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首页> 外文期刊>RSC Advances >Preparation and characterization of polyamide 6 fibre based on a phosphorus-containing flame retardant
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Preparation and characterization of polyamide 6 fibre based on a phosphorus-containing flame retardant

机译：基于含磷阻燃剂的聚酰胺6纤维的制备与表征

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摘要

Intrinsically flame retardant polyamide 6 (FRPA6) was synthesized by melt polycondensation of caprolactam and 9,10-dihydro-10-[2,3-di(hydroxycarbonyl)propyl]-10-phosphaphenanthrene-10-oxide (DDP). Following this, FRPA6 fibres were prepared by melt spinning. The chemical structure, thermal stability, mechanical and combustion properties of FRPA6 were characterized by Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, differential scanning calorimetry, thermogravimetric analysis, tensile measurements, vertical burning measurements, limiting oxygen index (LOI) measurements, cone calorimetry and scanning electron microscopy. The thermal stability of FRPA6 decreased to a certain extent, but the amount of residual char was improved. FRPA6 containing 5 wt% DDP could achieve a V-0 rating with an LOI value of 33.7%. The spinnability of FRPA6 fibres was good and the tenacity at break reached 3.0 cN dtex ~(?1) which met the requirements of textiles. The flame retardancy of FRPA6 fibres was definitely improved and the LOI value of FRPA6-5 fabric could reach 28.4%, thereby showing good prospect in applications.
机译：通过己内酰胺和9,10-二氢-10- [2,3-二（羟羰基）丙基] -10-膦菲-10-氧化物（DDP）的熔融缩聚反应合成了本征阻燃聚酰胺6（FRPA6）。之后，通过熔融纺丝制备FRPA6纤维。 FRPA6的化学结构，热稳定性，机械和燃烧性能通过傅立叶变换红外光谱，核磁共振光谱，差示扫描量热法，热重分析，拉伸测量，垂直燃烧测量，极限氧指数（LOI）测量，锥量热法进行了表征和扫描电子显微镜。 FRPA6的热稳定性在一定程度上降低，但残炭量有所提高。含有5 wt％DDP的FRPA6可以达到V-0等级，LOI值为33.7％。 FRPA6纤维的可纺性良好，断裂强度达到3.0 cN dtex〜（？1），符合纺织品的要求。 FRPA6纤维的阻燃性得到明显提高，FRPA6-5织物的LOI值可达到28.4％，具有广阔的应用前景。

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