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PTFE, PolyTetraFluoroEthylene
Made in China

Chinese Version
 
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Rimpex Rubber supplies PTFE, PolyTetraFluoroEthylene from China.

PTFE Series
---PTFE Dispersion Resin F-206 (For Paste Extrusion)
---PTFE Dispersion Resin F-218 (For Paste Extrusion)
---PTFE SM021 Fine Powder (For Moulding)-Equivalent to Dupont T-7A
---PTFE SM031 Fine Powder (For Moulding)-Equivalent to Dupont T-7
---Polytetrafluoroethylene (PTFE) Emulsion SFN-1-Equivalent to Dupont T-30
---PVDF Resins
---Brief of PTFE Plate
---PTFE M021 Molding Powders as Fine Powders
---PTFE M031 Molding Powders for General Products
---PTFE M12, 16, 21 Molding Powders for Large-Sized Products
 

PTFE Dispersion Resin F-206
(for paste extrusion)

1.Molecular formula:

[CF2--CF2]n

2.Properties and Applications

In addtion to all excellent properties of PTFE material, F-206, the PTFE suspension resin has outstanding performance in paste extrusion to manufacture sealing tape, etc..The resin are processed by mixing them with some organic solvents, 100# aero kerosene for example, to obtain paste which are made into coherent, smooth and flat semifinished products after ram extrusion.Druing this progression the extruding pressure remains steady.The semifinished products are further processed to produce unsintered tape by calendering, enlongating and removing solvent with heat.
Normally 4 diameters are set for F-206 extruded straps: 5.0mm, 4.5mm, 3.2mm, 2.8mm.

3.Specification :

GRADE
F-206
Extrudation Apprance Straightness, Smoothing, Continuous
Apparent Density 360-400 g/l
Average Particles Size 700±80 um
R.R'/400 Extrusion Pressure 12.0-18.5 MPa(14.5-16.0 MPa is recommended)
Tensile Strength No Less Than 18 MPa
Elongation No Less Than 330%
Moisture Content No More Than 0.04%
Melting Point 327℃±2℃
Heat Instability Index No More Than 50
Main Applications Non-cutting apart oil-free unsintered tape
Tape Width
12 mm
15 mm
20 mm
25 mm
Tape Density 2.17-2.19

4.Processing of the oil-free unsintered tape

---Solvent: Aero Kerosene 100#---Amount of slvent used : 20.1-20.6 g per 100g resin . 20.7-20.8 g per 100g resin is recommended.---Temperature and time for solvent infiltration before extrusion : 8-10 hr at 45℃-55℃
---Ram extrusion temperature: 50℃-60℃
---Calendering temperature : 60℃±10℃
---Oil removing temperature (for drying) : 200℃±10℃
---Elongating temperature : 285℃±15℃
---Tape thickness could be reached : 0.070±0.005 mm

5.Package and storage

---To pack 25 kg in ployethylene plastic bag in hard paper drum---To stamp confirmation certification, clear and tightness mark o the outside surface of drum.---To store in clean, cool, dry warehouse.---Shelf time is 3 years since date of production.

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PTFE Dispersion Resin F-218
(for paste extrusion)

1. Molecular formula:

[CF2--CF2]n

2. Properties and Applications

In addition to all excellent properties of PTFE material, F-218, the PTFE suspension resin has outstanding performance in paste extrusion to manufacture sealing tape, etc..The resins are processed by mixing them with some organic solvents to obtain paste which are made into coherent, smooth and flat semi-finished products after ram extrusion.During this progression the extruding pressure remains steady.The semi-finished products can be further processed to produce unsintered tape by calendering, enlongating and removing solvent with heat, and also to manufacture sintered coherent thin-walled tubing, continuous long rod, and wire & cable coating, etc..

3. Specification:

GRADE
F-218
Extrudation Apprance Straightness, Smoothing, Continuous
Apparent Density 380-415 g/l
Average Particles Size 650-750 um
R. R'/400 Extrusion Pressure 20.5-24.5 MPa(21.5-24.0 MPa is recommended)
Tensile Strength No Less Than 28 MPa
Elongation No Less Than 350%
Moisture Content No More Than 0.04%
Melting Point 327+/-2℃
Heat Instability Index No More Than 50
Main Applications Oil-free unsintered broad tape for cutting apart
Tape Width Could reach 250mm or more
Tape Density 2.18±0.01

4. Processing of oil-free unsintered broad tape

---Solvent: Aero Kerosene
---Amount of solvent used:-20.6 g per 100g resin 20.3-20.4 g per 100g resin is recommended
---Temperate and time for solvent infiltration before extrusion : 8-10 hr. at 45-55℃
---Ram extrusion temp: 50℃-60℃
---Calendering temp: 60±10℃
---Oil removing temperature (for drying) : 200±10℃
---Elongating temp: 285±15℃
---Tape thickness could be reached: 0.060±0.005 mm

5. Package and storage

---To pack 25 kg in ployethylene plastic bag in hard paper drum
---To stamp confirmation certification, clear and tightness mark o the outside surface of drums.
---To store in clan, cool, dry warehouse.
---Shelf time is 3 years since date of production.

PTFE Resin F-206 for narrower width tape (12mm, 15mm, 20mm, 25mm )

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PTFE SM021 Fine Powder
(for moulding)
(Equivalent to Dupont T-7A)

1.Properties:

Excellent chemical inertness;
Outstanding resistance to chemical corrosion, such as strong acid, alkali, strong oxidant, etc;
Exceptional resistance to high, low temperature, and to abrasion;
Can be used at temperature range from -200℃-250℃ for long period;
Superior electric insulation, which is not affected by temperature and frequency;
Non-adhesive to all other materials;
Non-absorption of water;
Flame-retardation.

2.Applications:

Could be mixed with fillers such as graphite, glassfibre, silica dioxide, molybdenuym disulfide, bronze powder etc. to make filled articles.
Processed into pipes, sheets, rods, films, other articles and parts such as bearing, washer, piston ring and bridge slide, etc.;
Widely used in electrical, electronic, chemicals, aircraft, machine and national defense industries.

3.Specification:

Item
SM021-1
SM021-H
Tensile Strength ≥27.4 MPa ≥25.5 MPa
Elongation ≥300% ≥280%
Apparent Density 300-450 g/l 300-450 g/l
Remainder on 65um sieve (particle size) ≤15% ≤15%
Moisture Content ≤0.04% ≤0.04%
Melting Point 322℃-332℃ 322℃-332℃
Standard Specific Gravity 2.13-2.19 2.13-2.19
Heat Instability Index ≤50 ≤50

4.Package, Storage and Transportation:

To pack into two layers clean plastic bags in a hard paper drum containing 25 kilogram .
To stamp the product's conformity certificate, clear brand and the date of production on the outside of drums.
To store in clean, cool, dry warehouse.
The shelf life is about 3 years.

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SM031 PTFE Powder
(for Moulding )
(Equivalent to DuPont T-7)

1.Properties:

The product is made of tetrafluoroethylene by the way of suspending.
Excellent chemical inertness;
Outstanding resistance to chemical corrosion, such as strong acid, alkali, strong oxidant, etc;
Exceptional resistance to high, low temperature, and to abrasion;
Can be used at temperature range from -200℃-250℃ for long period;
Superior electric insulation, which is not affected by temperature and frequency;
Non-adhesive to all other materials;
Non-absorption of water;
Flame-retardation.

2.Applications:

Resistance to corrosion in chemical industry and producing wire in electrical and electronic industry, the insulating of cable, the mould release of food industry, anti-sticking roller in textile industry.
Procceded into pipes, sheets, rods, films, other articles and parts such as bearing, washer, piston ring and bridge slide, etc.;
Widely used in electrical, electronic, chemicals, aircraft, machine and national defense industries.

3.Specification:

Item
SM031-1
SM031-2
Impurify Level white, uniform, no impurify, no obvious color difference on the cross section of rod (D=57) uniform, with no metal impurify, impurify no bigger than 1mm is no more than 2
Tensile Strength ≥25.5MPa ≥22.5MPa
Elongation ≥250% ≥250%
Apparent Density 400-600 g/l 400-600 g/l
Average Particle Size 100-260 um 100-260 um
Moisture Content ≤0.04% ≤0.04%
Melting Point 322℃-332℃ 322℃-332℃
Standard Specific Gravity 2.13-2.18 2.13-2.18
Heat Instability Index ≤50 ≤50
Dielectric Strength ≥60 KV/mm ≥60 KV/mm

4.Package, Storage and Transportation

Packed in cleaning two layers plastic bags in hard drums.Every drum contains 25 kilogram, and the outside of drum should have the product's conformity certificate, clear brand.Besides, it should be stored in clean, cool, dry warehouse, and the shelf life is about 3 years.

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Polytetrafluoroethylene (PTFE) Emulsion SFN-1
(Equivalent of Dupont T-30) 


1. Molecular Structure:

-(-CF2-CF2-)n-

2.Properties of the emulsion:

· With polymer solid content 60%(w/w), the mean particle size of the colloidal PTFE dispersion particles is 0.05-0.5 micron.
· With high stability against coagulation.
· Nontoxic at room temperature.
· Excellent chemical inertness, outstanding resistance to chemical corrosion, such as strong acid, alkali, strong oxidant, etc.
· Outstanding resistance to heat, low temperature and abrasion.
· Can be used at temperature range from -200℃-250℃ for long time.
· Excellent electric insulation property, which is not affected by temperature and frequency.
· Non-adhesive.
· No absorption of water.
· Flame-retardation, etc.

3.Main Application:

· Directly used in impregnating porous materials, such as asbestos, glass fiber, metal, ceramics and electric carbon as anti-corrosion, sealing, antifriction and lubricating materials.
· Can used as protection layer by spraying or brushing on many kinds of metal or non-metal matrixes.
· Can be directly used in PTFE spinning and cast molding film.
· Wildly applied in national defence industries, rubber, electrical and electric industries, etc.

4.Specification:

· Appearance: Milky white emulsion
· Solid content: 60%±2
· S.S.G. :2.15-2.27
· Viscosity: 6-14 mm2/s (25℃ )
· Melting point: 317℃-337℃.
· Particle size: 0.1-0.3 micron
· PH value :8-10

5.Direction:

· Its concentration, viscosity, or PH value could be adjusted by adding thickening agent, ironless water, surfactant, organic acid or aqua ammonia, etc.into the emulsion.

6. Package, storage and transportation

· To pack 30kg in dry and clean plastic drum with both inner and outside covers.
· To keep the container tight in order to prevent the emulsion volatilizing.
· To stamp confirmation certification, clear and tightness mark.
· To store at temperature 10℃-25℃ and keep away from sunlight.The emulsion would coagulate and become useless if the temperature is bellow 0℃.
· To avoid violence vibration and high temperature.

7. Usage:

· Impregnating, coating or spinning.

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PVDF RESINS

1.Molecular Formula:

[CH2--CF2]n

2.Properties:

PVDF namely Polyvinylidene fluoride is a kind of crystal polymer with low melting point(160-170), high mechanical properties, good resistance to wear, to high temperature, to corrosion, to weather and as well with good electric insulation, high dielectric constant.Also it is anti-ultraviolet ray, anti-radiation and easily machined.With low processing temperature and good melting flow, it could be processed easily to make pipe, plate, rod, film and fiber.Its heat conductivity is poor.

3.Usage:

Used as good anti-corrosion material in chemical industry, especially in the circumstances of acid, organic solvents, halogens, as well as their mixture.Widely used as insulation material in electronic/electric industries, computer industry, air/space industry to make cable sheathing, coating layer, and condenser film, etc.

4.Specifications:

ITEM
PROPERTIES
VALUE
1
SPECIFIC GRAVITY 1.76 +/- 0.03
2
TENSILE STRENGTH No less than 39 MPa
3
ELONGATION AT BREAK No less than 100 %
4
DIELECTRIC CONSTANT (106HZ) No less than 6
5
DIELECTRIC FACTOR (106HZ) No more than 0.8
6
VOLUME RESISTANCE No less than 5X1011 ohm-cm

Note: The specification above is negotiable to fit customers special requirements.

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Brief of PTFE Plate

The PTFE plate is ideal for many machined parts.It can be cut into blocks or strips for fabricating into casings, housings or components for the electrical, chemical processing and various mechanical fabrication industries.PTFE is impervious to virtually all corrosives, its dielectric properties are extraordinarily high, and it has an extremely low coefficient of friction.PTFE will perform in environments from -350 degrees F to over 500 degrees F.Virgin PTFE is FDA approved for use in food processing equipment.
Virtually all processing equipment that conveys parts or assemblies through high heat zones uses PTFE.PTFE costs less than some metals, and will perform better with less maintenance and downtime when special fillers are added.
Plate is available in thickness from 4 mm to 30mm, and in standard square sizes (120, 160, 200, 250, 300, 400 and 450 mm square). Special sizes can be made to order, up to 100mm thick.Large diameter (520-1350mm) circular plates can be made. PTFE can be filled with materials like ekonol, glass fiber, molybdenum disulfide, carbon and bronze to increase hardness and change its properties for applications like bridge slides, brake linings and bearing pads.

Three main types of PTFE plates include:

* Molded PTFE Rectangular Plate I (Standard Size)
* Molded PTFE Rectangular Plate II (Large Size)
* Molded PTFE Circular Plate

Appendix: Properties of two grade of PTFE plate

Item
Index
SFB-1
SFB-2
Specific Gravity 2.10-2.30 2.10-2.30
Tensile Strength, MPa≥ 18.0 15.0
Elongation %≥ 150 150
Puncture Voltage (AC) KV 10 ---
Appearance With clean surface and even texture; No cracks, bubbles and layers divided; No defect like obvious mechanical damages and tool marks. With clean surface and even texture; No cracks, bubbles and layers divided; No defect like obvious mechanical damage and tool marks.
Impurities Metal Impurities Not permitted. No more than 1 impurity sized Φ0.5mm on every 100×100mm2 square.
- Nonmetal Impurities No more than 1 impurity sized Φ0.1-0.5mm and 1 impurity sized Φ0.5-2mm on every 100×100mm2 square. No more than 3 impurities sized Φ0.5-1mm and 1 impurity sized Φ2-3mm on every 100×100mm2 square
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PTFE Molding Powders as Fine Powders

Item
M021-DJX
For Large Articles
M021-DBX
For Large Boards
M021-XJX
For Small Articles
M021-TCX
A
B
A
B
A
B
A
B
Tensile Strenth
Mpa ≥
32.0
30.0
27.4
25.5
Elongation at Break
% ≥
350
300
300
280
Volume Density
345-440
345-440
345-440
345-440
Average Particle Size
um
20-40
40-70
20-40
40-70
20-40
40-70
20-40
40-70
Heat Loss Weight
% ≤
0.04
0.05
0.06
0.07
Shrink Rate
% ≤
4.0
4.5
50
---
Expand Rate
% ≤
8.0
8.0

9.0

---
Molecule Weight
x106
---
---
---
---

· PTFE Molding Powders as fine powders Excellent chemical inertness;
· Outstanding resistance to chemical corrosion, such as strong acid, alkali, strong oxidant, etc;
· Exceptional resistance to high, low temperature, and to abrasion;
· Can be used at temperature range from -200℃-250℃ for long period;
· Superior electric insulation, which is not affected by temperature and frequency;
· Non-adhesive to all other materials;
· Non-absorption of water;
· Flame-retardation.

Applications:

· Proceeded into many kinds of plates and other articles and parts such as bearing, washer, piston ring and bridge slide, etc.;
· Widely used in electrical, electronic, chemicals, aircraft, machine and national defense industries.

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PTFE Molding Powders for General Products

Item
M031-S
M031-Y
M031-1
A
B
A
B
A
B
Appearance
Purity
Its plate is with white surface and even texture.
No impurity is permitted.
No obvious color difference on the cross section of rods (diameter 57mm)
Its plate is with white surface and even texture.
No impurity is permitt
Tensile Strenth
Mpa ≥
33.0
30.0
25.5
Elongation at Break
% ≥
350
300
250
Volume Density
420±60
420±60
420±60
Average ParticleSize
μm
110±20
80±10
110±20
80±10 110±20 80±10
Heat loss Weight
% ≤
0.04
0.04
0.04
Melting Point
327±5
327±5
327±5
Standard Density
2.13-2.19
2.13-2.19
2.13-2.18
Heat Instability Index
50
50
50

Properties:

· Excellent chemical inertness;
· Outstanding resistance to chemical corrosion, such as strong acid, alkali, strong oxidant, etc;
· Exceptional resistance to high, low temperature, and to abrasion;
· Can be used at temperature range from -200-250°C for long period;
· Superior electric insulation, which is not affected by temperature and frequency;
· Non-adhesive to all other materials;
· Non-absorption of water;
· Flame-retardation.

Applications:

· Proceeded into pipes, sheets, rods, films, other articles and parts such as bearing, washer, piston ring and bridge slide, etc.;
· Widely used in electrical, electronic, chemicals, aircraft, machine and national defense industries.

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PTFE Molding Powders for Large-Sized Products

Item
M12
M16
M21-D
M21-H
M21-1
Appearance
Purity
See Sheet 2
Tensile Strenth
MPa ≥
36.0
33.0
34.0
32.0
27.4
Elongation at Break
% ≥
330
330
330
300
300
Volume Density
375±30
375±30
400±40
400±40
400±40
Average Particle Size
μm
25±10
25±10
50±20
50±20
50±20
Water Content
% ≤
0.04
0.04
0.04
0.04
0.04
Melting Point
327±5
327±5
327±5
327±5
327±5
Standard Density
2.13-2.19
2.13-2.19
2.13-2.19
2.13-2.19
2.13-2.19
Heat Instability Index
50
50
50
50
50

 

Item
Appearance and Purity
M12
Its plate is with white surface and even texture.
No impurity is permitted.
No obvious color different on the cross section of rods (diameter 57mm).
M16
Its plate is with clean surface and even texture.
No metal impurity is permitted.
The impurities should be no more than 2 and their size should be no more than 1mm.
M21-D
Its plate is with clean surface and even texture.
No metal impurity is permitted.
The impurities should be no more than 2 and their sizes should be no more than 1mm.
M21-H
Its plate is with clean surface and even texture.
The impurities should be no more than 4, among which the impurities sized 0.5-2mm should be no more than 2.
M21-1
Its plate is with clean surface and even texture.
The impurities should be no more than 6, among which the impurities sized 0.5-2mm should be no more than 2 and 2-3mm should be no more than 1.

Properties:
Excellent Chemical Inertness;

· Outstanding resistance to chemical corrosion, such as strong acid, alkali, strong oxidant, etc;
· Exceptional resistance to high, low temperature, and to abrasion;
· Can be used at temperature range from -200℃-250℃ for long period;
· Superior electric insulation, which is not affected by temperature and frequency;
· Non-adhesive to all other materials;
· Non-absorption of water;
· Flame-retardation.

Applications:

· Could be mixed with fillers such as graphite, glass-fibre, silica dioxide, molybdenuym disulfide, bronze powder etc. to make filled articles.
· Proceeded into pipes, sheets, rods, films, other articles and parts such as bearing, washer, piston ring and bridge slide, etc.;
· Widely used in electrical, electronic, chemicals, aircraft, machine and national defense industries.

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