Solef® PVDF

Polímeros fluorados semicristalinos com equilíbrio de propriedades físicas que os qualificam para serviços de alto desempenho em uma ampla gama de aplicações

  Solef® PVDF product brand Click to enlarge

Solef® PVDF é um termoplástico semicristalino fluorado obtido pela polimerização do fluoreto de vinilideno. Sem nenhum aditivo, apresenta estabilidade intrínseca inerente dos polímeros fluorados, mesmo quando exposto a ambientes de alta severidade, proporcionando ao usuário uma exclusiva combinação de propriedades que resultam em maior vida útil dos equipamentos.

Além dos homopolímeros PVDF, Solef® PVDF está disponível em uma ampla gama de copolímeros VF2-HFP e de copolímeros VF2-CTFE que proporcionam funcionalidade superior em temperaturas frias.

A linha VF2-CTFE inclui a série Solef® 60000, que oferece melhor equilíbrio entre as propriedades positivas dos homopolímeros em temperaturas frias e termomecânicas.

Características principais

• Quimicamente inerte à maioria dos ácidos, compostos orgânicos alifáticos e aromáticos, solventes clorados, alcoóis, etc.

• Altíssima pureza

• Resistência à abrasão comparável a das poliamidas

• Baixo coeficiente de atrito

• Uso contínuo em uma ampla faixa de temperaturas

• Não afetado por radiação UV; boa resistência à radiação gama

• Excelente resistência intrínseca ao fogo

• Sem riscos fisiológicos e aprovado para contato com produtos alimentícios

• Boa capacidade de termoformagem e facilidade de junção por soldagem

Desempenho relativo de polímeros fluorados processados por fusão

Além das resinas Solef PVDF, a GBU Specialty Polymers da Solvay oferece uma ampla gama de polímeros fluorados que também podem ser facilmente processados por injeção, extrusão e todas as técnicas de processamento convencionais.

Solef Relative Performance

Os produtos Solef® PVDF podem ser processados com técnicas aplicáveis aos termoplásticos padrão:

• Extrusão

• Moldagem por injeção, compressão e transferência

• Usinagem

Os itens produzidos com todos os produtos não reforçados de Solef® PVDF podem ser facilmente montados com métodos de soldagem padrão, como:

• Soldagem a ar quente com vareta de solda

• Soldagem de topo

• Selagem a quente

• Ultrassônica

• Soldagem por infravermelho


Crescimento do mercado de Solef® PVDF

Solef® PVDF (fluoreto de polivinilideno) é uma família de polímeros fluorados semicristalinos que oferece excelentes propriedades físicas para diversos setores chave, como Petróleo e Gás, baterias de íon de lítio e componentes fotovoltaicos.

Há vários anos, sua expansão nos setores com alto crescimento justifica os aumentos de capacidade no mundo todo.

Em 2013, uma nova linha de produção aumentou em 50% a capacidade de produção em Tavaux (França), permitindo que a GBU atenda melhor a um mercado europeu muito ativo.




    Solef® PVDF Markets and Applications

    Automotive Fuel Systems

    Optimal Pipes, Tubes and Hoses

    Solef® PVDF qualities of impermeability and chemical resistance recommend their use in automotive fuel transport systems. A layer of Solef® PVDF within the construction of a multi-layer fuel line enhances the strength, permeation resistance and durability of the hose.

    Learn more about Specialty Polymers for Automotive Fuel Systems

    Chemical Processing Industry

    Industries such as Chemical Processing rely on Solef® PVDF to withstand heat and pressure, aggressive chemicals, mechanical stress, and abrasive particles in varied applications:

    • Chemical production
    • Transport and storage systems
    • Filtration and separation equipment (filters, membranes, housings)
    • Heat exchangers

    Gas Sampling Bags

    Gas sampling bags fabricated from Ajedium Solef® PVDF film are inert to most gases and resist gas permeation.

    Films are available from 1 mil up to 55” wide and are designed to retain their properties when exposed to a variety of chemicals over a wide range of temperatures. Moreover Solef® PVDF does not contain additives that could eventually leach out during service and will not demonstrate particle generation over time.

    Solef® PVDF films are readily thermo weldable. Tensile tests performed on the welded seams have proven that fusions are as 100% reliable as the original material.

    Pumps and Filters Diaphragms in Chemical Industry

    Thanks to its chemical resistance and high service temperature, Solef® PVDF films are used in the manufacturing of diaphragms for pumps and filters used in CPI applications.

    Learn more about Specialty Polymers for CPI

    Films

    Photovoltaic Backsheet Films

    Solef® PVDF films are ideally suited as a component in backsheet laminates used in photovoltaic modules. PVDF offers an excellent combination of properties from UV stability to water vapor permeation resistance making it an excellent choice. Solef® PVDF can be laminated to PET to provide the traditional fluoropolymer-PET-fluoropolymer or fluoropolymer-PET structure currently available in the marketplace.

    Antigraffiti Covering Films

    Thanks to their chemical resistance and low surface tension, Solef® PVDF films are used to protect surfaces from graffiti. PVDF high chemical resistance allow the use of aggressive cleaning agents to remove inks and its low surface tension reduce the adhesion of graffiti.

    Wind Power Protective Films

    Solvay offers protective Films made by Solef® PVDF which offer high resistance to environmental conditions and lower friction for wind mills blades and turbine generators.

    Key Features

    • Abrasion resistance
    • Low coefficient of friction
    • Unaffected by UV (>232 nm)
    • Good adhesion of various substrates with specific grades

    Fuel Cells

    Solef® PVDF is a chemically resistant polymer with high thermal stability for the fuel cell system's balance of plant components such as manifolds, fuel tubing, fittings, valves, recipients, etc. produced via thermal molding processes.

    Li-Ion Batteries

    With a high chemical and electrochemical resistance, Solef® PVDF grades offer more reliable life time and performances when used as binder.

    Furthermore, with its good wettability in electrolyte and its ease of processing with different technologies, Solef® PVDF resin is used as component in the separator membrane improving safety and performances with more effective cost.

    Learn more about Solef® PVDF for Li-Ion Batteris

    Membranes

    Solef® PVDF possess all the characteristics necessary to make hollow fiber, flat sheet and tubular membranes with the pore size and separation selectivity used in the realization of bioprocessing and medical filtration membranes and food and beverage processing membranes.

    Learn more about Fluoropolymers for Membranes

    Oil & Gas

    Solef® PVDF has been used in the harsh environments of down-hole and sub-sea oil production for many years due to its proven thermal, chemical resistance and barrier properties.

    Solef® PVDF is used in multilayer flexible pipes, such as risers and flow-lines, which bring the crude oil from the under-sea wells up to the fixed platforms or floating installations.

    Learn more about Specialty Polymers for Oil & Gas

    Plumbing

    Solef® PVDF grades are widely used in piping systems for ultrapure water, hot, concentrated acids; pharmaceutical grade chemicals; chrome plating chemicals and more. They are also materials of choice for the construction of flexible risers for off-shore oil & gas extraction as well as for off- and on-shore distribution.

    Learn more about Fluoropolymers for Plumbing

    Semicon

    Solef® PVDF, extruded or molded, is found in fittings, valves and various components as well as in processing equipment. It also provides reliable construction for waste disposal systems.

    Learn more about Specialty Polymers for Semicon

    Wire & Cable

    Solef® VDF-HFP PVDF copolymers are widely used for jacketing copper plenum cables and for plenum rated optical fiber raceways thanks to their outstanding fire resistance.

    Solef® VDF-CTFE copolymers combine improved flexibility, low shrinkage, and an expanded range of service temperatures.

    Learn more about Specialty Polymers for Wire & Cable