As the manufacturing and processing technology of twin-screw extruders becomes better and better, it not only has to perform tasks such as feeding and plasticizing, but also has some requirements such as dehydration and drying. In order to better meet the different needs of users, the twin-screw extruder must continuously improve its working efficiency, and also find ways to improve the quality of the products produced.

Polyethylene terephthalate is a colorless, transparent substance with a certain gloss (amorphous), or an opaque milky white substance (crystalline). Physical properties: Polyethylene is non-toxic, odorless, and milky white. It has a density of 0.91-0.96g/cm3 and is a crystalline plastic. Polyethylene has a certain mechanical strength, but its mechanical strength is lower than that of other plastics and its surface hardness is poor.

In summary, although the resin begins to melt at its melting point, in order to ensure a smooth extrusion process and produce high-quality films, it usually needs to be processed at a temperature higher than the melting point.

Roots blowers and screw blowers have their own characteristics, and the choice should be based on the needs and scenario conditions of the specific application. Roots blowers are suitable for occasions with large flow and low pressure requirements, while screw blowers are more suitable for applications that require high pressure and stable airflow.

In the quality indicators of raw materials, we often encounter some terms. Accurately understanding their meanings will help us better grasp the performance of raw materials. Here are some commonly used terms.

To improve the film's sliding properties, a sliding additive is introduced during its production (usually the active substances are oleamide and erucamide). After film extrusion, the additive migrates to the surface and creates a sliding layer on it, due to which the friction coefficient is significantly reduced and the film's sliding properties are improved.

The plastic granulator is a kind of equipment commonly used to produce plastic granules. The temperature regulation of each area is very important for product quality and production efficiency. The following will introduce in detail the temperature regulation method of each area of the plastic granulator.

CaCO3 powder, also known as calcium carbonate powder, is often added to plastic pellets for the following reasons:1. Reduce costs 2. Improve mechanical properties 3. Density Adjustment 4. Improved processing properties 5. Environmental benefits 6. Improve the heat resistance of plastic products 7. Improve the light diffusion of plastics 8. It can make the product have some special properties

How to choose among 7 pelletizing methods? 01.Process performance of pelletizing device 02.When ordering, is it better to choose cold cuts or hot cuts? 03.There are seven types of pelletizing lines commonly seen on the market:

As the main equipment for compounding production, the extruder is the most difficult and dangerous to operate. Today, we have sorted out some tips for you to keep in mind during the operation and debugging of the extruder, so as to protect safe and efficient production.