PET Resin High-Density Polyethylene Resin for Packaging

Pet is an opalescent or light yellow highly crystalline polymer with smooth and glossy surface. It has good creep resistance, fatigue resistance, wear resistance and dimensional stability, small wear and high hardness. It has the largest toughness in thermoplastic plastics: good electrical insulation performance, little influence by temperature, but poor corona resistance. It is non-toxic, weather resistant, chemical resistant, stable, low water absorption, weak acid and organic solvent resistance, but not resistant to hot water immersion and alkali.

PET resin has high glass transition temperature, slow crystallization rate, long molding cycle, large molding shrinkage, poor dimensional stability, brittle molding and low heat resistance.

Characteristics

Mechanical properties: It has good tensile strength, rigidity and hardness, which can keep the packaging container in a stable shape and not easy to deform. At the same time, it also has a certain toughness, is not easy to break, and can withstand a certain degree of impact and extrusion.

Barrier properties: It has good barrier properties to oxygen, water vapor, etc., which can effectively prevent the items in the package from getting damp and oxidized, and extend the shelf life of the product. For example, when used to package beverages, it can prevent oxygen from entering the bottle and prevent the beverage from spoiling.

Transparency: PET resin has high transparency, and the packaging container made of it can clearly display the contents, has good visual effects, and can attract consumers' attention.

Chemical stability: It has good chemical stability, is not easily corroded by most chemical substances, and can adapt to the packaging needs of many different types of products, including some foods or medicines with certain corrosiveness.

Application

Beverage packaging: It is the main raw material for beverage bottles, such as mineral water bottles, carbonated beverage bottles, etc. Its high transparency and good barrier properties can well preserve the quality and taste of beverages, and at the same time facilitate consumers to observe the appearance of beverages.

Food packaging: It can be made into various food packaging containers, such as packaging boxes and bottles for fruits, vegetables, meat, etc. It can effectively block the outside air and moisture to maintain the freshness and taste of food.

Medical packaging: It is used for the packaging of medicines, such as medicine bottles and medicine boxes. Its chemical stability and barrier properties can ensure that the medicines are not affected by external factors during storage and transportation, and ensure the quality and safety of the medicines.

High-density polyethylene (HDPE) resin

Characteristics

Chemical corrosion resistance: It has excellent chemical corrosion resistance and can resist the erosion of various chemical substances such as acids, alkalis, and salts. It is suitable for packaging various chemically corrosive products.

Water resistance: It does not absorb water and has good barrier properties to water. It can effectively prevent the items in the package from getting damp, and even in a humid environment, it can maintain the integrity of the package and the quality of the contents.

High strength: It has a high density and crystallinity, so it has high strength and rigidity, can withstand large weight and pressure, and is suitable for making large packaging containers or packaging that needs to withstand a certain amount of pressure.

Processing performance: good processing performance, easy to extrude, blow mold, injection mold and other molding processes, can be made into packaging containers of various shapes and sizes to meet the packaging needs of different products.

Application

Plastic film: widely used in the production of agricultural film, packaging film, etc. Agricultural film is used to cover crops, which plays a role in heat preservation, moisture retention, and insect prevention; packaging film is used to package various products, such as the outer packaging of daily necessities and food, and has good moisture and dustproof properties.

Plastic container: commonly used to manufacture various plastic barrels, plastic boxes, plastic bottles and other packaging containers. Such as packaging barrels of chemical products, packaging bottles of edible oil, etc., with their high strength and chemical corrosion resistance, can safely store and transport various liquid and solid products.

Pipe: can be made into various pipes for conveying fluids such as water and gas. Its corrosion resistance and water resistance make it not easy to be damaged during long-term use, and it has a long service life.

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