HMEL PP Polysure M18NH1
Polysure M18NH1 is a nucleated polypropylene homopolymer manufactured by HPCL-Mittal Energy Ltd (HMEL) via advanced Spheripol-II technology at Bathinda. Designed as the primary commercial grade for thin wall injection molding (TWIM), M18NH1 delivers a unique combination of high stiffness, dimensional stability, and fast cycle times. Nucleating agents ensure small spherulite size for excellent product aesthetics, lower warpage, and reduced energy consumption. The product is fully compliant with IS 10910 (food contact), IS 16738:2018, and FDA 21 CFR 177.1520, making it the ideal choice for Delhi NCR’s leading TWIM and household goods manufacturers.
Deep Technical Insights & Specifications
M18NH1 features a melt flow index of 18 g/10 min (ASTM D1238), flexural modulus of 1700 MPa (ASTM D790A), tensile strength of 35 MPa, Vicat softening point of 151°C, HDT of 110°C, and notched Izod impact of 35 J/m. This grade’s nucleated design enables low cycle times (6–10 seconds cooling), superior surface gloss, and tight tolerances. Processing is optimized at a barrel temperature of 180–250°C, mold temperature of 30–40°C, high injection speed for thin wall 0.8–1.5 mm, and back pressure of 10–20 bar. The result is rapid filling and demolding, minimal warpage, and outstanding stackability for packaging and household products.
Applications & Industry Use Cases
For thin wall injection molded containers, M18NH1 excels in yogurt cups, dairy pots, and food trays, supporting high-speed, multi-cavity production (16–32 cavity molds). Its high stiffness ensures containers retain shape and stack without deformation, while the nucleated finish delivers a glossy, attractive look. In household and consumer goods, M18NH1’s rigidity and dimensional stability make it ideal for kitchen storage containers, airtight organizers, furniture components, toys, and hangers—products that benefit from drop resistance and a premium surface feel. For food service and retail packaging, M18NH1’s food-contact compliance and rapid cycle times support efficient, safe, and sustainable mass production, with packaging that maintains integrity from factory to shelf.
Alternatives & Comparative Analysis
M18NH1 and M18NH are process variants with identical technical specifications, both delivering 18 MFI flow and 1700 MPa stiffness. M18NH1 is the primary commercial grade for TWIM, while M18NH is often referenced interchangeably. Compared to HMEL’s M20CR1, M18NH1 offers +6% higher stiffness, making it better suited for stackable, rigid packaging and household items, whereas M20CR1 is preferred for clarity and medical applications. IOCL Propel 1200MC, with 20 MFI and similar stiffness, is a viable alternative for TWIM, but lacks the proprietary nucleated design of M18NH1, resulting in slightly longer cycle times and less glossy finish. IOCL 010F18A matches the flow but has marginally lower stiffness. Overall, M18NH1 stands out for its unique nucleated structure, fast cycles, and premium finish, filling a gap where no direct 18 MFI nucleated competitor exists in India.
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FAQs
Frequently Asked Questions
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