| HS Code | 116193 |
| Density | 1.25 g/cm³ |
| Melt Flow Rate | 10 g/10 min at 230°C, 2.16 kg |
| Tensile Strength | 28 MPa |
| Flexural Modulus | 2800 MPa |
| Elongation At Break | 5% |
| Izod Impact Strength Notched | 3.5 kJ/m² |
| Heat Deflection Temperature 1 8 Mpa | 72 °C |
| Vicat Softening Temperature | 115 °C |
| Shore D Hardness | 70 |
| Water Absorption 24h | 0.05% |
| Volume Resistivity | 1.0E+15 ohm·cm |
| Melting Point | 165 °C |
As an accredited Mineralblend PP Homopolymer PP-1400 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Mineralblend PP Homopolymer PP-1400 is supplied in 25 kg heat-sealed, polyethylene-lined kraft bags, palletized and stretch-wrapped. |
| Container Loading (20′ FCL) | 20′ FCL loading of Mineralblend PP Homopolymer PP-1400 in dry container, palletized multiwall bags, max 20-22 MT, secured for transit. |
| Shipping | Mineralblend PP Homopolymer PP-1400 ships as a non-hazardous thermoplastic resin in dry pellet form. It is packed in moisture-resistant bags, supersacks, or bulk hopper containers. Store away from direct sunlight and extreme heat. Ensure covered, dry transport to prevent contamination; no special hazmat classification required. |
| Storage | Store in a cool, dry, well-ventilated area away from direct sunlight, heat, and open flames. Keep containers tightly sealed to prevent moisture absorption and contamination. Avoid generating dust; maintain good housekeeping. No special temperature requirement, but stable under normal storage. Use within manufacturer’s recommended shelf life for best performance. |
| Shelf Life | Typically 12 months from production date when kept in original packaging under cool, dry conditions. |
Mineralblend PP Homopolymer PP-1400 is processed as a base injection-moulding feedstock for open-top pail and container production. The formulation is typically let down with 10–20 wt% talc or calcium carbonate masterbatch and 1–3 wt% colour masterbatch, with PP-1400 comprising 78–89 wt% of the final dry-blend. This addition ratio shifts the flexural modulus of the moulded sidewall from a nominal unfilled homopolymer value near 1,400 MPa into a range of 1,800–2,500 MPa when tested in accordance with ISO 178:2019, allowing a 20-L pail to sustain static top-load forces above 400 N without visible wall buckling. Stacking load transfer is evaluated under ISO 12048:1994 compression testing, using a closed-loop servo-hydraulic tester with a constant closure speed of 10 mm/min. For food-contact pail configurations, the compound must comply with FDA 21 CFR 177.1520(a)(3)(i) for polypropylene under food-type use conditions A through H, and with Regulation (EU) No 10/2011, Annex I, with overall migration limited to 10 mg/dm² under OM2 conditions. Drying of the PP-1400 compound is required at 80°C for 2–4 h when surface moisture exceeds 0.1 wt%, as determined by ISO 15512:2019 method B. Production is carried out on hydraulic injection-moulding machines with clamping force between 800 t and 1,200 t for a single-cavity 20-L pail or two-cavity 10-L pail tool, using a general-purpose screw with an L/D ratio of 20:1 to 24:1 and a compression ratio of 2.5:1 to 3.0:1. Melt temperature is held between 220°C and 240°C; exceeding 250°C for more than 10 min causes detectable chain scission and reduces melt viscosity by more than 15%, as tracked by ISO 1133-1:2022 melt mass-flow rate drift. Mould temperature is controlled at 15–35°C to balance crystallisation-rate-driven shrinkage against sidewall warpage. Terminal finished product types include 5-L, 10-L, and 20-L open-top pails, tamper-evident pail lids, and nestable industrial buckets, with post-industrial regrind addition limited to 20–30 wt% because higher regrind fractions reduce oxidative induction time as measured by ISO 11357-6:2018.
In underhood air-management components, unfilled homopolymer PP loses more than 40% of its room-temperature flexural modulus once continuous service temperature reaches 80°C, so PP-1400 is compounded with a 20–30 wt% talc masterbatch in a base-resin addition of 65–75 wt%, with the balance made up of 5–10 wt% ethylene-octene impact modifier for cold-impact resistance. This mineral-reinforced compound is injection-moulded on 1,000–2,500 t machines into air cleaner housings, radiator fan shrouds, HVAC ducts, and resonator chambers. Melt temperature is set at 230–250°C, and mould temperature is maintained at 30–50°C to delay flow-front freeze-off and allow adequate packing of ribs and boss features. The mineral filler increases heat deflection temperature under 0.45 MPa flexural load from a typical unfilled value near 95°C to a range of 115–130°C when tested according to ISO 75-2:2013 method B. Notched Charpy impact at 23°C is specified at a minimum of 3.5 kJ/m² under ISO 179-1:2010, while at -20°C the value may fall to 1.5–2.0 kJ/m², requiring a cold-impact modifier; published data for this specific configuration is limited below -30°C. Flammability is evaluated by ISO 3795:1989 with a maximum burn rate of 100 mm/min for interior compartments. Dimensional stability is assessed through 24-h water absorption of less than 0.05% under ISO 62:2008. Processing constraints include a narrow packing-pressure window: a hold-pressure drop of more than 15 bar from gate pressure can increase sink-mark depth on boss features beyond 0.05 mm, measured by optical profilometry after 25 full cycles. Terminal components include 1.6-L to 3.0-L air cleaner housings tested for burst pressure above 2.5 bar, fan shrouds with 400–600 mm diameters, and HVAC ducts with wall thickness from 1.8 mm to 2.5 mm.
For stackable beverage and logistics crates, the PP-1400 base resin is dry-blended at 85–90 wt% of the moulding mass, with 2–4 wt% pigment masterbatch, 0.3–0.8 wt% hindered-amine light stabiliser masterbatch, and up to 25 wt% clean in-house regrind. Crates intended for repeated food contact are assessed under Regulation (EU) No 10/2011 with specific migration limits for total non-volatile substances below 10 mg/dm², and under FDA 21 CFR 177.1520 for polypropylene used across wet and dry food categories. A production difficulty encountered on 500–800 t hydraulic injection-moulding machines is gate bloom at the hot-edge gate when the combined masterbatch addition ratio exceeds 15 wt%; the low-molecular-weight vehicle resins in the masterbatch migrate to the flow front and deposit as a whitened film within the first 5–10 mm of the gate. This is measured by diffuse reflectance spectrophotometry and is considered unacceptable if the colour difference ΔE exceeds 1.0 CIELAB unit under ISO 11664-4:2008. Processing is therefore maintained with melt temperature between 210°C and 240°C, mould temperature between 20°C and 40°C, and injection velocity of 100–150 mm/s at the flow front to limit excessive shear heating. Tooling uses a 4-cavity or 6-cavity stack mould, with each cavity having a shot weight of 1.5–3.5 kg. Stacking compression load is evaluated by applying 85% of the expected top-crate load for 24 h and measuring permanent deformation, which is limited to 2 mm by end-user specification. Terminal finished product types include 20-bottle beverage crates, 600 mm × 400 mm ventilated storage totes, and nestable agricultural harvest crates with drainage openings. Amine-based antistatic masterbatches are avoided because they generate deposit on mould vents after 20,000 cycles.
| Application sector | Primary compliance standard | Critical test method | Typical PP-1400 addition ratio |
|---|---|---|---|
| Open-top pails and buckets | FDA 21 CFR 177.1520; EU 10/2011 | ISO 12048:1994; ISO 178:2019 | 78–89 wt% |
| Underhood air-management parts | ISO 3795:1989 | ISO 75-2:2013; ISO 179-1:2010 | 65–75 wt% |
| Stackable crates and logistics totes | EU 10/2011; FDA 21 CFR 177.1520 | ISO 11664-4:2008 | 85–90 wt% |
| Appliance structural components | IEC 60335-1; RoHS 2011/65/EU | IEC 60695-2-11:2021; ISO 899-2:2003 | 75–85 wt% |
| Electrical enclosure parts | IEC 60695-11-10; IEC 60664-1:2020 | IEC 60112:2020; IEC 60243-1:2013 | 70–75 wt% |
| Garden furniture shells | EN 581-1:2017 | EN 1728:2012; ISO 4892-2:2013 | 85–95 wt% |
Where PP-1400 is used for washing machine top-panel frames, dryer impellers, and motor mounting brackets, the compound is formulated at 75–85 wt% base resin with 15–25 wt% talc masterbatch, 1–3 wt% black or grey pigment masterbatch, and 0.5–1 wt% acid scavenger masterbatch. Appliance structural parts produced from this compound are injection-moulded on 350–800 t two-platen machines using two-plate moulds with direct sprue gating, melt temperature between 220°C and 245°C, mould temperature between 30°C and 50°C, and holding pressure between 40 bar and 60 bar. The mineral filler reduces creep under static load, with tensile creep modulus evaluated under ISO 899-2:2003 at 23°C and 50% relative humidity. Glow-wire flammability is tested according to IEC 60695-2-11:2021 at 650°C, with no ignition permitted for parts within 3 mm of current-carrying components. Electrical safety is supported by IEC 60335-1 for household and similar electrical appliances, and materials are assessed for restricted substances under Directive (EU) 2015/863 amending RoHS Directive 2011/65/EU. Terminal finished product types include washing machine top-panel frames, dryer impeller hubs, motor mounting brackets, pump housings, and appliance terminal covers. Drying is required at 80°C for 2–3 h when plant relative humidity exceeds 60%.
Electrical enclosure parts produced from PP-1400 use a mineral reinforcement level between 20 wt% and 30 wt%, with the base resin added at 70–75 wt% and the remaining formulation consisting of 0.5–2 wt% colour masterbatch and 0.5–1 wt% acid scavenger. This addition ratio provides sufficient rigidity for junction boxes and switch mounting plates while maintaining mould-flow behaviour in thin ribs not below 1.2 mm wall thickness. Processing is performed on 250–800 t injection-moulding machines with cold or hot runner systems, melt temperature from 220°C to 245°C, mould temperature from 30°C to 50°C, and screw back pressure of 8–15 bar. Flammability classification is determined by IEC 60695-11-10 with an HB rating accepted for non-current-carrying enclosure parts. Comparative tracking index is tested under IEC 60112:2020 and is typically not less than 600 V for talc-filled PP at this filler loading. Dielectric strength is evaluated according to IEC 60243-1:2013 on 1.5 mm plaques, with acceptance above 20 kV/mm. Creepage distance design follows IEC 60664-1:2020 pollution degree 2 and material group II. Published data for PP-1400 specifically under IEC 60664-1:2020 creepage verification at 2.5 mm wall is limited; component-level verification is therefore required for final electrical safety approval. Terminal finished product types include electrical junction boxes, switch mounting plates, terminal covers, conduit fittings, and relay sockets. Brominated diphenyl ether flame-retardant masterbatches are avoided due to RoHS Directive 2011/65/EU restricted substance limits.
Garden furniture shells and monobloc chair seats are moulded with PP-1400 as the dominant formulation component at 85–95 wt%, combined with 5–15 wt% mineral masterbatch, 0.3–0.8 wt% hindered-amine UV stabiliser masterbatch, and 1–3 wt% pigment masterbatch. Regrind from post-industrial runners and rejected parts is incorporated up to 30 wt% after granulation and magnetic separation. Processing takes place on 800–1,500 t injection-moulding machines for single-cavity monobloc chair tools, with melt temperature from 200°C to 230°C, mould temperature from 15°C to 30°C, and cycle times between 45 s and 75 s. Gas-assisted injection is applied selectively for thick armrest and leg sections to reduce sink marks and part weight. Mechanical strength is verified under EN 1728:2012 seating test methods, including repeated loading of 100,000 cycles at 1,000 N for adult-use seating. Outdoor durability is assessed by ISO 4892-2:2013 accelerated weathering, with typical acceptance of ΔE below 3.0 after 1,000 h xenon-arc exposure. Compliance for outdoor furniture is according to EN 581-1:2017, covering dimensional stability, shear and racking resistance, and safety of accessible edges. Terminal finished product types include monobloc chairs, garden stool shells, rectangular table tops, and armrest shells for modular outdoor seating.
Competitive Mineralblend PP Homopolymer PP-1400 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!
Mineralblend PP Homopolymer PP-1400 is a mineral-reinforced polypropylene homopolymer compound supplied for injection-moulded rigid components. The model designation PP-1400 identifies a propylene homopolymer matrix under ISO 1043-1:2022 and a commercial mineral filler package whose type and loading must be read from the supplier’s grade designation block. Published data for this specific configuration is limited in open literature; therefore the following processing and performance framework is drawn from established behaviour of mineral-filled PP-H systems evaluated under ISO 19069-1:2015 and ASTM D4101. The compound is typically produced by melt mixing on a twin-screw extruder with L/D 32:1 to 44:1, using kneading-block elements to disperse mineral agglomerates and a downstream feeding profile that limits filler breakage. Dispersion quality controls surface appearance, weld-line strength, and mould shrinkage anisotropy.
PP-1400 is intended for dimensionally stable parts that require higher stiffness than unfilled PP-H and less warpage than glass-fibre-reinforced PP. Candidate uses include appliance structural frames, HVAC ducting, electrical enclosures, automotive interior trim carriers, and fluid reservoirs. Each application requires validation on production-scale tooling because mineral-filled PP-H exhibits reduced tensile elongation and lower weld-line strength than unfilled PP-H. In these grades, weld-line regions may retain only 50–70% of the parent tensile strength measured to ISO 527-2:2012; gate placement and melt-front temperatures therefore determine the acceptable load path. The filler raises modulus and reduces mould shrinkage but increases density and reduces low-temperature toughness relative to unfilled PP-H.
Mineral-filled PP-H does not require hydrolysis drying in the manner of polyamide or PET. Surface moisture adsorbed on the mineral filler or on regrind, however, can generate splay, silver streaks, and internal porosity during injection moulding. When storage exposed to relative humidity above 60% or cold-to-warm room transfer has occurred, pre-drying at 80°C for 2–4 h in a desiccant dryer with a dew point of at least -20°C is required. Drying time should be extended by 1–2 h when regrind content exceeds 15 wt%.
Melt temperature measured by a nozzle probe should be maintained between 200°C and 240°C. The upper limit is controlled by thermo-oxidative chain scission: at melt temperatures above 260°C, the melt mass-flow rate begins to shift upward during barrel residence, and impact properties decline. The lower limit is set by viscosity and filler dispersion; insufficient melt temperature produces flow lines and higher mould pressure. Injection pressure is typically 70–120 MPa, with hold pressure adjusted until gate freeze is confirmed by part weight stabilisation. Premature hold release produces sink marks above ribs and bosses, particularly with mineral-filled grades because melt compressibility is lower than unfilled PP-H.
Mould surface temperature should be set from 20°C to 60°C. Lower settings shorten cycle time but increase frozen-in orientation and differential shrinkage; higher settings improve surface gloss, fill of thin ribs, and dimensional reproducibility. Cooling time should be established on the production tool using sequential pressure or part-weight methods, not copied from unfilled PP-H data. Reciprocating-screw injection moulding machines with screw L/D 18:1 to 24:1 and compression ratio 2.0:1 to 2.5:1 are suitable. Mineral fillers increase screw and check-ring wear relative to unfilled PP-H; bimetallic or nitrided barrel surfaces are specified for extended campaigns, and the non-return valve should be inspected after every 5,000–10,000 shots depending on filler hardness.
Capillary rheometry according to ISO 11443:2021 can be used to assess lot-to-lot flow behaviour. Mineral-filled PP-H grades commonly show apparent shear viscosity between 80 Pa·s and 200 Pa·s at 1,000 s⁻¹ and 230°C, with a power-law index typically 0.25–0.40. Gate shear rates above 100,000 s⁻¹ may cause jetting and filler orientation; gate land length should be 0.5–0.7 times the part wall thickness, and the gate area should be sized to limit shear rate below 50,000–80,000 s⁻¹ for unfilled sections.
Table 1 compares representative property windows for unfilled PP-H and mineral-filled PP-H compounds with filler loadings between 20 wt% and 40 wt%. The values are not lot-specific data for PP-1400; they constitute the industrial envelope used for material selection. A supplier certificate of analysis is required to confirm the PP-1400 lot.
| Property | Test standard | Unfilled PP-H typical range | Mineral-filled PP-H typical range | PP-1400 certified value |
|---|---|---|---|---|
| Density | ISO 1183-1:2019 | 0.90–0.91 g/cm³ | 1.05–1.25 g/cm³ | Lot certificate required |
| Melt mass-flow rate at 230°C, 2.16 kg | ISO 1133-1:2022 | 4–20 g/10 min | 8–25 g/10 min | Lot certificate required |
| Tensile modulus | ISO 527-2:2012 | 1,300–1,800 MPa | 2,500–4,000 MPa | Lot certificate required |
| Flexural modulus | ISO 178:2019 | 1,200–1,600 MPa | 2,200–3,800 MPa | Lot certificate required |
| Notched Charpy impact strength at 23°C | ISO 179-1:2010 | 3–6 kJ/m² | 2–5 kJ/m² | Lot certificate required |
| Heat deflection temperature at 1.8 MPa | ISO 75-2:2013 | 50–60°C | 60–80°C | Lot certificate required |
| Mould shrinkage, parallel | ISO 294-4:2018 | 1.0–2.0% | 0.6–1.2% | Lot certificate required |
The mineral filler increases tensile and flexural modulus while lowering notched Charpy impact and elongation at yield. The tensile modulus shift from 1,300–1,800 MPa to 2,500–4,000 MPa is a primary differentiator for PP-1400-class materials. However, the modulus increase is not fully isotropic in injection-moulded parts; filler platelets align partially with the flow direction, so cross-flow shrinkage can be larger than parallel-flow shrinkage. Measurement to ISO 294-4:2018 on an end-gated plaque is required before assigning tooling shrink allowances. Moisture uptake of the mineral filler can slightly raise density and reduce electrical surface resistivity; electrical applications should be evaluated on moulded plaques, not on granular material.
Direct substitution into tooling designed for unfilled PP-H requires alteration of the shrinkage allowance by 0.4–0.8 percentage points because the mineral filler reduces mould shrinkage from roughly 1.0–2.0% to 0.6–1.2%. The lower shrinkage can create ejector pin push marks, sticking on core pins, or overpacking if the hold pressure and cushion are not retuned. Production-scale observations on mineral-filled PP-H have shown that a cushion of 3–5 mm with a gradual hold-pressure decay reduces gate blush and internal stress. The check-ring non-return valve must be maintained; filler-induced wear permits screw cushion variability and inconsistent shot size.
Compared with PP impact copolymer, PP-1400-class material gives higher stiffness and heat deflection but lower low-temperature impact. Notched Charpy values at -20°C should be generated to ISO 179-1:2010 before replacing an impact copolymer in a cold-weather application. For components that experience snap-fit assembly, the lower elongation at break of mineral-filled PP-H must be considered; snap-fit deflection should be limited to the strain level confirmed by ISO 527-2:2012 and not to the unfilled PP-H strain at yield. In general, mineral-filled PP-H is selected when an application is stiffness-limited rather than ductility-limited.
Sheet extrusion and thermoforming are possible when the mineral filler loading is below approximately 20 wt%; higher loadings reduce melt elasticity and sag resistance. Thermoforming behaviour must be tested on a sag fixture and not inferred from injection-moulding data. Blow moulding of PP-1400 is generally not recommended because the mineral filler reduces parison melt strength and narrows the processing window compared with high-melt-strength PP grades.
| Requirement | Standard or regulation | Verification method | PP-1400 acceptance condition |
|---|---|---|---|
| Melt mass-flow rate | ISO 1133-1:2022 | Capillary melt flow test | Report g/10 min at 230°C, 2.16 kg |
| Filler content | ISO 3451-1:2019 | Thermogravimetric ash content | Match supplier grade designation |
| Density | ISO 1183-1:2019 | Immersion or gas pycnometer | Report g/cm³ |
| Tensile modulus | ISO 527-2:2012 | Conditioned specimen test | Report MPa |
| Notched Charpy impact | ISO 179-1:2010 | Conditioned specimen test | Report kJ/m² at 23°C and -20°C |
| RoHS hazardous substance restrictions | Directive 2011/65/EU amended | XRF screening and chemical test report | Supplier declaration required per lot |
| REACH SVHC communication | Regulation EC 1907/2006 | Article 33 notification | Supplier declaration required if applicable |
| Food-contact status | EU 10/2011, US FDA 21 CFR 177.1520 | Migration testing | Only if certified for food contact |
Electrical enclosures and junction boxes are one application envelope for PP-1400-grade materials. Comparative tracking index should be measured to IEC 60112:2009, and surface resistivity to IEC 62631-3-1:2016 on moulded plaques with the same mould surface finish as production parts. The mineral filler can reduce surface resistivity if the filler contains conductive impurities; a lot-level ionic cleanliness check is part of the supplier technical datasheet. For enclosures under a glowing-wire requirement, testing to IEC 60695-2-11:2021 or the end-product standard is mandatory; the homopolymer matrix and mineral filler can generate drips unless flame-retardant additives are present. Published data for this specific configuration is limited; therefore the supplier’s material declaration and independent testing are required before electrical certification.
Automotive duct and air-management components benefit from the lower warpage of mineral-reinforced PP-H, but underhood exposure demands long-term heat ageing to ISO 188:2011 and chemical resistance to ISO 22088-3:2003 or engine-fluid immersion defined by the OEM specification. Creep and fatigue performance at elevated temperature should be assessed when the part carries clamp or hose loads. PP-H grades are not recommended for pressure-bearing hot-water fittings without creep rupture testing to ISO 1167-1:2006 because homopolymer polypropylene has lower long-term hydrostatic strength than random copolymer or β-nucleated PP-HM grades. These limitations define the boundary between PP-1400 and other PP compounds; the choice should follow the mechanical, thermal, and regulatory load case established by the end-use standard.
