低价供应 PA6 B3WG6 德国巴斯夫 热稳定

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 低价供应 PA6 B3WG6 德国巴斯夫 热稳定
The chemical and physical properties of PA6 are similar to PA66, however, it has a lower melting point and a wide range of process temperatures. It has better impact and solubility resistance than PA66, but it is also more hygroscopic. Because many of the quality characteristics of plastics are affected by hygroscopicity, this should be fully considered when designing products with PA6. In order to improve the mechanical properties of PA6, various modifiers are often added. Fiberglass is the most common additive, and synthetic rubber, such as EPDM and SBR, is sometimes added to improve impact resistance. For products without additives, PA6 shrank by between 1% and 1.5%. Adding fiberglass additives can reduce the shrinkage rate to 0.3% (but slightly higher in the direction perpendicular to the flow). The shrinkage rate of molding assembly is mainly affected by the crystallinity and hygroscopicity of the material. The actual shrinkage rate is also a function of the design, wall thickness and other process parameters.