Preparation of core-shell melamine cyanuric based flame retardant for improving comprehensive performance of polyamide 56

IF 6.3 2区化学 Q1 POLYMER SCIENCE Polymer Degradation and Stability Pub Date : 2024-07-27 DOI:10.1016/j.polymdegradstab.2024.110933

引用次数: 0

Abstract

The preparation of flame retardant PA56 material with superior thermal stability, melt-drop resistance, and mechanical properties has been challenging in industry. Herein, we prepared a core-shell MCA-based flame retardant (BP-MCA) for PA56 via the hydrogen bond self-assembly and solvent exchange strategies. The hydrogen bond self-assembly strategy modulates the morphology of MCA-based flame retardant. The solvent exchange strategy further improves the dispersion, and char-forming properties of flame retardant. Compared with PA56, PA56/BP-MCA achieves the UL-94 V-0 rating, LOI value of 32.5 % and THR value of 55.2 MJ/m². Besides, PA56/BP-MCA exhibits superior mechanical properties due to the larger aspect ratio and better dispersion of BP-MCA.

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制备芯壳三聚氰胺氰尿酸基阻燃剂以改善聚酰胺 56 的综合性能

制备具有优异热稳定性、耐熔滴性和机械性能的 PA56 阻燃材料一直是工业领域的挑战。在此，我们通过氢键自组装和溶剂交换策略制备了一种核壳 MCA 基 PA56 阻燃剂（BP-MCA）。氢键自组装策略可调节 MCA 型阻燃剂的形态。溶剂交换策略进一步改善了阻燃剂的分散性和成炭性能。与 PA56 相比，PA56/BP-MCA 达到了 UL-94 V-0 级，LOI 值为 32.5 %，THR 值为 55.2 MJ/m2。此外，由于 BP-MCA 的长径比更大，分散性更好，PA56/BP-MCA 还具有更优越的机械性能。

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来源期刊

Polymer Degradation and Stability 化学-高分子科学

CiteScore

10.10

自引率

10.20%

发文量

325

审稿时长

23 days

期刊介绍： Polymer Degradation and Stability deals with the degradation reactions and their control which are a major preoccupation of practitioners of the many and diverse aspects of modern polymer technology. Deteriorative reactions occur during processing, when polymers are subjected to heat, oxygen and mechanical stress, and during the useful life of the materials when oxygen and sunlight are the most important degradative agencies. In more specialised applications, degradation may be induced by high energy radiation, ozone, atmospheric pollutants, mechanical stress, biological action, hydrolysis and many other influences. The mechanisms of these reactions and stabilisation processes must be understood if the technology and application of polymers are to continue to advance. The reporting of investigations of this kind is therefore a major function of this journal. However there are also new developments in polymer technology in which degradation processes find positive applications. For example, photodegradable plastics are now available, the recycling of polymeric products will become increasingly important, degradation and combustion studies are involved in the definition of the fire hazards which are associated with polymeric materials and the microelectronics industry is vitally dependent upon polymer degradation in the manufacture of its circuitry. Polymer properties may also be improved by processes like curing and grafting, the chemistry of which can be closely related to that which causes physical deterioration in other circumstances.