O PA6, também conhecido como nylon 6, é uma partícula branca leitosa translúcida ou opaca, com termoplástico, peso leve, boa tenacidade, resistência química e características de durabilidade, geralmente usado em autopeças, peças mecânicas, produtos eletrônicos e elétricos, acessórios de engenharia e outros produtos.

As propriedades químicas e físicas do PA6 são semelhantes às do PA66; no entanto, tem um ponto de fusão mais baixo e uma ampla faixa de temperatura de processo. Sua resistência ao impacto e solubilidade são melhores que o PA66, mas também é mais higroscópico.

Como muitas características de qualidade das peças plásticas são afetadas pela higroscopicidade, isso deve ser totalmente considerado ao projetar produtos que usam PA6. A fim de melhorar as propriedades mecânicas do PA6, uma variedade de modificadores é frequentemente adicionada. A fibra de vidro é o aditivo mais comum e, às vezes, a borracha sintética é adicionada para melhorar a resistência ao impacto.

PA66 plastic has a higher melting point in polyamide materials. It is a semi-crystalline - crystalline material. PA66 can also maintain strong strength and stiffness at higher temperatures. PA66 plastic still has hygroscopic properties after molding, the extent of which mainly depends on the composition of the material, wall thickness and environmental conditions. The effect of hygroscopicity on geometric stability must be considered in product design. In order to improve the mechanical properties of PA66, a variety of modifiers are often added. Glass is the most common additive, and sometimes synthetic rubber is added to improve impact resistance. PA66 plastic is less viscous and therefore flows well (but not as well as PA6).

PA66 (polyamide 66 or nylon 66), compared with PA6, PA66 is more widely used in the automotive industry, instrument housing and other products requiring impact resistance and high strength requirements.

Widely used in the manufacture of machinery, automobile, chemical and electrical equipment parts, such as gear, roller, pulley, roller shaft, pump body impeller, fan blade, high pressure sealing, valve seat, gasket, bushing, various handles, support frame, wire package inner layer, etc.

PA66 plastic raw material is translucent or opaque opalescent crystalline polymer, with plasticity. Density 1.15g /cm3. Melting point 252℃. Embrittlement temperature -30℃. Thermal decomposition temperature is greater than 350℃. Continuous heat resistance 80-120℃, balanced water absorption rate of 2.5%. Resistant to acid, alkali, most aqueous inorganic salts, alkyl halides, hydrocarbons, esters, ketones and other corrosion, but easy to phenol, formic acid and other polar solvents. It has excellent wear resistance, self lubricity and high mechanical strength. But the water absorption is larger, so the dimensional stability is poor

PA66 is a variety of PA series with high mechanical strength and wide application. Due to its high crystallinity, it has high rigidity and heat resistance.

Xiamen LFT composite plastic Co., Ltd. is a brand-name company that focuses on LFT&LFRT. Long Glass Fiber Series (LGF) & Long Carbon Fiber Series (LCF). The company's thermoplastic LFT can be used for LFT-G injection molding and extrusion, and can also be used for LFT-D molding. It can be prosuced according to customer requirements: 5~25mm in length. The company's long-fiber continuous infiltration reinforced thermoplastics have passed ISO9001&16949 system certification, and the products have obtained lots of national trademarks and patents.