ANCAMINE 2726 Curing Agent

Transcription

1 Epoxy Curing Agents and Modifiers ANCAMINE 2726 Curing Agent DESCRIPTION Ancamine 2726 curing agent is a modified cycloalipatic amine adduct intended for use at ambient temperatures wit liquid epoxy resins. Ancamine 2726 curing agent provides an excellent balance of properties in terms of andling, cure speed and UV durability. BENEFITS Excellent color and color stability Non-blusing Hig gloss films Good cemical resistance APPLICATIONS Self-leveling and screed floorings Solvent-free and ig solid floor and wall coatings Hig solid coatings for metal protection Tile grouts SHELF LIFE At least 24 monts from te date of manufacture in te original sealed container at ambient temperature. Store away from excessive eat and umidity in tigtly closed containers. Do not freeze. TABLE 1: TYPICAL PROPERTIES Appearance: TABLE 2: TYPICAL HANDLING PROPERTIES 4 * Cured wit liquid Bispenol-A based epoxy resin (EEW=190). Footnotes: (1) ASTM D (2) Brookfield RVTD, spindle 4 (3) Percloric Acid Titration (4) Seta CC (5) Tecne GT-3 Gelation Timer (6) ASTM D 5895 Stage III Clear, Ligt Yellow Liquid Color 1 (Gardner) max 2 Viscosity 25 C (mpa.s) Specific 21 C 1.03 Amine Value 3 (mg KOH/g) Equivalent Wt/{H} 115 Recommended Use Level 4 (pr) 60 Gel Time 5 (150g 25 C) (min) Tin Film Set Time 23 C () 7.0 Hardness Sore D 23 C (24) 85 Hardness Sore D 15 C (24) 78 Typical Cure Scedule 2-7 Days STORAGE AND HANDLING Refer to te Safety Data Seet for Ancamine 2726 curing agent. Evonik Corporation, 2017 ANCAMIDE 2726 CURING AGENT June /6

2 SUPPLEMENTARY DATA Tis below data provides additional information on te cure and performance properties of Ancamine 2726 curing agent versus Ancamine 1618 curing agent. Ancamine 2726 curing agent was screened wit non-diluted and diluted resins. Te results in Table 1 sow comparable performance to Ancamine 1618 curing agent TABLE 1: ANCAMINE 1618 AND ANCAMINE 2726 CURING AGENT CURE PERFORMANCE DGEBA, undiluted EEW190 Temp./ºC GT, 150g Persoz, d1/d7 Hardness, d1/d7 Carb. Resist, d1 Persoz, d2/d7 Hardness, d1/d2/d7 Carb. Resist, d2 DGEBA, undiluted EEW190 GT, 150g Mix Viscosity Gloss 20º/60º Hardness, 24/7d Carb. Resist, d1 Gloss 20º/60º Persoz, d2/d7 Hardness, d1/d2/d7 Carb. Resist, d Temp./ºC min s s min mpa.s s / /340 84D/84D 3 10/13 215/270 76D/83D/84D /12 92/98 50D/79D 4 16/20 7/44 40/70 60A/62D/77D / /340 85D/85D /14 210/270 78D/83D/84D /11 100/101 67D/82D /20 36/86 45/75 75A/67D/79D 4 Te UV resistance of Ancamine 2726 curing agent was compared to Ancamine 1618 curing agent by measuring te yellowing index of tin films exposed to UV over 150 ours. As sown in Figure 1, te UV resistance of Ancamine 2726 curing agent is not significantly different tan te UV resistance of Ancamine 1618 curing agent (Figure 1). In addition to UV resistance, films were also examined for carbamation resistance at 15ºC and 25 ºC. As sown in Figure 2, bot curing agents provide ig gloss films at room temperature wit only Ancamine 1618 sowing a low amount of carbamation. Te carbamation is present at 15ºC, but is comparable to oter cycloalipatic curing agents in tis class. Te carbamation resistance at 15ºC can be improved significantly by utilizing a diluent suc as Epodil 748 diluent at 10 wt%. FIGURE 1: YELLOWING INDEX VERSUS UV EXPOSURE TIME FIGURE 2: FILMS CURED AT 15ºC AND 25ºC Evonik Corporation, 2017 ANCAMIDE 2726 CURING AGENT June /6

3 SUPPLEMENTARY INFORMATION FOR METAL PROTECTION Ancamine 2726 curing agent is low viscosity, modified cycloalipatic amine. Te product is intended for use wit a variety of epoxy resin types in te development of ig performance, corrosion resistant coatings for te protection of steel and concrete. In addition, Ancamine 2726 curing agent exibits excellent compatibility wit liquid epoxy resins and terefore ig solid, solvent based coatings can be formulated using tis product, wic can ten be used for a wide variety of industrial maintenance and marine applications. Formulations based on Ancamine 2726 curing agent can also be accelerated to enance dry speed bot at ambient and low temperature, using Ancamine K54 (penolic, tertiary amine accelerator). STARTING POINT FORMULATIONS: Appendix 1 contains preliminary starting point formulations based on Ancamine 2726 curing agent for an anti-corrosive primer. Formulation A2726P1 is a ig volume solids (76%), anticorrosive primer, based on a combination of liquid bispenol A diglycidyl eter (EEW 190) and solid epoxy resin solution (EEW=550). Te formulation as a 1:1 mix ratio by volume. Te initial viscosity of te formulated system is ~2,000 mpa.s wit a total VOC of 210 g/l. Te primer formulation is compatible wit a variety of different let down solvents (including xylene, n-butanol, MIBK, metoxy-propanol, etc) and can be furter let down if required for additional spray applications. Te coating formulation can be applied wit conventional spray equipment or brus applied to te steel substrate and as a pot life of 3 rs. Formulation A1618P1 is a ig volume solids (76%), anticorrosive primer, based on a combination of liquid bispenol A diglycidyl eter (EEW 190) and solid epoxy resin solution (EEW=550). Te formulation as a 1:1 mix ratio by volume. Te initial viscosity of te formulated system is 2,000 mpa.s wit a total VOC of 210 g/l. Te primer formulation is compatible wit a variety of different let down solvents (including xylene, n-butanol, MIBK, metoxy-propanol, etc) and can be furter let down if required for additional spray applications. Te coating formulation can be applied wit conventional spray equipment or brus applied to te steel substrate and as a pot life of 3 rs. Te above formulations ave been evaluated for corrosion resistance properties using salt spray and Cleveland Humidity test. After 2,000 rs exposure, te coatings exibit excellent corrosion resistance. For comparative purposes, Ancamine 1618 curing agent was also included in te test study as te industry standard reference. In all te corrosion resistance tests carried out, bot Ancamine 2726 and Ancamine 1618 curing agents demonstrated comparable performance. PERFORMANCE EVALUATION: All coatings were evaluated in 5% salt spray, and in continuous umidity at 35 C. Te primer were applied to grit blasted, ot rolled steel (SA2.5), using conventional spray equipment, in double coats to give coatings wit a µ (3-4 mils) dry film tickness (DFT). In salt spray, (ASTM B-117) panels were scribed and evaluated for field blisters using te US Federal Standard Test Metod 141a, Metod 6461 and te scribe creep was rated in accordance wit ASTM D CORROSION RESISTANCE: Anti-corrosion resistant primers based on Ancamine 2726 and Ancamine 1618 curing agents, were evaluated for salt spray and constant umidity resistance. Te results obtained are presented in Table 2 and Table 3. TABLE 2: SALT SPRAY RESISTANCE ANCAMINE 2726 AND ANCAMINE 1618 SYSTEMS Formulation Scribe Creep Field Blistering 1,000 rs 2,000 rs 1,000 rs 2,000 rs A2726P A1618P % salt spray, cabinet temperature 35ºC - ASTM B-117, film tickness µ Rating: ASTM D714: 10 = Best (no blisters), 0 = Worst, F= fe TABLE 3: CLEVELAND HUMIDITY ANCAMINE 2726 AND ANCAMINE 1618 SYSTEMS Formulation Field Blistering Appearance A2726P1 10 No defects A1618P1 10 No defects Continuous 100% umidity exposure - ASTM D-2247, cabinet temperature 50ºC Film tickness µ. Rating: 10 = Best, 0 = Worst For blister size, rating 10 = no blisters observed PERFORMANCE RESULTS: Ancamine 2726 curing agent can readily be formulated into a wide range of anti-corrosive primers and top coats depending upon te epoxy resin system required. General andling properties of te formulated coatings are comparable to Ancamine 1618 curing agent and coatings can easily be applied using a range of application metods suc as brus, roller and spray application. In accelerated weater testing, corrosion resistance indicates tat Ancamine 2726 curing agent delivers te ig level of corrosion resistance typically observed for tis class of curing agent. Resistance up to 2,000 rs resistance was easily acieved for all systems tested wit no noticeable damage around te scribe during tis period. Evonik Corporation, 2017 ANCAMIDE 2726 CURING AGENT June /6

4 CORROSION AND HUMIDITY RESISTANCE FOLLOWING 2,000 HRS ACCELERATED SALT SPRAY (ASTM B117) EXPOSURE ANTI-CORROSIVE PRIMER A2726P1 AND A1618P1 Salt Spray ASTM B117 After 2,000 Hours Cleveland Humidity Test After 2,000 ours A2726P1 Ancamine 2726 A1618P1 Ancamine 1618 A2726P1 Ancamine 2726 A1618P1 Ancamine 1618 Before Scribe Creep After Scribe Creep NOTE: Coatings applied using conventional spray equipment. 2 coatings applied to acieve total dry film tickness µ Evonik Corporation, 2017 ANCAMIDE 2726 CURING AGENT June /5

5 APPENDIX I: PRIMER FORMULATIONS FORMULATION A2726P1 Anti-Corrosive Primer A-COMPONENT (G) 1. Epoxy Resin Bis A diglycidyl eter (EEW550) Epoxy Resin Bis A diglycidyl eter (EEW190) Reactive Diluent Epodil Additive Anti-Terra U Additive Bentone SD Additive Aerosil Pigment Heucopos ZP10 Heubac Filler Bayferrox 130M Bayer Filler Quartz # 400 mes Additive Epodil LV5 Evonik Solvent PM Solvent Solvent Xylene 2.21 B-COMPONENT (G) 1. Curing Agent Ancamine 2726 Evonik Additive Anti-Terra U Additive Bentone SD Additive Cymel Filler Quartz # 400 mes Additive Aerosil Solvent PM Solvent Additive Epodil LV5 Evonik Additive Ancamine K54 Evonik Solvent Xylene TOTAL (A+B) For conventional spray application requires 10 to 15 % dilution TECHNICAL DATA Mixing ratio Weigt Volume 100 A :83 B 1:1 Solid Conent (Volume %) Mix Viscosity 25 C mpa.s 2,000 Density (g/ml) VOC g/l 210 PVC % Solid Content (Weigt %) Evonik Corporation, 2017 ANCAMIDE 2726 CURING AGENT June /6

6 APPENDIX I: PRIMER FORMULATIONS FORMULATION A1618P1 Anti-Corrosive Primer A-COMPONENT (G) 1. Epoxy Resin Bis A diglycidyl eter (EEW550) Epoxy Resin Bis A diglycidyl eter (EEW190) Reactive Diluent Epodil Additive Anti-Terra U Additive Bentone SD Additive Aerosil Pigment Heucopos ZP10 Heubac Filler Bayferrox 130M Bayer Filler Quartz # 400 mes Additive Epodil LV5 Evonik Solvent PM Solvent Solvent Xylene 2.21 B-COMPONENT (G) 1. Curing Agent Ancamine 2726 Evonik Additive Anti-Terra U Additive Bentone SD Additive Cymel Filler Quartz # 400 mes Additive Aerosil Solvent PM Solvent Additive Epodil LV5 Evonik Additive Ancamine K54 Evonik Solvent Xylene TOTAL (A+B) For conventional spray application requires 10 to 15 % dilution TECHNICAL DATA Mixing ratio Weigt Volume 100 A :83 B 1:1 Solid Conent (Volume %) Mix Viscosity 25 C mpa.s 2,000 Density (g/ml) VOC g/l 210 PVC % Solid Content (Weigt %) EVONIK CORPORATION 7201 Hamilton Blvd. Allentown, PA Outside U.S. and Canada For Tecnical Information and Support: Americas: picus@evonik.com EMEA: apcse@evonik.com Disclaimer Te information contained erein is offered witout carge for use by tecnically qualified personnel at teir discretion and risk. All statements, tecnical information and recommendations contained erein are based on tests and data wic we believe to be reliable, but te accuracy or completeness tereof is not guaranteed and no warranty of any kind is made wit respect tereto. Evonik Corporation, 2017 ANCAMIDE 2726 CURING AGENT June /