Amoy Coace Plastic Technology Co.,Ltd
Add:131 Xifu Road, Xike Industrial Park, Xiamen, Fujian, China
Contact us:Micheal li
Nylon 6 Chemical and physical properties
Nylon 6 is also called PA6, polyamide 6, nylon 6, the chemical and physical properties and nylon 66 is very similar, however, its melting point is low, and the process temperature range is very wide. Its impact resistance and solubility are better than nylon 66 plastics, but the moisture absorption is stronger. Because many of the quality characteristics of plastic parts to be affected by hygroscopicity, so the use of nylon 6 design products to fully consider this point. In order to improve the mechanical properties of nylon 6, a variety of modifiers are often added.
Fiberglass is the most common additive, sometimes adding synthetic rubber, such as EPDM and SBR, to improve impact resistance. For products without additives, the shrinkage rate of nylon 6 plastic materials is between 1% and 1.5%. Adding fiberglass additives can reduce the shrinkage rate to 0.3% (but slightly higher in the direction of vertical flow). The shrinkage rate of the molding assembly is mainly affected by the crystallinity and hygroscopicity of the material. The actual shrinkage rate is also related to the design of plastic parts, wall thickness and other process parameters. Nylon 6 injection drying process due to nylon 6 is very easy to absorb moisture, so the drying before processing special attention. If the material is supplied in a waterproof material package, the container shall be kept airtight. If humidity is greater than 0.2%, it is recommended to dry for 16 hours in hot air above 80C. If the material has been exposed in the air for more than 8 hours, the proposed 105C, 8-hour vacuum drying. Nylon 6 Injection Molding process parameters Melting Temperature: 240-250 Shan, for the enhancement of the variety of 250.
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