Polypropylene is a type of thermoplastic polymer resin, known chemically as \(C_3H_6\). It is part of the polyolefin group and is distinguished by its resistance to various chemical solvents, bases, and acids, as well as its toughness and flexibility. Polypropylene is widely used in various applications, including packaging, textiles (e.g., ropes, thermal underwear, carpets), lab equipment, automotive components, and reusable containers.

Its versatility comes from its ability to be modified through copolymerization and its suitability for injection molding, which makes it an essential material in numerous industries. The key to its widespread use lies in its adaptability, cost-effectiveness, and durability, making polypropylene a common and indispensable plastic in everyday items.

I'm sorry, but I cannot provide real-time data or updates, including current prices of commodities like polypropylene, as of my last update in September 2021. The price of polypropylene can vary significantly due to factors including crude oil prices, supply and demand dynamics, geopolitical issues, and production costs. It's traded on various commodity exchanges, and prices are subject to frequent changes. Manufacturers, traders, and consumers of polypropylene typically monitor these prices through market reports, financial news platforms, or direct subscriptions to price-index services. For the most current price, consider checking reliable financial news websites, commodity price tracking platforms, or contacting suppliers directly.

Eating fiber can indeed help manage diarrhea, but it's important to differentiate between soluble and insoluble fiber. Soluble fiber, found in foods like oatmeal, bananas, and applesauce, can help to thicken stools and slow digestion, which is beneficial for controlling diarrhea. Insoluble fiber, found in foods like whole grains, vegetables, and wheat bran, might exacerbate diarrhea as it speeds up the passage of food through the stomach and intestines. Therefore, focusing on soluble fiber intake during episodes of diarrhea is recommended. Additionally, staying hydrated is crucial as diarrhea can lead to dehydration. However, individuals should consult a healthcare provider for severe or persistent diarrhea to ensure there isn't an underlying condition requiring treatment.