Finding the best adhesive for polypropylene can be challenging due to its low surface energy, which makes it inherently difficult for adhesives to bond with. However, cyanoacrylate-based adhesives, also known as super glues, and certain specialized formulations such as 3M's Scotch-Weld Structural Plastic Adhesive DP8005 have been proven effective. These adhesives do not require surface treatment like priming or etching, making them convenient options. DP8005, in particular, is designed for bonding polypropylene and other low surface energy plastics, offering strong, durable bonds suitable for various applications including industrial and household repairs. It's important to follow the manufacturer's instructions for the best results.

The price of polypropylene per pound can fluctuate based on various factors like crude oil prices, supply and demand dynamics, and geopolitical situations. As of my last update in 2023, the price range for polypropylene typically falls between $0.50 to $0.70 per pound in the global market. However, these figures can vary significantly depending on the region, quality of the resin, and the volume of the purchase. It's essential for buyers to stay informed about market trends and consider long-term contracts to mitigate the impact of price volatility. Companies should also explore recycling and sustainable sourcing options to potentially reduce costs and contribute to environmental sustainability.

Titanium dioxide TiO2 has low solubility in water and other common solvents. Instead of attempting to dissolve it. a suspension may be a more suitable option. This involves dispersing particles in a liquid without dissolving them. To create such a suspension. one could mix titanium dioxide with water. Additionally. the use of a dispersant or surfactant such as soap can aid in achieving proper dispersion. When working with nanoparticles. it is crucial to note that they have a larger surface area and may result in a more stable suspension in water.