直接氟化作为改善聚合物材料操作性能的方法。

Belov Nikolay A, Alentiev Alexander Y, Bogdanova Yulia G, Vdovichenko Artem Y, Pashkevich Dmitrii S

Engineering Center, Tomsk Polytechnic University, 30, Lenin Avenue, Tomsk 634050, Russia.

A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29, Leninskii Prospect, Moscow 119991, Russia.

Polymers (Basel). 2020 Nov 28;12(12):2836. doi: 10.3390/polym12122836.

Direct fluorination of polymers is a widely utilized technique for chemical modification. Such introduction of fluorine into the chemical structure of polymeric materials leads to laminates with highly fluorinated surface layer. The physicochemical properties of this layer are similar to those of perfluorinated polymers that differ by a unique combination of chemical resistance, weak adhesion, low cohesion, and permittivity, often barrier properties, etc. Surface modification by elemental fluorine allows one to avoid laborious synthesis of perfluoropolymers and impart such properties to industrial polymeric materials. The current review is devoted to a detailed consideration of wetting by water, energy characteristics of surfaces, adhesion, mechanical and electrical properties of the polymers, and composites after the direct fluorination.

聚合物的直接氟化是一种广泛应用于化学改性的技术。将氟引入聚合物材料的化学结构中会产生具有高度氟化表面层的层压板。该层的物理化学性质与全氟聚合物相似，全氟聚合物具有耐化学性、弱附着力、低内聚力和介电常数等独特组合，通常还具有阻隔性能等。通过元素氟进行表面改性可以避免全氟聚合物的繁琐合成，并将这些性能赋予工业聚合物材料。本综述详细探讨了直接氟化后聚合物和复合材料的水润湿、表面能量特性、附着力、机械和电气性能。