Polyvinylidene fluoride (PVDF) resin with good comprehensive properties

Polyvinylidene fluoride resin is considered to be a fluorine-containing resin second only to PTFE. It is a fluorine-containing polymer material with good comprehensive performance. It has the common characteristics of fluorine-containing resin, such as excellent thermal stability, corrosion resistance, and non-combustibility. Performance, such as resistance and UV resistance. Compared with other fluorine-containing resins represented by PTFE, it has the advantages of high tensile strength and compressive strength, excellent rigidity, abrasion resistance and cutting resistance, lower melting point, and good melt fluidity. Common resin processing methods and processing machinery can be used for molding, extrusion, injection, and blow molding.

At present, there are many foreign companies producing PVDF resin, such as Atofina, Solvay and Kureha Chemical Industry Co., Ltd., all with a scale of 1,000 to several thousand tons. The world's total annual output is tens of thousands of tons, with hundreds of varieties. It accounts for about 14% of fluoroplastics. PVDF resin is a new material with excellent comprehensive properties developed in the 1970s. There are only a few domestic companies that produce PVDF resin, with an annual output of only 100 tons, and there is a certain gap between the quality and large foreign companies, especially It is a product-grade PVDF resin, which basically depends on imports. At present, the domestic annual consumption is about 2,000 tons, so the market gap of polyvinylidene fluoride resin is very large. With the continuous development of new uses of polyvinylidene fluoride in recent years, the market prospect of polyvinylidene fluoride is very promising.

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综合性能良好的聚偏氟乙烯(PVDF)树脂

聚偏氟乙烯树脂被认为是仅次于PTFE的含氟树脂，是一种综合性能良好的含氟高分子材料，具有含氟树脂的共同特性，如优良的热稳定性、耐腐蚀性、不燃性、耐紫外线性等性能。同以PTFE为代表的其它含氟树脂相比具有高的抗张强度和抗压缩强度、优良的刚性、耐磨耗性和耐切割性、熔点较低、熔融流动性好等优点。可以用普通树脂的加工方法、加工机械进行模塑、挤塑、注塑、吹塑加工。

目前国外有多家公司生产PVDF树脂，如Atofina公司、Solvay公司和日本吴羽化学工业公司等，均是一千至数千吨的规模，世界年总产量为数万吨，上百个品种，约占含氟塑料的14%左右。PVDF树脂是二十世纪七十年代发展起来的具有优良综合性能的新材料，国内只有很少几家单位生产PVDF树脂，年产量仅为百吨，且品质与国外大公司存在一定的差距，尤其是制品级PVDF树脂，基本依赖进口。目前，国内年用量约为2000多吨，因而聚偏氟乙烯树脂的市场缺口非常大，随着近年来聚偏氟乙烯新用途的不断开发，聚偏氟乙烯的市场前景非常看好。