| 摘要 |
“THERMOPLASTIC POLYACRYLONITRILE PRODUCTION PROCESS” describes the process that allows the thermoplastic polyacrylonitrile production by extrusion, a new material characterized by having in its composition the polymer polyacrylonitrile (PAN) plasticized with polyols, stabilizers and additives, which allows the acrylic fiber and carbon fiber production, it also allows other conformations in any equipment used in plastics industries as injectors, extruders and blowers. The thermoplastic polyacrylonitrile production process have the following steps: (I) prepare an acrylic or modacrylic polymer, polyols, stabilizers and additives mixture, (II) transfer the mixture to an extruder, (III) undergo to an extrusion process step, (IV) obtain the desired polymer shape directly into the extruder or pellets, (V) use the pellets in other equipments such as injection machines, blowers and extruders. The polyacrylonitrile fusibility problem was resolved by fusing it into an extruder, together high polarity plasticizers substances, such as polyols and stabilizers such liquid inorganic acids and/or halogenated compounds such halohydrins, which delay or prevent the cyclization, in these conditions, the melted polymer can be formed into filaments or otherwise desired, the process also allows the production of blends with polymers such as PVC, PVDC and PVDF that have anti-flame properties and with the polymers PHB, PHV, and polylactic acid that are biodegradable.
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