The influence of the oxygen containing functional groups on carbon fibers for mechanical properties and recyclability of carbon fiber reinforced thermos-plastics (CFRTPs) made with in-situ polymelizable polyamide 6 (PA6) have been discussed. Interfacial adhesion between CFs with functional groups and PA6 became higher compared with that of because of the interaction such as hydrogen bond, covalent bond. Furthermore, it was revealed that these effects apparently improved the mechanical properties of the CFRTPs. On the other hand, the interaction between the functional groups and PA6 affected the recyclability of the CFRTPs. Although PA6 as the matrix polymer of the CFRTP could be pyrolyzed even under N₂ gas and recycle CFs with very little char could be obtained at 600 °C, it was found that the tensile strength decreased after pyrolytic process by about 10% only when the CFs with the functional groups were used for reinforcement fibers.

讨论了含氧官能团对碳纤维的机械性能和原位可聚聚酰胺6（PA6）制成的碳纤维增强热塑性塑料（CFRTP）的可回收性的影响。由于具有氢键，共价键等相互作用，具有官能团的CF与PA6之间的界面粘合性变得更高。此外，揭示了这些作用明显改善了CFRTP的机械性能。另一方面，官能团和PA6之间的相互作用影响了CFRTP的可回收性。尽管PA6作为CFRTP的基质聚合物，即使在N ₂下也可以热解。 在600℃下，可以得到几乎没有炭的气体和循环CFs，发现仅当将具有官能团的CFs用作增强纤维时，热解后的拉伸强度才降低约10％。