Molecular Formula | C4H2ClF5 |
Molar Mass | 180.503696 |
Density | 2g/mLat 25°C(lit.) |
Melting Point | 105°C(lit.) |
Use | For coating, casting film, acid resistant products, etc., can also be used in optical fibers. For the production of sealing tape, pipe, etc. Used as anti-aging coating, corrosion resistant coating, fluorine rubber filler, improve its corrosion resistance and tear resistance, mixed with polyethylene molding to improve product resistance. |
polyvinyl fluoride is a partially crystalline (20% to 60%) polymer having a crystalline melting point of 190 to 200 ° C., a thermal decomposition temperature of 210 ° C. Or more, and a long-term use temperature of -80 to 110c. Because the thermal decomposition temperature is close to the processing temperature, it is not suitable to use the thermoplastic molding method. At present, it can only be supplied as a commodity in the form of films and coatings. Polyvinyl fluoride is the lowest fluorine content, the lowest relative density and the lowest price in the fluorine resin. It has many characteristics of common fluororesins and is distinguished by its unique weather resistance. After decades (more than 30 years) of open air exposure, the film can still maintain its appearance and physical and mechanical properties. The polyvinyl fluoride film is not attacked by oil, organic solvent, acid, alkali and salt spray, and has good mechanical properties, and the tensile strength is as high as 44. lMPa or more, the toughness is very good, the elongation is as high as 115% ~ 250%, can withstand the repeated expansion and shrinkage of the laminated substrate without cracking. It also has good electrical insulation properties, low temperature performance, wear resistance, non-stick properties and impermeability to steam and grease.
The Vinyl fluoride monomer was added to the polymerization vessel with water as medium and azobis isobutyramidine hydrochloride as initiator to a pressure of 1. 96MPa, the polymerization temperature is controlled to 50~60 deg C, and continuously add monomer to maintain the polymerization pressure, reaction after 15~20H white emulsion. With
After the polymer was precipitated from the saturated brine, it was washed and dried to obtain a white powdery product.
resin production raw materials, the skin and mucous membranes of the human body have different degrees of stimulation, can cause skin allergic reactions and inflammation; At the same time also pay attention to the harm of resin dust on the human body, long-term inhalation of high concentrations of resin dust, can cause lung lesions. Most of the resin has a common hazard characteristics: open flame, high temperature flammable, and oxidant exposure will cause combustion risk, therefore, the operator to improve the operating environment, the operating area and the non-operating area shall be intentionally drawn apart, automated and closed as far as possible, and ventilation facilities shall be installed. The polyvinyl fluoride resin is packed in polypropylene woven bags lined with polyethylene film bags, and the net content of each bag is 15kg. This product shall be transported as non-dangerous goods, and the transportation and storage shall avoid sun exposure and rain, and be stored in a dry, clean and ventilated warehouse. Polyvinyl fluoride resin as raw material for the production of water-based coatings, net content per barrel 4kg, 22kg or 95kg. This product is packaged in a plastic barrel with a plastic-lined hard barrel. The water-based coating material is transported as non-dangerous goods at a storage temperature of 5-50 °c.
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Application | used in the production of sealing tape, tube, etc. used for optically transparent materials, especially for infrared light transmitting materials, anti-corrosion equipment on the mirror, used as electrical and electronic insulation material used as anti-aging coating, corrosion-resistant coating, fluorine rubber filler, improve its corrosion resistance and tear resistance, mixed with polyethylene molding to improve product resistance used in coating, casting film, acid resistant products, etc., can also be used in optical fibers. For the production of sealing tape, pipe, etc. Used as anti-aging coating, corrosion resistant coating, fluorine rubber filler, improve its corrosion resistance and tear resistance, mixed with polyethylene molding to improve product resistance. |