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[Chemical Knowledge]：What material is PA66? PA66 performance and application scenario analysis

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PA66 refers to polyamide 66, which is one of the important engineering plastic materials widely used in industry and daily life. Its chemical name is polyadipamide. The material has been widely used for its excellent performance, including automotive, electronics, home appliances and other fields. Below, we will learn more about this material from the performance of PA66, application areas, and advantages and disadvantages.

1. the performance characteristics of PA66

1. Good heat resistance: PA66 can operate in high temperature environment, and its glass transition temperature is as high as 70~85 ℃. Good strength and toughness can be maintained even in an environment of up to 150°C.

2. good mechanical strength: PA66 density, has a very good wear resistance, corrosion resistance performance characteristics, but also has high strength, rigidity and impact resistance.

3. Excellent lubricity: PA66 can exhibit a good and stable lubrication effect under high-speed friction or high pressure without additional lubricant.

4. Excellent electrical insulation: PA66 has good electrical insulation, so it is widely used in the electrical industry.

5. Stable size: PA66 will not expand or thermally deform at high temperatures because of its small thermal expansion coefficient.

2. PA66 application areas

PA66 performance and characteristics make it an indispensable material for many industries. At present, its application fields mainly include the following aspects:

1. Automotive industry: PA66 can be used to manufacture automobile exhaust pipes, automobile dashboards, automobile doors and windows, automobile engine shells, etc., and can be used due to its stable size. Manufacturing automobile insulation parts.

2. Electronic equipment: Because PA66 has good electrical insulation properties, it can be used in electrical equipment, circuit boards, scanners, etc.

3. Electrical appliances: Various types of switches, plugs and plug sockets can be manufactured, such as fan blades of range hoods, oven racks of electric ovens, etc.

4. Household goods: can be used to manufacture indoor doors and window frames, various tables and chairs, umbrellas and shoes, etc. Advantages and disadvantages of

3. PA66

1. Advantages:

(1) high mechanical strength;

(2) wear resistance, corrosion resistance;

(3) high temperature resistance, stable strength;

(4) Good electrical insulation;

(5) low coefficient of thermal expansion, stable shape.

2. Disadvantages:

(1) is expensive;

(2) is not strong enough for UV resistance.

PA66 as an excellent engineering plastic material, with its excellent performance has won a wide range of applications, including automotive, electronics, home appliances and other fields. In the future, with the progress of science and technology, the application range of PA66 will continue to expand. Although the high price and insufficient UV resistance are the shortcomings of PA66, its excellent performance and stable properties make it an essential position in many fields.