Presentation on theme: "TBF Environmental Technology Inc."— Presentation transcript:
1 Green Solvents: The Bottom Line PNWSCT Coatings Fest Symposium 8-10 October 2014
2 TBF Environmental Technology Inc. Develops, manufactures, markets, and distributes environmentally-friendly solvents to industrial markets in North America:Paints and coatingsAdhesivesPrinting inksPolymersPersonal careGeneral industrial cleaning and degreasing
4 Green Solvent Issues Many alternatives to MEK, Xylene, IPA and Acetone have been developed, but few work well:“The opportunity to develop and market solventswith lower ecological and toxicological profiles isexcellent … however, the perfect solvent is notavailable. Tradeoffs have to be made regardingefficiency, cost and environmental impact”Chemical Insight & Forecasting, Nov 2010.
5 Green Solvent IssuesOver 10,000,000 US workers Exposed to toxic solvents on a daily basis.Solvent emissions destroy human healthand pollute the atmosphere.US EPA and State regulators continuallyimpose lower limits on VOCs.Methyl Ethyl Ketone (MEK) and Xylene donot meet new regulations.Substitute green solvents currently availablehave serious limitations that limit their efficacy and acceptance.
6 Hydrocarbon Solvents A Huge Problem Many states are restricting companies annual usage of various hydrocarbon solvents, particularly Xylene and Toluene.Companies are trying to scale back usage of solvents and are looking for effective alternatives due to serious legal, health and environmental concerns.“Green” solvent alternatives are proving problematic.
7 Regulations Increasing EPA and State regulators, especially California, Texas, Massachusetts are continually imposing lower limits on VOCs of various products.Most “Biomass” produced solvents do not meet new regulations, and are shown to have serious environmental problems.Carbon footprint, emission byproducts and VOC issues are primary concerns in “biomass” based solvents.
8 New Regulations Massachusetts Section 7.18 is currently under review Proposing to add a new section (30):Adhesives, Adhesive Primers, Sealants and Sealant Primers to the list of regulated products.Limits are set to come into effect in 2015 and 2016.
9 California Air Resources Board (CARB) New RegulationsCalifornia Air Resources Board (CARB)Maximum Incremental Reactivity (MIR):Volatile Organic Compounds (VOCs) are not the only measurement of the impacts on air quality.CARB developed and has initiated the use of the Maximum Incremental Reactivity (MIR) value to quantify the propensity of a chemical compound to react in the atmosphere to form ground-level ozone.
10 California Air Resources Board (CARB) New RegulationsCalifornia Air Resources Board (CARB)Maximum Incremental Reactivity (MIR): MIR is being adopted as a replacement for Low Vapour Pressure as more flexible standard in determining suitability of a solvent as “VOC-exempt” or “low VOC”.Focus on eliminating high-MIR compounds which will have the greatest impact in lowering ambient VOC levels.
11 California Air Resources Board (CARB) New RegulationsCalifornia Air Resources Board (CARB)Any product that meets the definition of an aerosol coating is regulated.Product could default to the lowest general-purpose coatings category limit if not properly labelled.General Coatings Maximum Incremental Reactivity (MIR) limits lowered. Effective date 01/01/2017.New categories and New MIR limits for some categories called Specialty Coatings (A) effective date 01/01/2017.
12 California Air Resources Board (CARB) New RegulationsCalifornia Air Resources Board (CARB)More Reporting RequirementsLargest Issue:General coating limits will be very challenging to meet. Aerosol coatings producers should review this regulation completely to ensure their products are compliant and categorized properly.CARB enforcement to be strict and target incorrectly labelled products.
13 Maximum Incremental Reactivity (MIR) (Contribution to ozone and smog) MIR DataMaximum Incremental Reactivity (MIR) (Contribution to ozone and smog)Comparison ValuesMIRMethyl Ethyl Ketone:EkaSolAcetoneTergoSolXylene:Toluene:Parachlorobenzotriflouride (PCBTF) 0.11Teriary Butyl Acetate (TBAc) 0.18ZemaSol:
14 Comparison Graph of MIR Values MIR DataComparison Graph of MIR Values
15 Green Solvent Alternative EkaSol 1™A safe, effective, efficient and cost effective replacement for Methyl Ethyl Ketone (MEK).Benzene-free.Non-carcinogenic.No hazardous air pollutants (HAPs).No ozone-depleting or creator chemicals.Considered an Ultra-Low VOC Solvent (LVOC) in SCAQMD and CARB, exempt in 49 states.EPA 24: EkaSol 2.66 g/l VOCPersonal Care Council (INCI) Approved
16 Green Solvent Alternative EkaSol 1™EkaSol 1 can be used in:paints and coating formulations and cleaningpaint and varnish removersink and marker formulations and cleaningadhesive formulation and cleaningadhesive removersgelcoat formulation and cleaningfiberglass manufacturingEkaSol 1 can be used in or as:surface preparation and precision cleanergeneral purpose surface wipe cleanergeneral and heavy duty degreaserlaboratory and equipment wipe solventbrake and contact cleanerpaint gun and paint line cleanerlubricating greases and oilsautomotive chemicals and cleanersundercoat formulation and cleaningwaterproofing compoundshousehold dyes and tintslaundry starches and shoe polishesnail polish removershard surface cleaners
17 Green Solvent Alternative EkaSol 1™Physical/Chemical CharacteristicsEkaSol 1™Methyl EthylKetoneMethyl AcetateDiMethylCarbonateDensity °C)0.970.8040.9328.9Boiling Point (°C)75.3179.65890Evaporation Rate (n-BuAc=1)3.626.03.2Flash Point (°C)9.0-9.0-1317.2Vapour °C (mm Hg)1257416542Freezing Point (°C)-71.54-86.7-984Solvency (Kb Value)79.1na64Maximum Incremental Reactivity (MIR)0.471.480.06Hansen Solubility Parameters (MPA)δd (dispersion)δP (polarity)δH (hydrogen bonding)7.873.723.5184.108.40.20653.53.7220.127.116.11
18 Green Solvent Alternative EkaSol 1 ™EkaSol 1 was compared with MEK, MIBK and Butyl Acetate.Two epoxy clear formulas were prepared as follows:Part ADER 662 Solid Epoxy ResinXyleneMethyl Ethyl KetoneEkaSolTotalPart BAncamide 2060 PolyamideWeight Solids, %Volume Solids, %Specific GravityViscosity: Part A KU KUMixed Viscosity: KU KU
21 Green Solvent Alternative EkaSol 1™EkaSol 1 has a lower, milder odour compared to MEK.EkaSol 1 has a similar evaporation rate to MEK.EkaSol 1 has a measured ER of This is close to the published MEK ER 4.0.EkaSol 1 has slightly less solvent power than MEK in the above epoxy formula. This may vary dependent upon formulation and other factors.
22 Green Solvent Alternative EkaSol 1™Substituting the MEK with EkaSol 1 resulted in a minor 2 – 3 KU (Kreb Units) increase in viscosity.EkaSol 1 works well as a replacement for MEK in epoxy formulas.Moisture content is well below 500 ppm, making it suitable for use in 1 and 2K polyurethane systems.
23 Green Solvent Alternative EkaSol 1™EkaSol 1 is much less Toxic than MEK:MEK EkaSol 1™Oral Toxicity:LD50 Rat (mg/kg) >5500Dermal Toxicity:LD50 Rabbit (mg/kg) >20,000Long Term Organ Damage:Yes NoCentral Nervous System DamageYes No
24 Green Solvent Alternative TergoSol™A safe, effective, efficient and cost effective replacement for Acetone.Benzene-free.Non-carcinogenic.No hazardous air pollutants (HAPs).No ozone-depleting or creator chemicals.Considered an Ultra-Low VOC Solvent (LVOC) in SCAQMD and CARB, exempt in 49 states.VOC (EPA 24): 2.82 g/l VOC.Boeing Spec approved for Aerospace Cleaning.
25 Green Solvent Alternative TergoSol™TergoSol can be used in or as:paint formulations and cleaningink and marker formulations and cleaningadhesive formulations and cleaninghard surface cleaninglubricating greases and oilsaerospace cleaning applicationsautomotive chemicalsnail polish and polish removerTergoSol can also be used as a:surface preparation and precision cleanergeneral purpose surface wipe cleanergeneral and heavy duty degreasinglaboratory and equipment wipe solvent
26 BTEX Solvents are Toxic Benzene, Toluene, Ethyl Benzene, Xylene (BTEX)Proven to be serious risks to human health: asthma, lower birth weights, hearing loss and permanent damage to Central Nervous System.BTEX solvents are major emitters of Volatile Organic Compounds (VOCs) which create smog.BTEX solvents pollute soil and groundwater.
27 Green Solvent Alternative ZemaSol™A safe, efficient, effective and cost-effective replacement for Toluene and Xylene, Parachlorobenzotrifluoride (PCBTF) and Tertiary Butyl Acetate (TBAc).ZemaSol:is formulated to be benzene-free.is non-carcinogenic.does not contain hazardous air pollutants.environmentally hazardous ingredients.Ozone depleters or creators.is VOC-exempt and NPRI-exempt (SCAQMD Ulta low VOC 1.13 g/l).
28 Green Solvent Alternative ZemaSol™ZemaSol is designed for a variety of uses and purposes.ZemaSol can be used as a diluent for:paintscoatingsadhesivesresinssiliconessealantsZemaSol can also be used as a chemical diluent for:printing inklacquersplasticsperfumespesticidesleather tanningparrafin wax
30 Green Solvent Alternative ZemaSol™Experimental Data:ZemaSol™ is a clear liquid with a mild fruity, non-offensive odour.ZemaSol has a specific gravity ofZemaSol evaporated faster than Xylene by a factor ofZemaSol has a pronounced “tail” at end.Aids in flow and levelling and helps prevent unwanted dry spray.
31 Green Solvent Alternative ZemaSol™ZemaSol and XyleneClear Tint BaseChain Stop Alkyd Formulation PropertiesControl FormulaFormula With ZemaSolWeight Solids, %33.3131.97Volume Solids%24.82Specific Gravity0.9420.982Viscosity, KU95.258.1Gloss 20⁰ / 60⁰86.0 / 96.682.5 / 95.8VOC g/l minus exempt solvent628543Dust Free, mins1510Tack Free, mins20Hard Dry, mins30
33 Green Solvent Alternative ZemaSol™Solvency ComparisonsZemaSol has better solvency and solubility than Xylene and its conventional substitutes
34 Green Solvent Alternative ZemaSol™ZemaSol is much less Toxic than Xylene:Xylene ZemaSolOral Toxicity:LD50 Rat mg/kg >6000Dermal Toxicity: >5000Long Term Organ Damage:Yes NoCentral Nervous System Damage
35 Green Solvent Alternative ZemaSol™ConclusionsImproved odour.Improved solubility.Improved Viscosity Control .Reduced overall VOC content.No negative effect on:GlossFlowTackFilm appearanceImproved dry time
36 Summary Issues: Greenwashing Toxicity Long Term chronic exposure Problems with alternative “green” solventsRegulations:Regulations in Massachusetts and CARB comingMIR Value of Solvents becoming increasingly importantOverall VOC content of finished goods decreasing
37 Summary Possible Answers: EkaSol 1™ – replacement for MEK TergoSol™ – replacement for AcetoneZemaSol™ – Replacement for Xylene, TolueneTBAc, PCBTF
38 Green Solvent Alternatives RipaSolreplaces IsoPropyl AlcoholAbbaSolreplaces Styrene monomerIn DevelopmentVOC-exempt Hexane/Heptane replacementVOC-exempt Mineral Spirits replacement(Scheduled release Q1, 2015)