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What are the upstream raw materials of PA? What are the downstream products?
In the field of chemical production raw materials, PA(polyamide, frequently known as nylon) is an crucial engineering plastic with excellent mechanical characteristics, heat resistance, wear resistance, chemical resistance and so on. PA has a wide range of upstream and downstream related items, and some of the main upstream and downstream items will be described in detail below. Upstream items:
1. Adipic acid: Adipic acid is the main raw material of PA66, prepared by the polycondensation interaction of hexamethylene diamine and adipic acid. The production methods of adipic acid mainly include phenol method, cyclohexane method and butadiene method.
2. And Caprolactam: Caprolactam is the main raw material of PA6, prepared by ring opening polymerization. The production methods of caprolactam mainly include phenol method, cyclohexanone oxime method and photo nitrosation method. Downstream items:
1. PA6 fiber: PA6 fiber is a synthetic fiber, with good elasticity, abrasion resistance, wrinkle resistance and dyeing, broadly applied in textiles, clothing and manufacturing textiles and other fields.
2. PA66 fiber: PA66 fiber has high strength and rigidity, good heat resistance and chemical resistance, broadly applied in manufacturing filter cloth, security belt, tire cord and other fields.
3. And PA engineering plastics: PA engineering plastics have excellent mechanical characteristics, heat resistance, wear resistance, chemical resistance and other characteristics, broadly applied in automobiles, electronics, aerospace, construction, machinery and other fields. Among them, PA6 and PA66 are the most broadly applied varieties.
4. PA film: PA film has good atmosphere permeability, oil resistance, tear resistance and puncture resistance, broadly applied in food packaging, medical packaging, agricultural film and other fields. I've found that In short, PA has a wide range of upstream and downstream related items, involving many fields, which has played an crucial role in promoting the research of the chemical sector.
1. Adipic acid: Adipic acid is the main raw material of PA66, prepared by the polycondensation interaction of hexamethylene diamine and adipic acid. The production methods of adipic acid mainly include phenol method, cyclohexane method and butadiene method.
2. And Caprolactam: Caprolactam is the main raw material of PA6, prepared by ring opening polymerization. The production methods of caprolactam mainly include phenol method, cyclohexanone oxime method and photo nitrosation method. Downstream items:
1. PA6 fiber: PA6 fiber is a synthetic fiber, with good elasticity, abrasion resistance, wrinkle resistance and dyeing, broadly applied in textiles, clothing and manufacturing textiles and other fields.
2. PA66 fiber: PA66 fiber has high strength and rigidity, good heat resistance and chemical resistance, broadly applied in manufacturing filter cloth, security belt, tire cord and other fields.
3. And PA engineering plastics: PA engineering plastics have excellent mechanical characteristics, heat resistance, wear resistance, chemical resistance and other characteristics, broadly applied in automobiles, electronics, aerospace, construction, machinery and other fields. Among them, PA6 and PA66 are the most broadly applied varieties.
4. PA film: PA film has good atmosphere permeability, oil resistance, tear resistance and puncture resistance, broadly applied in food packaging, medical packaging, agricultural film and other fields. I've found that In short, PA has a wide range of upstream and downstream related items, involving many fields, which has played an crucial role in promoting the research of the chemical sector.
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