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What should be paid attention to when choosing plastic additives

Release time:

2020-01-17 11:52

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　　Plastic additives not only make the polymer easy to process, but also make up for the shortcomings of the polymer itself to a large extent, such as improving the performance of the product and prolonging the service life. Therefore, it is no exaggeration to say that without the cooperation of processing aids, there will be no development of the plastics industry.

　　Whether the plastic additives are selected correctly directly affects the processing, the performance and service life of the product. When choosing additives, you need to consider the following 4 main issues:

　　1. Compatibility of additives and polymers

　　Compatibility refers to the performance that the additive and the polymer can be well mixed together without phase separation and precipitation. Adjuvants must exist in the product stably for a long time, so that they can play their due role, so try to choose the adjuvant with good compatibility with the polymer.

　　2. The adaptability of additives to processing conditions

　　The same polymer requires different plastic additives due to different processing methods.

　　3. Give full play to the synergistic effect of helping Jing

　　A plastic often uses a variety of additives. These additives are in the same system and often affect each other. If they are properly coordinated, they will have a synergistic effect when used, which is called "synergy".

　　4. Restrictions on additives by the use of products

　　The choice of plastic auxiliaries is often limited by the use of the product. For example, plastic products always come into contact with people, especially those used for food packaging and blood transfusion, which are more closely related to human health.

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