The main raw material for the production of plastic drums is polyethylene (PE), referred to as PE, which is a polymer organic compound formed by the addition of ethylene. Polyethylene is recognized as the best material for contact with food in the world. It is non-toxic, odorless and odorless, and meets the hygiene standards for food packaging. Polyethylene film, light and transparent, with moisture, oxygen, acid, alkali, air tightness, heat sealing and other properties, known as the "plastic flower", is the most used plastic packaging printing, the most important material.
Polyvinyl chloride is abbreviated as PVC, and its molecular formula is (CH2-CH2CL)n. It is the most important type of vinyl polymer. It is the second largest plastics in the world after polyethylene. The domestic production is in plastics. It is in the first place. In the printing industry, polyvinyl chloride color calendered film and transparent glazing film are often used to make packaging and decoration of books, folders, tickets and the like.
Shrink film is a thermoplastic film that is stretched and oriented during the production process and shrinks during hot air treatment or infrared irradiation during use. After heat treatment, the film is tightly wrapped around the package, and the shrinkage force reaches a maximum during the cooling phase and can be stored for a long time.
Low-density polyethylene, referred to as LDPE, is the largest variety in the plastic packaging and printing industry in various countries. The specific gravity is 0.92~0.93, which can float in water. Low crystallinity (60%), bulk polymerization at a pressure of 1000-3000kg/cm2, so it is also called high-pressure polyethylene. At 23 ° C, the density is around 0.92. The calendering formability is poor, and it is suitable for processing into a tubular film by a blow molding method. Applicable to food packaging, fiber packaging, and daily chemical packaging. Degradable plastic bag logo
High density polyethylene, referred to as HDPE. The density is from 0.941 to 0.965 g/cm 3 . It is made of low pressure polymerization, so it is also called low pressure polyethylene. It is milky white, indicating poor gloss. The processed film can be blow molded and T-die extruded. Heat-resistant and resistant to cooking, cold and cold resistant, moisture-proof, gas-proof, good insulation performance, and not easy to break, the strength is twice that of LDPE. Very easy to open. It has strong paper-like properties and is known as “paper-like plastic film”.
Biaxially stretched polypropylene film, also known as biaxially oriented polypropylene film, the English abbreviation code BOPP, which is characterized by tensile molecular orientation, mechanical strength, folded strength, gas density, moisture barrier resistance is superior to ordinary plastic film. The unit price is lower than that of cellophane compared to cellophane. Because of the excellent transparency of the film, the color reproduction after printing is particularly bright and beautiful, and is an important substrate for plastic composite flexible packaging.
Scope of application:
Plastic packaging drums are mostly used for the storage and transportation of various liquids. They have good characteristics for special dangerous goods. They are not brittle, rust-free, light, and not easy to deform. They are also excellent in oil resistance and corrosion resistance. It is used for the packaging of dangerous goods that need to be insulated, moisture-proof, pressure-resistant and corrosion-resistant. It is mainly used to hold liquid and solid articles in chemical raw materials, pesticides, lubricants, coatings, medicine, food, hardware electronics, electromechanical and other industries. Specifications range from 100mL to 200L.