Polypropylene is a type of thermoplastic polymer resin.The combining of propylene monomers yields polypropylene (PP), a thermoplastic "addition polymer." Consumer items packaging, plastic parts for many sectors, and unusual gadgets like live hinges are all examples of uses for this material. The main benefits of polypropylene are also the main reason why manufacturers in a plethora of industries prefer it to other types of plastic. 

Given that polypropylene resembles polyethylene in appearance, it may take some time to identify it. It is made of a tough, white substance that is very chemical resistant. Polypropylene is stronger and more heat resistant than polyethylene. Polypropylene emits an unpleasant odor when exposed to flame. It will continue to burn, drip, and have a faintly sweet smell after being taken away from a flame.

Packaging

In its flexible form, polypropylene tends to replace cellophane, metals and paper due to its superior properties and lower price. As film and flexible packaging, you will find polypropylene film in Food and Confectioneries, Tobacco and Clothing.

As rigid packaging, you will find polypropylene in sectors such as caps and closures to pallets, crates, bottles, Just-in-Time (JIT) storage solutions, bottles and jars for packaging (condiments, detergent and toiletries), thin-wall containers (yogurt cups, disposable hot drinks cups etc.).

Medical Applications

Due to its high level of microbiological and chemical resistance, polypropylene is utilized in many medicinal applications. Many different pieces of equipment, instruments, and containers used in medical labs are made of polypropylene. It is probably best recognized in the medical community as the synthetic, non-absorbable suture Prolene, which is utilized by surgeons in prolapse repair procedures. Surgeons use it in prolapse repair operations as well. The most widespread use of polypropylene in medicine is in disposable syringes. Medical vials, diagnostic tools, Petri dishes, intravenous bottles, specimen bottles, food trays, pans, pill containers, and more are examples of other uses.

Automotive Industry

Polypropylene is frequently used in automotive parts due to its inexpensive cost, exceptional mechanical characteristics, and moldability. Bumpers, fender liners, interior trim, instrument panels, and door trims are a few common applications. Low linear thermal expansion coefficient, low specific gravity, excellent chemical resistance, processability, and balance between stiffness and impact resistance are further significant characteristics of PP used in automotive applications.