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APPLICATION OF PHOSPHORESCENT PIGMENTS TO
PLASTICS
.......Phosphorescent
pigment can be mixed with resins such as PE, PP, ABS, PVC, etc, and molded into
variety of luminous plastic granules. Varieties of plastic products could be
extruded, injected and blown molding. Mixed with photoluminescent pigment,
resins and additives can be molded into luminous films and imitation leathers.
The expenditure of photoluminescent pigment ranges around 20-50 percent(wt).
The lifetime of the plastic would not be shortened due to adding the pigment.
When photoluminescent pigment is used, both additive with Pb and mould made of
Cu can't be used, or they'll damage the pigment.
EXAMPLE 1:
| Compatibility of
luminous plastic granule |
| Compatibility |
Content |
| Resin |
100 |
| Pigment |
25 |
| Wax |
suitable |
| Luminous plastic physical
characteristics index number |
|
Item --
Luminous plastic granule |
execute standard |
|
PPG-20 |
PEG-20 |
ABSG-20 |
|
| Density (g/cm3) |
1.055 |
1.099 |
1.190 |
GB1033-86(A) |
| Water and
volatile |
0.0184 |
0.142 |
0.351 |
QB1126-91 |
| Melt flowing
speed |
2.63 |
2.19 |
1.83 (g/10min) |
GB3682-83 (88) |
| Brightness to luminous
plastic granule |
| Plastic/time |
1 minute |
5 minutes |
10 minutes |
| PEG-20 |
0.769 |
0.218 |
0.115 |
| ABSG-20 |
0.510 |
0.246 |
0.076 |
| PPG-20 |
0.725 |
0.208 |
0.110 |
EXAMPLE 2:
| Compatibility of
extruding luminous plastic of ABS |
| Composition |
content |
| ABS |
100 |
| DLTP |
0.6 |
| ABSG-20 |
25 |
| Oxygen-resistant agent |
0.6 |
EXAMPLE 3:
| Compatibility
and technology of luminous polyethylene bottle by vacuumize
molding |
| Composition |
content |
| LDPE |
70 |
| HDPE |
30 |
| LDPEG-20 |
25 |
| Wax |
suitable |
| Technology
process |
| Extruding melt's
temperature |
170C |
| Compression ratio of
screw |
3.2:1 |
| Air pressure of
blowing |
5.4x10Pa |
| Molding temperature |
60 |
EXAMPLE 4:
| Compatibility of
luminous imitation leather made of suspensible PVC |
| Composition |
content |
| PVC(suspensible) |
100 |
| DOP |
50 |
| DBP |
40 |
| DOS |
10 |
| Epoxidized soyabean
oil |
0.5 |
| Bast |
0.75 |
| Dibutyltin dilaurate |
1.0 |
| Phosphorescent pigment |
88 |
EXAMPLE 5:
| Compatibility of
luminous film |
| Composition |
content |
| PVC |
100 |
| DOP |
33 |
| Oilized sulfbenzeneate
(T-50) |
10 |
| Octa epoxidized
octadecanoate |
3 |
| Wax chloride |
10 |
| Benzene di-sio-oct
phosphite |
0.5 |
| Bast |
1.0 |
| UV absorbent |
0.3 |
| Hst |
0.3 |
| Phosphorescent pigment |
68 |
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