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[Chemical Knowledge]：The production process and preparation method of modified plastics.

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Modified plastic is a kind of material which is widely used in modern industrial production. It has excellent characteristics such as wear resistance, corrosion resistance and aging resistance. With the increase of demand, the production process of modified plastics has attracted more and more attention. This paper mainly introduces the production process and preparation method of modified plastics, including the principle of plastic modification, the type and selection of modifiers, production process and other related content.

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The production process of modified plastics mainly involves the processing of plastics and the addition of modifiers. The processing process of plastics includes the molding of plastics and subsequent processing procedures, and the addition of modifiers is to increase the characteristics of plastics and make them have better performance.

The modification of modified plastics is usually achieved by adding modifiers. Modifiers are a class of substances that can change the physical and chemical properties of plastics, or are better compatible with plastic molecules through physical or chemical interactions. The modified plastic has better performance and use effect than the original plastic.

There are many kinds of modifiers, including reinforcing agents, stabilizers, antioxidants, fillers, lubricants, colorants, etc. These modifiers can be selected according to demand, in order to achieve better modification effect.

The process of producing modified plastics is roughly divided into plastic molding, modifier addition, mixing and processing steps. Among them, plastic molding is the most basic step, including extrusion molding, injection molding, pipe extrusion, blow molding and other ways. The modifier can be added to the plastic surface by spraying, dipping, injection molding, extrusion and the like. After adding the modifier, it will be mixed and processed according to different product requirements, such as hot pressing, extrusion, injection molding and other methods.

The production process of modified plastics also needs to be paid enough attention to when dealing with waste. Based on environmental protection and resource conservation considerations, modified plastics manufacturers should deal with waste effectively to avoid environmental pollution. In general, waste can be used in various ways such as physical treatment, chemical treatment, and thermochemical treatment.

In the production process of modified plastics, in addition to process flow and waste treatment, quality and safety are also issues that require special attention. To ensure the stability and reliability of plastic quality in the production process, it involves many factors such as people, machines, and materials. For example, the operating skills of employees, the normal operation of machines, and the quality of raw materials are all factors that affect the quality of modified plastics. Therefore, manufacturers need to carry out comprehensive and strict quality control on the production process to ensure that the production effect of modified plastics reaches the expectation. At the same time, it is also necessary to pay attention to fire safety and industrial safety issues in the production process to ensure the safety of employees' lives and property.

The production process and preparation method of modified plastics involve many factors, including modification principle, type and selection of modifier, production process, waste treatment and quality safety. Manufacturers need to have a comprehensive grasp and effective management of these key factors in order to produce reliable quality modified plastic products.

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