石墨烯对聚丙烯复合材料性能影响的优化掺量研究
Study on Optimization Dosage of Graphene on Properties of Polypropylene Composites
以石墨烯微片(GNPs)为阻燃剂和抗静电剂改性聚丙烯(PP),制备PP/GNPs复合材料,通过力学性能、阻燃性能和抗静电性能研究得出GNPs对复合材料综合性能的影响规律,并建立曲线相关性方程。研究表明:随着GNPs含量的增加,复合材料的拉伸强度和弯曲强度先增加后降低。GNPs提高了复合材料的阻燃性能。GNPs质量分数为0~8%时,极限氧指数(LOI)、总热释放量(THR)和总烟释放量(TSP)的变化规律与GNPs含量接近线性关系;进一步增加GNPs,LOI增长缓慢,THR和TSP降低缓慢。GNPs提高了复合材料的抗静电性能。GNPs质量分数为0~8%时,表面电阻率与GNPs含量呈线性降低关系;进一步增加GNPs,表面电阻率基本稳定。GNPs质量分数达到8%后,复合材料抗静电性能在不同温度和湿度下保持稳定。GNPs质量分数为8%时,复合材料综合性价比较高,与纯PP相比,LOI提高71.2%,THR和TSP降低55.1%和51.2%,表面电阻率降低近10个数量级且满足相关标准要求。
Graphene nanoplatelets (GNPs) were used as flame retardants and antistatic agents to modify polypropylene (PP) to prepare PP/GNPs composites. Through the study of mechanical properties, flame retardancy, and antistatic performance, the influence of GNPs on the comprehensive properties of the composites was determined, and curve correlation equations were established. The research indicated that as the amount of GNPs increased, the tensile and flexural strengths of the composites first rose and then declined. GNPs enhanced the flame retardancy of the composites; when the mass fraction of GNPs was between 0 and 8%, the changes in the limiting oxygen index (LOI), total heat release (THR), and total smoke release (TSP) were nearly linear with the GNP content. However, further increases in GNPs led to a slower rise in LOI and a slower decline in THR and TSP. GNPs also improved the antistatic performance of the composites; with a GNP mass fraction of 0 to 8%, the surface resistivity decreased linearly with increasing GNP content. Beyond this range, the surface resistivity remained relatively stable. When the GNP mass fraction reached 8%, the antistatic performance of the composites remained stable under different temperature and humidity conditions. At a GNP mass fraction of 8%, the composites exhibited a high comprehensive performance. Compared with pure PP, the LOI increased by 71.2%, while THR and TSP decreased by 55.1% and 51.2%, respectively. The surface resistivity was reduced by nearly 10 orders of magnitude, meeting the relevant standard requirements.
| [1] |
王鑫, 蒋敏, 陈思月, |
| [2] |
潘筱晨, 何宇, 许顺雯, |
| [3] |
陈泽华, 王涛. 高性能共聚聚丙烯的产品开发及应用进展[J]. 广东化工, 2025, 52(6): 74-76. |
| [4] |
张振环, 马航, 万邦隆, |
| [5] |
张志豪. 膨胀型阻燃体系和协效剂的表面改性及其在聚丙烯中的应用[D]. 北京: 北京化工大学, 2023. |
| [6] |
刘阳冬. 抗静电剂的设计合成及其对聚丙烯性能的影响研究[D]. 甘肃: 兰州理工大学, 2023. |
| [7] |
陈锋, 董斌. 抗老化PP复合管材的制备及性能研究[J]. 塑料科技, 2024, 52(10): 61-65. |
| [8] |
庞龙凤, 张朝山, 董虹星. 汽车仪表板用改性聚丙烯复合材料的制备及性能研究[J]. 塑料科技, 2023, 51(5): 57-61. |
| [9] |
黄传兵, 祝志东, 邓兆敬. 电容器薄膜用聚丙烯树脂的发展现状[J]. 电力电容器与无功补偿, 2024, 45(1): 27-34. |
| [10] |
展召顺, 申津锋, 石启星. 微胶囊阻燃抗静电聚丙烯的制备及其性能[J]. 黑龙江科技大学学报, 2025, 35(1): 43-50. |
| [11] |
李明, 欧红香, 冉镒柠, |
| [12] |
杨玺, 任宏光, 李辉, |
| [13] |
陈洪派, 杨行, 刘银东, |
| [14] |
鲍大顺. 石墨烯制备阻燃型聚苯乙烯保温材料力学性能和热学性能的研究[J]. 塑料科技, 2024, 52(5): 101-103. |
| [15] |
徐钰东, 穆柄臻, 刘梦琪, |
| [16] |
周莹, 刘世盟, 赵近川, |
| [17] |
陈小婷, 吴诗雯, 任豪, |
| [18] |
陈加亮, 卫敏. 改性石墨烯对锦纶复合材料性能影响研究[J]. 中国纤检, 2024(3): 99-102. |
| [19] |
王昊, 王熙宇, 熊英, |
| [20] |
汪文, 丁宏亮, 张子宽, |
| [21] |
刘慧瑜, 李蕾, 张文忠, |
| [22] |
孙晓辉, 张婧婧. 石墨烯/聚丙烯纳米复合材料流变与拉伸性能[J]. 塑料, 2020, 49(2): 152-155. |
| [23] |
汪国美, 张阳, 吴宏, |
| [24] |
裴玉杰, 胡艳丽, 冯东, |
| [25] |
朱晓菲. 石墨烯-聚苯乙烯复合材料的制备及阻燃性能研究[J]. 功能材料, 2024, 55(7): 7091-7097. |
| [26] |
高嘉祥, 靳昕怡, 杨佩鑫, |
| [27] |
|
云南省教育厅科学研究基金项目(2021J0910)
/
| 〈 |
|
〉 |