What causes foaming in plastic production? How to solve the foaming problem?

　　With the development of science and technology, plastic is more and more widely used, and has become an indispensable part of various household appliances, automobiles, mobile phones and other products. The vigorous development of these downstream industries has also led to an increase in the demand for plastics, which eventually led to the rise of a large number of plastic factories to meet the market demand. Silicone defoamer for plastics is specially used to eliminate foam produced in plastic production.

　　The main reasons for foam in plastic production are:

　　1. The material itself has a high moisture content

　　When purchasing raw materials, it is necessary to effectively control the moisture content of the materials to avoid exceeding the standard, because it can be dewatered by vacuum or purified by the second reaction in the plastic production process, so that the raw materials are not dry when leaving the factory and are environmentally friendly.

　　2. Wet foundation surface

　　The foundation surface is not maintained according to the standard. Even if the maintenance is improper, the water content of the foundation surface will increase due to the action of rainwater, resulting in foaming.

　　In a word, the moisture in raw materials is the decisive factor for foaming. Even if it contains a small amount of water, it will have a very serious impact on the production of plastic products. Therefore, companies usually use drying equipment to dry plastic. Each operation will consume a lot of energy and human resources, thus increasing the production cost of the product.

　　In the plastic production process, if organic silicon defoamer is added to the raw material, the problems such as bubbles, ripples, cracks and spots caused by moisture can be eliminated without adjusting the production process of the product. It has no adverse effect on physical and mechanical properties, saves time and effort, improves production efficiency and reduces costs. The defoaming agent can be used for defoaming of plastic, PE, PP, PS, ABS and other recycled plastics, plastic products production and other systems.