Tannic acid coated ammonium polyphosphate: For flame retardant and UV resistant of polypropylene

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability Pub Date : 2024-08-14 DOI:10.1016/j.polymdegradstab.2024.110956

Xuqiang Zheng , Xinyu Chen , Xiaorong Guo, Jun Sun, Hongfei Li, Xiaoyu Gu, Sheng Zhang

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引用次数: 0

Abstract

Polypropylene (PP) has the advantages of excellent mechanical properties and easy molding, but its shortcomings such as high flammability and poor ultraviolet (UV) resistance cannot be ignored. In this paper, APP was used as the core, 1, 10-diamino-decane (DA) was used as a "bridge" to connect TA to the surface of APP, obtaining TAPP through oxidation self-polymerization. The addition of TAPP greatly improved the flame retardancy and UV resistance of PP matrix. The limiting oxygen index of the PP/22.5 %TAPP sample was increased to 31.0 %, and it was able to pass the UL-94 V-0 rating without droplet produced. Compared with PP samples, the peak heat release rate and peak smoke release rate of PP/22.5 %TAPP sample were reduced by 65.0 % and 44.7 %, respectively. In addition, the tensile strength and impact strength of PP/22.5 %TAPP samples decreased by only 2.7 % and 15.0 % after 60 h UV irradiation. The results showed that the addition of TAPP effectively improved the flame retardancy and UV aging resistance of PP. This study provides a feasible method for the preparation of anti-UV aging and flame-retardant PP composites.

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单宁酸包覆的聚磷酸铵：用于聚丙烯的阻燃和抗紫外线

聚丙烯（PP）具有机械性能优异、易于成型等优点，但其易燃性高、抗紫外线（UV）性能差等缺点也不容忽视。本文以 APP 为核心，以 1，10-二氨基癸烷（DA）为 "桥梁"，将 TA 连接到 APP 表面，通过氧化自聚合得到 TAPP。TAPP 的加入大大提高了 PP 基体的阻燃性和抗紫外线性能。PP/22.5 %TAPP 样品的极限氧指数提高到 31.0 %，能够通过 UL-94 V-0 级认证，且不会产生液滴。与 PP 样品相比，PP/22.5 %TAPP 样品的峰值热释放率和峰值烟释放率分别降低了 65.0 % 和 44.7 %。此外，在紫外线照射 60 小时后，PP/22.5 %TAPP 样品的拉伸强度和冲击强度仅降低了 2.7 % 和 15.0 %。结果表明，添加 TAPP 能有效改善 PP 的阻燃性和抗紫外线老化性能。该研究为制备抗紫外线老化和阻燃 PP 复合材料提供了一种可行的方法。

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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.