PA6 Nylon Material Properties & Injection Molding Process Conditions
PA6 is a kind of milk-white or yellowish keratoid crystalline polymers, and it can be coloured easily and freely. PA6 has good self lubrication, small rigidity, resistance to low temperature and bacteria, slow burning, slow quenching and dropping, foaming and excellent forming processing properties. And the processes for PA6 is also very easy, such as: injection, blow molding, casting, spraying, powder molding, machining, welding, and bolding, etc. Our PA6 nylon pipe can be customized according to your own specific requirements.
PA6 has the highest water absorption rate among all kinds of nylon. But it has poor dimensional stability and affects electrical performance and breaks down voltage. The maximum usage temperature that PA6 can reach is 180 DEG C. The temperature reduces to 160 DEG C with impact modifier and its thermal deformation temperature increases to 199 ℃ by adding 15% -50% glass fiber.
The chemical and physical properties of PA6 and PA66 are very similar. However, PA6’s melting point is very low, and its processing temperature range is very wide. Its impact strength and solvent resistance are better than PA66, and moisture absorption is also stronger. Because many plastic’s properties are affected by moisture absorption, various modifiers are often added when PA6 is used to increase its mechanical properties. And glass is the most common additive. Sometimes, synthetic rubber such as EPDM and SBR is added to improve impact resistance. For products without additive, shrinkage rate ranges from 1% to 1.5%. The addition of glass fiber additive can reduce the shrinkage rate to 0.3% ℃, but it is a little higher perpendicular to the process. The shrinkage rate of the forming assembly is mainly influenced by the crystallinity and the hygroscopicity of the material. The actual shrinkage rate is also related to the plastic part design, wall thickness and other process parameters.
Typical Application Of PA6: PA6 is widely used in structural components of machinery because of its good mechanical strength and stiffness. And it is also widely used to manufacture bearings as it has strong wear resistance.