Azlin M N M, Sapuan S M, Zuhri M Y M, Zainudin E S, Ilyas R A
Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
School of Industrial Technology, Department of Textile Technology, Universiti Teknologi MARA, Cawangan Negeri Sembilan, Kampus Kuala Pilah, Kuala Pilah 72000, Negeri Sembilan, Malaysia.
Polymers (Basel). 2022 Jun 30;14(13):2690. doi: 10.3390/polym14132690.
This paper presents the thermal and flammability properties of woven kenaf/polyester-reinforced polylactic acid hybrid laminated composites. The effects of the fiber content and stacking sequences of hybrid composites were examined. The hybrid composites were fabricated using the hot press method. Thermogravimetric analysis, differential scanning calorimetry, dynamic mechanical analysis, and flammability properties of woven kenaf/polyester-reinforced polylactic hybrid composites were reported. The thermal results have demonstrated the effect of the hybridization of the composites on the thermal stability and viscoelastic properties of the laminates. The work also measured the burning rate of the hybrid composites during the flammability test. The S7 sample that consisted of all woven kenaf layers in composite recorded the highest char residue of 10%, and the S8 sample displayed the highest decomposition temperature among all samples. However, as for hybrid composites, the S5 sample shows the optimum result with a high char yield and exhibited the lowest burning rate at 29 mm/min. The S5 sample also shows the optimum viscoelastic properties such as storage and loss modulus among hybrid composites.
本文介绍了剑麻/聚酯纤维增强聚乳酸编织混杂层压复合材料的热性能和燃烧性能。研究了混杂复合材料中纤维含量和堆叠顺序的影响。采用热压法制备了混杂复合材料。报道了剑麻/聚酯纤维增强聚乳酸编织混杂复合材料的热重分析、差示扫描量热法、动态力学分析和燃烧性能。热性能结果表明了复合材料的混杂对层压板热稳定性和粘弹性的影响。该研究还测量了混杂复合材料在燃烧性能测试中的燃烧速率。复合材料中由所有剑麻编织层组成的S7样品记录的最高残炭率为10%，S8样品在所有样品中显示出最高的分解温度。然而，对于混杂复合材料，S5样品显示出最佳结果，具有高残炭率，并且在29毫米/分钟时表现出最低的燃烧速率。S5样品在混杂复合材料中还显示出最佳的粘弹性性能，如储能模量和损耗模量。
