|
| ■features |
|
- Excellent in economy as compared with the conventional whisker.
- As being whisker-shaped,strength and elastic moulus are enhanced. Because of a fine shape,
orientation rarely take place in molded articles to thus impart isotropy.
- As being fine shape,extremely smooth surface of molded articles is achieved.
- Excellent in alkaliproof
- Index refraction is 1.53 and 1.68 which close to that of resins.
|
|
| ■Characteristic table |
|
| Item |
Unit |
WHISCAL A |
| Color,Form |
|
White color needle crystal |
| Whiteness |
|
98 |
| Average fiber length |
μｍ |
20～30 |
| Average fiber diameter |
μｍ |
0.5～1.0 |
| Density |
g/ml |
2.8 |
| Apparent dencity |
g/ml |
0.1 |
| Specific surface area |
m2/g |
7.0 |
| Moisture |
％ |
0.3 |
| Mohs Hardness dencity |
|
3.5～4.0 |
| pH |
|
8.3～10.3(10% Water suspension) |
| Transition temperature |
℃ |
450(aragonite→calcite) |
| Decomposition temperature |
℃ |
900(CaO3→CaO+CO2) |
| Coefficient of linear expansion |
deg-1 |
5～26×10-6 |
| Specific heat |
|
0.20(18℃) |
| Ｉｎｄｅｘ of refraction |
|
1.530(c direction),1.681(a direction),1.685(b direction) |
|
|
| ■Blending examples with plastics |
|
| Matrix resin |
Blending amount of WHISCAL A |
Tensile test |
Bending test |
| Strength |
Elongation |
Strength |
Elastic modulus |
| PBT |
0 |
0.55 |
13.9 |
0.83 |
24.6 |
| 30 |
0.64 |
1.8 |
1.04 |
52.8 |
| PA-6 |
0 |
0.74 |
- |
1.02 |
27.0 |
| 30 |
1.08 |
4.0 |
1.70 |
76.4 |
|
| *The above values are not guaranteed ones,but central ones. |
|
※Notice in handling
Please be careful enough not to absorb by wearing a mask,etc.,during the opration. |
