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What Requirements Are Required For The PVC Film During The Processing
Jan 26, 2018

As the main material in plastics, PVC is undoubtedly a material with high plasticity. It is also the main form of plastic film at present. For example, PVC film, as a material with large hardness, has no difference in plastics value. As a kind of material with strong plasticity, its material quality is very critical, because it is often present in the city and in our life and work, so it is necessary to guarantee the quality of its products and materials. At present, in addition to the use of PVC film in our life, we also use PVC particles and particles, so it is of great significance to improve the quality of PVC particles.

So what should we do from those aspects?

1. put into the material according to the prescribed order, the general stabilizer is added first and poured in the valve.

2. in order to prevent occurrence of starch, mixing inequality. Generally, when the powder is started, the cylinder should be swept first and then start at low speed. The powder will be mixed evenly before adding plasticizer, and then sweep the cylinder before starting the second time, then start the oil. A low speed stirring should be opened for 1-2 minutes before placing the material in order to remove the volatiles.

3. mixing time and temperature control according to different specifications of plastic material distinction, the principle is to ensure the uniform mixing of materials, and the plasticizer is fully absorbed, no starch, no caking. Clean the cylinder when you are playing.

4. extrusion process control machine should also be based on the specifications of different rubber materials to be treated differently, in principle, should ensure that the material temperature gradually increased by the feeding section, compression section, section, gel forming section, the temperature in the compound or strip bright appearance under the premise may be appropriate to reduce. The general principle is to ensure the glue gel evenly, good, no raw material and burning and aggregation.

5. the material should be properly used and accurately weighed in accordance with the specified formula of the project, and the quantity or the substitute of raw materials shall not be changed without authorization.

6. feed industry should pay attention to frequently check valve to prevent the valve seal well and leakage of powder.