Difference between PE and PP vacuum bags
With the continuous development of Commerce, the application of vacuum packaging bag is more and more widely. Vacuum bag has a strong preservation effect, especially for food. The material of vacuum bag is generally divided into PP and PE, what is the difference between them? Let's introduce it to you:
1、 Different uses
Polyethylene (PE) is widely used in the manufacture of vacuum bags, plastic films, milk barrels and other products. Polypropylene (nylon) is widely used in industry. Third, the most rare polymer material is used to make various adhesive tapes, which has made great contributions to the food, beverage and other soft packaging industries.
2、 The chemical structure is different
Polyethylene is polyethylene, first of all. A simple polymer containing o, a repeating CH2 unit, which is the addition of ethylene. PP refers to semi crystalline thermoplastic.
3、 Its characteristics are different
Polyethylene is odorless, nontoxic, and feels like wax. Second, it has good low temperature resistance. The lowest temperature of PE vacuum bag can reach 70 ~ 100 ℃. Polyethylene has good chemical stability, can withstand most acid and alkali corrosion, is insoluble in ordinary solvents at room temperature, has small water absorption, good electrical insulation performance, but poor heat resistance. Polypropylene has high impact resistance, strong mechanical properties, and resistance to various organic solvents and acid-base corrosion.
Dongguan Beite packaging materials Co., Ltd. is a large-scale company specializing in the production of food grade composite packaging. It is a professional manufacturer of composite packaging bags. It uses new equipment to produce packaging bags and roll films, providing comprehensive, environmental protection and safety packaging services for the market. The company produces composite bags, roll film, fruit bags, aluminum foil bags, suction mouth bags, self-supporting bags, zipper bags, anti-static bags, special-shaped bags, etc., which are suitable for the internal and external packaging of food, daily chemicals, electronics, toys, medicine, cosmetics, industrial products and other industries. We uphold the integrity of cooperation, good quality, good service business philosophy, won the industry's approval, products sold to all over the world; welcome friends from all walks of life to inquire, visit our factory to investigate guidance and business negotiations.
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