| HS Code | 872331 |
| Brand | Moplen |
| Product Name | MOPLEN PP 5706P |
| Material | Polypropylene (PP) Homopolymer |
| Form | Pellets |
| Melt Flow Rate Mfr 230 C 2 16 Kg | 3.0 g/10 min |
| Density | 0.90 g/cm³ |
| Melting Point | 165 °C |
| Crystallization Temperature | 111 °C |
| Tensile Strength At Yield | 34 MPa |
| Elongation At Yield | 11 % |
| Flexural Modulus | 1700 MPa |
| Charpy Notched Impact At 23 C | 4.0 kJ/m² |
| Vicat Softening Point A50 | 156 °C |
| Heat Deflection Temperature 0 45 Mpa | 110 °C |
| Optical Clarity | High clarity |
As an accredited MOPLEN PP 5706P factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | MOPLEN PP 5706P polypropylene is supplied in 25 kg moisture-resistant bags, palletized and stretch-wrapped for safe handling and transport. |
| Container Loading (20′ FCL) | 20′ FCL loaded with MOPLEN PP 5706P polypropylene pellets, packed in woven bags on pallets, securely stowed for safe transport. |
| Shipping | Polypropylene (Moplen PP 5706P) pellets, non-hazardous. Not regulated as dangerous goods for road, sea, rail, or air transport. Packed in 25 kg bags on heat- and moisture-protected pallets. Store away from ignition sources and excessive heat. No UN number required. Transport classification: non-dangerous cargo. |
| Storage | Store MOPLEN PP 5706P in a cool, dry, well-ventilated area away from direct sunlight, heat, and open flames. Keep containers tightly closed and protected from physical damage. Avoid dust accumulation; keep away from strong oxidizers. Maintain good housekeeping to minimize spillage and static discharge. Observe local storage regulations and ensure proper labeling. |
| Shelf Life | MOPLEN PP 5706P has an indefinite shelf life when stored in original, unopened packaging away from heat, moisture, and UV light. |
For automotive interior trim tools, MOPLEN PP 5706P is specified for door panel lower inserts, glove box frames, B-pillar lower trims and scuff plates where low-temperature impact and grain reproduction are controlled by melt temperature and tool temperature. The material is fed at 100 parts virgin pellet combined with 1.0–2.5 wt% colour masterbatch and 0.10–0.25 wt% antistatic masterbatch; production lots are benchmarked to ISO 179-1:2010 Charpy notched impact at 23°C and -20°C, tensile data under ISO 527-2:2012, flexural modulus under ISO 178:2019, and melt flow rate under ISO 1133-1:2022 at 230°C/2.16 kg. Automotive interior requirements include ISO 3795 horizontal flammability, VDA 277 total VOC emission and DIN 75201:2011 fogging, while REACH SVHC screening applies to feedstock. Injection moulding on clamped force machines from 800 kN to 1,800 kN uses barrel profiles 220–240°C, screw L/D 20:1 to 24:1, and tool temperature 25–50°C; hot-runner valve gate sequencing is adjusted when weld lines cross load-bearing bosses because the dispersed ethylene-propylene phase elongates along the flow front and produces a visible low-gloss weld line. Increasing melt temperature above 250°C is not recommended because residual stabiliser consumption accelerates and the -20°C Charpy notched impact can fall due to matrix chain scission; conversely, tool temperatures below 20°C yield surface delamination and poorer grain replication. After ejection, parts are conditioned at 23°C/50% RH for 24 h under ISO 291:2008 before Charpy sampling; dimensional audits on first-off parts follow ISO 294-1:2017. Production experience on multi-gate interior panels indicates that packing pressure should be set at 60–80% of peak injection pressure and that screw backpressure around 5–12 bar hydraulic stabilises dosing without excessive shear heating. Terminal part types are door panel lower inserts, glove box frames, B-pillar lower trims and scuff plates.
Because returnable logistics crates are subjected to corner-drop impact, stack compression and prolonged UV exposure, MOPLEN PP 5706P is specified for stackable pallets and collapsible crates when the part must survive -20°C drop tests without rupture. The application is governed by ISO 8611-1:2011 pallet deflection and corner-drop testing, with transport simulation under ASTM D4169-16 and photostability assessed by ISO 4892-3:2016 cycle 2. The moulding feedstock consists of 85–95 wt% 5706P virgin pellet, 5–15 wt% clean recycled PP regrind, 0.5–1.5 wt% UV masterbatch and 1.0–2.0 wt% colour concentrate; regrind above 15 wt% should be pre-dried at 80°C for 2–4 h when ambient relative humidity exceeds 70%. Injection moulding machines with clamp forces from 2,000 kN to 4,500 kN and a 20:1 to 24:1 L/D screw are used with melt temperatures 210–250°C and cold moulds at 10–40°C; thick ribs and corner bosses require packing pressures at 70–85% of peak and holding times of 15–30 s depending on wall stock. The critical processing limit is melt residence time above 250°C, because the heterophasic phase coarsens and the part loses low-temperature ductility at -20°C; screw rotation should be controlled to keep melt residence below 6 min, or streaking and surface gloss variation become field defects. Terminal products are collapsible crates, bulk containers, dunnage trays and stackable pallets.
Frequently selected for injection-moulded open-head pails and drum closures, MOPLEN PP 5706P is processed with 100 parts virgin resin, 0.5–1.5 wt% UV masterbatch, 1.0–2.0 wt% colour concentrate and 0.05–0.15 wt% processing stabiliser masterbatch; the formulation is assessed for food contact under EU 10/2011 and FDA 21 CFR 177.1520, while dangerous goods containers undergo UN 1H2 open-head drum and 3H1 jerrican drop, leakproofness and hydraulic pressure tests. Injection moulding machines of 1,500 kN to 4,000 kN clamp force use melt temperatures 210–250°C, mould temperatures 15–40°C, and screw L/D 20:1 to 24:1; the thick lid undercuts and bail-mount bosses are packed at 65–80% of peak pressure to prevent sink marks and stress cracking around the seal land. Melt temperatures above 250°C and residence times exceeding 6 min are controlled because oxidative degradation at the hot-runner gate produces brittle failure at -20°C. Terminal products are open-head drums, industrial pails, drum lids, and tamper-evident cover assemblies.
In underbody shields and wheel arch liners, MOPLEN PP 5706P is used as the impact-modified base resin when flexural stiffness must increase without sacrificing -30°C ductility. The formulation window is 60–85 wt% 5706P, 10–30 wt% surface-treated talc masterbatch, 2–5 wt% carbon black masterbatch, and 0.10–0.30 wt% processing stabiliser masterbatch; flexural modulus under ISO 178:2019 and Charpy notched impact under ISO 179-1:2010 at -30°C are lot acceptance tests. Compliance is linked to REACH SVHC screening and automotive exterior chemical resistance under ISO 9227:2022 neutral salt spray, while flammability is screened by ISO 3795. The production route is twin-screw compounding at L/D 40:1 to 44:1 with high-shear screw elements, followed by injection moulding or thermoforming; talc addition above 25 wt% is avoided where impact is non-negotiable because the dispersed rubber phase is diluted and the brittle-to-ductile transition shifts upward. Vacuum venting at 0.07–0.09 MPa downstream of the side feeder removes residual moisture and degradation volatiles; talc grades with free iron above 0.5% are rejected because metal residues accelerate thermo-oxidative degradation. Extruder melt temperature during compounding is held at 200–230°C to limit organoleptic by-products, and the melt filter pack should be 200–400 µm to retain talc agglomerates without generating excessive backpressure. Terminal parts include wheel arch liners, engine undercover trays, battery trays for ICE and hybrid platforms, and front valance stiffeners.
If a washing machine base frame is converted from glass-filled homopolymer to MOPLEN PP 5706P, the design must account for lower stiffness and higher impact tolerance at 23°C. The feed ratio is 95–100 wt% 5706P, 0.5–2.0 wt% nucleating masterbatch and 0.5–1.0 wt% colour concentrate; where fire safety is required, the part is tested under UL 94 HB and glow-wire ignition under IEC 60335-1:2020 clause 30.2. Mechanical acceptance uses ISO 527-2:2012 tensile yield, ISO 178:2019 flexural modulus and ISO 179-1:2010 Charpy notched impact at 23°C. Injection moulding on machines 700 kN to 1,200 kN uses melt temperature 220–250°C, mould temperature 30–50°C, and screw L/D 20:1 to 25:1; due to thick attachment bosses and snap-fit geometry, holding pressure must be raised gradually to prevent sink marks and excessive frozen-in stress that reduces creep resistance. The material is not recommended for sustained immersion in hot water above 60°C or in contact with strong oxidising agents because long-term oxidation embrittlement changes the part’s impact response. Terminal components are washing machine base frames, air-conditioner drain pans, dishwasher kick plates and upright vacuum cleaner structural brackets.
During high-speed rotary closure moulding, MOPLEN PP 5706P is used for linerless beverage caps and closure shells in cold-chain filling lines where cap damage at 0–4°C causes line stoppage. The formulation uses 100 parts 5706P with 0.05–0.15 wt% erucamide slip masterbatch and 0.05–0.10 wt% antioxidant masterbatch; organoleptic compliance is established under EU 10/2011 and FDA 21 CFR 177.1520, while closure functionality is evaluated by ASTM D3475-18 child-resistant closure testing when applicable. Moulding is performed on rotary compression or high-pressure injection machines with melt temperature 210–260°C and cap tool temperature 8–15°C to achieve fast crystallisation and low warpage; cycle times of 5–8 s are typical on continuous rotary compression lines with 64 to 96 cavities. Use above 25 wt% recycled PP in the food-contact closure is not recommended without migration testing because contaminant carry-over from the recycled stream can shift overall migration values. Terminal products are 28 mm PCO 1881 linerless beverage caps, dairy closures, and single-piece flip-top caps for condiments.
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Manufactured under the MOPLEN polypropylene platform, MOPLEN PP 5706P is classified as a low-flow homopolymer extrusion grade. The designation identifies a high-molecular-weight propylene homopolymer in which the melt mass-flow rate under ISO 1133-1:2022 at 230°C and 2.16 kg is reported as 0.60 g/10 min. Density under ISO 1183-1:2019 is reported as 0.900 g/cm³. These values place the resin outside the typical injection-molding window and inside the sheet, thermoforming, and blow-molding viscosity band. The base polymer is a propylene homopolymer with CAS registry number 9003-07-0, supplied as stabilized pellets for extrusion processes. The grade is not optimized for thin-wall injection molding, high-clarity random-copolymer packaging, or rubber-toughened cold-temperature impact applications.
Laboratory characterization of the resin is performed on dry-as-molded specimens and on melt samples conditioned according to ISO 1133-1:2022. The low melt mass-flow rate is not a nominal identity value alone; it is a consequence of high molecular weight and a broad molecular-weight distribution. A high zero-shear viscosity produces melt tension sufficient for large-part thermoforming, but it also reduces spiral-flow length under injection pressure. In extrusion, the shear-thinning character is observable as a steep pressure drop across the die land. The mechanical property envelope is typically measured under ISO 527-2 for tensile properties and ISO 178:2019 for flexural modulus. The material responds to stretching at room temperature with yielding rather than immediate brittle separation; elongation at yield is reported in the range of 12% to 14%. Charpy notched impact strength under ISO 179-1 at 23°C is approximately 5.0 kJ/m², which is characteristic of a homopolymer rather than a rubber-modified impact copolymer. Vicat softening temperature under ISO 306/A50 is reported near 155°C, and heat deflection temperature under ISO 75-2/B at 0.45 MPa is reported near 80°C.
| Property | Test method | Typical value | Unit |
|---|---|---|---|
| Melt mass-flow rate | ISO 1133-1:2022 | 0.60 | g/10 min |
| Density | ISO 1183-1:2019 | 0.900 | g/cm³ |
| Tensile stress at yield | ISO 527-2 | 25 | MPa |
| Tensile strain at yield | ISO 527-2 | 12 | % |
| Flexural modulus | ISO 178:2019 | 900 | MPa |
| Charpy notched impact strength, 23°C | ISO 179-1 | 5.0 | kJ/m² |
| Vicat softening temperature | ISO 306/A50 | 155 | °C |
| Heat deflection temperature, 0.45 MPa | ISO 75-2/B | 80 | °C |
Reported values are representative single-point values from supplier technical literature. Multi-lot capability data may vary around these figures, and they should not be treated as guaranteed minima without a certificate of analysis covering the specific production lot.
When compared with medium-flow injection-molding homopolymers having MFR values of 12 g/10 min to 25 g/10 min, the principal differences are not chemical but rheological. The 5706P grade enters the extrusion die with a lower melt index and higher elastic storage modulus. The practical consequence is that sheet produced from this resin can be stretched without immediate necking, whereas a high-flow homopolymer of the same density thins at the plug contact point and tears at lower draw ratios. The trade-off is throughput: on a single-screw extruder with a 30:1 L/D barrier screw, screw speed is often limited by motor amperage rather than melting capacity. A high-flow injection grade reaches the same mass output at lower head pressure, but cannot hold the same sag limit in a static oven thermoforming step. Published data for comparative high-temperature creep of this specific grade are limited.
Production-scale sheet extrusion is typically run on single-screw extruders with barrel length-to-diameter ratios between 25:1 and 30:1, using a barrier-flighted screw and a downstream three-roll stack. The melt temperature measured at the die entry should be held between 210°C and 240°C. Temperatures below 200°C produce visible melt fracture at the die lip and uneven calendering pressure; temperatures above 250°C shift the stabilizer consumption rate and reduce molecular weight through chain scission. The die gap is set from 0.5 mm to 1.0 mm wider than the target sheet gauge, depending on roll speed and draw resonance.
For plug-assisted thermoforming, sheet surface temperature is normally raised to 160°C to 170°C before forming. The high melt strength allows a draw ratio up to 1.5:1 in deep cavities without severe web thinning, provided plug speed and material distribution are controlled. In extrusion blow molding, the parison hang time before mold closing is longer than for a medium-flow resin; mold close speed must be interlocked with parison length rather than timer alone. These processing boundaries are derived from standard polypropylene sheet and blow-molding practice; not every parameter is published as grade-specific data.
Regrind loads up to 30 wt% are common in sheet extrusion when the flake is dried and filtered. The low MFR of the virgin resin compensates for the viscosity loss caused by repeated heat history; however, adding more than 30 wt% lower-viscosity regrind from general-purpose PP packaging can reduce melt tension and create web sag during thermoforming. The blended mix should be stabilized with the same antioxidant package. Titanium dioxide or other pigment concentrates should be introduced as a 2 wt% to 3 wt% masterbatch to avoid dispersion defects. Because the homopolymer is not hygroscopic, moisture content below 0.05 wt% is generally acceptable. If flake is stored in ambient conditions above 60% RH, surface moisture can generate splay, and dry-air pre-drying at 80°C for 1 h to 2 h is used.
Polypropylene homopolymers are thermally stable only within a defined processing envelope. When the melt stream is held above 250°C for longer than 10 min, chain scission dominates over chain extension, reducing the shear viscosity and the melt strength that define this grade. The degradation is not always visible as discoloration; surface pitting, specks, or a narrow molecular-weight shift can appear before yellowing. On sheet and blow-molding lines, the residence time distribution in the die is the critical variable. A long-adapter or multi-manifold die with dead spots may require lower melt temperatures, such as 215°C, to maintain a residence time below the degradation threshold.
Purge compounds containing amine-based additives should be avoided because they can interfere with the phenolic/phosphite stabilizer system. A purging polyolefin of similar melt index is preferred when moving from other materials. The operational boundary is therefore not defined by the barrel set point alone, but by the melt residence time and oxygen ingress at the hopper throat. Batch-to-batch variance in stabilizer consumption may shift the onset of pitting; processors should monitor melt-pressure stability and the appearance of the first formed sheet after each lot change.
The base polypropylene homopolymer falls under the U.S. Food and Drug Administration regulation 21 CFR 177.1520 for olefin polymers. Compliance with the resin listing does not automatically confer food-contact approval on a finished thermoformed or blow-molded article; the converter must evaluate migration limits under the end-use conditions specified in the regulation and any applicable food-type simulant. Under EU Regulation 10/2011 on plastic materials and articles intended to come into contact with food, the final article must demonstrate compliance with overall migration and specific migration limits for the additive package used. The product is supplied with a certificate of analysis for lot release, but that certificate is limited to melt-flow and density; it does not replace extraction testing.
Heavy metals and restricted substances are addressed through the EU RoHS Recast Directive 2011/65/EU. Unreinforced polypropylene homopolymer is not expected to contain cadmium, lead, mercury, or hexavalent chromium above the directive’s maximum concentration values, but the final article must be verified because colorants and processing aids can introduce trace metals. For pharmaceutical or medical packaging, ISO 10993-1 biocompatibility evaluation is article-specific and falls outside the resin datasheet.
| Regulatory area | Reference | Resin-level statement |
|---|---|---|
| US food contact | 21 CFR 177.1520 | Homopolymer olefin polymer listing; article extraction testing required |
| EU food contact | EU Regulation 10/2011 | Overall and specific migration compliance required on finished article |
| RoHS | 2011/65/EU | Restricted substance conformity depends on additive package |
| REACH | EC No 1907/2006 | Article 33 communication required for SVHC substances above 0.1 wt% |
The main grade-selection boundary is between homopolymer extrusion and random-copolymer clarity. Random copolymers based on ethylene reduce haze and lower seal initiation temperature, but they sacrifice stiffness and heat-deflection temperature. MOPLEN PP 5706P is not optimized for cold-temperature impact or high-clarity thin-wall packaging; its property envelope favors structural rigidity, melt strength, and thermoforming shape retention. It differs from impact copolymer grades in that it does not contain an ethylene-propylene rubber phase. The result is higher flexural modulus and lower notched impact. If the application requires a hinged lid, the homopolymer may require thinner hinge geometry or a more controlled cooling rate to avoid early flexural failure. For applications requiring low-temperature toughness, a separate impact copolymer evaluation is necessary.
