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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