Dayan Md Anisur Rahman, Habib Md Mahmudul, Uddin Md Moslem, Khatun Mahmuda, Hossain Md Sahadat, Rashid Muhammad Abdur
Textile Physics Division, Bangladesh Jute Research Institute, Dhaka, Bangladesh.
Technology Wing, Bangladesh Jute Research Institute, Dhaka, Bangladesh.
Heliyon. 2024 Jul 26;10(15):e35261. doi: 10.1016/j.heliyon.2024.e35261. eCollection 2024 Aug 15.
In this research, Aloe Vera Gel (AVG) was incorporated into Unsaturated Polyester Resin (UPR) with jute-cotton union fabric to fabricate partially biodegradable composites. These composites were fabricated using a hand lay-up technique and characterized using Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetry Analysis (TGA), thermal conductivity measurements, water absorption tests, degradation assessments, cracking tests, and Universal Testing Machine (UTM) analysis. The study found that increasing the percentage of AVG in the composites led to a decrease in thermal conductivity, indicating improved insulation properties. Samples reinforced with AVG showed enhanced resistance to damage from iron nails, with reduced scratching and fiber displacement observed. However, the addition of AVG resulted in decreased thermal, mechanical, and water resistance properties compared to composites without AVG. FTIR analysis demonstrated interactions between AVG and the matrix materials. In degradation tests, composites subjected to an alkali environment (P = 11.96) showed the highest weight reduction (2.22 %) compared to those without AVG. Similarly, composites buried in soil exhibited greater weight loss (2.38 %) than their counterparts lacking AVG. Overall, the developed composite's reduced heat transfer rate suggests its potential application as an insulating material in environments such as rural poultry housing and the automotive industry.
在本研究中,将芦荟凝胶(AVG)与黄麻-棉混纺织物一起加入不饱和聚酯树脂(UPR)中,以制备部分可生物降解的复合材料。这些复合材料采用手糊工艺制备,并通过傅里叶变换红外光谱(FTIR)、热重分析(TGA)、热导率测量、吸水性测试、降解评估、抗裂测试和万能试验机(UTM)分析进行表征。研究发现,增加复合材料中AVG的百分比会导致热导率降低,表明绝缘性能得到改善。用AVG增强的样品显示出对铁钉损伤的抵抗力增强,观察到划痕和纤维位移减少。然而,与不含AVG的复合材料相比,添加AVG导致热性能、机械性能和耐水性下降。FTIR分析表明AVG与基体材料之间存在相互作用。在降解测试中,与不含AVG的复合材料相比,处于碱性环境(P = 11.96)中的复合材料重量减少最多(2.22%)。同样,埋在土壤中的复合材料比不含AVG的复合材料表现出更大的重量损失(2.38%)。总体而言,所开发复合材料降低的传热速率表明其在农村家禽养殖舍和汽车工业等环境中作为绝缘材料的潜在应用。