1、 What is the material of solid plasticizer

Solid plasticizer is a concept proposed relative to liquid plasticizer. It is an auxiliary plasticizer, usually used together with the main plasticizer to promote the plasticization of polymer materials and inhibit the release of the main plasticizer.

Solid plasticizers need to have specific chemical composition and specific chemical structure, such as specific pore structure. As a result, the solid plasticizer has the adsorption property to small molecule plasticizers such as DOP, thus playing a "fixed" role to small molecule plasticizers and avoiding the migration and precipitation of small compounds. In addition, solid plasticizers need to have good compatibility with PVC molecules, so that they can have good intertwining effect and have good dispersion performance in PVC products.

2、 What is the background of solid plasticizer

For a long time, the plasticizer mainly consists of o-benzene products. However, with the increasing popularity of DOP in the food and pharmaceutical industries, it is found that the plasticizer has the risk of precipitation, especially in the category of wires and cables in PVC soft products. Traditional liquid plasticizers have the tendency of precipitation, which has a negative impact on the application of materials, such as the mechanical properties and electrical properties of PVC cables. Therefore, it is required to reduce the amount of liquid plasticizer to reduce its precipitation risk. However, the decrease of plasticizer dosage will inevitably bring about other problems, such as material hardness, low temperature performance, tensile strength agent elongation at break, and so on. Thus, solid plasticizer came into being.