Cracking the "Strength and Carbon Reduction" Dilemma in the Packaging Industry with Thin-Wall Injection Molding PP Materials
The world's first bio-based thin-wall injection-molded polypropylene material has achieved a groundbreaking wall thickness reduction to 0.12 mm while maintaining a flexural strength of 17 MPa. Compared to traditional PP materials, it reduces weight by 38% and enables 100% physical recycling alongside biodegradability, marking a milestone breakthrough for China in the field of green packaging materials.
1. Technological Disruption: 0.12mm wall thickness bearing 20kg dynamic impact
Traditional thin-wall injection molding PP materials show stress cracking at thicknesses below 0.3 millimeters. EcoThin-PP 900, through the technology of "nano-crystal induction + melt elasticity control," introduces plant cellulose nanowhiskers during the polymerization stage, increasing the material's crystallinity to 65%, with an impact strength of 58 kJ/m². Tests by SGS show that a 0.12-millimeter-thick food container remains deformation-free after 300 cold-hot cycles between -18°C and 121°C. In vertical load testing, it can withstand a dynamic load of 20 kilograms. The performance matches that of PS materials but achieves a 40% reduction in thickness.
02. Low-carbon Revolution: Bio-based Content Reaches 51%
The material is based on bio-based propylene extracted from liquefied straw, with a carbon footprint 72% lower than that of petroleum-based PP. Each ton of the product reduces CO2 emissions by 2.3 tons. The proprietary "closed-loop recycling system" can maintain 92% of its original performance even after the packaging is crushed and regranulated three times. Developed in conjunction with Dow Chemical, the enzymatic process can achieve compost degradation within six months.
03, Scenario Breakthrough: From Fresh Cold Chain to 3C Protection
Food Packaging: Mengniu Group tested this material to produce 0.15 mm yogurt cups, with sterilization temperature tolerance increased from 95°C to 135°C, and production line energy consumption reduced by 25%.
In the daily chemical field: The packaging thickness of Blue Moon laundry pods has been reduced to 0.18 millimeters, the puncture strength has increased threefold, and the transportation damage rate has been reduced to zero.
Electronics: The tray of Huawei Pura 80 mobile phone adopts a 0.2mm thin-wall design, with electromagnetic shielding effectiveness reaching 65dB, and the weight is reduced by 50%.

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