What is the water absorption rate of the nylon series?

PA66: high fatigue strength and steel, good heat resistance, low friction coefficient, good wear resistance, but high hygroscopicity and insufficient dimensional stability. The shrinkage of PA66 is between 1% and 2%. The addition of glass fiber additives can reduce the shrinkage to 0.2%~1%. The shrinkage the ratio is large in the flow direction and in the direction perpendicular to the flow direction.

Application: Medium load, wear-resistant force transmission parts with temperature <100–120 degrees without lubrication or less lubrication.

Application: Light-duty, medium-temperature (80–100) wear-resistant and force-transmitting parts that work without lubrication or less lubrication and require low noise.

PA610: Strength. Rigid heat resistance is lower than that of nylon 66, but it has low hygroscopicity and good wear resistance.

Application: Same as nylon 6, it is suitable for parts with relatively precise gears and large changes in working conditions.

PA1010: Strength, rigidity and heat resistance are lower than nylon 66, moisture absorption is lower than nylon 610, the molding process is good, and the wear resistance is good.

Application: Light load, low temperature, large humidity change, MCA strength, fatigue resistance, heat resistance, and rigidity are better than PA6 and PA66 and the hygroscopicity is low under the condition of no lubrication or less lubrication. In PA6 and PA66, it has good wear resistance and can be directly formed in the model. It is suitable to cast large parts. Application: High load, high operating temperature (less than 120) without lubrication or less lubrication.

PA66 Compound

In the PA66 compound application, we will encounter a lot of physical property testing items, such as impact strength, elongation at break, ash, tensile strength, moisture, etc. Today we mainly to understand the impact performance and Tear resistance.

Impact properties are often encountered during our production process, which gives a direct picture of the general situation of PA66 compounds. Impact modifiers can increase the toughness of many brittle polymer materials, which are determined by their own, the amount of impact modifier and the dispersion of the modifier in the matrix. If the impact of the simply supported beam is constant after the test is shot out, congratulations, this product has good toughness and must not be careless.

There is also a performance that we don’t often see tears resistance. A promising field in which plastics replace metals is frictional applications. Plastics have the advantages of design flexibility, weight reduction, self-lubrication, etc., because these urgent applications require low dynamic friction and good wear resistance.

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