The main function of the lubricant is to reduce the friction between the molecules inside the plastic and between the plastic and the processing equipment during the processing, thereby improving the fluidity of the plastic. Resin improves the transparency and smoothness of the product.
According to the mechanism of lubricant, it can be divided into internal slip agent and external slip agent.
Internal slip agents generally have good compatibility and reduce friction during intermolecular processing.
External slip agents have limited compatibility and are free between particles, thereby reducing friction between molecules and processing equipment.
In order to produce high quality
In the formula, it is usually added with other additives (such as fluorescent brightener) with high quality, transparency, heat resistance, high strength, good fluidity, odorless and low consumption transparent particles. Auxiliary heat stabilizers and other modifiers
Agent.
When purchasing PVC particle gusset ceilings, we can also choose through some practical purchasing techniques to purchase high-quality and low-cost products.
Particle characteristics are one of the important characteristics of PVC. Resin. Average particle size and distribution, porosity and pore size distribution, primary particle size and degree of aggregation, film thickness and distribution are the main content that constitutes the characteristics of PVC resin particles, and affects the removal of monomers, absorption of plasticizers and processing of Clear pvc granules. And plasticizing.
Since the discovery of VCM as a carcinogen in the 1970s, foreign studies have found that the VCM removal rate and processing performance of Clear pvc granules are closely related to the particle structure (especially the internal porosity of the particles), and the degree of aggregation of primary particles.
In order to increase the porosity of Clear pvc granules and reduce the degree of aggregation of PVC primary particles, major PVC manufacturers have issued patents on improving the structure of Clear pvc granules, including selecting a dispersion system that matches the mixing characteristics to improve the structure of Clear pvc granules. The structure of Clear pvc granules.
method.
4. Test the tensile strength.
Manufacturers of aluminum alloy profiles should usually have this test equipment. By testing this performance, it is possible to clearly distinguish the advantages and disadvantages of the Clear pvc granules produced by the PVC transparent particle formula.
The Clear pvc granules produced by the PVC transparent particle formula are best stored at room temperature. Because the characteristic of polyamide is that the polyamide will become soft and the size will become larger in a high temperature or humid environment, so it will form a heat insulation strip, so it should be stored in the environment. Keep it ventilated and dry.
Personal data cannot be penetrated; the insulating tape will become brittle in a low temperature environment, and the size will become smaller, and it is easy to crack when the insulating tape is worn, resulting in scrapped profiles.
Clear pvc granules are the basic raw material for molding polyvinyl chloride plastics, and other auxiliary materials need to be taken out at a specific molding time.
As a famous manufacturer of PVC plastic particles in Hebei Province, we now teach you how to prevent us from buying low-quality Clear pvc granules. What should I pay attention to when buying?
Adding an external lubricant too early will reduce the friction heat and shear heat of the mixture, thereby affecting the mixing effect and dispersion performance of the stabilizer; adding the color masterbatch too early will affect the color of the PVC outline.
The ingredients must strictly follow the requirements of the formula ingredients and dosage, and the various raw materials required for production must be accurately weighed and distributed using measuring instruments with different accuracy.
Formulation ingredients and dosage
It was obtained after many rigorous tests. Too much usage will increase costs, while too little usage will affect the performance of PVC profiles. Therefore, if the batching work is wrong, it will have a significant impact on the quality of the PVC profile.
The total amount of hot mix cannot be ignored either.

PVC plastic particles may have defects such as granulation, pores and color difference during the production process. So, what are the reasons for these defects in PVC plastic particles?
All in all, a series of formulation adjustments are made by selecting/changing additives, such as introducing some cold-resistant polymers. Has better cold resistance.
The whole method can improve the cold resistance of PVC rubber particles and meet the requirements of low temperature use.
At the same time, we must pay attention to the processing temperature, cooling temperature, traction speed, structural design and many other aspects, which will also have a certain impact on the cold resistance of PVC products.
Therefore, when designing the PVC formula, the use conditions, product structure, processing equipment, process conditions and other factors must be considered together with the formula, and corresponding adjustments must be made through experiments to finally obtain a PVC formula with good cold resistance. Resistance.
1. Clear pvc granules made of a good PVC transparent particle formula can be heated to about 240 degrees. Under normal circumstances, the pressed heat-insulating cold bridge aluminum alloy profile must withstand a high temperature of 210 degrees before it can be thermally sprayed in the drying tunnel.
2. Use stress testing methods to measure accuracy.
Similarly, PA66 nylon and ordinary glass fiber are also used to make insulation strips. When the user tests the pressure, the greater the pressure change on the device, the worse the accuracy of the heat insulation strip.
3. Put Clear pvc granules made of PVC transparent particle formula on a large number of stainless steel wire meshes and burn them with an open flame. The white powder and black carbide are Clear pvc granules produced by a formula of inferior PVC transparent particles made of mineral fiber and stone powder.
Finally, when we buy goods, we must look for big brands and don’t buy low-quality products because of low prices.
We often use PVC plastic particles in the following products.