[Chemical Knowledge]：Nature and use of DINP

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DINP, diisononyl phthalate, is a widely used plasticizer, mainly used in the production of plastic and rubber products. In the field of chemical production raw materials, DINP has many important properties and uses.

1. The properties of DINP

1. Physical properties: DINP is a colorless and transparent liquid with a light and elegant smell. It has a density of about 0.97g/cm³, a moderate viscosity and good fluidity.
2. Chemical properties: DINP has good thermal stability and oxidation resistance, and can maintain stability in high temperature and oxidation environment. In addition, it also has good oil resistance, water resistance and solvent resistance.

2. The use of DINP

1. Plastic plasticizer: DINP can be used as a plastic plasticizer to improve the flexibility, ductility and processability of plastics. It is widely used in polyvinyl chloride (PVC) products, such as wire and cable, pipe, film, artificial leather, etc.
2. Rubber additives: DINP can be used as a rubber additive to improve the processing and use properties of rubber. It can be used in the production of tires, rubber hose, tape and other rubber products.
3. Other areas: In addition to plastics and rubber, DINP can also be used to produce coatings, adhesives, inks and other products.

However, although DINP has a wide range of applications in many fields, it also has some shortcomings and controversies. Some studies have shown that DINP may have an effect on the body's endocrine system, so caution is needed when using it. At present, some countries and regions have restricted or regulated the use of DINP.

In short, DINP, as an important raw material for chemical production, is widely used in the fields of plastic and rubber products. However, it is necessary to consider its possible impact on human health and the environment, and take necessary measures for safe use and control.

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