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What’s the difference between polypropylene (PP) and polycarbonate (PC)?

Views: 637     Author: Site Editor     Publish Time: 2022-04-18      Origin: Site

What’s the difference between polypropylene (PP) and polycarbonate (PC)?


Before we begin the comparison, let me first tell you about this widely used material. It is a thermoplastic polymer made by chain growth polymerization. It is one of the most used plastic materials in the world today. With the increasing number of new plastic grades and materials, you can get easily confused while shopping for plastic materials. This is the reason we’re publishing these guides to help our readers understand which is what and make a better decision for themselves.



Impact resistance and strength

When it comes to impact resistance and strength, you already know that solid polycarbonate is the big winner. It is one of the strongest plastic materials available, providing superior strength and longest life. That’s why clear solid polycarbonate sheets and solid polycarbonate roofing sheets are so popular.


On the other hand, polypropylene is also a durable product. Has stronger impact resistance than other materials, although not as strong as PC plastics.




We all wish we had lighter products. One of the reasons why polycarbonate (hollow polycarbonate sheet) is widely used as an alternative to glass and metal is that it is lighter.


If we compare the weight of PC and PP material, PP is much lighter than PC material. This makes it a good choice for many applications, including luggage and suitcases.


89.clear polycarbonate roofing sheet 

Cutting performance

If you need plastic material for processing, you'll want to avoid polycarbonate plastic sheets. Because they have an optimal strength level, the PC material cannot be machined correctly. You should have good polycarbonate processing skills.


Manufacturers can use polypropylene for processing because it is easy to process and shape.



Applications of these materials

Polycarbonate and polypropylene both have a wide range of applications. However, PC materials are mostly used for heavy-duty uses. Such as greenhouses (greenhouse panels like 4mm polycarbonate greenhouse panels), roofing panels (clear polycarbonate roofing sheet), riot shields, protective walls, etc. because they don’t break and are high impact resistant while offering extremely well transparency and lightweight ability, polycarbonate can be used as an alternative for both metal and glass materials.


On the other hand, polypropylene offers a great deal of value too. You can’t use it for greenhouses, but that doesn’t eliminate the wide range of applications of this product. It was one of the most produced plastics in 2019, and the consumption of this material is going up every year.


PP plastic is mostly used for packaging, car and medical equipment, bags, disposable items, etc. Among those, this material is one of the best packaging materials. We use it every day from our bottle caps to shopping bags. Besides, other than polycarbonate and ABS luggage, polypropylene luggage is widely used too. The best thing about this is that it falls in the middle of the other two alternatives.



Hangzhou Saining Polycarbonate Sheet Co., Ltd. was founded in 1997, it is a manufacturer that specializes in producing various kinds of high-quality polycarbonate sheets (such as transparent polycarbonate sheet and flexible polycarbonate sheet).

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