| HS Code | 781799 |
| Density | 1.25 g/cm³ |
| Melt Flow Rate | 20-30 g/10 min (190 °C/2.16 kg) |
| Melting Point | 170-175 °C |
| Glass Transition Temperature | 58-62 °C |
| Heat Deflection Temperature | 95 °C (1.82 MPa) |
| Vicat Softening Temperature | 100 °C |
| Tensile Strength | 50-55 MPa |
| Elongation At Break | 4-5% |
| Flexural Strength | 80-85 MPa |
| Flexural Modulus | 3500-3600 MPa |
| Notched Izod Impact Strength | 2.0-2.5 kJ/m² |
| Crystallization Temperature | 100-120 °C |
As an accredited BBCA Polylactic Acid (PLA) FY804 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | BBCA Polylactic Acid (PLA) FY804 is typically supplied in 25 kg moisture-barrier bags, palletized and shrink-wrapped for transport. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): BBCA PLA FY804 in 25 kg bags, palletized, stretch-wrapped, desiccant-protected, securely braced for ocean shipment. |
| Shipping | BBCA Polylactic Acid (PLA) FY804 is non-hazardous and not regulated for transport. It is typically shipped in 25 kg moisture-barrier bags, palletized and stretch-wrapped. Transport in clean, dry vehicles; avoid heat, sunlight, and moisture. Store below 50°C. UN/Class/PG: not applicable. Handle carefully to prevent bag damage. |
| Storage | Store BBCA Polylactic Acid (PLA) FY804 in a cool, dry, well-ventilated warehouse, away from direct sunlight, heat, moisture, and ignition sources. Keep original bags tightly sealed to prevent hydrolysis; avoid contact with acids, alkalis, and oxidizers. Maintain low humidity and temperatures preferably below 30°C. Use FIFO stock rotation. |
| Shelf Life | BBCA PLA FY804 shelf life: 2 years when stored sealed in a cool, dry, ventilated area away from moisture and heat. |
Dried FY804 pellets at a residual moisture content not exceeding 250 ppm are metered into a 120–180 t toggle-clamp injection molding machine fitted with a general-purpose screw of L/D 20:1 and compression ratio 2.2:1. Barrel profile is set from rear to nozzle at 180, 190, 200, and 205 °C; mold temperature is held at 20–30 °C with injection speed 50–80 mm/s and back pressure 5–10 bar. Incoming material should be tested by melt flow rate per ISO 1133-1:2022 at 190 °C and 2.16 kg; a shift in MFR above 10% after drying indicates hydrolytic degradation and the batch should be quarantined. Compliance for food service articles is verified under EU Regulation (EC) No 10/2011 using overall migration testing to EN 1186-1, with the final article demonstrating industrial compostability under EN 13432:2000 and ASTM D6400-21. The formulation is run as 100 wt% FY804; where ejection is inconsistent on untreated tool steel, 0.2–0.5 wt% of an erucamide-based slip additive is incorporated, and where higher heat deflection is required, 0.5–2.0 wt% PDLA-based nucleating agent is added. Terminal products include cutlery, portion cups, thin-wall lids, and single-use trays. Production-scale records identify predrying failure as the most frequent cause of silver streaking and gate blush in thin-wall cutlery; at ambient relative humidity above 60%, sealed bags once opened must be re-dried at 80 °C for 4 h before processing. Melt residence above 220 °C for longer than 5 min accelerates lactide reformation and causes plate-out on mold vents after 4–6 h of continuous running. Mold temperatures above 40 °C produce post-mold warpage after 24 h due to cold crystallization; shrinkage anisotropy is controlled by keeping mold temperature below 30 °C.
Sheet extrusion for food packaging converts 85–90 wt% FY804 with 10–15 wt% PBAT in a twin-screw compounding step followed by a single-screw sheet line with L/D 28:1 and a barrier screw with compression ratio 2.5:1. Melt temperature at the die lip is held at 190–205 °C, chill roll temperature at 40–50 °C, and sheet thickness from 0.3–0.8 mm. Compliance for the final thermoformed articles falls under EU Regulation (EC) No 10/2011 for food contact and EN 13432:2000 for industrial compostability; migration testing is performed to EN 1186-1 with an overall migration limit of 10 mg/dm². The process is specifically limited by the low melt strength of PLA: vacuum-only tooling is restricted to draw ratios not exceeding 1.5:1, while deeper parts require plug-assist forming and draw ratios above 2.0:1 demand a melt strength additive at 0.5–1.0 wt% or a reduction of stock temperature to 185 °C. Terminal products are trays, deli containers, blisters, and portion cups. At storage relative humidity above 50%, sheet reabsorbs moisture and forms bubbles during thermoforming; pre-drying of formed sheet is required at 60 °C for 2 h if the material has been exposed beyond 30 min. Chill roll release is improved when roll surface temperature is maintained above 40 °C; below that level the sheet adheres and transfers surface defects.
| Standard / Regulation | Scope | Key requirement / test condition |
|---|---|---|
| EU Regulation (EC) No 10/2011 | Food contact plastics | Overall migration ≤ 10 mg/dm² per EN 1186-1 |
| EN 13432:2000 | Packaging recoverable through composting | Disintegration ≥ 90% after 12 weeks; biodegradation ≥ 90% within 6 months |
| ASTM D6400-21 | Compostable plastics | Disintegration, biodegradation, no ecotoxicity |
| EU REACH (EC) No 1907/2006 | Chemical safety | SVHC content ≤ 0.1 wt% |
| RoHS 2011/65/EU | Electrical and electronic equipment | Pb, Hg, Cd, CrVI, PBB, PBDE ≤ 0.1 wt% |
Monofilament extrusion of FY804 for fused filament fabrication uses a single-screw extruder with L/D 24:1, a melt pump, and a laser micrometer closed loop for diameter control. Pellets are dried to below 250 ppm moisture and processed at 190–210 °C melt temperature through a 1.75 mm or 2.85 mm die, followed by a water bath at 45 °C and pulling to a diameter tolerance of ±0.05 mm. The formulation is 100 wt% FY804 or 99.9 wt% FY804 with 0.1–0.3 wt% talc nucleating agent to stabilize crystallization during the cooling stage. Compliance is maintained under EU REACH (EC) No 1907/2006 and RoHS 2011/65/EU; no food-contact claim is typically made for filament. Terminal products are PLA filaments for fused filament fabrication of prototyping jigs, educational models, and light-duty fixtures. Published data for FY804-specific line speeds in this configuration is limited; the parameters above are consistent with general PLA injection-grade pellet conversion. Exposure of dried pellets to 50% RH for more than 2 h before extrusion raises filament diameter variation from ±0.05 mm to ±0.09 mm due to moisture-induced melt viscosity shift. Blending with polycarbonate or ABS regrind is not recommended because viscosity mismatch causes phase separation and filament fracture at the die.
Injection stretch blow molding of cold-fill bottles begins with preform injection on a 250–350 t injection molding machine with L/D 20:1 screw, barrel temperatures 190–205 °C, and chilled preform mold at 10–15 °C. The preforms are then reheated to 85–100 °C and stretch-blow molded at a blow mold temperature of 25–30 °C. Formulation addition ratio is 100 wt% FY804; a PDLA nucleating additive at 0.5–1.5 wt% is used where shorter cycle times are required, but the additive level must not exceed 2.0 wt% because higher levels produce haze at the gate. Compliance is assessed under EU Regulation (EC) No 10/2011 for cold-fill dairy and water bottles and EN 13432:2000 for compostable packaging claims. Terminal products are cold-fill dairy containers, water bottles, and non-carbonated beverage bottles. Operational boundaries are explicit: FY804 articles are not suitable for hot-fill above 45 °C or pasteurization; carbonated soft drink filling is excluded because PLA gas barrier is inferior to PET. Mold release is controlled with 0.2–0.4 wt% erucamide where demolding force exceeds machine ejection capacity. Preform moisture above 250 ppm before reheat causes internal haze and bubbles in the bottle sidewall; preforms should be blow molded within 4 h at 50% RH or stored in sealed foil-lined containers.
| Process | Melt temperature | Tool / bath temperature | Drying requirement | Critical operating limit |
|---|---|---|---|---|
| Injection molding of cutlery | 190–210 °C | 20–30 °C | 80 °C for 4 h; moisture ≤ 250 ppm | Residence time above 220 °C ≤ 5 min |
| Sheet extrusion / thermoforming | 190–205 °C | Chill roll 40–50 °C | 80 °C for 4 h | Draw ratio ≤ 1.5:1 vacuum-only |
| FFF monofilament | 190–210 °C | Water bath 45 °C | 80 °C for 4 h | Diameter tolerance ±0.05 mm |
| ISBM bottle preform | 190–205 °C | Preform mold 10–15 °C; reheat 85–100 °C | 80 °C for 4 h | Not for hot-fill above 45 °C |
| Coffee capsule molding | 190–205 °C | Mold 20–30 °C | 80 °C for 4 h | Hot-runner ≤ 210 °C; residence 5 min |
| Spunbond nonwoven | 200–215 °C | Calender 50–60 °C | 80 °C for 4 h | Roll surface ≤ 65 °C |
Thin-wall capsule bodies of 0.8–1.2 mm nominal thickness are injection molded from FY804 in multi-cavity hot-runner tools with valve-gated drops to minimize shear. Melt temperature at the machine nozzle is held at 190–205 °C; hot-runner manifold temperature must not exceed 210 °C, and melt residence time above 210 °C is controlled to less than 5 min to limit molecular weight reduction. Formulation is 98.5–100 wt% FY804 with 0.5–1.5 wt% talc or mineral nucleating additive; addition of 0.5–2.0 wt% PDLA-based nucleating agent raises HDT and improves dimensional stability at filling temperatures up to 85 °C. Compliance for compostable capsules is required to EN 13432:2000 and ASTM D6400-21, including disintegration ≥ 90% after 12 weeks and ecotoxicity testing; food contact compliance is assessed under EU Regulation (EC) No 10/2011 with overall migration 10 mg/dm². Terminal products are coffee capsules, tea capsule bodies, and dairy portion capsules. Production-scale observations show that hot-runner plate-out from low-molecular-weight PLA fractions becomes visible after 5–6 h when manifold temperature is set above 220 °C; purge with low-density polyethylene at 180–200 °C is required to remove degraded residue. Cycle times of 12–18 s are typical for 1.0 mm wall thickness; higher mold temperatures above 35 °C increase cycle time and cause sticking on polished surfaces.
Spunbond nonwoven production from FY804 uses a single-screw extruder with L/D 30:1, a melt pump, and a spinneret with hole diameters of 0.3–0.5 mm operated at 0.4–0.6 g/min per hole. Melt temperature is 200–215 °C; drawing air is supplied at 3000–5000 m/min filament velocity to produce filaments of 10–20 µm diameter. The formulation is 97–100 wt% FY804 with 0–3 wt% TiO₂ masterbatch for UV opacity and whiteness. Compliance for hygiene and agricultural nonwovens falls under EU REACH (EC) No 1907/2006 and, where compostable crop cover claims are made, EN 13432:2000; for food-contact nonwovens such as tea filter paper, compliance under EU Regulation (EC) No 10/2011 is required. Terminal products are hygiene top sheets, wipes, tea filter webs, and crop cover. Thermal bonding is carried out on embossed calender rolls at 50–60 °C; because PLA softens above 60 °C, production speeds must avoid roll surface temperatures above 65 °C or filament breakage increases. Published data for FY804-specific spunbond throughput is limited; the values above are consistent with general PLA spunbond grade behavior. For crop cover end-use, ultraviolet exposure causes progressive embrittlement; inclusion of a UV stabilizer masterbatch at 0.5–2.0 wt% is required for outdoor service beyond a single growing season. Published data for FY804-specific weathering rates is limited.
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BBCA Polylactic Acid (PLA) FY804 is a melt-processable thermoplastic polyester manufactured from starch-derived lactic acid. The resin is supplied as cylindrical granules with a nominal solid density of 1.24 g/cm³ under ISO 1183-1:2019 and a melt volume-flow rate controlled within 15–30 cm³/10 min at 190 °C and 2.16 kg load under ISO 1133-1:2022. This flow class places FY804 in the medium-viscosity injection-moulding range. The polymer backbone is poly(L-lactic acid) with limited D-isomer content, CAS 26100-51-6. In unfilled amorphous form, the grade is used for thin-wall disposable cutlery, cosmetic packaging, and short-term food-service articles where the service temperature remains below 50 °C. Because PLA hydrolyses at processing temperatures when moisture exceeds 250 ppm, the lot-specific certificate of analysis and drying protocol are the primary process control points.
At receiving, pellet moisture should be measured according to ISO 15512:2019. Typical packaged moisture is below 500 ppm, and regrind from edge trim or rejected mouldings can exceed 1,500 ppm after 8 h in an unheated hopper at 23 °C and 60 % RH. A desiccant-bed dryer with a −40 °C dew point and 80 °C inlet air is required to lower moisture below 250 ppm within 4 h. Melt viscosity loss is measurable when moisture exceeds 400 ppm; at 200 °C the apparent viscosity at 100 s⁻¹ can decrease by 10–15 % relative to dry pellets. The melt density at 190 °C is approximately 1.08 g/cm³. Residual lactide is usually below 0.3 wt%, and values above 0.5 wt% signal regrind segregation or dryer residence time above 12 h.
Pre-drying is mandatory when the pellet surface has been exposed to ambient air for more than 30 min or when relative humidity in the material-handling area exceeds 60 %. In central drying systems, dry-air purge to the feed throat should be maintained at 1.5 m³/h per 100 kg/h throughput. Operators should not combine FY804 with polyester regrind having melt-point differences greater than 100 °C; stratified melt streams and screw slippage result. The dryer hopper residence time should not exceed 6 h at 80 °C because prolonged exposure above 70 °C can initiate pre-crystallisation and fuse pellets. Incompatibilities include strong bases, amine-based additives, and high-moisture cellulosic fillers that accelerate ester hydrolysis.
Thermal degradation of FY804 becomes measurable when the melt remains above 190 °C for longer than 5 min. On a 25 mm co-rotating twin-screw extruder with L/D 44:1 and screw speed 350 min⁻¹, specific mechanical energy input should remain below 0.18 kWh/kg to prevent local temperature overshoot above 220 °C. At melt temperatures between 200 °C and 220 °C, capillary rheometry at 100 s⁻¹ shows an apparent viscosity reduction of 8–12 % per 10 °C increment. Barrel profiles are normally set with the feed throat at 155–165 °C, compression zone at 185–195 °C, metering zone at 195–205 °C, and nozzle at 195–205 °C. Screw recovery should be completed in 1.5–2.5 s; longer recovery under back pressure above 10 MPa increases shear heating. A compression ratio of 2.2:1 to 2.8:1 and non-return valve clearance below 0.02 mm are specified for consistent shot weight. If the material is held in the barrel for more than 10 min during stoppages, the first 10–15 shots should be purged to remove low-viscosity degraded melt.
For a nominal wall thickness of 1.5 mm, the nozzle melt temperature is 195–205 °C. The mould surface temperature is 20–30 °C for gloss and rapid solidification, or 80–110 °C when a nucleating masterbatch is used to raise heat resistance. Injection velocity should fill the cavity in 0.3–0.8 s; filling times above 1.2 s produce weld-line weakness in multi-gate tools. Hydraulic holding pressure of 60–80 MPa maintained for 0.5–1.0 s per millimetre of wall thickness controls sink marks. Clamp force should be allocated at 30–40 kN per square centimetre of projected area. Draft angles shall not fall below 1° on textured surfaces and 0.5° on polished steel. Hot-runner manifold zones are set at 195–205 °C; valve-gate pin temperatures above 230 °C are not permitted because local shear at the gate raises melt temperature by 15–20 °C. Gates smaller than 0.8 mm generate shear rates above 10,000 s⁻¹, accelerating chain scission and gate blush.
Isothermal crystallisation at 100 °C in a differential scanning calorimeter under ISO 11357-3:2018 produces a cold-crystallisation exotherm peak within 8–12 min. In moulded articles, this corresponds to an annealing dwell of 15–20 min at 100 °C. The degree of crystallinity rises from below 5 % in rapid-cooled amorphous parts to 35–40 % after annealing, increasing specific volume change on cooling and requiring tooling allowances of 1.2–1.8 %. Annealed parts provide Vicat softening temperature near 150–155 °C but may exhibit warpage if packing pressure is below 60 MPa.
Mechanical testing on injection-moulded ISO type 1A specimens conditioned at 23 °C and 50 % RH for 48 h gives a tensile yield stress of 55–60 MPa under ISO 527-2:2012, tensile modulus of 3.4–3.6 GPa, and elongation at break of 3–6 %. Notched Charpy impact strength at 23 °C is 2.5–3.5 kJ/m² under ISO 179-1:2020. Heat deflection temperature at 0.45 MPa is 50–55 °C under ISO 75-2:2020 for amorphous samples. Annealing at 100 °C for 20 min raises the Vicat softening temperature to approximately 150–155 °C but increases article shrinkage by 1.2–1.8 %. Published data for this specific configuration is limited in open sources; qualification should rely on the manufacturer’s certificate of analysis and on moulded plaques produced under ISO 294-1:2017.
| Property | Test Method | Representative Range |
|---|---|---|
| Melt volume-flow rate | ISO 1133-1:2022 | 15–30 cm³/10 min at 190 °C, 2.16 kg |
| Solid density | ISO 1183-1:2019 | 1.24 g/cm³ |
| Tensile yield stress | ISO 527-2:2012 | 55–60 MPa |
| Tensile modulus | ISO 527-2:2012 | 3.4–3.6 GPa |
| Elongation at break | ISO 527-2:2012 | 3–6 % |
| Notched Charpy impact | ISO 179-1:2020 | 2.5–3.5 kJ/m² |
| Heat deflection temperature | ISO 75-2:2020 | 50–55 °C at 0.45 MPa |
| Moisture at packaging | ISO 15512:2019 | < 500 ppm |
Compared with high-molecular-weight PLA grades having MFR below 6 g/10 min, FY804 fills spiral-flow cavities more readily. At 190 °C and 80 MPa injection pressure in a 2 mm spiral mould, the flow length can be 20–35 % longer than a sheet-extrusion PLA grade. The higher flow reduces injection pressure for thin-wall moulding but lowers melt strength, making FY804 unsuitable for cast film or blown film without branching modifiers. Against nucleated high-heat PLA grades, the amorphous FY804 exhibits lower HDT; service above 55 °C requires annealing or a nucleated masterbatch. The moisture sensitivity is similar across PLA grades, but the narrower barrel-temperature window of FY804 relative to oil-based engineering resins must be considered when replacing acrylonitrile-butadiene-styrene in tools designed for melt temperatures of 230–250 °C. Comparative qualification should follow ISO 294-1:2017 and ISO 527-2:2012.
Typical production applications include single-use cutlery, cosmetic jars, promotional articles, and food-service trays. On a 250-tonne injection moulding machine running a 16-cavity hot-runner cutlery tool with 2.0 mm wall thickness and 25 °C mould temperature, cycle times of 12–18 s are achievable. Thin-wall cups below 0.8 mm may require injection speeds above 300 mm/s and nozzle temperatures above 210 °C; this condition shortens melt residence time but can increase lactide fuming. The material is not recommended for continuous load-bearing service above 50 °C in amorphous form because modulus retention under 0.45 MPa load declines sharply above 55 °C. It is also unsuitable for hot-fill containers, dishwasher-safe articles, and applications requiring prolonged exposure to alkaline cleaning agents.
Lot-specific compliance documentation should be requested for food-contact packaging under EU No 10/2011, with overall migration limited to 10 mg/dm² under EN 1186-1:2002. For compostability claims, article geometry, thickness, and disintegration behaviour must be tested under EN 13432. REACH compliance under Regulation (EC) No 1907/2006 and RoHS compliance under Directive 2011/65/EU are typically documented by the supplier. Storage in sealed polyethylene-lined bags at 20–30 °C and below 60 % RH preserves melt stability for 24 months from production. Opened bags should be re-sealed immediately and consumed within 24 h to prevent moisture uptake above 400 ppm.
| Regulation/Standard | Scope | Relevance to FY804 |
|---|---|---|
| REACH | Regulation (EC) No 1907/2006 | Substances of very high concern below 0.1 wt% per lot |
| RoHS | Directive 2011/65/EU | Pb, Hg, Cd, Cr(VI), PBB, PBDE below threshold limits |
| EU No 10/2011 | Overall migration | Food-contact articles require lot-specific testing at 10 mg/dm² |
| EN 13432 | Industrial compostability | Biodegradation, disintegration, ecotoxicity as applicable to packaging |
