0.60%* |
1.30% |
0.60% |
4.00% |
Tensile modulus |
280GPa* |
230GPa |
400GPa |
70GPa |
Moh's hardness |
4 |
5~6 |
5~6 |
6~7 |
*Figures are quoted frome related literatrures.
Development of POTICON Resin Compound