What do plasticizers do?

Editor:Jinli Chemical │ Release Time:2023-11-15 

Hello, if you are not familiar with chemistry, it might be difficult for you to understand plasticizers. Plasticizers are chemicals used in the manufacturing and processing of plastics. Simply put, they are substances that make plastics more flexible. In more complex terms, they can alter the flexibility and durability of plastics, increase their elasticity and performance, without changing their chemical properties. They can improve the elastic modulus of the finished product, and using plasticizers can adjust the performance and meet requirements such as high tensile strength or material softening. Softening plastics also allows for better shaping.


Many people are unaware of the existence of plasticizer, and that's perfectly normal. Without plasticizers, plastics would not soften and would not be easily shaped, or they would become extremely rigid before shaping. Plasticizers are widely used. They can improve the processability and physical properties of plastics. Plasticizers interact with plastic molecules, altering the structure and properties of plastics to make them more suitable for processing and use. So, what are their specific functions?

  1. Increasing flexibility and extensibility: Plasticizers can improve the flexibility and extensibility of plastics, making them easier to bend and deform. This characteristic makes plastics more practical in various applications, such as flexible hoses, wire and cable insulation materials, and plastic packaging films.


2. Enhancing transparency and gloss: Certain plasticizers can enhance the transparency and gloss of plastics, making them more attractive and aesthetically pleasing. This is particularly important in the manufacturing of transparent plastic products, such as food packaging, optical devices, and display screens.

3. Adjusting hardness and toughness: By adding different types and concentrations of plasticizers, the hardness and toughness of plastics can be adjusted. This enables plastics to meet diverse requirements in various applications, such as manufacturing furniture, automotive components, and toys.

4. Improving weather resistance and heat resistance: Some plasticizers possess antioxidant and weather-resistant properties, which can enhance the durability and heat resistance of plastic products. This allows plastics to be used in indoor and outdoor environments, such as outdoor equipment, construction materials, and automotive components.

5. Reducing costs: Plasticizers can lower the cost of plastic products because they can partially replace expensive plastic raw materials. This makes plastic products more economical and widely applicable in various fields.

Plasticizers play a significant role in the plastics industry by improving the performance and processability of plastics. However, it is important to select and use plasticizers in accordance with relevant standards and regulations to ensure the safety and environmental friendliness of plastic products.