https://www.avient.com/sites/default/files/2024-07/TPE Whitepaper_0.pdf
Thermoplastic Elastomers
How TPEs can help medical and pharmaceutical manufacturers
meet growing global demand
2© 2020 Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012
THE OPPORTUNITY: EFFICIENT
ALTERNATIVES TO VULCANIZED RUBBER
Is there a capacity crunch on the horizon?
Also, energy
and labor savings translate to lower power
consumption and an improved utilization of
staffing.
2.
https://www.avient.com/sites/default/files/2021-11/artisan-ar7300-pre-colored-formulation-processing-guide.pdf
BASE RESIN ABS
Drying Temperature 80–90°C
Drying Time 2–3 Hours
Barrel Temperatures °C
Rear Zone 180–210
Center Zone 190–220
Front Zone 200–230
Nozzle 210–240
Mold Temperature 50–80
Screw Speed Moderate
Back Pressure 3–10 bar
Cushion 5–15 mm
Injection Speed Low to medium
Injection Pressure Moderate to high
Holding Pressure 10–30% of injection pressure
Screw Type General purpose
Screw L/D 20:1
Screw Compression Ratio 2.0:1–2.5:1
Non-return Check Valve Free flow check ring
Nozzle Type Reverse taper
Barrel Capacity 30–80% of barrel should be used
STARTUP & SHUTDOWN RECOMMENDATIONS
Purge Compound
2–3 melt flow PP or purging compound.
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
Purpose
General
Purpose
General
Purpose
General
Purpose
General
Purpose
General
Purpose
General
Purpose
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
Purpose
General
Purpose
General
Purpose
General
Purpose
General
Purpose
General
Purpose
General
Purpose
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”).