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Identification & Functionality
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- Chemical Family
- Polymer Name
- Plastics & Elastomers Functions
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Features & Benefits
Applications & Uses
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- Plastics & Elastomers End Uses
- Plastics & Elastomers Processing Methods
- End Uses
Fluon CD123E and CD127E are high extrusion pressure polymers which have been designed for paste extrusion at low to medium reduction ratio into tubes including pipe liners. Their excellent stability makes them ideally suited to the long sintering cycles needed when making thick section tubes for pipe liners.
CD123E has higher extrusion pressure and may be used at reduction ratios from 15 to 300:1. CD127E may be used at higher reduction ratios than CD123E. CD123E is also suited to the manufacture of electrical tapes of good tensile strength and good thermal stability.
Properties
- Physical Form
- Typical Properties
Value Units Test Method / Conditions Bulk Density 545 kg / m³ FTM 126 Extrusion Pressure (at Reduction Ratio 400:1, 1.59 mm Die) 45 Mpa FTM 19a Mean Particle Size 475 microns FTM 125 Moisture (Weight loss) max. 0.05 % FTM 140 Moisture Content (Desiccant Pack Weight Increase 3 Days After Packing) max. 6 g FTM 121 Reduction Ratio Range 15 - 300 - - SSG 2.16 - FTM 128 - Electrical Tape Production
The following conditions can be used to make normal density tapes from CD123E by extruding a rod or tape and then calendering.
Lubrication/Preforming
Machine
20 te Havelock
Polymer
CD123
Lubricant
18% odorless kerosene
Conditioning time/temperature
24 hr/25ºC
Preform pressure
350 psi
Extrusion
Rod
Tape
Extrusion cylinder
1.625 in
1.625 in
Die diameter
0.24 in
(0.35) in
Die angle
20º
-
Die temp
30ºC
25ºC
Reduction ratio
46:1
22:1
Ram speed
30 mm/min
30 mm/min
Extrusion pressure
2.8 MPa
6.0 MPa (CD123)
Calendering
Rod
Tape
Storage of extrudate (kerosene in container)
25ºC
25ºC
Calender bowl diameter
10 in
10 in
Calender bowl temperature
30ºC
30ºC
Calendering speed
10 rpm
8 rpm
Tape thickness
0.006 in (0.15 mm)
0.006 in (0.15 mm)
Drying
Rod
Tape
Temperature
110ºC
110ºC
Pressure
Vacuum
Vacuum
Tapes made under these conditions have a tensile strength of 7-9 MPa and elongation to break of 200%.
- Tubing
The following conditions can be used to make tubing from CD123E on a vertical ram extruder with in-line drying and sintering followed by air quenching.
24 mm Tube
42 mm Tube
Machine
150 te Havelock
150 te Havelock
Lubricant (VM&P Naphtha)
17%
17%
Conditioning time/temperature
24 hr/25ºC
24 hr/25ºC
Preform pressure
500 lb/in2
500 lb/in2
Extrusion cylinder
4.5 in
4.5 in
Mandrel diameter
0.75 in
1.5 in
Die diameter
0.9415 in
1.74 in
Die angle
30º
60 º
Core pin diameter
0.74 in
1.65 in
Reduction ratio
60:1
60:1
Extrusion rate (tube speed )
0.15 m/min
0.5m/min
Extrusion pressure
8 MPa
17 MPa
Drying oven temperature
120ºC
120ºC
Drying oven length
3.2 meters
3.2 meters
Residence time
21 min
6.4 min
Sintering oven temperature
450ºC
450ºC
Sintering oven length
1.5 meters
1.5 meters
Residence time
10 min
3 min
Tubes made under these conditions have a smooth surface finish and are white in color.
Regulatory & Compliance
- Disposal
Waste polymer should be disposed of by landfill in accordance with any local regulations for the disposal of products of low toxicity or may be incinerated under approved controlled conditions.
- Food Contact Approval
Information on food contact approval is available from AGC Chemicals Europe, Ltd sales office.
Technical Details & Test Data
- Processing
Fluon CD123E and CD127E can be processed by paste extrusion of a lubricated mix followed by drying and sintering. Further information on these techniques may be found in Technical Service Note F3/4/5, "The processing of Fluon PTFE coagulated dispersion powders".
This information sheet contains typical property data which should not be used for specification purposes.
Packaging & Availability
- Packaging Type
- Packaging
Fluon CD123E and CD127E are packed in plastic kegs with plastic lids containing 25 kg.
Storage & Handling
- Storage and Handling
Fluon CD123E should be stored in clean dry conditions at 15ºC - 18ºC to ensure they do not become compacted and remain easy to sieve.
The lubricated mixes of powder should be stored at 25ºC for 24 hours before use in air tight containers to ensure that the lubricant is evenly distributed and that the powder will preform and extrude uniformly.