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首页> 外文期刊>Polymers for advanced technologies >Preparation and characterizations of inherent flame retarded polyamide 66 containing the phosphorus linking pendent group
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Preparation and characterizations of inherent flame retarded polyamide 66 containing the phosphorus linking pendent group

机译：含有磷连接垂直组的固有阻燃聚酰胺66的制备及表征

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摘要

Polyamide 66 (PA66) containing the phosphorus linking pendent group with inherent flame retardancy property was prepared by condensation polymerization of hexamethylene diammonium adipate (AH salt) and 9,10-dihydro-10-[2,3-di(hydroxycarbonyl)propyl]-10-phosphaphenanthrene-10-oxide (DDP) as a co-monomer. Prior to condensation polymerization, DDP was reacted with hexamethylene diamine (HMDA), which made DDP easier to react with AH salt. Then, the DDP-HMDA was introduced into AH salt solution to prepare inherent flame retarded PA66 (FRPA66). Fourier transform infrared spectra, nuclear magnetic resonance spectra, gel permeation chromatography, differential scanning calorimetry, thermogravimetric analysis, tensile test, vertical burning test, limiting oxygen index test, cone calorimetry, and scanning electron microscopy were utilized to investigate the properties of FRPA66. Experimental results indicated that the bulky pendent phosphorus group tended to destroy the structure regularity of FRPA66 and the molecular weight, crystallinity, and thermal stability reduced. The tensile strength of FRPA66 containing 5wt% of DDP was 58.44MPa, and it can achieve a V-0 rating according to the vertical burning test with the limiting oxygen index value of 33.2%. This indicated that the inherent flame retarded PA66 expanded the application of PA66 materials.
机译：通过己烯二氨基氨基铵（AH盐）和9,10-二氢-10- [2,3-二（羟基羰基）丙基]通过缩合聚合制备含有固有的阻燃性的聚酰胺66（PA66）具有固有的阻燃性的具有固有的阻燃性。 10-磷蒽蒽-10-氧化物（DDP）作为共单体。在缩合聚合之前，DDP与六亚甲基二胺（HMDA）反应，这使得DDP更容易与αh盐反应。然后，将DDP-HMDA引入AH盐溶液中以制备固有的阻燃PA66（FRPA66）。傅里叶变换红外光谱，核磁共振谱，凝胶渗透色谱，差分扫描量热法，热重分析，拉伸试验，垂直燃烧试验，限制氧指数试验，锥形量热量和扫描电子显微镜研究探讨FRPA66的性质。实验结果表明，庞大的侧磷组倾向于破坏FRPA66的结构规律和分子量，结晶度和热稳定性。含有5wt％DDP的FRPA66的拉伸强度为58.44MPa，可根据垂直燃烧试验达到V-0等级，限制氧指数值为33.2％。这表明固有的阻燃PA66扩展了PA66材料的应用。

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