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What is PP Used For? PP Examples and 3 Recycling Solutions
What is polypropylene used for? Polypropylene (PP), as a semi-crystalline thermoplastic, has high hardness, rigidity, and tensile strength. Therefore, PP covers a wide range of reusable items, which makes it the second most widely used polymer in the world. Some common polypropylene plastic examples are films, conteiners, automotive parts and many other consumer products.
However, due to the huge consumption of PP plastics and, the lack of infrastructure, incorrect dumping techniques, and mismanagement, the environment is being polluted. This article aims to guide you in knowing more about PP plastic and the recycling solutions for its applications.
What is Polypropylene (PP) Plastic Used for?
What is polypropylene used for? Aside from the inherent properties of a thermoplastic, PP also excels at chemical resistance. Due to its relatively lower density, it’s also light-weighted. Moreover, compared to other plastics, PP is relatively cheap. Combining these advantages, PP plastics are widely manufactured into different products by methods including extrusion, injection molding, thermoforming, and blow molding. Below are some common polypropylene plastic examples:
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- Solutions for your plastic waste - Application page
| Properties | PP |
| Density | 0.895~0.92 g/cm3 |
| Melting point | 167~177℃ |
| Appearance | Less transparent with haze |
| Advantages |
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Is PP Recyclable?
Absolutely. As a thermoplastic, PP can be repeatedly heated, reshaped, and cooled without degradation, making it one of the most readily recyclable polymers. In this article, you will learn more about PP plastics and suitable solutions for recycling different PP products and applications.
Recycling Solutions for PP Plastics
To deal with a certain amount of production waste and save more costs, we suggest investing in simple yet reliable plastic pelletizing machines to obtain reusable recycled pellets.
Since PP products can come in the form of soft and rigid plastics, with common polypropylene plastic examples including films, containers, automotive parts, and many other consumer goods, we provide different solutions to achieve the highest performance in recycling these various PP applications.
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Repro-Flex
The Cutter Compactor Plastic Pelletizing Machine excels in reprocessing PE/PP films and bags without the need for pre-crushing. The cutter compactor ensures efficient cutting and consistent feeding to the extruder. Repro-Flex also performs admirably in recycling injection molding waste, provided the waste is pre-crushed into 1-inch pieces.
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Repro-One
The Shredder Integrated Plastic Pelletizing Machine is specially designed for processing challenging materials like PP raffia, woven bags, non-woven fabrics, lumps, and more. While it's perfectly suited for recycling rigid PP hard plastics, its versatile single-shaft shredder also simplifies the processing of PP films.
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Repro-Direct
The Hopper Feeding Plastic Pelletizing Machine features a screw-feeding system designed for handling PP regrinds and flakes. These pre-crushed PP materials are fed directly into the extruder, where they undergo degassing and filtration processes for PP recycling.
Conclusion
Polypropylene is extensively employed as a chemical barrier and protective element in a wide range of applications. What is polypropylene used for? With its high consumption rate, the demand for recycling PP is on the rise. Using recycled PP is not only environmentally beneficial but also advantageous for your business, as it reduces waste and enables the production of new items using sustainable materials.
POLYSTAR provides several solutions to recycle PP soft packaging and rigid items. To learn more about these products, please check out here.
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About the Author
Janine Cheng
Marketing AssistantJanine creates engaging content for POLYSTAR’s social media presence, including keeping social media channels updated and brand-focused and seeking ways of connecting with plastic producers and recyclers.