poly(chlorotrifluoroethylene)
poly(chlorotrifluoroethylene)
CAS: 9002-83-9
Molecular Formula: C2ClF3
poly(chlorotrifluoroethylene) - Names and Identifiers
poly(chlorotrifluoroethylene) - Physico-chemical Properties
| Molecular Formula | C2ClF3 |
| Molar Mass | 116.4696096 |
| Density | 1 g/mL at 25 °C |
| Melting Point | 210-212 °C |
| Boling Point | 140-190 °C(Press: 1 Torr) |
| Solubility | Acetone (Slightly), Chloroform (Slightly) |
| Appearance | powder |
| Color | Clear Colourless |
| Storage Condition | Hygroscopic, Refrigerator, under inert atmosphere |
| Physical and Chemical Properties | It is a white crystalline solid with a dielectric constant of 10e6Hz of 2.3-2.8 and a dielectric loss tangent of 10e6Hz ≤ 0.01. It has good chemical stability and electrical insulation, corrosion resistance, the service temperature is -50-130 ℃, the maximum long-term service temperature is 125 ℃, and the short-term service temperature is 150 ℃. It can withstand various acids, alkalis, oils and most organic solvents. Its excellent electrical insulation is not affected by temperature and humidity in a higher temperature range; in addition, it also has outstanding air tightness, surface non-stick, high mechanical strength, very low water absorption, etc. Good adhesion to metal and transparent. It can be made into films, pipes, bars, plates, etc., and can also be made into emulsions. |
| Use | Used in the production of engineering Plate, Bar, pipe, corrosion resistant pump, valve parts, can also be made into suspension, used as anti-corrosion, electrical insulation coating and film |
poly(chlorotrifluoroethylene) - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Safety Description | S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| RTECS | MG7104000 |
| Toxicity | LD50 oral in rat: > 9200mg/kg |
poly(chlorotrifluoroethylene) - Upstream Downstream Industry
| Raw Materials | Chlorotrifluoroethylene |
poly(chlorotrifluoroethylene) - Nature
Open Data Verified Data
Polychlorotrifluoroethylene is a crystalline polymer, and the degree of crystallinity varies depending on the heat treatment conditions. The relative density is 2. 07~2.18, glass transition temperature 58 ℃, crystallization melting point 215 ℃, long-term use temperature -50~130 ℃, short-term use temperature 150 ℃, loss-of-strength temperature
(NST) 270 °c. With non-flammability, chemical stability, electrical insulation, aging resistance and radiation resistance (3 × los Gy); Good mechanical properties, tensile strength in 34. 3MPa above, 125 deg C can still have 3. Tensile strength of 63MPa; Has good cold flow resistance, wear resistance (the friction coefficient of steel is 0. 20~0.30) and dimensional stability; High transparency, good processing performance. In addition, it has an important feature of good adhesion with metal.
Last Update：2024-01-02 23:10:35
poly(chlorotrifluoroethylene) - Preparation Method
Open Data Verified Data
in the polymerization reactor, with water as the medium, ammonium persulfate as initiator, sodium sulfite as reducing agent, and add pH buffer, plus chlorotrifluoroethylene, at about 25 ℃ and 0. 49MPa pressure suspension polymerization, polymer by crushing, washing, drying, that is, the product.
Last Update：2022-01-01 11:08:56
poly(chlorotrifluoroethylene) - Use
Open Data Verified Data
can be used as chemical storage tanks, tanks, pumps, valves, anti-corrosion lining of the stirring blade, as well as with thread pipe, pipe fittings, transparent mirror, laboratory ware, etc. It can also be used as wire insulation and cable sheath for electronic and electrical industry, as well as connectors and printed circuit boards used in humid environment. In addition, it can also be used to produce O-ring, low temperature seal, self-lubricating gear, radiation resistant parts and so on. The bar and plate can also be used for cutting and other secondary processing method to obtain high dimensional precision of mechanical parts. Poly (chlorotrifluoroethylene) suspensions can be used to coat metal surfaces as corrosion-resistant and electrically insulating layers. With the preparation of the film, can be used as anti-corrosion medium isolation membrane.
Last Update：2022-01-01 11:08:57
poly(chlorotrifluoroethylene) - Safety
Open Data Verified Data
The inside of the Polychlorotrifluoroethylene resin is a plastic film bag, the outer package is a hard barrel, and the net weight of each barrel is 20kg. This product is transported by non-dangerous goods, and avoid sun and rain during transportation. The storage warehouse should be kept clean, dry and well ventilated. Polychlorotrifluoroethylene suspension shall be packed in sealed plastic barrels with a net content of 2kg, 5kg and 10kg per barrel, and the outer packing of corrugated paper shall be carried as dangerous goods. The storage warehouse is required to be ventilated and dry, and the indoor temperature is 25~35 degrees C, and the fire prevention is required.
Last Update：2022-01-01 11:08:58
poly(chlorotrifluoroethylene) - Molding Process
Open Data Verified Data
- Polychlorotrifluoroethylene can be processed by a molding method of a general thermoplastic. However, since its viscosity in the molten state is still as high as several kilopascals-seconds, it is necessary to have sufficient processing fluidity at a relatively high temperature, and therefore a higher processing temperature and pressure are required. In addition, because the processing temperature (250~320 deg C) and decomposition temperature (about 300 deg C) is very close, so the processing temperature range is very narrow, should be noted. Specific molding processing methods include molding, injection molding, extrusion and coating. Can be made of film, pipe, bar, plate, etc. Molding due to high temperature will cause the decomposition of the resin, the release of corrosive acid gas, so the mold should be used corrosion resistant alloy materials or the use of high quality nickel chromium alloy, or with tool steel and then plated with hard chromium. The process conditions are as follows: the molding temperature is 220~240 ℃ (10~30 ℃ lower than that of common resin); The hot pressing pressure is 1~4. 9MPa; Cold pressure is 9.8~29. 4MPa; Heating time according to the thickness of the product, the thickness of 5mm when the heating time is 15min,lOmm is 35min,15mm is 50min.
- During extrusion molding, the screw aspect ratio (L/D) is ≥ 20, the compression ratio is (2:1) to (3:1), and the screw rotation speed is 15 to 20 r/min. When the pipe is produced, the processing temperature is 250 ° C. After the cylinder, 290 ° C. Before the cylinder, 320 ° C. After the mold, and 340~350 ° C. Before the mold. When producing thin tubes, emergency cold, and thick wall parts should be slow cold, so as to avoid bubbles. The mold temperature during injection molding was 130 to 150 ° C., and the pressure was 147 to 196MPA. Polychlorotrifluoroethylene suspension can be applied by dipping, spraying, pouring and brushing. Take spraying as an example. The coating process conditions are as follows: the diameter of the spray gun is sound 1. 5mm, the number of primer spraying is 1~2 layers, the number of fabric spraying is 6~7 layers, the distance between the spray gun and the spray piece is 10 ~ 20cm, and the moving speed of the spray gun is about 8 m/min, the oven temperature was 270 °c.
Last Update：2022-01-01 11:08:56
poly(chlorotrifluoroethylene) - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Application | used in the production of engineering plates, bars, pipes, corrosion resistant pumps, valve parts, can also be made into suspension, used as anti-corrosion, electrical Insulating coatings and films |
| production method | chlorotrifluoroethylene is obtained by suspension polymerization in an aqueous medium in the presence of an ammonium persulfate redox initiator. |
Last Update：2024-04-09 20:48:19
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CAS: 9002-83-9
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CAS: 9002-83-9
Tel: 18301782025
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Raw Materials for poly(chlorotrifluoroethylene)