Calcium carbonate filler masterbatch is a particle with a volume similar to the base resin of plastic products made by mixing calcium carbonate with carrier resin and mixing and granulating. It has a wide range of application value in the plastics industry. Before masterbatch processing, the surface of calcium carbonate powder is modified to increase its dispersibility, which can greatly improve the crosslinking with the resin. However, there are still 5 issues that need to be paid attention to during the production of calcium carbonate filler masterbatch.

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.

List of PS modified formulas 1. PS blending 2. Flame retardant reinforced toughened PS/PBT blended alloy material 3. PS flame retardant 4. Halogen-free flame retardant modified HIPS 5. PS foaming 6. Low foaming HIPS plastic paper

The reinforcing materials used in reinforced nylon are mainly fibrous substances such as glass fiber, carbon fiber, and whiskers, among which glass fiber reinforcement is the most widely used. The rigid strength and hardness of the material can be significantly improved through glass fiber reinforcement, and the dimensional stability and heat resistance of the material can be significantly improved. Since nylon itself is not strong enough, 10-30% of fiber is added to increase its strength. In particular, 30% intensity is recognized as the most appropriate ratio.

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.

Have you solved these problems encountered in the production process of TPE extrusion materials? 1. Rough surface of molded product 2. Scaling 3. Unstable extrusion volume 4. Deformation 5. Stripes

The loss-in-weight scale uses the weighing hopper and the entire feeding mechanism as a scale body for weighing. As the material flows out of the loss-in-weight scale, the control system collects the weight signal of the scale body at a high speed and high frequency to obtain the weight reduction of the material in the weighing hopper per unit time. Then, through TRUSTAR's unique filtering and optimization processing, the actual flow rate of the loss-in-weight scale is obtained. At the same time, the control system compares this feeding speed with the preset given speed, and calculates the comparison result and feeds it back to the feeding mechanism of the loss-in-weight scale to automatically correct the feeding speed of the feeding mechanism, forming a closed-loop control, so that the actual flow rate is infinitely close to the given flow rate, thereby meeting the control requirements.

Regarding the production process of ABS resin, in industrial applications, the underwater strand pelletizing process is more common and more mature. However, the pelletizing system is not closed and there may be some uncertain factors that may lead to product contamination, such as the die plate of the industrial extruder, the water bath, etc.

Masterbatch is the most common plastic coloring method and is widely used in the plastic processing industry. Dispersion is one of the most important performance indicators of masterbatch. Obviously, dispersion has a vital impact on the quality of plastic products.

Perhaps many people have discovered that most of the extruders used in large-scale product production lines are single-screw structures, and very few are twin-screw structures. Upstream raw material suppliers, especially manufacturers of modified materials, functional masterbatches or color masterbatches, mostly use twin-screw extruders. Why is there such a difference? In this article, the editor will analyze and discuss the difference between single-screw extruders and twin-screw extruders.