| HS Code | 181974 |
| Product Name | Compostable 1006 High Modulus Injection Molding PLA Blend |
| Material Type | Polylactic Acid (PLA) Blend |
| Grade | 1006 |
| Processing Method | Injection Molding |
| Compostability | Compostable per ASTM D6400 and EN 13432 |
| Biobased Content | 100% |
| Density | 1.24 g/cm³ |
| Melt Flow Rate | 15 g/10 min at 210°C/2.16 kg |
| Tensile Strength At Yield | 62 MPa |
| Tensile Elongation At Break | 2.5% |
| Tensile Modulus | 3.6 GPa |
| Flexural Modulus | 3.8 GPa |
| Flexural Strength | 90 MPa |
| Notched Izod Impact Strength | 16 J/m |
| Heat Deflection Temperature | 55°C at 0.45 MPa |
| Vicat Softening Temperature | 60°C |
| Glass Transition Temperature | 55-60°C |
| Melting Temperature | 165-180°C |
| Melt Temperature | 190-210°C |
| Mold Temperature | 25-50°C |
| Drying Temperature | 80°C |
| Drying Time | 4 hours |
As an accredited Compostable 1006 High Modulus Injection Molding PLA Blend factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Compostable 1006 High Modulus Injection Molding PLA Blend: 25 kg moisture-barrier foil-lined bags, palletized, shrink-wrapped, labeled with batch and safety information. |
| Container Loading (20′ FCL) | 20′ FCL container loading for Compostable 1006 High Modulus Injection Molding PLA Blend, securely packed and stowed for ocean freight. |
| Shipping | Compostable 1006 High Modulus Injection Molding PLA Blend is shipped as a non-hazardous solid in sealed moisture-barrier bags or lined drums. Protect from heat, moisture, and UV; store below 30°C in a dry, ventilated area. Keep containers closed and palletized during transit. Standard transport regulations and PPE apply. |
| Storage | Store in a cool, dry, well-ventilated area. Keep containers tightly closed and protect from moisture, heat, direct sunlight, and ignition sources. Recommended storage below 25°C and relative humidity below 50%. Avoid contact with strong acids, bases, and oxidizing agents. Use desiccants if humid; follow first-in, first-out stock rotation. Keep away from food and incompatible materials. Reseal opened packages promptly. |
| Shelf Life | Typical shelf life is 12 months when stored unopened in a cool, dry place, away from moisture, heat, and sunlight. |
Injection molding of single-use cutlery from Compostable 1006 high-modulus PLA blend is performed on hydraulic toggle presses with clamp force from 400 kN for a four-cavity spoon tool to 1600 kN for a sixteen-cavity fork tool. The pellet is dried at 80°C for 4–6 h to residual moisture below 250 ppm, with 150 ppm preferred, because hydrolysis at melt temperatures above 200°C reduces molecular weight and lowers notched Charpy impact strength at the gate. Nozzle temperature is held between 190°C and 210°C; at 215°C the melt viscosity drops sufficiently to produce parting-line flash, while at 185°C the high-modulus formulation freezes inside sub-gates and produces short shots in the outer tines of fork tools. Mold temperature is controlled at 20–30°C for wall thicknesses of 1.5–2.5 mm, producing a largely amorphous skin that reduces crystallization shrinkage but limits heat resistance. Ejector pin area is increased to at least 6 mm² per pin because the stiff material resists ejection and can fracture around undersized pins. Closed-loop regrind is introduced at 20–25 wt% of the total shot weight when dried to 250 ppm and screened through a 4 mm mesh. Cross-contamination with non-compostable polymers is kept below 1 wt% to avoid disintegration failure under EN 13432. Nucleating agent addition at 0.5–1.5 wt% increases crystallization rate, but above 1.5 wt% the compound can become overly brittle at the spoon handle gate. An epoxy-based chain extender at 0.2–0.6 wt% is used in some production lines to rebuild molecular weight after regrind addition, but exceeding 0.8 wt% raises melt viscosity and causes gate blush. Amine-based additives are avoided because they accelerate hydrolytic degradation and release volatiles in the melt.
Compliance in this segment is governed by EN 13432:2000 or ASTM D6400-21 for compostability, requiring 90% disintegration on a dry solids basis within 12 weeks and 90% biodegradation to CO₂ within 180 days under industrial composting conditions at 58±2°C. Food-contact status under EU Regulation 10/2011 is assessed by EN 1186-1 overall migration with a limit of 10 mg/dm² in the intended food simulant. United States FDA status is established through a Food Contact Notification for the specific grade rather than through a general olefin polymer regulation. Terminal articles include forks, spoons, knives, stirrers, and cake servers with wall thickness below 3 mm. The process conditions in this segment are summarized in the following matrix.
| Property | Test standard | Typical range or criterion |
|---|---|---|
| Melt flow rate | ISO 1133-1:2022, 190°C/2.16 kg | 6–15 g/10 min |
| Tensile modulus | ISO 527-2:2012 | 3500–4200 MPa |
| Flexural modulus | ISO 178:2019 | 3800–4500 MPa |
| Notched Charpy impact strength | ISO 179-1:2010/1eA | 3–5 kJ/m² |
| Biodegradation | EN 13432:2000 | ≥90% in 180 days |
| Overall migration | EN 1186-1 under EU 10/2011 | <10 mg/dm² |
At wall thicknesses between 0.6 mm and 0.8 mm, capsule bodies expose the melt to high shear at the gate and require accumulator-assisted injection on electric toggle machines with clamp force from 1200 kN to 3000 kN. Screw geometry is limited to L/D 20:1 to 25:1 and compression ratio 2.0:1 to 2.5:1; high-compression screws above 3.0:1 increase shear heating and accelerate molecular weight loss. Valve-gated hot runners are operated with nozzle tip temperature below 215°C, because residence time above 230°C for more than 5 min lowers melt viscosity and generates off-taste compounds. Melt temperature is set at 200–210°C, mold temperature at 20–30°C, injection speed at 200–350 mm/s, fill time below 0.3 s, hold pressure at 80–90 MPa for 0.5–1.5 s, and cooling time at 6–10 s. To prevent brittle piercing fracture at the capsule base, 5–10 wt% of polybutylene succinate or a compostable aliphatic-aromatic copolyester is blended into the high-modulus PLA. At 10 wt% addition, tensile modulus decreases by approximately 15–20% relative to the unmodified high-modulus grade, which is tolerable only in low dosing pressure systems. Above 15 wt%, the capsule shell loses the hoop rigidity required to resist 9 bar extraction pressure and may deform at the rim seal. The capsule body is not oxygen-tight; the oxygen transmission rate through a 0.8 mm PLA shell is roughly an order of magnitude higher than through a PP-EVOH-PP laminate structure, so secondary barrier packaging or modified atmosphere is required for shelf life beyond 3–6 months.
Compliance includes EU Regulation 10/2011 migration testing with food simulant D1 and EN 13432 industrial compostability. Disintegration must reach 90% within 12 weeks in a controlled compost test, and the capsule body must not impede the composting process when embedded in coffee grounds. Terminal articles include coffee capsule bodies, tea pod shells, and portion-pack cups for dry dairy creamers. The processing window shifts with sidewall thickness as shown in the comparative table below.
| Parameter | 0.6 mm capsule shell | 1.0 mm capsule shell |
|---|---|---|
| Drying residual moisture | <250 ppm | <250 ppm |
| Melt temperature | 200–210°C | 195–210°C |
| Mold temperature | 20–25°C | 25–35°C |
| Injection speed | 250–350 mm/s | 150–250 mm/s |
| Hold pressure | 80–90 MPa | 60–75 MPa |
| Cooling time | 6–8 s | 10–14 s |
Cosmetic closures molded from the high-modulus PLA blend replace ABS and PP in lotion pump collars, jar lids, compact powder bases, and lipstick mechanisms where wall thickness between 1.8 mm and 3.2 mm must resist torque and avoid sink marks. The material is dried at 80°C for 4 h; melt temperature is set at 195–205°C; mold temperature is raised to 60–80°C to induce crystallinity for improved torque retention. Because high mold temperature slows core cooling, cycle time is 20–30% longer than polypropylene. Gate diameter is maintained at ≥1.0 mm for a 2.5 mm closure wall to prevent jetting; injection speed is 80–120 mm/s; hold pressure is 60–80 MPa for 8–12 s. Formulation constraints include the use of 2–4 wt% PLA-based pigment masterbatch; polyolefin carrier resins reduce melt homogeneity and create visible delamination at the weld line. Erucamide slip additive at 0.1–0.3 wt% lowers ejection friction on long core pins, but above 0.5 wt% it migrates to the surface within 48 h and interferes with pad printing adhesion. Annealing at 80°C for 30 min after molding increases crystallinity and dimensional stability, but unrestrained parts may warp 0.3–0.8%; fixtures are required for close-tolerance thread forms. Packaging compliance rests on EU Directive 94/62/EC heavy metal sum below 100 mg/kg and REACH Annex XVII restrictions. EN 13432 certification is retained only if metal springs, metalized coatings, or secondary components are separated before composting.
Outdoors, the dominant failure mode in plant clips is brittle fracture at the snap-fit base, not tensile yielding of the beam. The high-modulus PLA blend exhibits notched Charpy impact strength of 3–5 kJ/m² under ISO 179-1:2010/1eA, which is sufficient only when the snap-fit hinge radius is ≥0.8 mm and the gate is placed away from the flex point. Clips manufactured with a hinge radius below 0.5 mm fail during assembly at ambient temperatures below 15°C. Mold temperature is operated at 80–100°C to maximize crystallization in the hinge zone; cooling time extends to 20–40 s for 2–3 mm wall sections. Draft angle of 1–2° prevents sticking in the ribbed snap features. Nucleating agent at 0.5–1.0 wt% reduces cycle time by increasing crystallization rate, but underpacking produces a brittle amorphous hinge. UV stabilization at 0.3–0.8 wt% is used for outdoor exposure; published data for specific UV stabilization in this high-modulus PLA configuration is limited, and field performance must be validated by weathering tests. EN 13432 certification covers industrial composting only; outdoor soil exposure is not equivalent. If home compost claims are required, separate testing to a recognized home compost standard such as AS 5810-2010 is needed. Terminal articles include vine clips, greenhouse clips, plant labels, and tree tags.
Under a sustained writing load of 2–5 N, high-modulus PLA barrels in writing instruments must maintain bending deflection below 0.3 mm over a 60 mm cantilever length. The flexural modulus of approximately 3800 MPa under ISO 178:2019 allows wall thickness reduction from 2.0 mm to 1.6 mm compared with amorphous PLA. Long cylindrical components are molded on multi-cavity tools with valve-gated cold runners; mold temperature is held at 40–60°C to balance crystallinity and ejection. Core deflection is controlled with 0.5° minimum draft and air-assisted ejection. Pad printing adhesion requires surface treatment by corona or plasma because PLA surface energy is low. Impact modification is generally avoided in pen barrels because it lowers modulus; where drop performance is required, 5–10 wt% of a compostable flexible polyester is added and the barrel thickness is increased by 0.2 mm. Compliance includes EN 71-3 migration of certain elements if the product is likely to be used by children, and REACH SVHC screening. Terminal articles include pen barrels, mechanical pencil bodies, rulers, and desk organizers.
For flat display trays with top-load requirements, warpage is governed by differential shrinkage between the rapidly cooled skin and the slowly cooled core. The high-modulus PLA blend is processed on toggle presses with a cavity temperature of 25°C and a core temperature of 40°C to balance the shrinkage gradient; symmetric gate placement alone does not prevent corner lift if the offset exceeds 10°C. Fan gates of 0.8–1.2 mm thickness are placed at the geometric centre; hold pressure of 50–70 MPa for 6–10 s minimizes sink. Wall thickness is reduced from 2.0 mm to 1.6 mm with no loss in top-load rigidity. Compliance includes EU Packaging Directive 94/62/EC heavy metal sum below 100 mg/kg and REACH SVHC screening. If trays are used for consumer electronics accessories, antistatic additives must be evaluated for compostability; many amine-based antistats are incompatible and should be avoided. Terminal articles include rigid display trays, shelf trays, point-of-sale hooks, and promotional holders.
Competitive Compostable 1006 High Modulus Injection Molding PLA Blend prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8618136850665 or mail to admin@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8618136850665
Email: admin@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Designated as a high-modulus injection molding grade, the Compostable 1006 High Modulus Injection Molding PLA Blend is supplied as a pelletized polylactic-acid-based compound for rigid, thin-wall and dimensionally constrained articles. The product is specified with a melt volume-flow rate of 6–12 cm³/10 min under ISO 1133-1:2022 at 210 °C and 2.16 kg, a density of 1.25–1.29 g/cm³ under ISO 1183-1:2019, and a tensile modulus of 3,900–4,600 MPa under ISO 527-2:2012 at 1 mm/min. The stiffness package in the blend raises the room-temperature modulus above that of general-purpose PLA while maintaining a practical melt viscosity for high-cavity injection molding. Unlike unfilled PLA, the material exhibits more pronounced shear thinning, so mold-filling calculations should use capillary or slit rheometry data rather than a single melt-flow value. The grade is typically evaluated for industrial compostability under EN 13432:2000 and ASTM D6400-21; conformance requires ≥90% biodegradation of the organic fraction within 180 days under controlled composting conditions, and ≥90% disintegration after 12 weeks in a pilot-scale composting cycle.
Because the blend contains a stiffening additive package, drying is more critical than for general-purpose PLA. A desiccant dryer set to 80 °C for 4–6 h with a dew point below -40 °C should reduce residual moisture below 250 ppm before melt processing. At ambient relative humidity above 60%, open-line feed should be avoided or drying time extended; hydrolytic degradation becomes measurable when residual moisture exceeds 500 ppm, producing lower melt strength, silver streaking, and lot-to-lot modulus drift.
Barrel-temperature profiles should be kept between 180 °C and 220 °C, with the feed throat cooled to 40–60 °C to prevent premature bridging. Nozzle temperature should be maintained at 200–215 °C. At melt temperatures above 225 °C, PLA degradation accelerates and lactic acid release can contribute to corrosive wear on unprotected tool steel; at melt temperatures below 185 °C, thin-wall sections below 1.0 mm are likely to freeze off before full packing. Melt residence time should be limited to 5 min at 210 °C; longer residence times degrade molecular weight and reduce notched Charpy impact. Screw rotation speed for 25–35 mm screws should be set at 40–80 min⁻¹ with back pressure of 0.5–1.2 MPa. On a 1,200 kN hydraulic injection molding machine with a 30 mm three-zone screw, torque-limited screw recovery has been observed when back pressure exceeds 1.2 MPa; this condition also raises melt temperature by shear heating. The melt is pseudoplastic, with typical apparent viscosity of 300–600 Pa·s at 210 °C and 100 s⁻¹, and 80–150 Pa·s at 1,000 s⁻¹. For mold-filling simulation, Cross-WLF coefficients should be fitted from capillary rheometry at 190 °C, 210 °C, and 230 °C; single-point melt-flow data are insufficient for predicting thin-wall fill pressure.
Mold surface temperature should be maintained at 20–40 °C for cold-runner tools to achieve rapid ejection. Higher mold temperatures up to 80 °C can be used to increase crystallinity and heat-deflection temperature, but cycle time increases and shrinkage may become anisotropic. Gates should be sized for shear rates below 50,000 s⁻¹; excessive gate shear produces localized overheating and visible flow marks. Vent depths of 0.01–0.03 mm are recommended for thin-wall cavities. Published data for this specific formulation under hot-runner shear history is limited; production trials on hot-runner tools should start with manifold and nozzle temperatures at the lower end of the melt-temperature window and verify melt-pressure stability.
The high-modulus additive package increases the elastic modulus of the solidifying layer and can alter shrinkage behavior in ways that are not captured by standard unfilled-PLA shrinkage datasheets. Mold shrinkage in the flow direction is typically 0.3–0.6%; transverse shrinkage is typically 0.4–0.7% because of anisotropic orientation of the stiffening filler or nucleated crystalline domains. This difference becomes more pronounced in parts with flow length-to-thickness ratios above 150:1, where oriented skin layers dominate. In contrast, a general-purpose PLA often shows less direction-dependent shrinkage but also lower stiffness; the increased modulus of the 1006 grade can generate higher ejection forces on deep cores. Draft angles of 1–2° on textured surfaces and 0.5–1° on polished mold cores are recommended; insufficient draft produces scuffing and white stress marks. For dimensionally stable parts that require post-mold heat resistance, annealing at 80–100 °C for 30–60 min can increase crystallinity and raise HDT A, but it also introduces additional shrinkage of 0.2–0.4%. The shrinkage anisotropy should be measured on a cavity-to-cavity basis, not only on a slab specimen; cavity-to-cavity fill imbalance of ±2% can shift the effective shrinkage by ±0.05%.
The property ranges in Table 1 are representative lot-to-lot values for this product class. They are not specifications; the current technical data sheet and certificate of analysis prevail. All mechanical values should be assessed after conditioning at 23 °C and 50% RH for 40–48 h according to ISO 291:2008.
| Property | Test Method | Representative Range |
|---|---|---|
| Tensile modulus | ISO 527-2:2012, 1 mm/min | 3,900–4,600 MPa |
| Tensile strength at yield | ISO 527-2:2012, 5 mm/min | 60–70 MPa |
| Flexural modulus | ISO 178:2019, 2 mm/min | 4,000–4,800 MPa |
| Notched Charpy impact, 23 °C | ISO 179-1:2010 | 2.5–4.0 kJ/m² |
| HDT A, 1.8 MPa | ISO 75-2:2013 | 55–65 °C |
| Melt volume-flow rate | ISO 1133-1:2022, 210 °C, 2.16 kg | 6–12 cm³/10 min |
| Density | ISO 1183-1:2019 | 1.25–1.29 g/cm³ |
| Residual moisture after drying | Karl Fischer titration | <250 ppm |
Industrial compostability is assessed according to EN 13432:2000 and ASTM D6400-21. Biodegradation testing under ISO 14855-1:2012 or ASTM D5338-15 shall demonstrate ≥90% conversion of the organic fraction to CO₂ within 180 days at 58 °C ± 2 °C. Disintegration under ISO 16929:2021 or the pilot-scale composting protocol of EN 13432:2000 shall leave no more than 10% of the original dry mass on a 2 mm sieve after 12 weeks. Heavy metal content must comply with the concentration limits in EN 13432:2000 Annex E. The product is not intended for home composting unless separately certified; published data for this specific configuration under ambient home composting conditions is limited.
Injection molding applications for rigid, thin-wall parts include disposable cutlery, food-service trays, plant pots, electronic packaging trays, and cosmetic component carriers. The high compressive and flexural stiffness reduces part deflection under load, but the lower notch impact requires design changes at snap-fit and hinge features; snap-fit insertion angles should be below 20° and minimum radii of 0.5–1.0 mm are recommended to avoid stress whitening. Weld-line strength retention in stiff PLA blends is lower than in unfilled amorphous PLA; mold-filling simulations should position weld lines away from tensile or flexural load-bearing regions. For a 1.2 mm-thick rectangular tray with a flow length of 180 mm, upstream gate pressure is typically 80–120 MPa on a 1,200 kN clamp force machine using a 30 mm three-zone screw. High-cavity tools with 8–16 cavities should use mechanically balanced runner systems; cavity-to-cavity fill imbalance of ±2% can create modulus variation of ±4% because of differences in packing pressure. The material can be processed on general-purpose polyolefin screws with L/D 20:1–24:1 and compression ratio 2.0:1–2.8:1; low compression ratios below 2.0:1 are not recommended because they reduce dispersive mixing of the stiffness package.
The 1006 blend differs from mineral-filled PLA primarily in density, surface finish, and melt viscosity. A typical mineral-filled PLA containing 10–20% talc may reach tensile modulus of 3,800–5,500 MPa and density of 1.32–1.40 g/cm³; the 1006 grade targets the lower density range of 1.25–1.29 g/cm³ while retaining high modulus. Compared with general-purpose PLA, the tensile modulus is raised by 15–30%, but notched Charpy impact is not improved and may be slightly lower. Compared with toughened PLA/PBAT blends, the 1006 grade is not a direct substitution in impact-limited designs; toughened PLA/PBAT grades often show notched Charpy values of 15–35 kJ/m², whereas the 1006 grade remains at 2.5–4.0 kJ/m². Table 2 compares these product classes.
| Property | Compostable 1006 High Modulus PLA | General-purpose PLA | Toughened PLA/PBAT | Mineral-filled PLA |
|---|---|---|---|---|
| Tensile modulus | 3,900–4,600 MPa | 3,200–3,600 MPa | 1,800–2,500 MPa | 3,800–5,500 MPa |
| Notched Charpy impact, 23 °C | 2.5–4.0 kJ/m² | 3.0–5.0 kJ/m² | 15–35 kJ/m² | 2.0–4.5 kJ/m² |
| Density | 1.25–1.29 g/cm³ | 1.24–1.26 g/cm³ | 1.22–1.28 g/cm³ | 1.32–1.40 g/cm³ |
| Compostability certification | EN 13432:2000 / ASTM D6400-21 if compliant | EN 13432:2000 / ASTM D6400-21 if compliant | EN 13432:2000 / ASTM D6400-21 if compliant | Depends on filler and additives |
Compostability certification for high-modulus PLA remains valid only if the stiffness package meets the feedstock and heavy-metal restrictions of EN 13432:2000 and ASTM D6400-21. Certain mineral fillers can reduce organic content and may change disintegration behavior; validation should be performed on the final formulated compound, not on the base resin. The 1006 grade is intended for industrial composting feedstocks and should not be combined with non-compostable colorants or labels that interfere with certification. Regrind from the same certified compound can be re-introduced at ≤20 wt% if the regrind is dry and not thermally degraded; higher levels reduce melt viscosity and can lower tensile modulus by 5–10% per pass.
Logistics and storage require sealed moisture-barrier packaging below 30 °C. Bags should not be opened until the material reaches room temperature; condensation on cold pellets can introduce enough surface moisture to exceed 250 ppm even if the original batch was dry. Purging should use a general-purpose polyolefin or virgin PLA purge; avoid purging with strongly acidic or oxidizer-containing compounds because residual purging agents can accelerate ester hydrolysis. The blend is not recommended for continuous exposure to boiling water, hot-fill above 65 °C, or microwave reheating unless the part is annealed or crystallized. Avoid prolonged contact with amine-containing additives and strong alkalis, which can attack the polyester backbone and reduce molecular weight. Published data for the creep-rupture behavior of this specific stiffness-modified PLA configuration is limited; load-bearing long-term applications should be validated with prototype testing under end-use temperature and humidity conditions.
