The global blow-molded plastics market grew from $89.39 billion in 2022 to $92.93 billion in 2023 at a compound annual growth rate (CAGR) of 4.0%. The blow-molded plastics market is expected to grow to $108.75 billion in 2027 at a CAGR of 4.0%, according to a report published in February by Reportlinker. The market consists of sales coveringcompound blowmolding and compression blowmolding.

Success stories at the seminar included the biodegradability of proprietary bioplastic material; biopolymer solutions for sustainable agriculture; and a method for measuring biodegradation in compost, fresh and waste waters, soil, and marine environments.

Asia-Pacific was the largest region in the blow-molded plastics market in 2021 and is expected to remain the largest through the forecast period.

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Polypropylene is used in a variety of applications, including plastic packaging, machinery and equipment parts, and fibers and textiles. Extrusion, injection, and stretch are the various technologies used in blowmolding plastics for packaging, consumables, electronics, automotive and transport, building and construction, medical, and other applications.

Producing hollow plastic products from thermoplastic materials is a quick manufacturing solution and offers versatile products with broad industrial appeal. Markets include food suppliers, medical and pharmaceutical companies, and others.

The new facility offers a full-service mold prototyping lab as well as a specialized mold sample and development machine, allowing customers to quickly move from concept through design, prototype, and full production.

A key attribute of the diamond-like carbon coatings is the ability to resist wear by lowering the friction between sliding surfaces. This largely eliminates the need for surface lubrication and post-finishing, which are deemed primary sources of pollutant releases to the atmosphere for certain industries such as pharmaceutical and food. The coatings are applied using a physical vapour deposition process called magnetron sputtering at temperatures as low as 180 °C. Due to this advanced deposition process, the diamond-like carbon coatings can maintain a very thin, uniform finish (1-5 μm) over the entire mould independently of its geometry. “cleanMOULD’s novel coatings optimise both surface hardness and lubricity to minimise the impact of fretting,” notes Hvam. The high hardness of the newly demonstrated diamond-like carbon coatings, which are 8 times harder compared to other coatings, allows the surfaces to become more resistant to scratches that occur during operation. It goes without saying that the absence of oil lubricants makes mould cleaning much easier: it only requires applying ethanol to a cloth for less than 10 minutes. cleanMOULD’s ‘mould breaking’ has the potential to become a key enabling technology for the entire plastics industry. Overall, the return on investment for cleanMOULD users is expected to be over 20 times the expected coating costs, thus providing a compelling value proposition. Pilot-test results demonstrated a sixfold decrease in the maintenance interval compared to state-of-the-art coatings. No fretting corrosion has been observed on any coated moulds. What’s more, “cleanMOULD’s coating demonstrated a decrease in the moulding cycle time of screw lids from 40 to 36 seconds, which is equivalent to an 11 % increase in productivity,” concludes Hvam.

A new low-friction, high-hardness coating is poised to expand the range of surface treatments to help tooling stand up to tough moulding challenges. The new diamond-like coating can increase the mould service life by up to 10 times compared to the state of the art.

In October 2021, Recycler EFS-plastics Inc., a Canada post-consumer plastics recycler with a focus on processing bales of low-value plastics, acquired Exi-Plast Custom Moulding for an undisclosed amount. Through this acquisition, EFS can directly manufacture finished products with high levels of post-consumer recycled plastic for its customers. Exi-Plast Custom Moulding is a Canadian company that provides custom plastic molding services, particularly in blow-molded solutions for designers, manufacturers, and distributors.

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Prolonging tooling service life is of paramount importance for any moulding project since downtime for repairs jeopardises profit margins. According to estimates, around EUR 10 billion are spent each year for maintenance operations worldwide. During the moulding process, the friction forces developed between the closing surface and those contacting the injected plastic largely account for the damage caused to the surfaces. Ultimately, the mould needs to be scrapped. Put together, these significantly affect the mould’s service life. The EU-funded cleanMOULD project demonstrated novel coatings based on a multilayer diamond-like carbon formulation that prolong the life of injection moulding tools, offering corrosion protection, reduced wear and resistance to friction. “Importantly, our novel coating solutions increase mould performance and extend its operation before the need to take it out of service for preventive maintenance,” reports project coordinator Michael Hvam.

Major types of blow-molded plastics are polypropylene, acrylonitrile butadiene styrene (ABS), polyethylene, polystyrene, polyvinyl chloride PVC, PET, and others. Polypropylene (also known as propane or propylene) is a tough, rigid, crystalline thermoplastic derived from the monomer propane or propylene.

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Companies are investing in research and development to produce new industrial plastics to keep up with market competitiveness and meet evolving end-user demands.

For the packaging sector, AIMPLAS presented results of projects that included biodegradable barrier packaging made from food waste, plastic film derived from coffee waste, active packaging that extends the shelf life of cheese and is made from cheese-industry waste, and cartridges for 3D food printing.

Telephones, PC parts, toys, electrical plugs, and other everyday products like shoes and pens are made with plastics using a process called injection moulding. The technology can produce identical parts at high volumes at a low cost per part. However, its start-up cost is relatively high, mainly because custom tooling is needed. An injection mould can cost anywhere between EUR 100 000 and EUR 300 000, depending on its complexity, material and accuracy.

For instance, in 2020, Comar, a US manufacturer and designer of innovative plastic solutions, announced locating a custom facility in Rancho Cucamonga, CA. The 230,000-square-foot facility is Current Good Manufacturing Practice regulation (cGMP)-compliant, ISO 13485-certified, and FDA-registered, with dedicated injection blowmolding, injection-stretch blowmolding, and injection-molding cells.