Composite plastic additive is a kind of additive combination that plays an important role in plastic processing and application.
Composite plastic additives are usually composed of a variety of single additives with different functions in accordance with a certain proportion and formula. Such a combination can play a synergistic effect of a variety of additives, so as to improve the performance of plastics more effectively.
For example, a common compound plastic additive may include antioxidants, light stabilizers, lubricants, and plasticizers. Antioxidants can prevent the oxidative degradation of plastics during processing and use, and extend their service life; The light stabilizer can improve the resistance of plastics to ultraviolet light and reduce the performance decline caused by light. Lubricants can improve the flow of plastics during processing, reduce friction and heat generation, improve production efficiency and product quality; Plasticizers can increase the flexibility and processability of plastics.
In practical applications, the advantages of composite plastic additives are very significant. First of all, it simplifies the process of adding and using additives, reducing the operational complexity and error that may be caused by adding multiple single additives separately. Secondly, by optimizing the formula, the compound additives can more accurately meet the performance needs of specific plastic products, and improve the comprehensive performance and market competitiveness of the products.
For example, in the production of automotive plastic parts, the use of composite plastic additives specifically designed for automotive applications can make the parts have better weather resistance, wear resistance and mechanical strength. For example, the plastics used for food packaging need to meet strict safety standards, and the appropriate composite plastic additives can improve the barrier properties and stability of plastics under the premise of ensuring safety.
In short, composite plastic additives are an integral part of the plastics industry and play a key role in improving the quality, performance and application range of plastic products.
The use of composite plastic additives:
Accurate measurement: When using composite plastic additives, it is necessary to accurately measure the amount of additives added according to the formulation and production requirements of plastics. This usually requires the use of high-precision metering equipment to ensure that the amount of additives added is accurate.
Uniform dispersion: It is very important to disperse the composite plastic additives evenly in the plastic. It can be achieved by stirring and mixing in the plastic processing process. For example, in extrusion processing, it is necessary to ensure that the additives are fully mixed in the plastic melt.
The right time to add: according to the different plastic processing technology, choose the right time to add. Some additives need to be added early in the mixing of plastic raw materials, while others can be added at specific stages in the processing process.
Note:
Compatibility: To ensure that the composite plastic additives have good compatibility with the plastic used. Otherwise, it may lead to the auxiliaries can not play a role, and even affect the basic properties of plastics. For example, certain additives may be precipitated in certain plastics.
Stability: Pay attention to the stability of the compound additive during storage and use. Avoid the influence of adverse environmental conditions such as high temperature and humidity on the performance of additives.
Environmental protection and safety: Select composite plastic additives that meet environmental protection and safety standards, especially for plastic products in food, medical and other related fields.
Processing conditions: Different processing conditions (such as temperature, pressure, shear force, etc.) may affect the effect of the compound additives, and need to be adjusted according to the actual situation.
Batch consistency: Ensure that the purchased composite plastic additives have good consistency between batches to ensure the stability of the performance of plastic products.
Experimental verification: Before large-scale use, it is best to conduct small-scale experiments and tests to verify the effect and applicability of composite additives in specific plastic formulations and processing processes.
