25-liter plastic bucket performance trends

25-liter plastic bucket performance trends

A large number of foreign development of multi-functional composite film to further refine its role. For example: cold-resistant film can withstand low temperature environment of -18 ℃, -20 ℃, -35 ℃; moisture-proof film made of moisture-proof treatment of PP, its series of products can be divided into moisture-proof, anti-condensation, anti-steam cooling, adjustable moisture Several types; anti-corrosion film can pack perishable food with high acidity and sweetness; the friction film stack is stable; special PE film is chemical and corrosion-resistant; anti-mothproof film is added with non-odorous insecticide; Nylon 66 heat-resistant film replaces biaxially stretched nylon 6 packaged food, and its high temperature resistance is up to 140 ℃; new special food packaging film can improve the aroma retention of food packaging; non-crystalline nylon film transparency is similar to glass; high shielding film can protect Color, fragrance, taste, nutritional indicators and stability of taste quality; metal protective film is packaged with LDPE modified film liquid products, which can be heat-sealed under low temperature environment; PP synthetic paper is used to improve the light resistance, cold resistance and resistance of the package Heat resistance, water resistance, moisture resistance, grease resistance, acid resistance, alkali resistance and impact resistance.

Currently popular foreign plastic cups, composite cups (outer PSP, inner PP, lid PS) package cold and hot drinks, wine, instant food.

Judging from the current development speed of the world's plastics industry, Germany and Sweden take the first place, followed by Japan and some European countries, and the United States is slower. Foreign plastic packaging presents the following development trends:

Copolymer composite packaging film

At present, some European and American countries have invested heavily in the development of non-polar and polar ethylene copolymers, which will greatly improve the tensile and co-extrusion properties of the plastic film, and improve transparency, seal strength, stress resistance, crack resistance, and enhanced stability 、 Improve molecular weight cloth and extrusion rheological properties.

Foreign experts believe that the current development focus of the world's plastics industry is on plastic modification, coating technology of plastic products, rapid biodegradation of waste plastics, and comprehensive technology of plastic recycling. For example, some manufacturers in Europe and America adopt linear ethylene-α-olefin copolymer and ethylene-vinyl acetate copolymer mixture / PA bags, which are suitable for packaging ice cream, cream and other foods.

The development direction of plastics can be summarized in two aspects. One is to improve performance, that is, to modify existing varieties in various ways. The comprehensive performance is improved; the second is the development of functions, that is, the development of polymer materials with physical functions such as light, electricity, and magnetism, so that plastics can have photoelectric effect, thermoelectric effect, piezoelectric effect and so on.