Carbodeon NanoMaterials Realising Diamond Superior Potential Within Thermal Management. Gavin Farmer Carbodeon Business Development

Transcription

1 Carbodeon NanoMaterials Realising Diamond Superior Potential Within Thermal Management Gavin Farmer Carbodeon Business Development

2 Material selection: Compromise.. Won t meet next gen. product specs Extreme Too brittle material Not strong enough Compromise material Too expensive Doesn t fit manufacturing process

3 Material design: Combine.. Extreme material Base Polymer Fillers & Binders Compromise material Too expensive

4 Material design: Combine... and Optimise Extreme material Base Polymer Fillers & Binders Compromise material Something Extreme! Too expensive Optimised properties, process, cost.

5 Carbodeon NanoDiamond Extreme Material. Chemically Inert Strength Hardness Optical Properties Surface Friction Dielectric Thermal Conductivity

6 Carbodeon NanoDiamond Extreme Material. Chemically Inert Strength Hardness Optical Properties Surface Friction Dielectric Thermal Conductivity With some unusual combinations

7 Carbodeon NanoDiamond Extreme Material, made useful.... in your (many, many) applications

8 Where, What, & How Plating and Anodising Polymer Coatings Thermal Polymers Nicanite Carbon Nitride

9 Polymer Coatings NanoDiamond powder, suspension, or dispersion Hard particles bonded to parent material. Polymer reinforced/ restructured at molecular scale 1. PTFE and FEP coatings aqueous and solvent. Wear improvement up to 50% Friction reduction up to 66% Surface finish improved 85% 2. Consumer product: unnamed coating formulations on unnamed products: Wear performance improved by >3X

10 Plating and Anodising Nanodiamond suspension or dispersion added to solutions Finer grain structure + embedded hard particles 1. Industrial machine parts with hard chrome: durability improved from 3.5 to 5.5 years 2. Gold plated electrical connectors: wear performance improved by 100% 3. Electroless nickel: Microhardness increased from 800 HV to almost 1100 HV

11 Thermal Management Nanodiamond powders added to existing polymers & composites Thermal conductivity without compromise to other properties Electronics & Displays: Thermal, dielectric and optical properties LED & OLED: Thermal, dielectric and optical properties Low Carbon Vehicles: Additional Structural, frictional, lightweighting &Tg improvements

12 Where, What, & How Detonation Produced Nanodiamond 4-6 nm diamond particles

13 Where, What, & How Detonation Produced Nanodiamond 4-6 nm diamond particles Sp3 Diamond Core Graphitic facets

14 Where, What, & How Detonation Produced Nanodiamond 4-6 nm diamond particles Sp3 Diamond Core With surface functional groups Graphitic facets

15 udiamond Grades Blend grade: also contains graphite Agglomerated, purified NanoDiamond grades Nanodiamond Graphite Metallic impurity

16 udiamond Grades Blend grade: also contains graphite Agglomerated, purified NanoDiamond grades Tuned & Monofunctionalised Surface Chemistry Nanodiamond Graphite Metallic impurity

17 udiamond Grades Blend grade: also contains graphite Agglomerated, purified NanoDiamond grades Tuned & Monofunctionalised Surface Chemistry Single digit, fully-dispersed, high end grades with choice of solvents Nanodiamond Graphite Metallic impurity

18 udiamond Portfolio The Carbodeon Difference: Purity Choice of Surface Chemistry Dispersion Stability Choice of Solvents Application Development New Materials pipeline Powders Suspensions Dispersions

19 udiamond Portfolio - Vivace and Andante Tuned Chemistry Vivace udiamond Vivace A zeta-positive, 5 wt.% aqueous ND suspension Agglomerated, zeta potential up to + 37 mv Standard grade for plating within acidic region Zeta Potential (mv) A zeta-positive, 5 wt.% aqueous ND dispersion Dispersion stable within ph range of 3 to 6 Zeta potential up to + 52 mv Special grade for plating within acidic region Singe Digit ND Dispersion D90 = 4.6 nm ZP (mv) ph Andante udiamond Andante Zeta potential (mv) ZP (mv) ph Dispersion stable within ph 3 to

20 udiamond Portfolio Vox - Monofunctionalised Chemistry A new, patented highly zeta negative nanodiamond material Powders Aqueous dispersion, 5 wt.% NMP, 2 wt % NEP, 1 wt% Other solvents on their way Applications Paints, resins, fluoropolymer Thermal polymers Singe Digit ND Dispersion Particle size distribution Fully carboxylated surface Zeta potentials up to -71 mv Dispersion stable in ph 5 to 12 Morpohology COOH D90 = 6.61 nm zp (mv) Dispersion stability in ph range 2 to ph Robust stability within ph 5 to

21 Hydrogen Development Product H New, patented highly zeta positive nanodiamond powder and dispersion Fully hydrogenated surface Reduced hydrophilicity Zeta potentials up to + 68 mv Dispersion stable in ph 3 to 9 D90 = 4.91 nm Dispersion stability in ph range 2 to Morphology Singe Digit ND Dispersion Powders Aqueous dispersion, 3.5 wt.%zeta potential (mv) Other solvents on their way Robust stability within ph 3 to ph

22 Where, What, & How M SA AG UC IC E Unfortunately, it isn t as simple as this!

23 Where, What, & How NanoDiamond Material Selection Material and Process Understanding Property Requirements, Test Methods, Economics Dispersion Methods & Process Optimisation Communication

24 Application Example: PA66 Thermoplastic with Improved Thermal Conductivity

25 PA-66 Thermal Compounds Applications Electronics industries - Thermal interfaces LED and OLED lightning systems Automotive components E-drive systems Lithium ion batteries Existing solutions: Up to 50 wt.% mineral filler loadings Boron nitride and aluminum oxide particles Higher concentrations result in impaired mechanical properties, heavy wear of processing tools and excessive compound weight

26 PA-66 Thermally Conducting and Electrically Insulating Compound Carbodeon objective: Enhanced heat dissipation Reduced tool wear Improved or enhanced compound mechanical properties Reduced component weight and size Reduced cost? How: Capitalizing diamond thermal conductivity, ND particle small size and spherical form Optimizing electrostatic interaction between parent polymer and ND additive, by ND surface optimization Agglomeration control, via optimized processing

27 Nanodiamond Advanced Thermal Additive for Polymers Material properties Diamond thermal conductivity Dielectric constant: 3.4 Electric resistivity: 7.5 x 109 Ohms per meter Small sized, spherical Density: g/cm3 Highly tunable surface for optimizing affinity to parent polymer Ability to improve both thermal and mechanical properties Carbodeon activity Carbodeon active within both thermoplastic, thermoset and other heat dissipation materials Patented results Materials, Thermal Conductivity, W/mK Diamond Silver 0 Copper Gold

28 Compound Manufacturing and Analyses Materials: PA-66: Zytel 135F Boron Nitride: ESK Boronid thermal filler, 15 μm Nanodiamond: Carbodeon various high end nanodiamond powders Processing: Compounding: Xplore15 micro-compounder Injection molding: Thermo-Haake Minijet, 25*25*3 mm mold Thermal analyses: Laser flash method (ISO 18755; LFA 447, Netzsch GmbH) The measured value is thermal diffusivity a, which value is measured in three spatial directions, i.e. x-, y, and z directions (through-plane = z-sample, in-plane parallel to the molding direction = y-sample, inplane perpendicular to the molding direction = x-sample). The measurements were carried out at room temperature (25 C). The sample densities (ρ) were measured by the Archimedes method. The measurement on the z-sample was used to calculate the specific heat CP. Using the density ρ, CP, and a, the thermal conductivity was calculated according to l =a CP ρ. z y x

29 PA-66 Thermal Compound, 20 wt.% Overall Filler Loading High grade ND, partially optimized electrostatic interaction 1,6 Thermal conductivity in W/mK References: neat PA-66; compound 20 wt.% BN loading Processing: Ball milled: BN + ND powder ball milled and extruded in one sequence > 22% improvement in overall thermal conductivity by replacing 1.5 wt.% of commercial solution filler loadings with ND s 1,4 1,2 1 in-plane (x/y) Average (x/y/z) 0,8 0,6 0,4 0,2 0 PA BN , ball milled

30 PA-66 Thermal Compound, 45 wt.% Overall Loading High grade ND, optimized electrostatic interaction 5 4,5 Thermal coductivity in W/mK References: neat PA-66; compound 45 wt.% BN loading Processing: Ball milled: BN + ND powder ball milled and extruded in one sequence Ball milling clearly improving the performance More with Less: > 25% improvement in overall thermal conductivity by replacing only 0.1 wt.% of the 45 wt.% filler loading with ND s 4 3,5 3 in-plane (x/y) Average (x/y/z) 2,5 2 1,5 1 0,5 0 PA BN , ball milled

31 Conclusions It was proven that already extremely small amounts of NanoDiamond thermal additives can catalyze the thermoplastic thermal compound overall thermal conductivity Success factors Optimization of nanodiamond thermal filler electrostatic interaction with thermal filler, via correct nanodiamond materials selection Nanodiamond agglomeration control, in this case by subjecting nanodiamond powder into ball milling together with boron nitride thermal filler before compound manufacturing Carbodeon active also within other thermoplastic thermal compounds PPS etc. Carbodeon patented Fine-tuned nanodiamond filler solutions now available for our customers

32 Carbodeon Providing You a Unique Advantage through New Materials Material Technology Unique Customer Value Application Techniques Cooperative Projects

33 Carbodeon Providing You a Unique Advantage through New Materials Material Technology Unique Customer Value Application Techniques Cooperative Projects Contact Us!

34 Carbodeon Ltd. Oy Pakkalankuja Vantaa Finland Gavin Farmer Business Development Mobile: gavin.farmer@carbodeon.com Vesa Myllymäki Chief Technical Officer Mobile: vesa.myllymaki@carbodeon.com