Bio based technology for sustainable coating solutions. Eric Brouwer NVVT; January 29, 2013

Transcription

1 Bio based technology for sustainable coating solutions Eric Brouwer NVVT; January 29, 2013

2 Contents Trends in the market leading to more environmental awareness A few words about Croda An introduction to bio based chemistry An overview of bio based building blocks Croda has to offer Conclusions

3 The Market drivers and Industry responses Global Demands Market Driver Industry Trends Reduced environmental impact Reductions of solvent use (Kyoto) Low viscosity resins Waterborne technology UV curing systems Reduced consumption of non Increaseduseof bio based Replacement of petro-chemical renewable resources materials building blocks with naturally derived monomers. Improving energy utilisation by replacing metallic construction with plastics Increasing performance levels of plastics and adhesives The use of lightweight, durable polymers in new more demanding applications e.g. car, aerospace, energy generation

4 What We Do Consumer Care Personal Care Sun Care & Biotechnologies Sederma Crodarom & Seatons Health Care Crop Care Performance Technologies Industrial Chemicals Lubricants Coatings & Polymers Home Care Geo Technologies Polymer Additives Industrial Chemicals

5 A short overview of Croda 33 Countries 18 R&D Centres 17 Manufacturing Sites 46 Sales Offices

6 Croda Coatings & Polymers Offer high performance specialities to improve the environmental profile of your products Large part of the portfolio is based on renewable resources Innovation is key Global presence of R&D- Gouda (NL), Atlas Point (US), Singapore (Asia) Manufacturing Sales representation

7 Croda Coatings & Polymers Who we are The Coatings and Polymers business has two main focus areas Promoting bio-based (oleochemical) building blocks to polymer resin manufacturerswho are seeking to improve the performance and/or environmental profile of their products Promoting innovative additive technology to coatings formulatorsseeking to improve the environmental profile of their products

8 High performance oleochemicals Seed crushing Oil refinery

9 High performance oleochemicals(2) Natural oils & fats Water Splitting & refining Fatty acid Hydrogenation Glycerine Amidation Polymerisation Esterification Saponification Amides Isostearic acid Dimer acids Esters Soaps

10 The basis: Pripol TM dimerisedfatty acids Large hydrocarbon part (C 36 ) Hydrophobic Hydrolytic resistance of derivatives Affinity for non-polar matrices and surfaces HOOC COOH Irregular non-crystalline structure Flexibility Low T g Flow, wetting No strain hardening Low shrinkage

11 Different forms of bio based solutions Pripol Dimer acid HOOC COOH Pripol Dimer diol Priamine TM Dimer diamine HO OH H 2 N NH 2 Priplast TM Polyesters polyols HO---- E--E OH n

12 Offerings for many coatings systems Polyester PUD Epoxy Dimer acid X Dimer diol X X Polyester polyol X Dimer diamine X

13 Bio based solutions for polyesters

14 Typical carboxylic acids (usually Phtalic anhydride) Maleic acid (usually Maleic anhydride) O=C HO C=O OH Dimer acid Adipic acid Azelaic acid Trimellitic acid

15 Typical alcohols (Mono-) Ethylene glycol Glycerine Diethylene glycol Penta erythritol (Mono-) Propylene glycol HO OH Butane diol Dimer diol Tri methylol propane Hexane diol Bisphenol ethoxylate

16 Benefits of Pripol Pripol benefits (dimer acids, dimer diol): Bring alkyd-like properties to linear polyester, such as Pigment wetting brilliant, lustre colours Good flow high gloss, good adhesion to porous substrates Hydrophobicity excellent water barrier, hydrolytically stable polymers Flexibility down to very low temperatures

17 Pripol-F hydrogenated dimers for food contact applications The new Pripol-F grades can be used in a wide range of materials that are intended to come into contact with food such as: Food packaging adhesives Coatings on food packaging Coatings for food processing equipment Laminate foils for microwave food packaging Example: enabling Bisphenol A-free can coatings Pripol-F can be used in saturated BPA-free polyesters Offering excellent flexibility and formability to can coatings Hydrophobicity facilitating the use of polyester coatings on printed-ink exterior can surfaces

18 Pripol and Priplast in coatings Dimer diol(pripol) andpolyester polyolrange (Priplast): veryflexibledimerfattyacid baseddiolsforusein Polyurethane dispersions(puds) Polyesters Non-coating applications: Sealants Foams Adhesives But there are so many diols already?! First let sseewhatpud sare usedin

19 Bio based solutions for PUD s Packaging material Leather and synthetic leather Metal coating Coatings and Adhesives Industry Coil coating Textile Automotive industry Furniture Wooden floors Footwear

20 Effects of Priplast technology Hydrocarbon nature Irregular non-crystalline structure Absence of Hydrophobicity Flexibility ether links Flow and wetting No hardening under strain Adhesion to various substrates Stability against heat, oxygen, UV Hydrolytic stability Stability against acid/base Low moisture absorption

21 PUD setup 1) Prepolymer 2) Dispersion and chain extension or acetone process

22 Durability: hydrolysis resistance of PU from bio-priplast vs. other polyols Retention of tensile strength [%] PU elastomer Recipe: 1 Polyol 2 Butanediol 3.1 MDI Conditions : 1 week in H 2 O (dist.) at 90 C 0 Priplast 3286 Priplast 3238 Priplast 3293 PTMEG HDO-adipate Priplast outperforms conventional polyols on durability

23 Moisture repellency: PU from Priplast vs. other polyols Moisture uptake at 23 C [%] Recipe: 1 Polyol 2 Butane diol 3.1 MDI 1.2 Conditions: 1 week in H 2 O dist Poly BD Priplast 3286 Priplast 3293 Priplast 3238 HDO-adipate BDO-adipate PTMEG PPG Priplastoffers excellent moisture barrier protection and can extend the lifetime of the end product

24 Priplast recommendations for PUD Priplast 3162 Priplast 3192 Priplast 3172 Priplast 3293 Priplast 3190 Pripol 2033 when coatings with a higher hardness are preferred it is well suited for a range of rigid substrates in coatings and adhesives in coating formulations it exhibits a balance between hardness and flexibility in adhesives it shows good strength in adhesives to improve the green strength suitable for flexible/rigid substrates in coatings and adhesives especially for flexible coatings, for plastic, textile and leather coatings. good combination hardness/flexibility 100% bio-based especially suited for low temp applications as main polyol or modifier in coatings and adhesives extreme hydrophobicity will provide hydrolysis resistance in formulations for flexible/rigid substrates

25 Diamines are used: to cure epoxy systems Bio basedsolutionsforepoxy systems: Priamine dimer diamine to build polyamides (not for coatings)

26 Curing with amines

27 Ways to use Priamine 1071 in epoxy coatings 1. As main curing agent High solids formulations with high flexibility 2. As co-hardener in amine based curing system Balancing hardness and flexibility

28 Increasing solids in liquid epoxy coating formulations 3000 V125 type polyamide 2500 V125/P /50. visc. 25C (mpa.s) Dyn Target viscosity 500 mpa.s Priamine1071 At 500 mpa.s: V125 type Polyamide: 82% solids Priamine 1071: 93% solids Epoxy coating formulation comprising Epikote 828, curing agent and solvent. Solvent mixture used is xylene / butanol in a 4:1 ratio 0 50% 60% 70% 80% 90% 100% Solid content (%) 60% less solvents! Priamine enables formulators to increase the solid content by 11% in formulation

29 Ways to use Priamine 1071 in epoxy coatings 2. As co-hardener in amine based curing system Combine hardness and flexibility by modifying commercial curing agents with PRIAMINE 1071 High solid metal coating for corrosion protection Based on Ancamide 3201: polyaminoamide curing agent Ancamine is a trademark by Air Products and Chemicals Inc.

30 Optimising flexibility/hardness Brittle Epikote 828 / hardener blend after 1 w k C Man andrel Flex (mm) Flexible Modifying Ancamide 3201 with PRIAMINE 1071 (wt%) Kön nig Hardness (s) Mandrel Flex Hardness Freedomof choicetobalanceflexibility andhardnessbyusinga mix of Priamine 1071 with conventional hardener

31 Improving impact resistance Epikote 828/hardener blend after 1 wk C Impact resistance (cm.kg) Modifying Ancamide 3201 with Priamine 1071 (%wt) direct 25 C indirect 25 C indirect 5 C indirect -25 C Depending on most important feature, the exact mixture of Priamine 1071 with conventional hardener can be chosen

32 Benefits of Priamine Higher solid(less solvent) loads possible due to low viscosity of Priamine Combination of high flexibility adjustmentsduetoexcellent compatibilityof Priamine with other curing agents Hydrophobicity resulting in good corrosion protection due to water repellant dimer fatty acid origin.

33 Conclusions With bio based materials all types of conventional coating and resin system can be build. Propertiesof thosesystems are at leastas goodas systems without bio based materials, if not better. Withanincreasingawareness andinterest in bio basedrawmaterials, more possibilitieswillbecomeavailabletooffer a widerportfolio of solutionstothe coatings and resins industry

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