Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Plastics & Elastomers Functions
- Technologies
Features & Benefits
- Materials Features
Applications & Uses
- Applications
- Plastics & Elastomers Processing Methods
- End Uses
Fluon® CD141E is a medium extrusion pressure polymer which has been designed for paste extrusion at low to medium reduction ratio into tubes or into rods for subsequent calendering into threadseal tapes.
CD141E is especially suited to the manufacture of low density threadseal tapes. It combines the ease of calendering of CD1 with an improved stretch performance. The tapes produced are more uniform and polymer efficiency is improved compared with CD1.
Properties
- Typical Properties
- Tubing
The following conditions have been used to make tubing from CD141E on a vertical ram extruder. The 12mm tubes were dried and sintered in a batch oven.
12 mm Tube
Polymer
CD141E
Machine
150 te Havelock
Lubricant (VM&P Naphtha)
17.5%
Conditioning time/temperature
24 hr/25ºC
Preform pressure
500 lb/in2
Extrusion cylinder
2.5 in
Mandrel diameter
0.75 in
Die diameter
0.502 in
Die angle
30º
Die temperature
800C
Core pin diameter
0.436 in
Reduction ratio
92:1
Extrusion rate (tube speed )
0.46 m/min
Extrusion pressure
18.5 MPa
Drying:
Drying oven temperature
90ºC
Drying oven length
Batch oven
Residence time
18 hours
Sintering oven temperature
380ºC
Sintering oven length
Batch oven
Residence time
2 hours
Cooling
Air quench
Tube specific gravity
2.139
Tubes made under these conditions had a smooth surface finish and were white in color.
- Tape Making
The following conditions have been used to make normal density tapes from CD141E by extruding a rod and then calendering.
Rod Extrusion
Machine
20 te Havelock
Polymer
CD141E
Lubricant
20% odorless kerosene
Conditioning time/temperature
24 hr/25ºC
Preform pressure
350 lb/in2
Extrusion cylinder
1.625 in
Die diameter
0.24 in
Die angle
20ºC
Die temperature
30ºC
Reduction ratio
46:1
Ram speed
30 mm/min
Extrusion pressure
2.2 MPa
Tape Calendering
The rod from this extrusion was stored at 25ºC in a container including a small amount of kerosene. The rod was calendered using stainless steel bowls of 10 in diameter at 30ºC.
The tape made had the following dimensions and was of good quality:
Maximum width
Minimum thickness
CD141E
50 mm
0.030 mm (0.0012 in)
| Value | Units | Test Method / Conditions | |
| Bulk Density | 520 | kg / m³ | FTM 126 |
| Extrusion Pressure (at Reduction Ratio 400:1, 1.59 mm Die) | 27 | 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 | 25 - 700 | — | — |
| SSG | 2.175 | — | FTM 128 |
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® CD141E can be processed by paste extrusion of a lubricated mix following by drying and sintering. Further information on these techniques may be found in Technical Service Note F3/4/4, "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
- Fluon® CD141E is packed in plastic with plastic lids containing 25 kg.
Storage & Handling
- Storage and Handling
Fluon® CD141E should be stored inclean dry conditions between 15ºC and 18ºC to ensure it does not become compacted and remains 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.