1 Performance Optimizing Productivity & Improving 3M Specialty Additives 3MTM DynamarTM RA 5300 High Performance Rubber AdditiveProductivityPerformanceOptimizing& Improving
2 AgendaMarket StatusIntroducing 3M™ Dynamar™ RA High Performance Rubber AdditiveTest methods and resultsSummary and ConclusionsQuestions
3 Chemical resistance impacts compounding and affects processing Market StatusFluorine – Carbon BondChemical and Heat ResistanceChemical resistance impacts compounding and affects processingPolymer rich compoundsDry, rough extrusionAdditives are used to improve processingWaxes, oilsWhat properties are sacrificed? Is there an alternative?
4 Introducing 3MTM DynamarTM RA 5300 High Performance Rubber Additive Unique 3M chemistryBased on experimental results described in this presentation, RA 5300 offers both processing and performance improvementsImprovements were seen in extrusion and injection molding with minimal affect on performance properties
6 Equipment / Experiment Set-up Common medium viscosity o-ring grade copolymer usedIndustry standard compound; 100 parts per hundred rubber (PHR) of the elastomer base, 30 PHR of N-990 carbon black, 6 PHR of calcium hydroxide, and 3 PHR of magnesium oxideFour compounds comparedControlCarnauba Wax,Struktol® WS-280,New 3M™ Dynamar™ RA 5300
8 Tests performed Moving Die Rheometer Viscosity Physical Properties Heat ResistanceCompression SetCapillary RheometerGarvey Die ExtrusionMini-Injection PressLoading EvaluationTGA
9 Experiments and Results MDR Cure and Scorch Comparison Results
10 Experiments and Results MH and Mooney Viscosity Results
11 Experiments and Results Physical Property Comparison
12 Experiments and Results Compression Set Comparison
13 Experiments and Results Heat Aging Property Loss Comparison
14 Experiments and Results Shear Stress Comparison at 100°C RA 5300 was comparable to the Carnauba WaxAt rates of approximately 1000/s, all of the compounds have similar flow properties
15 Experiments and Results Shear Stress Comparison at 150°C At shear rates below 500/s RA 5300 exhibits better flowAt and above 500/s, the Carnauba Wax containing compound results in a considerably lower stress
16 Experiments and Results Garvey Die Extrusion Comparison
17 Experiments and Results Mold Release Comparison Samples molded in the half round spiral tool all released from the groove easily and allowed for relatively simple part removalAll of the samples, except those produced using the RA 5300, stuck in the grooves of the deeper, more submerged sample, pulling the part away from the nozzle tip and having to be pried out of the mold with a wooden toolParts molded using the RA 5300 released totally from the grooveControlRA 5300
18 Experiments and Results The Effect of RA 5300 Loading on Properties
20 SummaryBased on these results, 3M™ Dynamar™ RA 5300 could offer both processing and performance improvements in comparison to other FKM processing aidsSharper edges and smoother surfaces were achieved in Garvey Die extrusionsImproved mold release and fouling in injection moldingIncremental processing improvements can be achieved with increased loadings of the RA 5300, with 0.5 and 1.0 PHR being the optimal loading rangeMinimal affect on rheological and performance propertiesThermally stable up to 280°C
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