Polyvinylidene fluoride (PVDF) resin is considered to be a fluorine-containing polymer material with good comprehensive properties, which has the common characteristics of fluorine-containing resins, such as excellent thermal stability, corrosion resistance, incombustibility, UV resistance and so on. Compared with other fluorine-containing resins such as PTFE, it has the advantages of high tensile strength and compressive strength, excellent rigidity, wear resistance and cutting resistance, low melting point and good melting fluidity. It can be used for molding, extrusion, injection molding and blow molding with common resin processing method and processing machinery.
At present, there are many foreign companies producing PVDF resin, such as atofina company, Solvay company and Japan Wuyu Chemical Industry Co., Ltd., all of which have a scale of 1000 to thousands of tons. The total output of the world is tens of thousands of tons, with hundreds of varieties, accounting for about 14% of the fluorine-containing plastics. PVDF resin is a new material with excellent comprehensive properties developed in the 1970s. Only a few domestic units produce PVDF resin, with an annual output of only 100 tons, and there is a certain gap between the quality of PVDF resin and foreign companies, especially product grade PVDF resin, which basically depends on import. At present, the domestic annual consumption is about 2000 tons, so the market gap of polyvinylidene fluoride resin is very big. With the continuous development of new uses of polyvinylidene fluoride in recent years, the market prospect of polyvinylidene fluoride is very good.
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