PA66

PA66 (polyamide 66 or nylon 66), compared with PA66, PA6 is more widely used in automotive industry, instrument shell and other products which need to have impact resistance and high strength requirements.
Polyamide resin, the English name is polyamide, referred to as PA. Commonly known as Niron (Nylon), it is a general term for the main chains of repeating units containing amide groups of polymers. For the production of five engineering plastics in the largest and most varieties, the most widely used species.

Widely used in machinery, automobile, chemical and electrical device parts manufacturing, such as gear, a roller, a pulley, a roller shaft, pump impeller, fan blade, high pressure sealing Wai, a valve seat, a gasket, a bush, a handle, support frame, a wire wrapped inside.

PA66 polyamide 66 or nylon 66 chemical and physical properties PA66 has a high melting point in the polyamide material. It is a kind of crystal material. PA66 can maintain a strong strength and stiffness at higher temperatures. In product design, we must consider the effect of moisture absorption on geometric stability. In order to improve the mechanical properties of PA66, a variety of modifiers are often added. Glass is the most common additives, and sometimes in order to improve the impact of the impact of synthetic rubber, such as EPDM and SBR, etc.. PA66's viscosity is low, so the mobility is very good (but not as good as PA6). This property can be used to process very thin components. Its viscosity is very sensitive to temperature changes. The shrinkage rate of PA66 in 1%~2%, adding glass fiber additives can reduce the shrinkage rate to 0.2%~1%. The difference in the flow direction and the vertical direction of the flow direction is larger. PA66 is resistant to many solvents, but the resistance to acid and other chlorinated agents is weak.

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