DuPont Viton GBL-600S

Transcription

1 DuPont Viton GBL-600S Technical Information Rev. 2, July 2010 Made with Advanced Polymer Architecture Product Description DuPont Viton GBL-600S is a next generation, easy processing, peroxide cured 68% fluorine fluoroelastomer based on new Advanced Polymer Architecture technology. Compared to the original Viton GBL-900, Viton GBL-600S exhibits processability coupled with similar or improved fluids resistance in aromatic hydrocarbons, alcohols, water, steam, and acids. Features Cures exceptionally fast to a high state of cure Exhibits improved mold release/mold fouling properties compared to Viton GBL-900 and Viton GBL-200 Exhibits improved mold flow, less shear sensitivity, and lower extruder die swell for a 65 Mooney FKM Exhibits excellent physical properties with high elongation, both original and aged Exhibits similar heat, fluids, and low temperature resistance compared to Viton GBL-900 and Viton GBL-200 Exhibits excellent compression set resistance with short (2 hr) or no postcure Product Description: Viton GBL-600S Chemical Composition: Copolymer of hexafluoropropylene vinylidene fluoride, and tetrafluoroethylene with a cure site monomer Physical form Sheet Appearance Off white Odor None Mooney Viscosity, ML at 121 C 65 Specific Gravity 1.84 Storage Stability Excellent Fluorine, % ~68 Processing A load factor of >70% for internal mixing of Viton GBL-600S is recommended. The recommended process aids for Viton GBL-600S are 1 phr of Struktol HT 290, or combinations of Armeen with carnauba wax or Struktol WS 280. The use of Diak #8 is NOT recommended as it causes poor mold release and high compression set. Diak #7 (TAIC) is the recommended coagent for all Viton GBL-600S compounds, and is usually used at a 2.5 phr level or lower unless high modulus is needed. High levels of TAIC can bleed out and cause molding flaws. Safety and Handling Before handling or processing Viton GBL-600S, be sure to read and be guided by the suggestions in DuPont technical bulletin Handling Precautions for Viton and Related Chemicals. Contents Table 1 Comparison of General Properties of Viton GBL-600S compared to Viton GBL-900 Table 2 Viton GBL-600S Table 3 Viton GBL-600S (GBL-S) Process Aid Study Table 4 Viton GBL-600SScreening DOE on Diak #7 and Peroxide Levels

2 Table 1. Comparison of General Properties of DuPont Viton GBL-600S and Viton GBL-900 GBL-900 GBL-600S Viton GBL Viton GBL-600S 100 Zinc Oxide 3 3 N990 (MT Black) Diak #7 (TAIC) 3 3 Luperox 101XL Total phr Mooney Scorch at 121 C Minimum, MU pt rise, min pt rise, min pt rise, min > ODR at 162 C, 3 arc, 100 range, 30 min clock ML, dn.m ts2, min t'50, min t'90, min MH, dn.m MDR 2000 at 177 C, 0.5 arc, 100 range, 6 min clock ML, dn.m ts2, min t'50, min t'90, min t'95, min MH, dn.m Rosand Capillary Rheometer at 100 C, 1.5 mm die, L/D = 0/1 and 10/1 Piston Speed, mm/min Shear Rate, s 1 Pressure, MPa (L/D = 0/1 die) Physical Properties at R.T. Original, cure 7' at 177 C, no postcure M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt Hot Tear Strength at 150 C Original, cure 7' at 177 C, no postcure Tear Die B, N/mm Physical Properties at R.T. Original, cure 7' at 177 C, postcured at 232 C 16 hr 2 hr M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt Compression Set, Method B, O-rings 22 hr at 200 C no postcure postcured at 232 C hr at 200 C no postcure postcured at 232 C 57 56

3 Table 1. Comparison of General Properties of DuPont Viton GBL-600S and Viton GBL-900 (cont.) GBL-900 GBL-600S Physical Properties at R.T. Heat aged 70 hr at 250 C in oven (slabs postcured) M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt Pt change 3 2 % change, M % change, M % change, Tb 8 2 % change, Eb 2 6 Physical Properties at R.T. Heat aged 70 hr at 275 C in oven (slabs postcured) M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt Pt change 2 1 % change, M % change, M % change, Tb % change, Eb 8 25 Physical Properties at R.T. Heat aged 168 hr at 150 C in oven (slabs postcured) M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt Pt change 3 4 % change, M % change, M % change, Tb % change, Eb Volume Swell, % Volume Swell After Immersion time and temperature as noted Fuel C, 168 hr at 23 C Methanol, 168 hr at 23 C Water, 168 hr at 100 C Compound Specific Gravity

4 Table 2. DuPont Viton GBL-600S Filler Study Table 2 is a filler study where various levels of MT Black, and different mineral fillers are tested in GBL-600S. The compounds all contain process aid Armeen. 5-MT Black 30-MT Black 60-MT Black 40-Woolast. 40-BaSO 4 Viton GBL-600S N990 (MT Black) Wollastocoat 40 Blanc Fixe (BaSO 4 ) 40 Armeen Diak #7 (TAIC) Varox DBPH Total phr Mooney Scorch at 121 C Minimum, MU pt rise, min pt rise, min > pt rise, min ODR at 162 C, 3 arc, 100 range, 30 min clock ML, dn.m ts2, min t'50, min t'90, min MH, dn.m MDR 2000 at 177 C, 0.5 arc, 100 range, 6 min clock ML, dn.m ts2, min t'50, min t'90, min t'95, min MH, dn.m Physical Properties at R.T. Original, cure 5' at 177 C, no postcure M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt Physical Properties at R.T. Original, cure 5' at 177 C, postcured 2 hr at 232 C M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt Physical Properties at R.T. Heat aged 70 hr at 250 C in oven M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt pt change % change, M % change, M % change, Tb % change, Eb continued

5 Table 2. DuPont Viton GBL-600S Filler Study (continued) 5-MT Black 30-MT Black 60-MT Black 40-Woolast. 40-BaSO 4 Physical Properties at R.T. Heat aged 70 hr at 250 C in oven M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt pt change % change, M % change, M % change, Tb % change, Eb Volume Change, % Compression Set, Method B, O-rings 2 hr 2 hr 2 hr 2 hr 2 hr 22 hr at 200 C No postcure Postcured at 232 C Volume Swell After Immersion Fuel C, 168 hr at 23 C Methanol, 168 hr at 23 C Water, 168 hr at 100 C Compound Specific Gravity

6 Table 3. DuPont Viton GBL-600S Process Aid Study In Table 3 various process aids are evaluated in Viton GBL-600S. While Armeen is the preferred process aid due to its excellent mold release, it can be seen that Armeen accelerates the cure rate and hurts scorch life. Armeen also seems to retard the completion of cure in the short postcure cycle. Compounds with Armeen do better with a 6 hr rather than 2 hr postcure. Struktol and carnauba wax did not seem to effect scorch life as much as Armeen. Compounds with 1 to 1.5 phr of process aid seems to need the longer 6 8 hr postcure to optimize properties. Struktol seems to aid mold flow best followed by carnauba wax (see spider mold results). New process aid Struktol HT290 was developed after this study was run, but recent results indicate that at a 1 phr level it tends to be superior to a Armeen /Strucktol system. A26-01 GBL-600S no PA A26-02 A26-03 A phr Car. Wax A26-05 A phr Viton GBL-600S Zinc Oxide N990 (MT Black) Armeen Struktol Carnauba Wax 1 Diak #7 (TAIC) Varox DBPH Total phr Banbury mixed right side up (polymer/metal oxide/n990/peroxide in ram down) with process aids and TAIC added at a 70 C sweep. Mooney Scorch at 121 C Minimum, MU pt rise, min > > > pt rise, min 12.8 > pt rise, min MDR 2000 at 177 C, 0.5 arc, 100 range, 6 min clock ML, dn.m ts2, min t'50, min t'90, min t'95, min MH, dn.m Rosand Capillary Rheometer at 100 C, 1.5 mm die, L/D = 0/1 and 10/1 Piston Speed, Shear Rate, mm/min s 1 Pressure, MPa (L/D = 0/1 short die) Spider Mold Flow Test Sprue ", ~ 1.6 mm, cure 7' at 177 C Total shot weight, gm Weight of spider, gm Fill factor, % Physical Properties at R.T. Original, cure 7' at 177 C, no postcure M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt continued

7 Table 3. DuPont Viton GBL-600S Process Aid Study (continued) A26-01 GBL-600S no PA A26-02 A26-03 A phr Car. Wax A26-05 A phr Physical Properties at R.T. Original, cure 7' at 177 C, 2 hr postcured at 232 C M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt Physical Properties at R.T. Original, cure 7' at 177 C, 5.5 hr postcured at 232 C M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt Physical Properties at R.T. Original, cure 7' at 177 C, 8 hr postcured at 232 C M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt Physical Properties at R.T. Heat aged 70 hr at 250 C oven (after 2 hr at 232 C postcure) M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt pt change % change, M % change, M % change, Tb % change, Eb Physical Properties at R.T. Heat aged 70 hr at 250 C oven (after 5.5 hr at 232 C postcure) M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt pt change % change, M % change, M % change, Tb % change, Eb Physical Properties at R.T. Heat aged 70 hr at 250 C oven (after 8 hr at 232 C postcure) M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt pt change % change, M % change, M % change, Tb % change, Eb

8 Table 3. DuPont Viton GBL-600S Process Aid Study (continued) A26-01 GBL-600S no PA A26-02 A26-03 A phr Car. Wax A26-05 A phr Compression Set, Method B, O-rings 22 hr at 200 C no postcure postcured 2 hr at 232 C postcured 5.5 hr at 232 C postcured 8 hr at 232 C hr at 200 C no postcure postcured 2 hr at 232 C postcured 5.5 hr at 232 C postcured 8 hr at 232 C Compression Set, Method B, Plied Discs 22 hr at 200 C postcured 2 hr at 232 C postcured 5.5 hr at 232 C postcured 8 hr at 232 C hr at 200 C postcured 2 hr at 232 C postcured 5.5 hr at 232 C postcured 8 hr at 232 C Volume Swell After Immersion time and temperature as noted Fuel C, 168 hr at 23 C CM15 Fuel, 168 hr at 23 C Water, 168 hr at 100 C Low Temperature Properties Tg by DSC, C no postucre postcured 2 hr postcured 5.5 hr postcured 8 hr

9 Table 4. Viton GBL-600S Screening DOE on Diak #7 Peroxide Levels A screening design of experiments (DOE) was run on commercial Viton GBL600-S where levels of peroxide and Diak #7 (TAIC) coagent were varied from 0.5 to 5 phr. The data shows that, as expected, the Diak #7 is the primary crosslinker controlling the state-of-cure, and the peroxide controls the rate-of-cure which effects the scorch and cure speed of this new Advanced Polymer Architecture technology Viton fluoroelastomer. It should be noted that of peroxide and coagent is too low for good curing. A level of 1.0 phr and above is better. A03-01 A03-02 A03-03 A03-04 A03-05 A03-06 A03-07 A03-08 A03-09 A03-10 Viton GBL-600S Zinc Oxide N990 (MT Black) Diak #7 (TAIC) Luperox 101XL Total phr Mooney Scorch at 121 C Minimum, MU pt rise, min >30 > > > pt rise, min > > pt rise, min ODR at 162 C, 3 arc, 100 range, 30 min clock ML, dn.m ts2, min t'50, min t'90, min MH, dn.m MDR 2000 at 177 C, 0.5 arc, 100 range, 6 min clock ML, dn.m ts2, min t'50, min t'90, min t'95, min MH, dn.m Spider Mold Flow Test ", 1.6 mm sprue/1900 psi, ~131 bar transfer pressure, cure 5' at 177 C Spider weight, gm Scrap in transfer pot, gm Fill factor, % Physical Properties at R.T. Original, cure 5' at 177 C, no postcure M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt (continued)

10 Table 4. Viton GBL-600S Screening DOE on Diak #7 Peroxide Levels (continued) A42-01 A42-02 A42-03 A42-04 A42-05 A42-06 A42-07 A42-08 A42-09 A42-10 Diak #7/TAIC level Luperox 101XL level Physical Properties at R.T. Original, cure 5' at 177 C, postcured 2 hr at 232 C M10, MPa M100, MPa Tb, MPa Eb, % Hardness, A, pt Compression Set, Method B, O-rings 22 hr at 200 C no postcure postcured 2 hr at 232 C Physical Properties at R.T. Heat aged 70 hr at 250 C in oven (run on postcured samples) M100, MPa Tb, MPa Eb, % Hardness, A, pt pt change % change, M % change, Tb % change, Eb Physical Properties at R.T. Heat aged 70 hr at 275 C in oven M100, MPa Tb, MPa Eb, % Hardness, A, pt pt change % change, M % change, Tb % change, Eb Physical Properties at R.T. ASTM test oil 1006, aged 168 hr at 150 C in oven M100, MPa Tb, MPa Eb, % Hardness, A, pt pt change % change, M % change, Tb % change, Eb Volume change, % Physical Properties at R.T. Fuel C, aged 168 hr at 40 C in oven M100, MPa Tb, MPa Eb, % Hardness, A, pt pt change % change, M % change, Tb % change, Eb Volume change, % (continued)

11 Table 4. Viton GBL-600S Screening DOE on Diak #7 Peroxide Levels (continued) A42-01 A42-02 A42-03 A42-04 A42-05 A42-06 A42-07 A42-08 A42-09 A42-10 Diak #7/TAIC level Luperox 101XL level Physical Properties at R.T. Water, distilled aged 168 hr at 100 C in oven M100, MPa Tb, MPa Eb, % Hardness, A, pt pt change % change, M % change, Tb % change, Eb Volume change, % Physical Properties at R.T. Sulfuric acid 96% aged 168 hr at 70 C M100, MPa Tb, MPa Eb, % Hardness, A, pt pt change % change, M % change, Tb % change, Eb Volume change, %

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13 Appendix List of Proprietary Chemicals and Ingredients Sources of compounding ingredients used in this bulletin are listed here. This is not to imply that comparable ingredients from other sources might not be equally usable. Material Composition Supplier Albagloss 1 Calcium carbonate Specialty Minerals, Inc (precipitated) New York, NY Armeen 2 1-Octadecanamine, N-Octadecyl Akzo Nobel Polymer Chemicals L.L.C Chicago, IL Blanc Fixe Barium Sulfate Whittaker, Clark, & Daniels (precipitated) South Plainfield, NJ Carnauba wax carnauba wax Frank B. Ross Co., Inc Jersey City, NJ Diak TM 7 TAIC triallyl isocyanurate DuPont Wilmington, DE Diak TM 8 TMAIC - trimethallyl isocyanurate DuPont Wilmington, DE Luperco 101XL % active dispersion of Atofina Chemicals, Inc. 2,5-dimethyl-2-5-Di- Philadelphia, PA (t-butyl-peroxy)hexyne-3 Nyad Calcium metasilicate Nyco Minerals, Inc Willsboro, NY PAT 777 Fatty acid derivative / wax IDE Processes International Sales LLC Kew Gardens, NY Struktol HT Blend of fatty acid derivatives Struktol Co. of America Stow, OH Struktol WS-280 Silicone-organic compounds Struktol Co. of America Stow, OH Trigonox B 2 45% active dispersion of 2,5- Akzo Nobel Polymer Chemicals L.L.C dimethyl-2-5-di-(t-butyl-peroxy) hexyne-3 Chicago, IL Varox 130XL 6 45% active dispersion of 2,5- R.T. Vanderbilt Co. dimethyl-2-5-di-(t-butyl-peroxy) hexyne-3 Norwalk, CT Varox KE 6 40% active dispersion of alpha R.T. Vanderbilt Co -alpha -Di(t-butylperoxy)- Norwalk, CT diisopropylbenzene Varox DBPH % active dispersion of 2,5- R.T. Vanderbilt Co dimethyl-2-5-di-(t-butyl-peroxy) hexane Norwalk, CT Varox DBPH50-HP 6 45% active dispersion of 2,5- R.T. Vanderbilt Co dimethyl-2-5-di-(t-butyl-peroxy) Norwalk, CT hexane with an additive continued

14 Appendix List of Proprietary Chemicals and Ingredients (continued) Material Composition Supplier Varox DCP-40KE 6 40% active dispersion of Dicumyl R.T. Vanderbilt Co Peroxide Norwalk, CT Viton fluoroelastomer Fluorinated synthetic rubber (FKM) DuPont Wilmington, DE VPA No. 2 Ricebran wax DuPont Wilmington, DE Wollastocoat Calcium metasilicate Nyco Minerals, Inc (treated) Willsboro, NY Trademark of Pfizer Corporation. 2 Trademark of Akzo Nobel Polymer Chemicals L.L.C. 3 Trademark of Atofina Chemicals, Inc. 4 Trademark of Nyco Minerals, Inc. 5 Trademark of Struktol Co. of America. 6 Trademark of R.T. Vanderbilt Co.

15 Test Procedures Property Measured Compression Set Compression Set Low Temperature Compression Set, O-Rings Hardness Mooney Scorch Test Procedure ASTM D3955, Method B (25% deflection) ASTM D1299, Method B (25% deflection) ASTM D1414 ASTM D2240, durometer A ASTM D1646, using the small rotor. Minimum viscosity and time to a 1-, 5-, or a 10-unit rise are reported. Mooney Viscosity ASTM D1646, ten pass 100 C and 121 C ODR (vulcanization characteristics measured with an oscillating disk cure meter) Property Change After Oven Heat-Aging ASTM D2084 ASTM D573 Stress/Strain Properties 100% Modulus ASTM D412, pulled at 8.5 mm/s (20 in/min) Tensile Strength Elongation at Break Stiffness, Torsional, Clash-Berg Temperature Retraction Volume Change in Fluids ASTM D1043 ASTM D1329 ASTM D471 Note: Test temperature is 24 C, except where specified otherwise.

16 Visit us at viton.dupont.com Contact DuPont at the following regional locations: North America Latin America Europe, Middle East, Africa Greater China ASEAN Japan The information set forth herein is furnished free of charge and is based on technical data that DuPont believes to be reliable and falls within the normal range of properties. It is intended for use by persons having technical skill, at their own discretion and risk. This data should not be used to establish specification limits nor used alone as the basis of design. Handling precaution information is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety hazards. Since conditions of product use and disposal are outside our control, we make no warranties, express or implied, and assume no liability in connection with any use of this information. As with any product, evaluation under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate or a recommendation to infringe on patents. Caution: Do not use in medical applications involving permanent implantation in the human body. For other medical applications, discuss with your DuPont customer service representative and read Medical Caution Statement H Copyright 2010 DuPont. The DuPont Oval Logo, DuPont, The miracles of science, Diak and Viton are trademarks or registered trademarks of E.I. du Pont de Nemours and Company or its affiliates. All rights reserved. (06/04) Reference No. VTE-A D0710