Envalior Arnitel ID 2045 Copolyester, >50% Renewable Content, 3D Printing Grade
- Название продукта: Envalior Arnitel ID 2045 Copolyester, >50% Renewable Content, 3D Printing Grade
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- Envalior Arnitel ID 2045 Copolyester, >50% Renewable Content, 3D Printing Grade is typically used in formulations when renewable content and mechanical flexibility and print temperature and moisture content must be controlled within specific ranges.
| Код ТН ВЭД | 890095 |
Как аккредитованный завод Envalior Arnitel ID 2045 Copolyester,> 50% возобновляемого содержания, 3D-печати, мы соблюдаем строгие протоколы качества - каждая партия подвергается строгим испытаниям для обеспечения последовательных стандартов эффективности и безопасности.
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Arnitel ID 2045 (Envalior) is a >50% renewable-content semicrystalline thermoplastic copolyester elastomer supplied as a filament feedstock for fused filament fabrication. The term “3D printing grade” is not unqualified: ester-based soft segments govern elastic recovery and set a drying threshold below 0.03 wt% moisture, while block hard segments require hot-end residence time short enough to avoid transesterification-induced viscosity drift. Converters must therefore maintain lot-specific melt volume-flow rate records measured according to ISO 1133-1:2022 and compare printed tensile properties to ISO 527-1:2019 test data prepared in XY and Z orientations. Downstream sectors that depend on isotropic impact strength or continuous load-bearing above the glass transition of the soft segment are excluded; printed lattice structures are preferred because they can be tuned to directionally compensate for interlayer weakness. Renewable-content claims must be verified from the current Envalior certificate for the specific lot, because mass-balance allocation may vary by production site and transportation pathway.
| Stage | Parameter | Value | Equipment / method |
|---|---|---|---|
| Drying | Temperature | 100 °C | Desiccant dryer, dew point ≤ −40 °C |
| Drying | Time | 4 h | Residual moisture ≤ 0.03 wt% |
| Extrusion | Hot-end set point | 235–250 °C | Nickel-plated brass or hardened steel nozzle |
| Build plate | Set point | 60–80 °C | PEI or glass plate with PP-based adhesive film |
| Nozzle | Diameter | 0.4–0.6 mm | Shall be matched to layer height |
| Layer height | Range | 0.10–0.20 mm | Lower values for skin-contact faces |
Does Layer-Dependent Modulus Reduction Constrain Diabetic Orthotic Lattices?
Custom diabetic insoles and ankle-foot orthoses made from Arnitel ID 2045 are produced when the technical requirement is a skin-contact, low-water-uptake elastomer that can be latticed to redistribute plantar pressure without losing recovery after repeated loading. The compound is printed neat; no plasticizer, filler, or colorant is added unless the colorant supplier provides a biocompatibility statement at the final concentration and the addition ratio remains ≤ 2.0 wt%. Lattices are built with 35–55% infill, 3–4 perimeters, 0.12 mm layer height, 0.4 mm nozzle, and a hot-end set point of 235 ± 5 °C on a heated bed at 70 ± 10 °C. Printed shells are annealed at 100 °C for 2 h in a forced-air oven, then conditioned at 23 ± 2 °C and 50 ± 5% RH for 24 h before dimensional audit. The downstream production sequence begins with plantar pressure mapping or STL geometry from a foot scanner, continues with generative lattice mapping that aligns gyroid cell axes to the load path, then proceeds through slicing with all solid top and bottom layers set to 0.8 mm and layer start points randomized to avoid a visible seam. Annealing is the critical step because FFF interlayer adhesion in the Z orientation can be more than 30% lower than injection-moulded isotropic tensile strength when measured according to ISO 527-2:2012; published data for this specific configuration is limited, so each production batch should qualify by pulling 3 Z-oriented specimens per build plate location. Skin-contact regulatory compliance is assessed under ISO 10993-5:2009 for cytotoxicity and ISO 10993-10:2021 for sensitization and irritation; if the insole is marketed as a custom medical device in the EU, EU MDR 2017/745 Annex VIII Rule 1 may place it in Class I with technical documentation obligations. Terminal products include full-contact diabetic insert shells, heel cups with differential medial posting, and lattice-based ankle-foot orthosis liners that replace ethylene-vinyl acetate foam at equivalent hardness.
In compressed-air end-effector workholding for corrugated board and aluminium sheet handling, the printed elastomer is used as a bellows-style vacuum cup and flexible gripper jaw because its recovery after buckling must remain below 5% compressive set when tested under ISO 815-1:2014 at 70 °C for 22 h. The formulation is a neat unfilled Arnitel ID 2045 filament without carbon-fibre or glass reinforcement, because rigid particulate additives reduce bellows flexural fatigue life; if ESD conductivity is required, a conductive masterbatch is limited to 3.0 wt% and must not increase melt viscosity by more than 10% over the neat lot. Print settings are 70–85% infill with a 0.6 mm nozzle and 0.20 mm layer height; internal voids are deliberately reduced with 5 top and 5 bottom solid layers. Bellows geometries are designed with a 0.8–1.2 mm flexible wall and a stress-relief radius of 2.0 mm at each fold root, because sharp fold-root radii create crack initiation sites under cyclic actuator strokes of 5–10 Hz. Print orientation is set so fold lines run parallel to the XY plane, never through the Z stack. The downstream production process includes printing onto a heated polyetherimide build plate at 75 ± 5 °C, abrasive tumbling for 30–60 min with ceramic media to remove surface nibs, and then oven annealing at 110 °C for 3 h in a closed chamber with ambient humidity below 20% RH to avoid hydrolysis of ester bonds. Cleanability is governed by EC 1935/2004 only where the part is intended for indirect food contact; porous FFF surfaces must be post-sealed with a certified food-contact epoxy or replaced by a sealed bellows design, because microbial ingress into unbonded layer boundaries cannot be cleaned by standard washdown. Terminal product types include bellow gripper cups for case packing, soft jaws for aluminium sheet destacking, and collision-tolerance spacers on rail-guided pick-and-place heads.
When Snap-Fit Wire Harness Clips Cross From Injection Moulding to Fused Filament Fabrication
Automotive wire harness routing clips and dashboard cable retainers are produced from Arnitel ID 2045 when low-volume service parts or pre-series builds cannot justify injection mould tooling. In this configuration the material replaces a high-durometer PBT or PA66 but requires a different snap-fit design: cantilever strain must stay below 5% at the assembly deflection, because the copolyester elastomer has lower flexural modulus than glass-filled PBT. Formula addition is 100% neat resin; flame-retardant masterbatches are avoided because UL 94 HB may be the baseline and halogen-free FR packages typically harden the snap-fit and reduce fatigue life. Process settings use 90–100% infill, 0.4 mm nozzle, 0.10 mm layer height, and 6 perimeters; the build chamber is kept at 40–60 °C to reduce warping on long clips longer than 120 mm. After printing, clips are annealed at 120 °C for 2 h on a fixture that holds the snap arm in the undeflected position. Dimensional audit uses a non-contact scanner to compare the printed clip to the injection-moulded reference; batch-to-batch variation is managed by extracting 5 clips per build from the left, centre, and right bed zones. For interior use, emission behaviour is tested according to DIN 75201-B for fogging and VDA 278:2011 for VOC and SVOC; if the clip is mounted in a visible interior location, stabilisation against UV in rear-window areas is assessed under ISO 4892-2:2013 method A for 600 h, though published data for this specific printed configuration is limited. Terminal products include harness strap retainers, CAN bus cable clips, and electro-hydraulic brake line brackets used in low series electric drive prototypes.
Where the printed part is intended as an energy-attenuating liner in sports protective equipment, the dominant material requirement changes from static modulus to rate-dependent energy return and repeatable high-strain recovery. Arnitel ID 2045 lattices for shin guards, shoulder caps, and glove knuckle pads are printed at 20–30% relative density using a gyroid unit cell of 8–12 mm and a wall thickness of 1.2–1.6 mm; the formulation remains neat because adding low-durometer elastomer modifiers only increases impact compliance without improving energy attenuation. The build sequence uses a 0.6 mm nozzle, 0.20 mm layer height, 3–4 perimeters, and infill direction rotated 45° at each layer to create a pseudo-isotropic response. After printing, parts are annealed at 100 °C for 2 h and then compressed cyclically for 500 cycles at 20% strain to settle the lattice before final compliance testing. Impact tests are performed on a drop tower at 2–4 m/s with a 5 kg flat impactor; peak transmitted force and displacement are compared against injection-moulded EVA or TPU foam at the same thickness. Regulatory compliance follows EU 2016/425 as PPE if the part is marketed as protection; a harmonised standard such as EN 1621-2:2018 may apply for motorcycle limb protectors, while general sports equipment may be assessed under EN 14120:2003 for wrist, palm, knee, and elbow guards. Terminal product types include ventilated shin shield liners, shoulder pad lattice cores, and glove metacarpal guards produced in player-specific geometries from 3D surface scans.
Extended per-skin-contact wearable bands and headset cushions printed from Arnitel ID 2045 shift the regulatory review toward extractable leachables, surface pH, and cell viability. Wearable bands and headset facial interfaces use a thin 0.8–1.0 mm skin-facing wall with 15–25% gyroid infill; the open internal lattice reduces springback and permits air circulation through perforations of 1.5 mm diameter. The formulation is neat resin, but colour masterbatches used for device branding are restricted to ≤ 2.0 wt% and must carry a skin-contact migration statement according to ISO 10993-10:2021. Process settings include a 0.4 mm nozzle, 0.10 mm layer height, 4 perimeters, and random seam placement; parts are printed at 235 ± 5 °C with a bed temperature of 70 ± 5 °C, then tumbled for 90 min with soft ceramic media to break sharp layer ridges. A subsequent two-stage wash with 70% isopropanol and deionised water reduces loose oligomer deposits, but solvent washing must be followed by vacuum drying at 40 °C for 12 h because the ester soft segments absorb low-molecular alcohol under heat. Cytotoxicity is pre-screened according to ISO 10993-5:2009; if the device is sold as a general consumer article, REACH Annex XVII entries 51 and 52 for phthalates and CMR substances apply, and RoHS 2011/65/EU limits lead, cadmium, mercury, hexavalent chromium, PBB, and PBDE at 0.1% or 0.01% by weight in homogeneous material. Terminal product types include smartwatch strap cores, augmented-reality headband pads, and replaceable facial interface cushions for high-end VR headsets.
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- Envalior Arnitel ID 2045 Copolyester, >50% Renewable Content, 3D Printing Grade Производится в соответствии с системой качества ISO 9001 и отвечает соответствующим нормативным требованиям.
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Envalior Arnitel ID 2045 is supplied as a thermoplastic copolyester elastomer filament for fused filament fabrication and direct extrusion additive manufacturing. The grade is specified with a renewable carbon content above 50% as measured by ASTM D6866-21, and its durometer is commonly reported at 45 Shore D under ISO 868:2003. Supplier-published tensile data list a nominal strain at break above 300% under ISO 527-1/-2:2012, placing the material between rigid polyester filaments and soft urethane elastomers in terms of flexural recovery. The polymer is not plasticized PLA or a styrenic resin; it is a segmented copolyester in which crystalline hard segments provide load-bearing capacity and amorphous soft segments provide elastic recovery.
Because the renewable carbon fraction is derived from plant-sourced feedstocks rather than petroleum, procurement documentation must distinguish between biobased carbon content and total mass fraction. The controlling analytical method is radiocarbon analysis under ASTM D6866-21, which reports contemporary carbon as a percentage of total organic carbon. This value exceeds 50% for Arnitel ID 2045 but should be confirmed on the lot certificate because monomer sourcing may vary between campaigns. Environmental declarations under ISO 14021:2016 require direct radiocarbon data or mass-balance records; a nominal product-sheet statement alone is not sufficient for industrial procurement audits.
| Property | Typical value | Test method |
|---|---|---|
| Density | 1.17 g/cm³ | ISO 1183-1:2019 |
| Shore D hardness | 45 | ISO 868:2003 |
| Tensile modulus | 60–80 MPa | ISO 527-1/-2:2012 |
| Tensile stress at break | 20–30 MPa | ISO 527-1/-2:2012 |
| Nominal strain at break | >300% | ISO 527-1/-2:2012 |
| Water absorption, 24 h at 23 °C | <0.5% | ISO 62:2008 |
| Vicat softening temperature | 160 °C | ISO 306:2022, A50 |
These values are typical and are not specification limits. Printed-part mechanical response depends on raster angle, infill density, shell count, and weld-line orientation. Data generated on injection-molded plaques under ISO 527-1/-2:2012 should not be used directly for part-level finite-element input without toolpath correction factors, and direct comparison to ASTM D638-14 is valid only after strain-rate and specimen-dimension corrections are applied. Rheologically, the melt is shear-thinning under nozzle shear rates typical of 0.4 mm extrusion, but published capillary viscosity curves under ISO 11443 are limited for this specific renewable-content grade. The melt volume-flow rate at 230 °C with 2.16 kg load is listed on the lot certificate under ISO 1133-1:2022; filament producers use it as a lot-to-lot consistency check rather than as a direct printing parameter.
What distinguishes Arnitel ID 2045 from fossil-based copolyester and TPU filament grades?
Relative to ester-based thermoplastic polyurethane filament at equivalent Shore D hardness, Arnitel ID 2045 typically exhibits lower equilibrium moisture absorption and a narrower drying window. This difference reduces the frequency of surface voids and dimensional drift in long uninterrupted print runs. Under ISO 527-1/-2:2012, the grade retains strain at break above 300%, whereas PLA and rigid polyester compositions typically fail below 10% strain in ambient benchtop tests. The product is not a styrenic polymer; it does not generate styrene monomer from the polymer backbone during melt processing, although total volatile emissions still depend on additive stabilizers, nozzle temperature, and chamber ventilation.
Against fossil-based copolyester elastomers of similar hardness, the principal measurable difference is radiocarbon count rather than modulus or tensile strength. The renewable carbon fraction under ASTM D6866-21 exceeds 50%, while fossil-derived TPC grades measure approximately 0% biogenic carbon. In chemical exposure service, the copolyester backbone provides resistance to dilute acids and hydrocarbon oils, but strong alkaline solutions and high-temperature steam accelerate ester hydrolysis. This boundary also applies to fossil TPC; the renewable feedstock does not change ester linkage chemistry.
Compared with nylon 12, the copolyester has lower equilibrium water absorption under ISO 62:2008, which improves dimensional stability in humid environments but limits high-temperature service because nylon 12 retains a higher continuous-use temperature. Compared with ABS and ASA, the flexible copolyester does not require a heated chamber to control interlayer stress; however, its tensile modulus is significantly lower and it is not a candidate for thick rigid housings where bending deflection under load is constrained. For replacement of TPU in dynamic flexural applications, published data for this specific renewable-content 3D printing configuration is limited. Notched Izod impact values at -20 °C under ISO 180/A and flex-cut-growth resistance under ASTM D1052 should be requested from the supplier before changing an incumbent material. The 45 Shore D hardness provides a different tactile response than 95A TPU, and the relationship between durometer and flexural modulus must be verified on the final printed geometry.
Processing Envelope, Equipment Boundary Conditions, and Documented Field Failure Modes
In fused filament fabrication equipment using a 0.4 mm brass nozzle, the typical nozzle setpoint range is 230–260 °C, with a build plate temperature of 20–60 °C. Print speed in the range 20–40 mm/s is used to maintain interlayer fusion without excessive shear heating. On uncoated glass, first-layer adhesion is insufficient for sharp-corner parts; PEI sheet or textured polyetherimide substrates are required for footprints above 100 mm. In production banks of small-frame printers, two field failure modes are documented: filament buckling during long retraction sequences and nozzle blockage after incomplete drying. Retraction distances above 3 mm on direct-drive systems push the compliant filament into the cold zone; the resulting lateral displacement produces intermittent feed loss. Reducing retraction to 2–3 mm and lowering nozzle pressure during travel moves reduce the fault rate.
| Parameter | Setpoint or range | Process condition |
|---|---|---|
| Nozzle temperature | 230–260 °C | 0.4 mm brass nozzle, direct-drive |
| Build plate temperature | 20–60 °C | PEI or polyetherimide sheet |
| Print speed | 20–40 mm/s | 0.2–0.3 mm layer height |
| Retraction distance | 2–3 mm | Direct-drive extruder |
| Pre-drying | 80 °C for 4 h | Forced-air desiccant dryer or vacuum oven |
| Maximum residual moisture | <0.05 wt% | Karl Fischer titration at 150 °C |
Residual moisture is the primary source of melt instability in this copolyester. Ester linkages undergo hydrolysis when water is present during melting, and the resulting molecular weight reduction appears as reduced melt strength, air-filled surface pockmarks, and weak interlayer fusion. Drying at 80 °C for 4 h in a forced-air desiccant dryer is recommended, with residual moisture verified below 0.05 wt% by Karl Fischer titration at 150 °C. Do not expose the material to ambient relative humidity above 60% for more than 8 h before printing unless it is dried again. Purging with PLA-based cleaning filament above 250 °C is not recommended because PLA degradation products can accelerate ester interchange and contaminate the melt path. Amine-based adhesion promoters should be excluded from the nozzle path because amines catalyze ester hydrolysis.
Layer adhesion is controlled by the temperature of the previously deposited road and the melt temperature of the new road. At substrate temperatures below 20 °C, interlayer peel strength decreases because the copolyester hard segment crystallizes rapidly; nozzle temperatures below 230 °C produce under-melted weld lines and delamination in parts with wall thickness above 4 mm. At nozzle temperatures above 260 °C, formation of volatile oligomers and possible ester exchange can increase surface haze and reduce tensile strength after multiple thermal exposure cycles. Conventional twin-screw compounding for this copolyester family uses an L/D ratio of at least 30:1 and moderate screw speed to limit shear-induced chain scission. In filament extrusion, melt filtration below 100 µm is applied to remove gel bodies; these equipment constraints explain why the 3D printing grade maintains tighter diameter and ovality tolerances than general-purpose pellet grades. Filament diameter is typically supplied at 1.75 mm and 2.85 mm; lot-specific ovality below 0.03 mm and diameter tolerance within ±0.05 mm should be confirmed before use in automated feed systems.
Solvent resistance of printed Arnitel ID 2045 differs from injection-molded specimens because voids and weld lines act as diffusion paths. Immersion in 50% ethylene glycol at 60 °C for 24 h often shows weight gain below 1%, but printed parts with low infill can retain more fluid mechanically than by molecular diffusion. For fuel-contact applications, compatibility with current oxygenated gasoline blends should be validated according to the part-specific surface-to-volume ratio under ISO 175:2010. Continuous contact with strong alkalis, concentrated organic acids, or saturated steam at temperatures above 80 °C is not recommended because ester hydrolysis accelerates. If support removal requires alkaline dissolution media, the printed part should be tested for surface whitening and tensile retention under ISO 527-2 after the support process.
When Renewable Feedstock Verification Intersects Part Qualification and Regulatory Submissions
Procurement specifications that invoke renewable content should require lot-specific radiocarbon analysis rather than a nominal product-sheet statement. The controlling method is ASTM D6866-21, and the result should be expressed as percent modern carbon relative to a contemporary reference. Because the copolyester may contain a combination of biogenic and fossil-derived monomer streams, the renewable carbon fraction may fall between 50% and 100% depending on campaign and mass-balance allocation. Environmental declarations under ISO 14021:2016 require this supporting evidence; generic product-line marketing language is not accepted by industrial procurement audit systems. Renewable content is not equivalent to biodegradability under ISO 14855-1:2012 or ASTM D6400; the polymer is chemically stable under ambient soil conditions and is not designed for compostability.
Regulatory screening for the supplied filament typically includes a supplier statement that REACH candidate-list SVHCs are not present above 0.1% w/w per REACH Article 33. Electrical and electronic end-use parts must be evaluated against RoHS Directive 2011/65/EU Annex II substance limits. Compliance with RoHS is a property of the finished article after printing and any post-processing, not of the filament alone. Technical documentation for article compliance should follow EN IEC 63000:2018 where applicable. The renewable feedstock designation does not automatically confer food-contact suitability; no FDA 21 CFR 177 clearance is implied unless a separate food-contact supplement is issued for the specific printed article and monomer background.
For industrial qualification programs that compare Arnitel ID 2045 with incumbent fossil-based TPC or TPU parts, the test plan should include tensile testing of printed coupons under ISO 527-2 at three raster angles, durometer measurements under ISO 868:2003, and oven aging at 70 °C for 1000 h with weight and tensile retention measured periodically. Published data for the exact aging response of this renewable-content 3D printing configuration remains limited; qualified laboratories should generate comparability data on the same printer platform and toolpath before production release.
