During the processing, storage, and application of POF shrink film, under the action of light, heat, and oxygen, aging phenomena such as fading, embrittlement, and cracking will occur. How can POF packaging film manufacturers prevent aging?
Let’s take a look at it! POF packaging film is necessary to participate in stabilizers to delay and prevent aging. The first used to prevent thermal aging is called a heat stabilizer. The first used to prevent oxidative aging is called antioxidants. The first to prevent light aging is called light stabilizers, and they are collectively called stabilizers. Because of its high safety, it is especially used for food packaging and high-definition rigid polyethylene products. It is also widely used in plastic doors and windows, water pipes, and decorative materials to replace other highly toxic plastic heat. stabilizer.
POF shrink film is a white powder with an amorphous structure. The degree of branching is relatively small. The relative density is about 1.4. The glass transition temperature is 77 ~ 90 ℃. The initial decomposition is about 170 ℃. The stability to light and heat is poor. After prolonged sunlight exposure, it will decompose to produce hydrogen chloride, and further actively catalyze the decomposition, causing discoloration, and the physical and mechanical functions are also sensitively reduced. In actual use, it is necessary to participate in stabilizers to advance the stability to heat and light. POF packaging film is widely used. It is widely used in construction materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foam materials, sealing materials, fibers, etc.