Environmental protection is everywhere in the city.Plastic barrelAfter long-term use, plastic barrels will inevitably show some aging phenomena, and deformation of the barrel body will seriously affect its normal use. So what should be done if the plastic barrel is deformed?

　　One of the main reasons for the deformation of the plastic barrel body is that the thickness of the barrel wall is different in various places. During the production and development of plastic barrels, due to the limited technical capabilities of some manufacturers, the produced plastic barrels will have varying thicknesses, which will lead to deformation of the barrel body after long-term use.

　　In fact, to preventPlastic barreldeformation, more attention should be paid during the production process, especially to the strict requirements for barrel molds, so that the production of plastic barrels achieves uniform thickness. It is also important to pay attention to temperature; excessively high production temperatures can cause deformation, while excessively low temperatures can lead to brittle cracks, so temperature control is also very important.

　　How to restore the deformation of plastic barrels

　　Deformation caused by contact with hot waterPlastic barrelis a common situation. If the deformation is not severe, try using a blower to blow hot air onto the deformed part. Once the deformed part becomes soft, tools can be used to press it back to its original shape as much as possible, and then pour some cold water on it to harden it again. However, it is important to note that the hot air should not be blown too soft, otherwise the repair will not be good and may worsen the deformation.

　　Why do plastic barrels deform when exposed to hot water?

　　This is because materials and components like plastic are not heat-resistant. The molecular chains will change when stretched in high-temperature hot water, causing the plastic barrel to deform. The main component of plastic is a polymer aggregate. One characteristic of polymers is that there is a temperature above which the molecules (or some molecules) can move freely. When the temperature of the hot water exceeds this temperature, the plastic barrel will deform, so somePlastic barrelwill deform after coming into contact with hot water.

　　Plastic barrelIs it toxic to use?

　　Plastic barrels are mainly made of polypropylene (PP), which is polymerized from propylene. It has good heat resistance and high stability.Plastic barrelIt is not only used for food safety packaging and utensils in China but is also widely used in textiles, toys, and pharmaceuticals, even leading to some countries producing coins from polypropylene materials.

　　However, the safety of polypropylene is conditional. Although polypropylene has good heat resistance and can withstand temperatures above 100°C and microwave heating, the boiling point of grease is higher, around 200°C. Therefore, polypropylene is not suitable for holding hot oil.

　　In addition, it should be noted that polypropylene is prone to degradation, losing its original transparency, turning yellow, fading, and even completely turning into powder. Aging polypropylene is naturally no longer safe, so attention should be paid to the lifespan of plastic utensils in daily life.