What is the role of plasticizer and dibutyl in building waterproof coatings?

The functions of plasticizer and dibutyl in building waterproof coating are as follows:   
1. Plasticizer, also known as dioctyl ester, is used to plasticize, which can improve the flexibility and low-temperature performance of film-forming, and improve the compactness of waterproof coating.   
2. Dibutyl ester is mainly used as auxiliary plasticizer of polyvinyl chloride. Compared with dioctyl ester, dibutyl ester is easy to migrate and is often used in combination with dioctyl ester to reduce the addition cost of plasticizer.  
  plasticizer (Plasticizer) is a kind of polymer material additive, and it is also a phthalate ester in environmental estrogen. It has a wide variety, and the common variety is DEHP. DEHP chemical name di (2-ethylhexyl) phthalate, is a colorless, odorless liquid, widely used in industry. Plasticizer is a polymer material additive widely used in industry. Adding this substance in plastic processing can enhance its flexibility and easy processing.