1. Photoluminescent
pigment used in plastics
Photo luminescent pigments mixed with a
variety of resins made from plastic pellets, such as: PE, PP, ABS, PVC, etc.,
by extrusion, injection molding, blow molding, vacuum forming and other methods
to produce a wide variety of plastic products.
Luminous in the injection molding process
more prone to "black", if controlled by the following precautions,
you can greatly reduce the black problems and improve product quality.
Long luminance more "fear" iron,
and iron in the contact process, the luminous powder will be issued Black,
luminous performance degradation, therefore, the entire production process to
reduce the contact time and contact strength powder and iron. Minimize powder
and plastic pellets mixing time, mixing equipment can be modified conditions,
the material and iron are separated, choose a shorter heating cylinder
injection molding machines, injection molding control the temperature and
injection pressure. Specific methods are as follows:
1 recipe areas:
a. Plastics Selection
The best choice of powder, and the melt
index, the higher the better. Because the melt index of the resin is higher,
give full play to the role of light-emitting material.
choose b. glow in the dark powder
With a smaller grain powder of 300 mesh or less glow brightness best.
c.
lubricant selection
Polyester hydrocarbons (such as PE, PP) resin, stearic acid amide
lubricant should be used in an amount of 0.2% of the amount of resin.
ABS, PS, PC, AS, PMMA resin such as stearic acid amide lubricant is
chosen, the amount of the resin amount of 0.5% to 3%, typically 1%.
.
selected dispersant d
Choose powdered PE wax luminescent powder dispersion effect can be
increased to improve the appearance of color products.
. e
coupling of choice:
Prior to joining photoluminescent pigment resin, should be treated with
a coupling agent, and then with resins and additives
Adding and mixing, to enhance the
mechanical properties of the light-emitting plastic products. Titanate coupling
agent, silane coupling agent content of about 1.3% luminous pigment. The amount
of light emission is about 1.5% of pigment.
. f
stabilizers and antioxidants selection:
The polyolefin-based resin may be added 0.6% of an antioxidant, and
AT168 and AT1010 antioxidant such synergy. For the ABS resin may also be
appropriate to add an antioxidant, the addition amount may be less than 0.6%.
2 workmanship:
a.
aspect ratio smaller devices should be used, if the device can not change, may
be appropriate to raise the temperature of the host feed zone and transport
segments (2-3 degrees can).
b.
hosts speed should be higher than under normal conditions of high speed 15-20%,
in order to improve the operating speed of the material.
c.
When premixed materials, do not let the glow in the dark powder mixing machine
at high or high mixing machine by any strong shear and friction. At the same
time, try to use ceramic or plastic container when mixing. And try to shorten
the mixing time, the general glow powder into the barrel after a stirring time
can not be more than two minutes.
d.
the production of which should always clean the barrel spout and injection
molding machines junction, to prevent precipitation luminous stick friction
materials in drums and black.
2. photoluminescent pigment http://www.photoluminescentcn.com
in the application of
coatings and inks
May be mixed with a variety of transparent
resin coatings and ink to make the glow in dark paint or inks. Such resins
include acrylic resins, urethane resins, epoxy resins, amino resins, polyvinyl
butyral resins, polyamide resins, etc., in coatings used in a proportion of 10%
-50%, the proportion of the ink is 30% to 60% as well, the above-mentioned
resin is dissolved with an appropriate solvent, adding luminescent pigment, and
then adding a suitable anti-settling agents, antifoaming agents, dispersant
mixed with a high speed mixer evenly but do not use edger grinding to avoid
damage photoluminescent pigment characteristics; If you use sand,
Time is as short as possible, mainly
emitting pigment dispersed.
(1) Example 1
Ingredients% wt
Photoluminescent pigment 35
Acrylic resin 38
Xylene 7
Butyl acetate 8
Defoamers right amount
Dispersant Deuchem R-920 1
Fumed silica 0.8
This formula applies to painted panels,
dials, etc.
(2) Example 2
Ingredients% wt
Photoluminescent pigment 50
Thermosetting acrylic resin 30
Fumed silica 0.8
Dispersant ByK-300 1
Defoamers right amount
3 . Photo luminescent pigments for screen
printing, printing, printing pastes with
Examples of one:% wt
Foam printing paste 60
Bang pulp 20
Fixative 2
Photoluminescent pigment 18
Usage: After mixing, the screen printing,
now with the existing, run out of time (to avoid gel).
Example 2: Dyeing
Bang pulp 50g
1000g of deionized water
Softener 10g
Glow in the dark powder 100g
The fabric is immersed in the solution
dyeing uniformity, dry out the water, gas and iron molding.
All about our products use the
recommendation, whether verbal, written or speculated from our test results,
and are based on our current understanding of the product. Though we have such
a recommendation, the customer or should take appropriate measures to Paul
indeed our products to meet their specific process or purpose. because we can
not control the applications of our products, and process conditions and
process, so we do not take responsibility in this regard. Buyer shall ensure
that the use of our products Large process does not infringe intellectual
property rights of third parties and we guarantee under normal supply and
storage conditions on the quality of our products free of defects.
没有评论:
发表评论