CREATING TOMORROW'S SOLUTIONS APRESENTANDO DISPERSÕES DE COPOLÍMEROS VINIL ACETATO-ETILENO PARA TITNAS CONVENCIONAIS E DE BAIXO ODOR

Transcription

1 CREATING TOMORROW'S SOLUTIONS APRESENTANDO DISPERSÕES DE COPOLÍMEROS VINIL ACETATO-ETILENO PARA TITNAS CONVENCIONAIS E DE BAIXO ODOR

2 DISCLAIMER The information contained in this presentation is for background purposes only and is subject to amendment, revision and updating. Certain statements contained in this presentation may be statements of future expectations and other forward-looking statements that are based on management's current views and assumptions and involve known and unknown risks and uncertainties. In addition to statements which are forward-looking by reason of context, including without limitation, statements referring to risk limitations, operational profitability, financial strength, performance targets, profitable growth opportunities, and risk adequate pricing, as well as the words "may, will, should, expects, plans, intends, anticipates, believes, estimates, predicts, or continue", "potential, future, or further", and similar expressions identify forward-looking statements. By their nature, forward-looking statements involve a number of risks, uncertainties and assumptions which could cause actual results or events to differ materially from those expressed or implied by the forward-looking statements. These include, among other factors, changing business or other market conditions and the prospects for growth anticipated by Wacker Chemie AG s management. These and other factors could adversely affect the outcome and financial effects of the plans and events described herein. Statements contained in this presentation regarding past trends or activities should not be taken as a representation that such trends or activities will continue in the future. Wacker Chemie AG does not undertake any obligation to update or revise any statements contained in this presentation, whether as a result of new information, future events or otherwise. In particular, you should not place undue reliance on forward-looking statements, which speak only as of the date of this presentation.

3 CONTENTS 1. Fundamentos da tecnologia VAE 2. VAE para recobrimento arquitetônicos

4 CONTENTS 1. Fundamentals of VAE Technology 2. VAE para recobrimentos arquitetônicos

5 O QUE É UMA DISPERSÃO POLIMÉRICA? Diameter scope Macroscopic appearance Mm Gm White liquid; solid particles are dispersed in an aqueous medium Dispersions particles km diameter: 0.2 ~ 1 µm mm m surface: volume: ~ 0.50 µm² ~ 0.03 µm³ µm 1 liter (50% solids content) contains: number of particles: ~ 1.5 x nm total surface: ~ 7500 m² pm Source by Wacker Chemie AG

6 DIFERENÇA ENTRE UM DISPERSÃO VAE DISPERSION E RESINA EVA VAE copolymer dispersion: vinyl acetate - ethylene copolymer dispersion Liquid state: polymer solid contents = 50% - 72% Higher vinyl acetate content Main application: waterborne adhesives, coatings EVA resin: ethylene - vinyl acetate resin 100% polymer resin (no water) Higher ethylene content Main application: hot melt adhesives, solar cell encapsulation

7 ESTRUTURA DO POLÍMERO VAE Vinyl acetate (VAM) Basic raw material Polar, hydrophilic Tg ~ 28 C (hard) Toughness Ethylene Tg ~ C (soft) Hydrophobic Permanent flexibility High hydrolysis resistance Ideal co-polymerization with VAM Copolymer Structure

8 POLYMER STRUCTURE OF VAE Vinyl acetate (VAM) Basic raw material Polar, hydrophilic Tg ~ 28 C (hard) Toughness Ethylene Tg ~ C (soft) Hydrophobic Permanent flexibility High hydrolysis resistance Ideal co-polymerization with VAM Copolymer Structure Ethylene Vinyl Acetate

9 EFEITO DO MONÔMERO PRINCIPAL EM OUTRAS PROPRIEDADE: ETILENO E ACETATO DE VINILA Ethylene Content Decreasing Increasing Higher Tg Greater cohesive strength Better adhesion to cellulose High heat resistance Greater rigidity More hydrophilic Lower Tg Greater adhesive strength Greater adhesion to plastics Low heat seal temperature Greater flexibility More hydrophobic/greater water resistance

10 COMPARAÇÃO DA RAZÃO DE REATIVIDADE Vinyl Acetate Ethylene Vinyl Acetate - Vinyl Chloride Vinyl Acetate - Butyl Acrylate Vinyl Acetate - Methyl Methacrylate Vinyl Acetate - Styrene Mayo Lewis equation r1=r2 ~1: results in a random copolymer

11 TECNOLOGIA VINIL-ACETATO ETILENO Ethylene exhibits a more comparable reactivity rate to vinyl acetate versus that of butyl acrylate Results in a more random copolymer VA-E chain: VA-VA-E-VA-VA-VA-E-E-VA-VA-E-E-VA-VA-E-E-E-VA-E-VA VA-BA chain: VA-VA-VA-VA-VA-VA-BA-BA-BA-VA-VA-VA-VA-VA-VA-BA-BA Supported by the fact that VAEs have superior alkaline hydrolysis resistance vs. vinyl acrylics

12 A FORMAÇÃO DE FILME DA PARTÍCULAS POLIMÉRICAS PRECISAM INTERPENETRAR-SE Evaporation of water Agglomeration of the particles Interpenetration of the polymers

13 TEMPERATURA MÍNIMA DE FORMAÇÃO DE FILME MFFT MFFT 0 C 5 C 10 C 15 C 20 C muddy cracks clear film of dispersion Cold gradient of temperature warm Temperature at which a clear, crack-free film is formed Good film formation is a prerequisite for durable, tough films

14 O ETILENO É UM PLASTIFICANTE MUITO MAIS EFETIVO PARA VINIL ACETATO DO QUE O BUTIL ACRILATO O O O O O O H 3 C CH CH 3 3 VAE Copolymer Ethylene incorporates itself directly into the polymer backbone creating a polymer with more flexibility Main Chain Flexibility Pendant Group Flexibility O O O O O O O O O O VA/BA Copolymer BA incorporates itself as pendant groups which limit flexibility; significant increase in BA required to achieve similar flexibility as that of E H 3 C CH 3 CH 3

15 VANTAGENS DO ETILENO COMO COMONÔMERO Ethylene as internal plasticizer is incorporated in polymer chain No or small use of film-forming agent No migration Film formation at low temperatures (< 5 C) Ethylene is the ideal internal plasticizer for vinyl acetate polymer dispersion!

16 MFFT ( C) VINNAPAS VAE VS. DISPERSÃO ESTIRENO ACRÍLICA CORRELAÇÃO Tg / MFFT In VAE, water functions as a coalescing aid! Inherently better coalescing properties of VINNAPAS VAEs Tg ( C) (Comonomer)

17 VAE EXIBE UM MAIOR GRAU DE FORMAÇÃO DE FILME DO QUE UM ESTIRENO ACRÍLICO AFM images show difference in film formation between VAE and Styrene Acrylic at similar Tgs VAE copolymer Styrene Acrylic copolymer

18 TRÊS PRINCIPAIS FATORES QUE AFETAM SUAS PROPRIEDADES Factors affecting the bulk properties Branching of polymer chains Molecular weight of polymer Tg (glass transition temperature) Polymer structure Protection systems Chemical functionality Emulsion properties affected by polymers Tensile strength Elongation Cohesive strength (toughness) Heat / water resistance

19 TRÊS PRINCIPAIS FATORES QUE AFETAM SUAS PROPRIEDADES Purpose of protection To protect polymer particles during transportation Viscosity control Control adhesive properties (wet tack, water resistance, etc.) Type of protection systems Polymer structure Protection systems Chemical functionality Protective colloids: chemically graft to polymer particles PVOH (PVA): most popular for adhesives Cellulose Surfactants: anchor to polymer particles

20 PROTEÇÃO COLOIDAL (PVOH) E PROTEÇAO POR SURFACTANTE PVOH is chemically grafted to the VAE polymer chains Hydrophobic parts of surfactant anchor to VAE polymer particle Particle size of a PVA-protected VAE dispersion = mm Particle size of a surfactant-protected VAE dispersion = mm

21 A VISCOSIDADE E A RESISTÊNCIA A ÁGUA DO VAE AFETADOS PELO TIPO DE PROTEÇÃO

22 TRÊS PRINCIPAIS FATORES QUE AFETAM SUAS PROPRIEDADES Polymer structure Protection systems Chemical functionality PVOH Protection Surfactant Protection Large Particle size Fine Varies Particle size distribution Narrow Strong Wet tack Poor Good Flow Poor Good Machining Poor Rapid Setting speed Slow Newtonian Rheology Thixotropic For reasons mentioned above, VAE protected by PVOH is typically used for adhesives while surfactant protected VAE is used for coatings!

23 TRÊS PRINCIPAIS FATORES QUE AFETAM SUAS PROPRIEDADES Acrylic acid Increases bonding to metal substrates n-methylol acrylamide Increases water resistance O C O O Polymer structure Protection systems O C O CH 3 O C O CH 3 C O OH Acrylic O C O CH 3 C O CH 3 NH O C O CH 3 Chemical functionality Acid CH 2 NMA

24 CONTENTS 1. Fundamentals of VAE Technology 2. VAE para aplicações arquitetônicas

25 TINTAS INTERIORES AMBIENTALMENTE AMIGÁVEIS Benefits of VAE when used for interior paints Binding power Rheological behavior Applicability and workability, open time Solvents can be reduced or eliminated from formulations For flat through semi-gloss level paints

26 DISPERSÕES VINNAPAS EF8001 OFERECEM ALTO DESEMPENHO SENDO MAIS AMBIENTALMENTE AMIGAVEL Lower Environmental Impact Touch-up High Scrub Resistance Low Solvent Demand Low VOC Capable Excellent Low Temperature Coalescence Compatibility with Other Resins for Blending VINNAPAS EF8001 Formulating Latitude Mechanical Stability Made Without Using APEO Alkaline Hydrolysis Resistance Excellent Thickener Response Formulated Cost Savings Very Low VAM

27 VINNAPAS EF8300 DISPERSION OFFERS HIGH PERFORMANCE WHILE BEING MORE ENVIRONMENTALLY FRIENDLY Lower Environmental Impact Touch-up High Scrub Resistance Low Solvent Demand Low VOC Capable Excellent Low Temperature Coalescence Compatibility with Other Resins for Blending VINNAPAS EF8300 Formulating Latitude Mechanical Stability Made Without Using APEO Wet Adhesion to Alkyd substrates Excellent Thickener Response Block Resistance Very Low VAM

28 VINNAPAS PARA TINTAS INTERIORES BAIXO VOC Type EF8001 EF8300 Emulsifier System Surfactant Surfactant APEO-free Yes Yes Solids Content 55% 55% Viscosity cP cP MFFT 0 C 0 C Tg 6 C 6 C Particle Size 0,23µm 0,22µm

29 VINNAPAS PARA TINTAS INTERIORES BAIXO VOC Type EF8001 EF8300 Emulsifier System Surfactant Surfactant APEO-free Yes Yes Solids Content 55% 55% Viscosity cP cP MFFT 0 C 0 C Tg 6 C 6 C Particle Size 0,23µm 0,22µm

30 RESISTÊNCIA À LAVABILIDADE VAE copolymer dispersion provides excellent scrub resistance over a broad range of PVCs VAE dispersion exhibits superior scrub resistance compared to: Low-VOC vinyl acrylics Traditional VAEs Low-VOC styrene acrylics

31 C Y C L E S A B N T N B R D A Y B L O C K R E S I S T A N C E VANTAGENS DO VAE EM LAVABILIDADE + BLOCK No Coales 10% Coales 10% Coales 5% Coalesc 5% Coalesc 5% Coalesc 0 VINNAPAS EF 8300 Traditional Acrylic #1 Traditional Acrylic #2 Low VOC Acrylic #1 Low VOC Acrylic #2 Low VOC Acrylic #3 0 L A T E X P O L Y M E R 22% PVC / 38% NVV / Formulation SGI-110

32 VANTAGENS VAE EM LAVABILIDADE ABNT NBR Brazilian Standard VINNAPAS STYRENE EF8300 ACRYLIC 0% COALESCENT 5% COALESCENT ON BINDER VOC <5,0g/L 340 cycles SOLIDS VOC 35g/L 1991 cycles 340 cycles Formulation BRSGI-015 / 31% PVC / 34% NVV

33 VANTAGENS VAE EM LAVABILIADE ABNT NBR Brazilian Standard VINNAPAS STYRENE EF8001 ACRYLIC 0% COALESCENT 5% COALESCENT ON BINDER VOC 8g/L 128 cycles SOLIDS VOC 28g/L 325 cycles 128 cycles Formulation BRFLI-012 / 58% PVC / 31% NVV

34 C Y C L E S A B N T N B R VATAGENS VAE EM LAVABILIDADE + BAIXO VOC SCRUB RESISTANCE CALCULATED VOC (g/l)

35 VANTAGENS VAE NO RETOQUE (TOUCH-UP) Low Temp Ambient Temp Vinyl Acrylic VINNAPAS Touch-up refers to the ability of a paint to maintain uniform appearance and sheen regardless of application method or temperature at which a second coat of paint is applied over the first coat

36 AS INOVATIVAS DISPERSÕES DE COPOLÍMEROS VAE OFERECEM ALTO DESEMPENHO COM MENOR IMPACTO AMBIENTAL Wacker Polymers offers a range of VINNAPAS VAE copolymer dispersions that are: Low VOC capable (< 5g/l) Low odor Cost-effective Produced without the use of APEO or without the use of formaldehyde donors

37 QUANTO UMA DISPERSÃO VAE REDUZ O CUSTO DA FORMULAÇÃO DE TINTA? VINNAPAS dispersion offers more competitive price over acrylics Good binding power and superior scrub resistance Can be raise PVC (keeping NVV constant) replacing binder solids with lower cost extender pigments with proper formulation adjustment Reduced solvent costs No need to add coalescing agent Reduced associated thickener costs VINNAPAS VAE offer improved thickener response over other vinyl acrylic commercial products, resulting in reduced total thickener cost

38 RESUMO High-performance VAE Choice between higher scrub resistance (better classification) or reduced binder content (cost advantage) High-solids content Gives broader formulation flexibility Higher active content means less water per delivery Eliminate solvents in formulations Zero cosolvent demand Removes solvent cost from calculations Single binder for matt, satin & silk finishes Simplifies raw material storage and logistics Low Environmental Impact Low-VOC formulations Without the use of APEO Without the use of formaldehyde donors Premium-quality paints compliant with the most critical eco-labels

39 OBRIGADO!!!