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3D Printing Could Give Plastics a More Sustainable Future

Researchers at Arizona State University are exploring how advanced printing methods can reduce plastic waste and create durable materials for demanding applications

Tempe, Arizona, 29 October 2026 – Plastic is used in almost every part of modern life, from cars and computers to furniture, aircraft, and medical equipment. However, the amount of plastic produced worldwide continues to create a major waste management challenge. According to Arizona State University (ASU), more than 660 billion pounds of polymers are produced annually, while only around 10 percent of these materials are recycled in the United States.

Researchers at ASU are exploring how 3D printing and advanced material design could help reduce this environmental burden. Led by Tim Long, a professor in the university’s School of Molecular Sciences and director of the Biodesign Center for Sustainable Macromolecular Materials and Manufacturing, the research focuses on producing materials that use fewer resources while meeting demanding performance requirements.

One promising approach involves changing how plastic products are designed. Instead of manufacturing solid objects, researchers can use 3D printing to create lightweight structures with carefully arranged patterns, including lattices and foam like designs. These structures can provide strength and useful properties while requiring less material than conventional solid components.

Traditional manufacturing often involves cutting material away from a larger block to create a finished product. This process can generate significant amounts of scrap. Additive manufacturing, commonly known as 3D printing, takes a different approach by building objects layer by layer or placing material precisely where it is needed. This can reduce manufacturing waste and offer greater freedom in product design.

The ASU team is also advancing light based 3D printing, a process that uses light to shape specially designed polymers into complex structures. Researchers at the university are investigating how this technique can operate at elevated temperatures, potentially expanding the range of materials and components that can be produced.

The research extends beyond everyday consumer products. One important application is satellite manufacturing. As the number of satellites in low Earth orbit increases, researchers are examining what happens when these spacecraft reach the end of their useful lives. Plastics and other materials can produce particles or chemical compounds during atmospheric reentry, raising questions about their environmental impact.

To address these concerns, the team is exploring high performance polymers, including polyimides, that can withstand extreme temperatures and demanding conditions. The aim is to develop materials that are durable enough for space applications while considering their environmental consequences.

The researchers are also investigating flame resistant materials for ships and other environments where fire safety is essential. In collaboration with industry and research partners, they are exploring ways to reduce toxic emissions when materials burn. Other projects examine the use of plant derived oils to develop advanced plastics for applications such as semiconductor manufacturing.

Microplastics are another important area of study. The team is developing methods to understand how these tiny particles form and behave, while exploring materials that may produce fewer microplastics over time.

Although 3D printing alone cannot solve the global plastic waste problem, it offers a way to rethink material use, manufacturing efficiency, and product design. By combining sustainable materials research with advanced manufacturing, ASU researchers are working toward plastics that deliver high performance with a smaller environmental footprint.