Thermoplastics are a class of polymers with unique properties that have made them indispensable in various industries that use plastic molding, including automotive, aerospace, packaging, construction, electronics, and healthcare. Here are some answers to frequently asked questions about thermoplastics.

A Guide to Thermoplastics

What are thermoplastics and how are they different from normal plastics? 

Thermoplastics are a class of polymers that have the unique ability to soften when heated and solidify when cooled, while retaining their molecular structure. This characteristic sets them apart from normal plastics, known as thermosetting plastics, which undergo an irreversible chemical change when heated and become rigid.

How are they made?

Thermoplastics are manufactured through a process called polymerization. Small molecules called monomers are chemically bonded together to form long chains known as polymers. These polymers can then be shaped into various forms, such as pellets, sheets, or fibers, using techniques like extrusion or plastic molding.

What are the benefits?

Thermoplastics offer numerous advantages, making them highly valuable in many industries. They are versatile because they can go through the plastic molding and shaping process repeatedly without significant degradation, allowing for easy customization and the creation of complex designs. 

That also makes them highly recyclable and environmentally friendly. They also have a low density, making them ideal for applications where weight reduction is crucial, such as in automotive and aerospace industries.

What are the limitations?

While thermoplastics have numerous benefits, they also have some limitations. Compared to thermosetting plastics, thermoplastics generally have lower heat resistance, limiting their use in high-temperature applications. 

Additionally, some thermoplastics can degrade when exposed to prolonged sunlight or UV radiation, so they require the addition of UV stabilizers or coatings. Although some thermoplastics have good strength properties, they may not match the strength of metals or certain composite materials.

For reliable and efficient plastic injection molding services, count on Pacific Integrated Manufacturing. Based in Bonita, CA, they have offered quality and cost-effective solutions for over 20 years. Their 50,000-square-foot manufacturing plant boasts state-of-the-art rooms, including inspection and testing for plastic molding. These technicians provide complete contract manufacturing services, including assembly kitting, packaging, material procurement, thermoplastics, and sterilization management. Call (619) 921-3464 for a free quote, and learn more about their services online.