https://www.avient.com/knowledge-base/article/what-s-difference-fillers-reinforcements?ind[]=21508
PCC has fewer impurities than GCC and can be produced in specific particle shapes, narrow particle size distributions, and fine particle sizes.2
Fumed synthetic silica is used for reinforcement and for infrared-light absorption in greenhouse films.2
The filler is also nonabrasive and has a low density.2 Aluminum oxide and nitride are more abrasive.
https://www.avient.com/sites/default/files/2020-09/lubrione-processing-guide.pdf
BASE
RESIN PPA PC PSU PES PPS
CO-
POLYMER
ACETAL
PEEK PA
Barrel Temperatures* °F (°C)
Rear Zone 550–580
(288–305)
520–560
(271–293)
600–640
(316–338)
630–660
(332–338)
550–580
(288–304)
350–370
(177–188)
660–700
(349–371)
440–490
(227–254)
Center Zone 560–600
(293–316)
530–570
(277–299)
620–670
(327–354)
650–680
(343–360)
560–615
(293–324)
380–390
(193–200)
700–730
(371–388)
470–510
(243–266)
Front Zone 580–620
(304–327)
550–580
(288–305)
630–680
(332–360)
670–730
(354–388)
590–630
(310–332)
390–430
(200–221)
720–750
(382–400)
490–540
(254–282)
Nozzle 575–615
(302–324)
550–600
(288–316)
630–680
(332–360)
680–700
(360–371)
600–625
(316–330)
380–415
(193–213)
720–750
(382–400)
520–570
(271–300)
Melt
Temperature
575–615
(302–324)
560–600
(293–316)
625–675
(330–358)
650–710
(343–377)
600–625
(316–330)
370–410
(188–210)
670–740
(354–393)
520–570
(271–300)
Mold
Temperature
250–300
(121–150)
175–240
(80–116)
190–300
(88–150)
225–325
(107–164)
250–325
(121–164)
150–225
(66–107)
290–375
(143–190)
150–200
(66–93)
Pack & Hold
Pressure
50%–75%
of Injection Pressure
Injection
Velocity
in/s
1.0–3.0
Back Pressure
psi 50
Screw Speed
rpm 50–90
Drying
Parameters
°F (°C)
6 hrs @ 175
(80)
4 hrs @ 250
(121)
4 hrs @ 275
(135)
4 hrs @ 300
(150)
4 hrs @ 250
(121)
2 hrs @ 200
(93)
3 hrs @ 300
(150)
4 hrs @ 180
(82)
Allowable
Moisture
%
< 0.05 < 0.02 < 0.02 < 0.04 < 0.02 0.15–0.20 < 0.02 0.10–0.20
Cushion
in 0.125–0.250
Screw
Compression
Ratio
2.5:1–3.5:1 2.0:1–2.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1
Nozzle
Type
General
General
General
General
General
General
General
Reverse
Taper
Clamp
Pressure 5–6 Tons/in2 of projected area of cavities and runner system
* Barrel temperatures should be elevated for compounds designed for electrical insulative properties.
Draft Angle • Maintain a minimum draft angle of 1/2° per side.
https://www.avient.com/sites/default/files/2020-09/edgetek-processing-guide.pdf
Base Resin PPA PC PSU PES PPS
Co-
polymer
Acetal
PEEK PA
Barrel Temperatures* °F (°C)
Rear Zone 550–580
(288–305)
550–590
(288–310)
600–640
(316–338)
630–660
(332–338)
550–580
(288–304)
350–370
(177–188)
660–700
(349–371)
440–490
(227–254)
Center Zone 560–600
(293–316)
570–600
(300–316)
620–670
(327–354)
650–680
(343–360)
560–615
(293–324)
380–390
(193–200)
700–730
(371–388)
470–510
(243–266)
Front Zone 580–620
(304–327)
580–630
(304–322)
630–680
(332–360)
670–730
(354–388)
590–630
(310–332)
390–430
(200–221)
720–750
(382–400)
490–540
(254–282)
Nozzle 575–615
(302–324)
580–630
(304–322)
630–680
(332–360)
680–700
(360–371)
600–625
(316–330)
380–415
(193–213)
720–750
(382–400)
520–570
(271–300)
Melt
Temperature
575–615
(302–324)
580–625
(304–330)
625–675
(330–358)
650–710
(343–377)
600–625
(316–330)
370–410
(188–210)
670–740
(354–393)
520–570
(271–300)
Mold
Temperature
250–300
(121–150)
175–240
(80–116)
190–300
(88–150)
225–325
(107–164)
250–325
(121–164)
190–250
(88–121)
290–375
(143–190)
150–200
(66–93)
Pack & Hold
Pressure
50%–75%
of Injection Pressure
Injection
Velocity
in/s
1.0–3.0
Back Pressure
psi 50
Screw Speed
rpm 50–90
Drying
Parameters
°F (°C)
6 hrs @ 175
(80)
4 hrs @ 250
(121)
4 hrs @ 275
(135)
4 hrs @ 250
(121)
3 hrs @ 300
(150)
2 hrs @ 200
(93)
3 hrs @ 275
(135)
4 hrs @ 180
(82)
Cushion
in 0.125–0.250
Screw
Compression
Ratio
2.5:1–3.5:1 2.0:1–2.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1 2.5:1–3.5:1
Nozzle
Type
General
General
General
General
General
General
General
Reverse
Taper
Clamp
Pressure 5–6 Tons/in2 of projected area of cavities and runner system
* Barrel temperatures should be elevated for compounds designed for electrical insulative properties.
Draft Angle • Maintain a minimum draft angle of 1/2° per side.
https://www.avient.com/sites/default/files/resources/PolyOne%2520India%2520Terms%2520and%2520Conditions%2520of%2520Sale%2520of%2520Products.May%25202016.pdf
Seller
makes no other warranties extending beyond the description of the
Product, whether used alone or in combination with any other substance
or in any process.
2.
Either party may suspend performance hereunder (except to
pay for Product already received) in the event of: (1) acts of God, fire,
explosion, flood, hurricanes; (2) strikes, lockouts or other industrial
disturbances or riots; (3) war, declared or undeclared, or acts of terrorism; (4)
compliance with any Federal, state, provincial, municipal or military law,
regulation, order, or rule, foreign or domestic, including priority, rationing,
allocation or preemption orders or regulations, or cancellation of Seller’s or
Buyer’s license to operate its plant; (5) catastrophic failure of facilities used
to manufacture Product, interruption or shortage of transportation, labor,
power, fuel or raw materials; (6) total or partial shutdown due to Seller’s
normal plant turnaround; or (7) any other cause or causes of any kind or
character reasonably outside the control of the party failing to perform,
whether similar or dissimilar from the enumerated causes (a “force
majeure”).