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[Chemical Knowledge]：What are plasticizers and why are they widely used?

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With the advancement of science and technology and the improvement of production technology, plastic products are increasingly used in all walks of life, from furniture, daily necessities to automobiles, electronic products and other fields. The performance requirements of these plastic products are getting higher and higher. In addition to the basic requirements such as appearance and size, the requirements for their physical, chemical properties and processing properties are also increasingly stringent. At this time, the plasticizer has become an essential processing aid.

so-called plasticizer, refers to a kind of added to the plastic can increase its flexibility, impact resistance and processability of chemical additives, it can improve the structure of the plastic molecular chain, increase the distance between its molecules, making the plastic molecular chain movement more easily, so that the plastic becomes a more flexible, easier to process materials.

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plasticizers At present, there are many types of plasticizers, mainly the following:

1. Aliphatic plasticizers: such as monocyclohexyl ester, dicyclohexyl ester, etc., its advantage is no odor, low processing temperature requirements, but easy to decompose at high temperature.

2. Aromatic plasticizers: such as phthalic acid esters, benzoic acid esters, styrene acid esters, etc. Its advantages are good plasticizing effect, high temperature resistance, but high price, easy to decompose at low temperature.

3. Epoxy compound plasticizer: such as epoxidized ester, epoxidized oil, etc., its advantage is to increase the effect of good, high temperature resistance, wear resistance, but the price is higher.

4. Inorganic plasticizers: such as sodium ruthenium, potassium ruthenium, etc., its advantage is good stability, heat resistance, but the price is expensive.

the role of plasticizers

the role of plasticizers on plastics is mainly divided into the following two aspects:

1. Change the molecular structure of plastics: by increasing the spacing of plastic molecules, the mutual movement between molecular chains is easier, thereby increasing the flexibility and processability of plastics.

2. Promote the combination of plastic molecules: by increasing the binding force between molecules, increase the impact resistance and durability of plastics.

plasticizer application field

At present, plasticizer has become a variety of plastic products essential ingredients. It is widely used in the following fields:

1. Furniture manufacturing: Plasticizers can make furniture such as tables and chairs softer and more comfortable.

2. Building materials: Plasticizer can make PVC plastic more durable, suitable for the production of pipes, floors and wall panels and other building materials.

3. Electronic and electrical appliances: Plasticizers can increase flexibility, wear resistance and corrosion resistance for plastic products, suitable for cables, plugs, buttons and other electronic and electrical products.

4. Automobile manufacturing: Plasticizers can increase toughness, heat resistance and cold resistance for automotive plastic parts, and are suitable for automotive interiors, automotive lighting and other automotive accessories.

plasticizer is a widely used chemical substance. Its function is not only to increase the flexibility and impact resistance of plastics, but also to improve its processability and durability. In our lives, whether it is daily household goods or plastic products in the industrial field, there are plasticizers, which provide more convenience for our life and work.