三嗪结构炭化剂的制备、表征及其在聚丙烯中的应用

Q2 Engineering

Materials Research Innovations Pub Date : 2023-05-15 DOI:10.1080/14328917.2023.2212482

Qiong Yao, S. Yu

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引用次数: 1

摘要

摘要以三聚氰尿酸、啉和无水哌嗪为原料合成了三嗪类长链炭化剂。将合成的TCA与聚磷酸铵(APP)复配，得到膨胀型阻燃剂(IFR)。当IFR中TCA含量为35 ~ 45 wt%时，IFR具有良好的膨胀性能。然后，将不同比例的IFR掺入聚丙烯(PP)中制备阻燃PP复合材料，并通过极限氧指数(LOI)、垂直燃烧试验(UL-94)和锥量热仪试验研究了PP复合材料的阻燃性、热降解性能和可燃性。当在PP基体中加入20 wt%的IFR(含35 wt%的TCA)时，该复合材料达到了UL-94测试的V-0评级，其LOI值提高到28.8%。与纯PP相比，峰值放热率(PHRR)和总放热率(THR)分别从827.30(KW·m−2)和120.48(MJ·m−2)降至210.50(KW·m−2)和75.08(MJ·m−2)。

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Preparation and characterisation of a triazine structure charring agent and its application in polypropylene

ABSTRACT A triazine long chain charring agent (TCA) was synthesised using cyanuric chloride, morpholine and anhydrous piperazine. The synthesised TCA was compounded with ammonium polyphosphate (APP) to obtain an intumescent flame retardant (IFR). When the TCA content in the IFR was 35 wt% to 45 wt%, the IFR had good expansion properties. Then, different proportions of IFR were incorporated into polypropylene (PP) to prepare flame retardant PP composites, and the flame retardancy, thermal degradation behaviour and flammability behaviour for PP composites were investigated by limiting oxygen index (LOI), vertical burning test (UL-94) and cone calorimeter test. When 20 wt% of IFR (With TCA 35 wt%) were added into the PP matrix, the composite achieved a V-0 rating for the UL-94 test and its LOI value was increased to 28.8%. Compared with neat PP, peak heat release rate (PHRR) and total heat release (THR) decreased from 827.30(KW·m−2) and 120.48(MJ·m−2) to 210.50(KW·m−2) and 75.08(MJ·m−2).

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来源期刊

Materials Research Innovations 工程技术-材料科学：综合

CiteScore

5.20

自引率

0.00%

发文量

审稿时长

2.8 months

期刊介绍： Materials Research Innovations covers all areas of materials research with a particular interest in synthesis, processing, and properties from the nanoscale to the microscale to the bulk. Coverage includes all classes of material – ceramics, metals, and polymers; semiconductors and other functional materials; organic and inorganic materials – alone or in combination as composites. Innovation in composition and processing to impart special properties to bulk materials and coatings, and for innovative applications in technology, represents a strong focus. The journal attempts to balance enduring themes of science and engineering with the innovation provided by such areas of research activity.