| HS Code | 988382 |
| Density | 1.25 g/cm³ |
| Melt Flow Rate | 10-20 g/10 min (190 °C, 2.16 kg) |
| Melting Point | 170-180 °C |
| Glass Transition Temperature | 55-60 °C |
| Heat Deflection Temperature | 100-120 °C |
| Vicat Softening Point | 120 °C |
| Tensile Strength | 50-60 MPa |
| Elongation At Break | 3-5% |
| Flexural Strength | 80-90 MPa |
| Flexural Modulus | 3000-3500 MPa |
| Notched Izod Impact Strength | 2-3 kJ/m² |
| Biodegradability | Compostable (EN 13432 / ASTM D6400) |
| Form | Pellets |
| Color | White to light yellow |
As an accredited Polylactic Acid (PLA) REVODE711H factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Packed in 25 kg net-weight, moisture-barrier bags with PE liner, palletized for transport: Polylactic Acid (PLA) REVODE711H. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): Polylactic Acid (PLA) REVODE711H loaded as palletized 25 kg bags, shrink-wrapped and secured for ocean freight. |
| Shipping | Polylactic Acid (PLA) REVODE711H is non-hazardous. Not regulated for transport. No UN number, hazard class, or packing group. Pack in sealed bags, drums, or FIBCs. Store cool, dry, away from heat and moisture. Label as non-dangerous goods. Keep containers closed; avoid dust generation. Verify carrier and local regulations. |
| Storage | Store Polylactic Acid (PLA) REVODE711H in a cool, dry, well-ventilated warehouse, away from direct sunlight, heat, moisture, and ignition sources. Keep original packaging sealed; reseal opened bags to prevent moisture uptake and hydrolysis. Avoid contact with strong acids, bases, and oxidizers. Recommended conditions: 10–30°C, low humidity, with good air circulation. Shelf life typically 12 months under these conditions. |
| Shelf Life | REVODE711H PLA shelf life is about 12 months when stored cool, dry, in unopened original packaging, protected from moisture. |
Drying prior to melt processing governs the molecular weight retention of Polylactic Acid (PLA) REVODE711H in injection-moulded rigid food-service articles. At ambient relative humidity above 60 %, open-air storage of pellets for more than 30 min before hopper loading can reintroduce surface moisture, so closed-loop desiccant dryers are used. Production-scale conditions use a desiccant wheel dryer with an air dew point of -40 °C and an inlet air temperature of 80–90 °C, with pellet residence time of 4–6 h to reduce residual moisture below 250 ppm as measured by ISO 15512:2019. Failure to maintain moisture below 300 ppm results in hydrolytic chain scission during plastication, observed as a drop in melt viscosity and increased ejection stringing on 60–120 kN clamp force machines. The resin is processed as a neat formulation with 0.1–0.5 wt% erucamide lubricant where mould release is difficult; 1–3 wt% of a mineral nucleating masterbatch is added only when cycle-time reduction below 18 s is required. Food-contact compliance for finished articles rests on the resin manufacturer’s declaration under Regulation (EU) No 10/2011, with overall migration testing of the final article per ISO 1186-1:2002; U.S. market conversion requires confirmation against the applicable FDA food-contact clearance for PLA. Injection moulding parameters include a barrel profile of 180–210 °C, a nozzle temperature of 200–215 °C, and a mould temperature of 80–110 °C to promote the formation of the α-crystalline phase. Mould temperatures above 105 °C reduce cycle time but increase the risk of warpage when demoulding occurs before the crystallinity measured by differential scanning calorimetry per ISO 11357-3:2018 reaches 35–45 %. Terminal article types include compostable cutlery, hot cup lids, portion cups, and stackable meal trays with wall thicknesses between 1.0 mm and 2.5 mm.
In single-serve coffee pod moulding, the annealing holding time controls whether the finished article survives brewing temperatures without dimensional distortion. Single-serve pod components made from REVODE711H must withstand brewing temperatures between 85 °C and 95 °C while maintaining dimensional stability under clamp compression. The formulation typically uses 10–20 wt% of a certified compostable polybutylene succinate (PBS) or poly(butylene adipate-co-terephthalate) (PBAT) blend to raise Charpy notched impact strength above 3.5 kJ/m² per ISO 179-1:2010; where neat resin is used, the addition ratio of nucleating agent is increased to 2–5 wt% to ensure sufficient crystallinity in thin walls. Production-scale injection moulding machines with clamp force from 1000 kN to 1800 kN are set to a melt temperature of 190–205 °C, a mould temperature of 85–105 °C, and an injection velocity of 150–250 mm/s. The critical process conflict lies in the wall thickness range of 0.6–1.2 mm: walls thinner than 0.6 mm produce short shots due to high melt viscosity, while walls thicker than 1.5 mm extend cooling time beyond 45 s and render the annealing step uneconomical. Post-mould annealing at 100–110 °C for 10–20 min raises the heat deflection temperature under 0.45 MPa load to at least 90 °C when tested in accordance with ISO 75-2:2013 Method B. Avoid melt residence time above 210 °C for more than 10 min because polylactide undergoes random chain scission and a measurable drop in melt viscosity. Compliance under EU 10/2011 for food contact is mandatory, and if the product is to be sold as compostable, the components must meet the disintegration requirements of EN 13432:2000 in a controlled composting test. Terminal product types include pod frames, capsule rings, tea pod bases, and reusable pod holders.
| Regulation / Standard | Jurisdiction / scope | Test method / clause | Quantitative limit or parameter |
|---|---|---|---|
| Regulation (EU) No 10/2011 | EU food contact | ISO 1186-1:2002 | Overall migration 10 mg/dm² |
| EN 13432:2000 | EU compostable packaging | ISO 16929:2021 | Disintegration ≥ 90 % in 12 weeks |
| ASTM D6400-21 | U.S. compostability | ASTM D5338-15 | Biodegradation ≥ 90 % in 180 days |
| REACH 1907/2006 | EU chemical safety | SVHC screening | No SVHC above 0.1 wt% |
| RoHS 2011/65/EU | EU electrical/electronic | IEC 62321-3-1:2013 | Pb, Hg, Cd, Cr(VI) each 1000 ppm; Cd 100 ppm |
Because high-speed sheet draw introduces extensional stress that can rupture a neat PLA melt at temperatures below 180 °C, thermoformed food packaging sheet based on REVODE711H requires the addition of a biodegradable toughening agent. The formulation uses 10–20 wt% polycaprolactone (PCL) or 5–15 wt% PBAT, with 0.5–1.0 wt% of an epoxidized soybean oil chain extender to raise melt strength during sheet formation. Sheet extrusion is performed on a single-screw extruder with an L/D ratio of 30:1 to 40:1, a melt temperature of 180–200 °C, and a slot die gap of 0.5–1.0 mm; chill roll temperatures are maintained at 30–60 °C to control crystallinity. The extruded sheet is subsequently thermoformed at sheet surface temperatures of 85–105 °C using plug-assisted moulds at 20–40 °C; the process requires precise sheet temperature control because deviations above 5 °C cause uneven wall thickness in final parts. Compliance for food contact falls under EU 10/2011 and applicable U.S. FDA clearances, while stacked trays claiming compostability are tested under EN 13432:2000 for disintegration and ecotoxicity. Terminal product types include clear clamshell containers, fresh produce trays, bakery inserts, and deli containers with wall thicknesses from 0.2 mm to 0.8 mm.
Extrusion of REVODE711H into filament for fused filament fabrication can be performed when the resin is compounded with a bio-based plasticizer, but published data for this specific configuration is limited. A starting formulation of 1–2 wt% triethyl citrate and 0.1–0.3 wt% of a phosphite antioxidant is used to maintain molecular weight during residence times up to 8 min in a twin-screw extruder with an L/D ratio of 25:1. The compounding stage is run at a melt temperature of 170–190 °C, followed by water-bath pelletizing and a second extrusion on a single-screw extruder with an L/D ratio of 24:1 and a die diameter of 1.75 mm ±0.05 mm or 2.85 mm ±0.05 mm. Dimensional stability during spooling is monitored with a laser micrometer, and density checks are performed per ISO 1183-1:2019; ovality above 0.05 mm is rejected because it causes extruder gear slippage in consumer printers. Compliance for non-food applications requires REACH 1907/2006 registration and RoHS 2011/65/EU screening; no food-contact declaration is required unless the printed part is used in food preparation. Terminal product types include 3D printed prototype fixtures, educational models, and jigs; the operational boundary is that REVODE711H filament should not be dried above 80 °C because pellet tackiness can block hopper flow. Avoid combination with amine-based color masterbatches due to accelerated molecular weight loss during reprocessing. Melt flow rate testing per ISO 1133-1:2022 is recommended on each incoming lot because deviations of ±1.5 g/10 min shift packing pressure requirements on filament extrusion lines.
For injection-moulded cosmetic packaging, REVODE711H is used as a neat resin with 0.1–0.5 wt% slip agent and 2–5 wt% mineral nucleating agent to obtain a surface that is dimensionally stable at 40 °C in warehousing environments. The melt temperature is maintained at 185–200 °C, the mould temperature at 70–90 °C, and the clamp force is set at 800–1500 kN for multi-cavity moulds with 8 to 16 cavities. The lower mould temperature compared with food-service applications reduces cycle time to 20–30 s but also lowers the degree of crystallinity, so the heat deflection temperature under 0.45 MPa load typically remains below 70 °C unless post-mould annealing is used. Compliance for cosmetic packaging requires REACH 1907/2006 and, if the article contacts cosmetic formulations, migration testing per ISO 1186-1:2002 is recommended using fatty food simulants such as simulant D2 at 40 °C for 10 days. Terminal product types include jars, compacts, lipstick tubes, and caps; transparent or translucent grades are not used because REVODE711H crystallizes into an opaque white article when processed at mould temperatures above 60 °C. Avoid combining REVODE711H with polyvinyl chloride regrind due to possible acid-catalyzed degradation at processing temperatures.
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Polylactic Acid (PLA) REVODE711H is a nucleated high-crystallinity polylactide resin supplied by Zhejiang Hisun Biomaterials Co., Ltd. under the REVODE product line. The grade is specified for injection molding, sheet extrusion, and thermoforming where the load-bearing part requires heat deflection temperature, stiffness, and short-term thermal stability above the capability of an unmodified amorphous PLA. The product is formulated to develop stiffness and heat resistance through rapid crystallization during heated-tool molding or post-mold annealing. Because the final thermal performance is process-dependent, the typical property data in Table 1 reflect test specimens prepared under crystallizing conditions. Values are lot averages from the manufacturer’s technical datasheet and do not establish minimum specification limits.
| Property | Test standard | Typical value |
|---|---|---|
| Melt flow rate, 190 °C/2.16 kg | ISO 1133-1 | 10–15 g/10 min |
| Density, 23 °C | ISO 1183-1 | 1.24–1.26 g/cm³ |
| Tensile stress at yield, 50 mm/min | ISO 527-2 | 60–65 MPa |
| Nominal tensile strain at break | ISO 527-2 | 2–4% |
| Flexural modulus, 2 mm/min | ISO 178 | 3400–3600 MPa |
| Flexural strength | ISO 178 | 95–105 MPa |
| Izod notched impact strength, 23 °C | ISO 180/A | 2.5–4.0 kJ/m² |
| Heat deflection temperature, 0.45 MPa | ISO 75-2/B | 85–100 °C |
| Heat deflection temperature, 1.8 MPa | ISO 75-2/A | 55–65 °C |
| Vicat softening temperature, A50 | ISO 306 | 95–110 °C |
| Melting temperature, DSC second heat | ISO 11357-3 | 170–178 °C |
| Glass transition temperature, DSC | ISO 11357-2 | 58–62 °C |
Lot-to-lot variation in melt flow rate is typically controlled within ±1.5 g/10 min at 190 °C/2.16 kg. Variation above this band changes holding-pressure requirements in multi-cavity tools and should be evaluated during incoming inspection before release to production. The grade is hygroscopic; pellet moisture above 0.025% by weight accelerates hydrolytic molecular-weight reduction during melt processing and causes splay, silver streaking, and a measurable loss of notched impact strength. Therefore, all processing recommendations begin with desiccant drying.
At 190 °C and 2.16 kg, the melt flow rate of REVODE711H is positioned in the medium-flow injection molding window, typically 10 g/10 min to 15 g/10 min. General-purpose extrusion and film PLA grades commonly fall between 4 g/10 min and 8 g/10 min, whereas high-flow injection grades exceed 30 g/10 min. The rheological separation is not limited to melt flow rate. The nucleating package in REVODE711H reduces the isothermal crystallization half-time at 110 °C to roughly < 1 min, compared with 5 min to 15 min for an unmodified amorphous PLA measured under the same DSC conditions. This accelerated crystallization shortens useful cooling time but narrows the cold-runner safety window; stagnant melt in runner segments below 90 °C can freeze earlier than in general-purpose grades, increasing gate-freeze variability and short-shot risk in valve-gated hot-runner systems with poor thermal uniformity.
The melt is pseudoplastic; injection pressure decreases with shear rate, but the shear-thinning exponent is lower than that of some high-flow PLA grades. Mold-filling simulation for REVODE711H should use measured capillary rheometry data rather than generic PLA viscosity models because the nucleating agent can raise the low-shear viscosity and alter the no-flow temperature in thin-wall simulation. Published production-scale data for this specific configuration is limited for multi-axis robot-handled tools; conventional three-plate and hot-runner injection mold data support the use of melt temperatures between 190 °C and 210 °C.
The pellet must be dried in a dehumidifying desiccant dryer with a dew point below -40 °C at 80 °C for 4 h to 6 h. The target residual moisture is ≤ 0.025% by weight, preferably below 0.015%. Hopper residence time after drying should not exceed 2 h unless the hopper is blanketed with dry air at a dew point below -30 °C. Opened bulk containers in a 50% RH warehouse can re-adsorb moisture within 24 h; production records should include dryer outlet dew point and feed throat temperature, not only the dryer setpoint. Barrel temperature profiles are typically set with the rear zone at 180 °C, middle zones at 190 °C to 200 °C, front zone at 200 °C to 210 °C, and nozzle at 200 °C to 210 °C. Melt temperature measured by an immersion probe should be kept below 220 °C; residence times above 5 min at 220 °C promote thermal degradation, molecular-weight loss, and an increase in melt flow rate beyond the specification band.
The recommended mold temperature for REVODE711H is 90 °C to 110 °C when the part must develop maximum heat deflection. In fully electric injection molding machines with water/oil mold temperature controllers, the setpoint at the controller must be corrected for pressure drop and thermal losses in the tool; cavity-surface thermocouples are the reference. At mold temperatures below 75 °C, the surface freezes before a percolated crystalline fraction develops, and the part retains the lower heat resistance of an amorphous PLA. Cooling time for a 2 mm plaque at 100 °C mold is typically 10 s to 15 s; for a 3 mm part, cooling time increases to 20 s to 30 s because crystalline exotherm must be removed before ejection. Ejection temperature should be below 60 °C to avoid post-ejection distortion.
On production-scale side-entry injection tools, the most frequent property rejection is not short-shot but bimodal heat deflection. Tools with uneven cooling channels, dead zones near the sprue, or large differences between cavity and core temperatures produce parts in which the core side develops lower crystallinity than the cavity side. When these parts are tested according to ISO 75-2/B at 0.45 MPa, heat deflection values can split into two populations: one at 85–100 °C for fully crystallized sections and one at 55–65 °C for frozen amorphous sections. The corrective action is not increased material drying or higher barrel temperature but tool thermal rebalancing, higher mold temperature, or post-mold annealing at 100 °C for 30 min to 60 min.
When a cold tool is specified for amorphous PLA, substituting REVODE711H without changing the tool temperature does not provide the expected heat resistance. At a cavity surface of 25 °C to 40 °C, the resin freezes rapidly and retains limited crystallinity. The resulting part may exhibit a heat deflection temperature at 0.45 MPa of 55 °C to 65 °C, which is indistinguishable from an unmodified PLA. To recover the thermal advantage of the grade, the part requires post-mold annealing at 100 °C for 30 min to 60 min; this condition is geometry-dependent and may cause shrinkage of 0.5% to 1.5% depending on part orientation and constraint during annealing. Annealing fixtures must allow uniform heat transfer and avoid clamping stresses that exceed the material’s modulus at the annealing temperature.
Injection speed is set by part geometry. For wall thicknesses below 1.0 mm, high initial injection velocity is required to prevent premature skin freeze, but the gate design must be sized for medium-flow viscosity. A side-gated 0.8 mm wall cup commonly fills at injection pressures of 70 MPa to 100 MPa when the tool is held at 100 °C; lower tool temperatures increase pressure demand and can trigger hesitation marks at the end of fill. Holding pressure is typically maintained until gate freeze; for a 1.0 mm diameter tunnel gate, gate-freeze time at 200 °C melt and 100 °C tool is approximately 3 s to 5 s. These are process-setting values, not product specifications, and must be confirmed by mold-filling studies.
Comparative data for REVODE711H, an unmodified amorphous PLA, and a high-flow PLA are shown in Table 2. The critical difference is not melt flow rate but crystallization rate and the resulting heat deflection window.
| Processing/application attribute | Test or evaluation method | REVODE711H | Unmodified amorphous PLA | High-flow PLA, MFR ≥ 30 g/10 min |
|---|---|---|---|---|
| Melt flow rate | ISO 1133-1, 190 °C/2.16 kg | 10–15 g/10 min | 4–8 g/10 min | ≥ 30 g/10 min |
| HDT, 0.45 MPa, crystallized specimen | ISO 75-2/B | 85–100 °C | 50–60 °C | 50–65 °C |
| Isothermal crystallization half-time at 110 °C | DSC | < 1 min | 5–15 min | not typically reported |
| Minimum recommended mold temperature for crystallized parts | Tool thermocouple | 90–110 °C | not applicable or 25–40 °C for amorphous parts | 25–40 °C |
| Optical clarity, 2 mm injection-molded plaque | ASTM D1003 haze | translucent to opaque; haze > 30% | transparent; haze < 5% | transparent; haze < 5% |
The heat deflection gain in REVODE711H is not an intensive property of the granule; it results from spherulitic development during non-isothermal cooling or isothermal annealing. When the tool is kept at 100 °C, lamellar growth proceeds until the crystalline fraction reaches a level sufficient to resist deformation at 0.45 MPa. Differential scanning calorimetry of a crystallized specimen typically shows a melting peak in the range of 170 °C to 178 °C and no significant cold-crystallization exotherm, indicating that crystallization was substantially completed during molding. In contrast, a cold-tool specimen shows a prominent cold-crystallization exotherm near 100–120 °C on first heating, which corresponds to the latent heat release that the process did not complete. This thermal history signature is used as an incoming part-quality check when heat deflection testing of production parts is not feasible.
The relationship between crystalline fraction and heat deflection is nonlinear. A small crystalline fraction is insufficient to support load at elevated temperature; measurable HDT improvement is observed only after the crystalline phase forms a percolated network. This threshold behavior explains why partially annealed parts may show no property gain despite passing an anneal time check. For a 3 mm wall part, annealing at 100 °C requires full part temperature soak; surface temperature alone is not an acceptable control.
REVODE711H is marketed for food-contact packaging applications, but compliance is not transferred from resin alone to the finished article. In the European Union, PLA food-contact materials are evaluated under Regulation (EU) No 10/2011; the supplier’s declaration of compliance should specify the migration test conditions and the overall migration limit. In the United States, PLA may be covered by an effective Food Contact Notification rather than a general section of 21 CFR 177. Processors must verify the food type, time, temperature, and thickness of the finished part. Migration testing under the EN 1186 series or Regulation (EU) No 10/2011 is finished-article-specific.
The bio-based carbon content can be verified by ASTM D6866 or EN 16640. Industrial compostability of finished articles is not an inherent property of the resin and must be certified according to EN 13432 or ASTM D6400; REVODE711H should not be described as home-compostable unless a specific home-compost certification has been obtained for the finished article. Industrial safety documentation is supported by REACH registration for the monomer and polymer where applicable, and the product can be assessed for RoHS Directive 2011/65/EU restrictions on lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE. RoHS applicability depends on the electrical and electronic equipment scope.
Operational boundaries include a maximum melt temperature of 230 °C; melt residence time above 5 min at 220 °C is not recommended. Avoid processing with wet regrind above 20% unless the regrind has been re-dried to below 0.025% moisture. Avoid combination with amine-based additives or alkaline fillers that promote hydrolysis, and avoid prolonged contact with strong aqueous acids or bases above 60 °C. The grade is not recommended for continuous load-bearing use above 100 °C without part-specific creep testing, and notched impact strength decreases below 0 °C; applications requiring high ductility at freezing temperatures should specify a toughened PLA instead.
