As resource and environmental issues become increasingly prominent worldwide, bio-based polyamides demonstrate appealing prospects due to their renewable and low carbon emission characteristics. The preparation of intrinsically flame-retardant polyamides by copolymerization of reactive flame retardants with biomass monomers becomes a hot research topic at present. In this work, reactive flame retardant (r-FR) is synthesized, showing excellent solubility and temperature resistance. Subsequently, flame retardant polyamide 56 (FRPA56) are prepared by one-step melt polycondensation. Specifically, when the r-FR content is 6wt%, FRPA56 has a high limiting oxygen index of 28.4%, and the vertical combustion reaches V-0 level, demonstrating excellent flame-retardant performance. Moreover, FAPA56 also owns outstanding temperature resistance and mechanical properties even with a r-FR content of 8wt%, in which the melting temperature and tensile strength are 246.1 °C and 71.05 MPa, respectively. This work develops an effective strategy for constructing intrinsically flame-retardant polyamide material, which can meet the requirements of engineering plastics and exhibit satisfactory performance in the field of textile.

随着资源和环境问题在全球范围内日益突出，生物基聚酰胺因其可再生和低碳排放的特性展现出诱人的前景。反应型阻燃剂与生物质单体共聚制备本征阻燃聚酰胺成为当前的研究热点。在这项工作中，反应型阻燃剂 (r-FR) 被合成，表现出优异的溶解性和耐温性。随后，通过一步熔融缩聚制备阻燃聚酰胺56（FRPA56）。具体而言，当r-FR含量为6wt%时，FRPA56的极限氧指数高达28.4%，垂直燃烧达到V-0级，表现出优异的阻燃性能。而且，即使r-FR含量为8wt%，FAPA56也具有出色的耐温性和机械性能，其中熔化温度和拉伸强度分别为246.1 °C和71.05 MPa。这项工作开发了一种构建本征阻燃聚酰胺材料的有效策略，该材料可以满足工程塑料的要求，并在纺织领域表现出令人满意的性能。