Dongguan Anshuyi ABS EA310A
- Product Name: Dongguan Anshuyi ABS EA310A
- Factroy Site: Yinchuan, Ningxia, China
- Price Inquiry: sales8@ascent-chem.com
- Manufacturer: Ascent Petrochem Holdings Co., Limited
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- Dongguan Anshuyi ABS EA310A is typically used in formulations when impact strength/heat deflection temperature/melt flow rate and melt temperature/mold temperature/moisture content must be controlled within specific ranges.
| HS Code | 815115 |
| Productname | Dongguan Anshuyi ABS EA310A |
| Manufacturer | Dongguan Anshuyi |
| Materialfamily | ABS |
| Grade | EA310A |
| Chemicalcomposition | Acrylonitrile butadiene styrene copolymer |
| Polymertype | Thermoplastic |
| Physicalform | Pellets |
| Typicalprocessingmethod | Injection molding |
As an accredited Dongguan Anshuyi ABS EA310A factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Dongguan Anshuyi ABS EA310A is typically packaged in 25 kg moisture-resistant woven bags, palletized for industrial storage and transport. |
| Container Loading (20′ FCL) | 20′ FCL dry container loaded with Dongguan Anshuyi ABS EA310A resin in palletized bags, securely strapped and sealed for export. |
| Shipping | Dongguan Anshuyi ABS EA310A is shipped as non-hazardous ABS resin pellets in sealed moisture-barrier bags or drums. Not UN-regulated for transport. Protect from heat, sunlight, and moisture; keep containers labeled and sealed; store in a cool, dry, ventilated area using standard industrial handling. |
| Storage | Store Dongguan Anshuyi ABS EA310A in a cool, dry, well-ventilated warehouse away from direct sunlight, heat, moisture, and oxidizers. Keep in original sealed packaging, palletized, and protected from pressure or deformation. Maintain low humidity, avoid ignition sources, use oldest stock first, and follow the supplier SDS and local regulations. |
| Shelf Life | Dongguan Anshuyi ABS EA310A shelf life is about 12 months when kept cool, dry, sealed, and away from sunlight. |
Industrial conversion of Dongguan Anshuyi ABS EA310A is assessed only against downstream routes where ABS is a defined engineering thermoplastic, not as a general-purpose substitute. Because the public datasheet for this grade may not state the full melt flow rate, rubber particle size, or fractional melt viscosity, the process windows below are class-level for ABS conversion and must be locked against the batch certificate under ISO 1133-1, ASTM D638, and ASTM D256. Moisture control is the first gate in every route: ABS degrades at melt temperatures above 260 °C through chain scission and oxidation, producing yellowing, free-butadiene odour, and weld-line embrittlement. Drying to 0.05 wt% moisture or less is non-negotiable for injection moulding and sheet extrusion. The routes covered are electroplated exterior trim, refrigerator liner sheet, solvent-welded drainage pipes, thin-wall business machine housings, interlocking toy components, and electrical accessory housings.
Automotive electroplating is a processing route where failure originates in the injection moulding operation, not in the plating tank. A plating-capable ABS must contain a dispersed polybutadiene phase at 18–23 wt%, with a surface-rubber particle diameter of 0.1–0.5 μm after moulding; only this morphology allows the chromic acid etch to form microanchoring cavities without dissolving the surrounding styrene-acrylonitrile matrix. If Dongguan Anshuyi ABS EA310A is supplied as a general-purpose or extrusion-speciality grade, the particle size distribution may be coarser or less uniform, and the plater will observe over-etching, skip plating, or adhesion failure at the gate land rather than a clean peel at the substrate. Pre-dry the pellets at 80 °C for 3–4 h to 0.05 wt% moisture before melting. Set barrel temperatures at 245–260 °C and the mould at 60–80 °C to reduce frozen-in orientation; use a hold pressure of 55–70% of peak injection pressure and avoid excessive packing near the gate because residual stress at the gate is amplified during the etching bath. Etch according to ASTM B727 using a solution of CrO₃ at 380–420 g/L and H₂SO₄ at 180–220 g/L, held at 65–70 °C for 8–12 min depending on the surface-rubber distribution. After neutralization and Pd/Sn activation, deposit electroless nickel at 0.2–0.5 μm, then electrolytic copper at 10–20 μm, semi-bright nickel at 10–15 μm, bright nickel at 5–10 μm, microporous nickel at 1–2 μm, and chromium at 0.25–0.5 μm. Peel adhesion is measured by ASTM B533; exterior automotive trim processors commonly reject parts below 0.8 N/mm at 23 °C, but published data for this specific Dongguan Anshuyi grade in this configuration is limited, so the mill certificate must be checked for plating approval before production release. Thermal-cycle testing at −40 °C to +80 °C for 100 cycles is the practical acceptance screen, and the dominant failure mode for non-plating ABS is post-plating microcracking around sharp gate vestiges or flow weld lines.
What Limits Melt Curtain Stability in ABS Sheet for Refrigerator Liners?
In sheet extrusion and downstream thermoforming, the key processing conflict is between high melt temperature for gauge uniformity and melt-phase elasticity for curtain stability. Dry EA310A at 80–85 °C for 3–4 h to a residual moisture of 0.03–0.05 wt%. The extruder should have a barrier screw with L/D of 30:1–36:1 and compression ratio 2.5:1–3.0:1, with barrel zones set from 190 °C at the feed throat to 220 °C at the metering zone, a gear-pump inlet at 230–240 °C, and a flexible-lip sheet die at 220–230 °C. The vertical three-roll stack is maintained at 80–95 °C; lower roll temperatures reduce gloss and induce edge curl, while higher roll temperatures can cause the sheet to adhere to the polishing rolls. For refrigerator liners, target sheet thickness is 2.5–3.5 mm, and regrind content should not exceed 20 wt% because repeated heat history consumes antioxidant protection and produces yellowing at the thermoformer. During vacuum forming, heat the sheet surface to 160–180 °C while keeping the core below 140 °C, and run the aluminium mould at 60–80 °C with plug assist when the draw ratio exceeds 1:1. The terminal liner wall commonly thins from 3.0 mm to 1.0–1.5 mm at the bottom corners; if the EA310A batch has a bimodal low-molecular-weight tail or the MFR under ISO 1133-1 is above the supplier specification, the extruded sheet will sag before the mould closes and the corners will fail by thickness-induced embrittlement. Sheet tensile data should be cross-checked by ISO 527-2 and ASTM D638 on both machine and transverse directions, because sheet orientation can be 10–20% higher in tensile yield in the machine direction and this influences plug-assist force.
Solvent-Weld Integrity in ABS DWV Pipe Under Parallel-Plate Loading
Drain, waste, and vent pipe and fitting conversion of EA310A is only viable when the resulting system meets the dimensional and joint-fusion requirements of ASTM D2661 or EN 1455-1. Pipe extrusion uses a single-screw extruder with L/D 30:1 and a screw compression ratio of 2.5:1–3.5:1, with melt temperature 200–230 °C and die temperature 190–210 °C; vacuum calibration at −0.08 MPa is maintained at the sizer to control out-of-roundness below the dimensional tolerance in ASTM D2661. Pipe wall thickness variation should be held within ±0.05 mm because solvent-cement joint strength in ABS is governed by interpenetration of the softened pipe and fitting surfaces; a wall-thickness fluctuation greater than ±0.05 mm produces a low-pressure seam at the thinner side. Injection-moulded fittings are processed at melt 230–250 °C and mould 40–60 °C, dried to 0.05 wt% moisture to avoid microvoids at the sprue and weld lines. Solvent cement must comply with ASTM D2235; the fitting surface must be roughened and cleaned before cement application because mould release agents and high-gloss surfaces inhibit fusion. After assembly, allow 24 h at 23 °C before mechanical testing. Parallel-plate loading is conducted according to ASTM D2412 at 5% deflection; a drop in pipe stiffness above the allowed minimum often indicates insufficient wall-thickness control or excessive regrind content. Long-term hydrostatic strength should be evaluated by ISO 1167 if the pipe is exposed to hot water discharge cycles. Operationally, ABS DWV pipe is not rated for compressed air, potable pressure water, or continuous exposure to petroleum-based caulks because environmental stress cracking can occur at sealed joints.
If Thin-Wall Business Machine Housings Are Moulded Without Sequential Valve Gating
Thin-wall enclosures for business machines, routers, and copiers convert from pellet to final part in electric injection moulding machines with screw diameters of 25–35 mm and clamp force selected to maintain cavity pressure below 60–80 MPa. Nominal wall thickness is 1.2–1.8 mm, and flow-length-to-wall-thickness ratios routinely exceed 150:1; under these conditions, switchover from injection to hold by screw position, not timer, and use injection velocities of 180–300 mm/s to prevent premature solidification at the melt front. The hot runner system should apply sequential valve gating with valve delays of 0.2–0.5 s so that knit lines are displaced to non-visible internal ribs. Set melt temperature at 240–260 °C and mould temperature at 55–75 °C; higher mould temperature improves weld strength but extends cycle time. Packing pressure is held at 60–80 MPa for 2–4 s, then dropped in two stages to reduce gate blush. Ribs must not exceed 60% of the nominal wall thickness, and bosses must be cored with a wall of 0.9–1.1 mm to avoid sink marks on the exterior. Regrind incorporation is limited to 10 wt%; above this level, the melt flow rate shifts upward under ISO 1133-1 and mould filling becomes unstable. Drying at 80 °C for 3 h to 0.05 wt% moisture is required. Dimensional shrinkage is checked by ISO 294-4; ABS typically exhibits mould shrinkage of 0.4–0.7% in the flow direction and 0.5–0.8% transverse, so gate and rib geometry must be tuned to the measured EA310A batch value. Final parts are flame tested under IEC 62368-1; unmodified EA310A must be treated as UL 94 HB unless a certified FR grade is supplied, and no V-0 claim can be transferred to a general-purpose ABS without full third-party UL classification.
For interlocking toy components, injection-mould EA310A at melt 230–250 °C and mould 40–80 °C, condition parts at 23 °C for 24 h, and verify clutch force retention under EN 71-1 while confining pigment masterbatches to the migration limits for Cd, Pb, Cr(VI), Hg, As, Se, and Ba in EN 71-3; maintain part mass tolerance within ±0.5% because interlocking force depends on wall thickness and post-shrinkage geometry rather than surface hardness alone.
Electrical Accessory Housings Demand Glow-Wire Verification, Not Only Vicat Softening
Socket boxes, switch frames, and adapters impose a glow-wire requirement that cannot be satisfied by Vicat softening temperature alone. Process EA310A at melt 230–250 °C and mould 45–65 °C after drying at 80 °C for 2–4 h. The mould must maintain mounting-aperture tolerances within ±0.05 mm; this level of dimensional reproducibility requires a two-stage holding profile rather than a single constant pressure. Vicat softening temperature should be measured by ISO 306 Method B50, with ABS class values typically 95–105 °C, but the exact EA310A batch value must be read from the certificate because Vicat temperature is not a proxy for creep under load. Continuous service should be capped at 60–70 °C for unmodified ABS cabinets; above this band, moulded bosses around metal screw inserts begin to creep and the insert loses torque retention. Glow-wire testing is performed by IEC 60695-2-11 at 650 °C only for parts that may not serve as fire enclosures; if the end-product standard requires 750 °C or 850 °C ignition resistance, neat EA310A will typically fail and a flame-retardant compound with a UL Yellow Card under UL 94 V-0 must be specified instead. Outdoor and humid service require UV stabilization or a protection cover; ABS exposed to direct sunlight without a cap layer will chalk, embrittle, and lose impact strength within 12–24 months in tropical climates. The tracking index under IEC 60112 should be checked on the final pigmented form, because high-carbon pigmentation can alter surface conductivity and reduce margin to the product specification.
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- Dongguan Anshuyi ABS EA310A is manufactured under an ISO 9001 quality system and complies with relevant regulatory requirements.
- COA, SDS/MSDS, and related certificates are available upon request. For certificate requests or inquiries, contact: sales8@ascent-chem.com.
Dongguan Anshuyi ABS EA310A is a thermoplastic acrylonitrile-butadiene-styrene resin supplied by Dongguan Anshuyi Plastic Materials Co., Ltd. The designation EA310A is a supplier-specific grade identifier; no independent datasheet containing product-specific mechanical, thermal, or rheological values was located in the public domain at the time of writing. Published data for this specific configuration is limited, so the following sections separate class-typical ABS behavior from mandatory supplier-reported lot values. The grade is introduced for injection molding and extrusion processing environments where an unfilled ABS with balanced flow, moderate impact resistance, and standard heat capability is being evaluated against a part drawing. Every numerical value marked as class-typical must be confirmed against the EA310A certificate of analysis before production release.
What documentation should accompany a shipment of EA310A before it is released to a molding floor?
For an unfilled ABS grade, a technically sufficient certificate of analysis under ISO 2580-1:2002 and ISO 2580-2:2003 should report density by ISO 1183-1:2019, melt volume-flow rate by ISO 1133-1:2022 at 220 °C/10 kg, tensile yield stress and elongation at break by ISO 527-2:2012, Charpy notched impact strength by ISO 179-1:2010, and Vicat softening temperature by ISO 306:2022. Receiving inspection for appliance and electrical applications commonly adds ASTM D638-14 tensile modulus, ASTM D790-17 flexural modulus, ASTM D256-10 Izod impact, and UL 94 flammability classification. If the EA310A lot report omits these values, the material cannot be qualified against a drawing callout requiring ISO 527-2:2012 or ASTM D638-14 proof properties. The certificate should also state moisture content at the time of packaging.
With EA310A, the first production audit point is not the melt pump but the desiccant dryer return-air dew point. Moisture absorbed during storage and transport hydrolyzes the butadiene phase at processing temperatures, producing surface splay, weld-line weakness, silver streaks, and intermittent gas-lines on molded parts. The drying condition used for unfilled ABS across injection molding and extrusion is 80 °C to 90 °C for 2 h to 4 h in a desiccant dryer with a dew point of -30 °C or lower, targeting residual moisture below 0.02 %. Hot-air tray dryers frequently fail to meet this threshold when plant relative humidity is above 60 %; under such conditions the drying time should be extended toward 4 h and the return-air dew point should be verified with a portable dew-point meter before releasing the material. Feeder hoppers should be closed and purged with dry air rather than left open to ambient plant air during extended runs.
Melt temperature and drying retention time determine the incidence of splay, weld-line weakness, and black speck contamination in EA310A
On a production injection molding line, the melt temperature measured by an insertion pyrometer at the nozzle is ordinarily held between 210 °C and 250 °C for unfilled ABS. Barrel zones are profiled from rear to nozzle at 190–210 °C, 200–230 °C, 210–240 °C, and 200–230 °C; the nozzle zone is normally kept near the final barrel setpoint to avoid premature solidification at the sprue bushing. Mold temperature is commonly controlled between 40 °C and 80 °C. Thin-wall parts below 1.5 mm require the upper mold-temperature boundary and a fast injection speed, while sections above 3.0 mm are better served by the lower boundary and reduced packing pressure to minimize sink marks. For a small housing with a projected area of 300 cm², cavity pressure in unfilled ABS typically requires 30 MPa to 60 MPa, corresponding to a clamp force of approximately 90 t to 180 t. Barrel residence time should remain below 5 min at the upper melt-temperature limit and preferably below 3 min when the press runs in semi-automatic mode. Published data for EA310A-specific melt viscosity is limited; the supplier-reported melt volume-flow rate by ISO 1133-1:2022 should be obtained before adapting temperature profiles, because low-flow ABS variants may require a nozzle setpoint 10–20 °C higher than the mid-range profile.
Melt homogeneity in EA310A is affected by the screw compression ratio, barrier flighting, and check-ring leakage. On injection molding machines with general-purpose screws of 20:1 compression ratio, melt temperature heterogeneity can exceed ±5 °C across the shot when the screw lacks a mixing section. A screw with a Maddock or pineapple mixing tip, or a barrier screw with a compression ratio between 2.2:1 and 2.8:1, reduces this spread to below ±2 °C in unfilled ABS. Check-ring leakage above 2 % of shot volume should be corrected before process capability studies because it introduces cushion variability and short-shot risk in valve-gated tools. Injection velocity should be linearized by setting velocity profile steps rather than a single high-speed fill; fast initial fill above 100 mm/s can create jetting and air entrapment in thick sections, while slow fill below 30 mm/s may cause flow marks on the part surface.
On a single-screw extrusion line with a screw diameter of 45–75 mm and an L/D ratio of 28:1–36:1, ABS sheet and profile production requires a reverse-temperature profile that keeps the feed throat below 50 °C while the compression zone reaches 210–240 °C. The breaker plate and screen pack are sized to generate 20–50 bar of back pressure for homogenization without excessive shear heating. Die zone temperature uniformity controls sheet gauge stability more than the average melt temperature; die zones should not deviate more than ±3 °C across the width. When the line stops for more than 10 min, the screw should be retracted and purged with a low-viscosity acrylic or ABS purge compound because static residence at full temperature accelerates butadiene degradation and generates black specks. For profile calibration, vacuum sizer water should be maintained between 10 °C and 35 °C because rapid surface quenching locks in orientation that affects notched impact response.
When EA310A is dropped into a mold qualified for high-impact or high-heat ABS, which substitutions require documented lot data?
The substitution decision is governed by melt viscosity, heat deflection temperature, and notched impact response. High-impact ABS grades commonly exhibit Charpy notched impact values above 25 kJ/m² or Izod values above 300 J/m, while general-purpose unfilled ABS typically falls within 10–25 kJ/m² and 100–300 J/m depending on rubber content and test temperature. High-heat ABS grades carry Vicat softening temperatures above 105 °C and heat deflection temperatures under 1.82 MPa above 95 °C, while standard grades often remain below these thresholds. EA310A should not be assumed to meet high-impact or high-heat callouts without a lot-specific ISO 179-1:2010, ISO 306:2022, and ASTM D648-18 report. If the existing tool contains tall ribs, bosses, or flow-length-to-wall-thickness ratios above 150:1, a lower-flow ABS can increase injection pressure by 15–25 % in thin sections and generate short shots without a melt-temperature adjustment. Mold shrinkage should also be revalidated using ISO 294-4:2018 because packing pressure and gate freeze dictate final dimensions; unfilled ABS typically exhibits shrinkage between 0.4 % and 0.9 %, but the exact value is tool- and lot-dependent.
Mechanical, thermal, and rheological test methods for receiving inspection
For comparative receiving inspection, a laboratory matrix should be fixed before EA310A lot evaluation. The following table lists typical ranges for unfilled ABS classes, not EA310A batch values.
| Property | Test method | General-purpose ABS | High-impact ABS | High-heat ABS |
| Density | ISO 1183-1:2019 | 1.03–1.07 g/cm³ | 1.02–1.06 g/cm³ | 1.04–1.07 g/cm³ |
| Melt volume-flow rate | ISO 1133-1:2022, 220 °C/10 kg | 15–30 cm³/10 min | 8–20 cm³/10 min | 5–15 cm³/10 min |
| Tensile yield stress | ISO 527-2:2012 | 35–50 MPa | 30–45 MPa | 40–55 MPa |
| Charpy notched impact, 23 °C | ISO 179-1:2010 | 10–25 kJ/m² | 25–45 kJ/m² | 10–20 kJ/m² |
| Vicat softening temperature, B50 | ISO 306:2022 | 90–105 °C | 85–100 °C | 105–120 °C |
| Heat deflection temperature, 1.82 MPa | ASTM D648-18 | 75–95 °C | 70–90 °C | 95–110 °C |
| Mold shrinkage | ISO 294-4:2018 | 0.4–0.9 % | 0.4–0.8 % | 0.5–0.9 % |
Capillary rheometry at 230 °C can resolve whether EA310A follows the expected shear-thinning behavior of unfilled ABS. Apparent viscosity in the shear-rate range 100–10 000 s⁻¹ typically falls from roughly 300 Pa·s to 30 Pa·s for general-purpose ABS, but lot-specific curves should be supplied. The power-law index measured over 100–1 000 s⁻¹ is commonly 0.3–0.5; a lower index indicates more shear sensitivity and faster fill-pressure decay in thin walls.
In appliance housings and electrical enclosures, molded EA310A parts are normally conditioned at 23 ± 2 °C and 50 ± 10 % RH for 24 h before dimensional audit because ABS dimensions shift with moisture uptake and frozen-in stress. Parts measured immediately after ejection can be 0.1–0.3 % outside final stabilized dimensions, especially in long ribs and flat panels. For comparative dimensional capability studies, measurement should follow ISO 291:2008 conditioning atmospheres. If the part is to be painted or electroplated, surface contamination from mold-release or moisture must be removed, but published data on EA310A adhesion behavior is limited.
For high-gloss sheet and extruded profiles, EA310A lot acceptance cannot be based solely on viscosity and impact. Surface gloss measured at 60° geometry according to ISO 2813:2014 varies with butadiene particle size and mold polish; high-gloss ABS grades typically exceed 90 GU, while matte grades may fall below 30 GU. If the application requires a specified gloss band, a glossmeter should be used on molded plaques before production. Color stability is evaluated by ISO 4892-2:2013 accelerated weathering with a xenon-arc source; unfilled ABS can show marked yellowing because of the unsaturated butadiene component, and a UV stabilizer package is not implied by the designation EA310A.
What mold and gate design constraints expose the practical limits of a standard ABS grade?
Gate type changes local shear and therefore local melt temperature. In unfilled ABS, tab, fan, or edge gates with a land length shorter than 0.5 mm are preferred; pin gates below 0.8 mm may generate excessive shear and material discoloration at high fill speeds. Runner diameters below 4 mm in cold-runner tools can restrict flow and increase pressure drop beyond the machine’s available injection pressure. Valve-gate systems should open after the melt front reaches the gate, and gate-opening delay longer than 0.3 s can create visible hesitation lines. Hot-runner manifolds should use externally heated, bimetallic or stainless-steel components with setpoint control better than ±1 °C; poorly tuned zones can produce material degradation that appears as brown streaks even when the barrel setpoints remain within the standard window. For EA310A, published data on hot-runner residence-time stability is limited, so a purge study with color concentrate is a direct production-line method to estimate residence-time distribution.
Where does EA310A sit relative to flame-retardant ABS and PC/ABS blends?
Flame-retardant ABS grades typically carry a UL 94 V-0 classification at 1.5 mm and may require lower melt temperatures near 200–220 °C to avoid degradation of the FR package. EA310A, when supplied as an unfilled non-flame-retardant ABS, should not be treated as equivalent to a V-0 material unless the lot-specific UL 94 card is provided. PC/ABS blends differ primarily in low-temperature impact retention: many PC/ABS grades maintain Charpy notched impact above 40 kJ/m² at -30 °C, whereas standard ABS undergoes a ductile-to-brittle transition and cannot be assumed to retain room-temperature impact at negative temperatures. In applications requiring chemical resistance to industrial cleaners, standard ABS is susceptible to stress cracking under contact with ketones, esters, and some chlorinated solvents; PC/ABS blends may exhibit a different but still solvent-dependent response. Published data for EA310A chemical resistance under specific cleaner families is limited, so immersion testing under ISO 22088-3:2008 or ASTM D543-21 is required before field use.
