用于轻质应用的玄武岩粉基热固性和热塑性复合材料

IF 2.6 4区 化学 Q3 POLYMER SCIENCE
Praveenkumara Jagadeesh, Sanjay Mavinkere Rangappa, Vincenzo Fiore, Hom Nath Dhakal, Suchart Siengchin
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引用次数: 0

摘要

聚合物产品不断引发的环境问题促使人们使用环保型玄武岩作为复合材料制造的增强材料。玄武岩增强材料具有无毒、易于加工、经济、危害小、热性能和机械性能优异等优点。将玄武岩添加到不同的聚合物基质中确实是一个比较新颖的概念,可能会带来一些非常有趣的观点,这些观点尚未得到充分探索。玄武岩粉末等矿物填料能够减少聚合物产品中的聚合物比例,并保持其原有特性,这有助于建立无污染的生态系统和稳定生态问题。在此背景下,目前的研究旨在制造和表征以相同重量含量(即 30%)的玄武岩粉末为增强材料的热固性(即合成环氧树脂、生物环氧树脂、不饱和聚酯和乙烯基酯)和热塑性(即聚乳酸、生物基聚丙烯和生物基高密度聚乙烯)复合材料。对这些复合材料进行了物理、机械、润湿性(接触角分析)、形态和吸水性研究。此外,还对玄武岩粉末进行了元素分析(能量色散 X 射线)、颗粒尺寸分析和形态观察(扫描电子显微镜)。实验结果表明,与纯聚合物相比,复合材料的抗拉、抗弯和抗冲击强度特性略有降低,这是因为增强了聚合物。此外,由于填料的作用,拉伸模量、弯曲模量和硬度值逐渐提高。吸水性增加的主要原因是复合材料内部的空隙为水分渗入界面创造了必要的环境。差示扫描量热分析表明,尽管通过减少 30 wt%的聚合物而加入了玄武岩,但填料成功地保持了链松弛,减少了分子运动,达到了相当于 100% 聚合物体系的稳定性。除合成环氧树脂复合材料外,其余聚合物复合材料的热导率值均高于纯聚合物。不过,对于轻质和环保方面的应用前景来说,这些研究结果还是令人满意的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Basalt powder based thermoset and thermoplastic composites for lightweight applications

Basalt powder based thermoset and thermoplastic composites for lightweight applications

Basalt powder based thermoset and thermoplastic composites for lightweight applications

The continuous raise of environmental issues by the polymer products has led to the use of eco-friendly basalt as a reinforcement for the composites fabrication. Basalt reinforcement has attractive qualities such as non-toxicity, ease of processing steps, economical, less harmful, and excellent thermal, and mechanical properties. Basalt loading into different polymer matrices is indeed a comparably novel concept that may offer some very intriguing views, which have not yet been fully explored. The ability of mineral fillers such as basalt powder to reduce the polymer portion in polymer goods by retaining their original characteristics hand out to the establishment of a pollution-free ecosystem and the stabilizing of ecological issues. In this context, the current research aims to manufacture and characterize thermoset (i.e., synthetic epoxy, bio-epoxy, unsaturated polyester, and vinyl ester) and thermoplastic (i.e., polylactic acid, bio-based polypropylene, and bio-based high density polyethylene) composites reinforced with the same weight content (i.e., 30%) of basalt powder. These composites were employed for physical, mechanical, wettability (contact angle analysis), morphological, and water absorption investigations. Moreover, basalt powder was subjected to elemental analysis (Energy dispersive X-ray), particle dimensional analysis, and morphological (Scanning Electron Microscopy) observations. The experimental results revealed that the tensile, flexural, and impact strength characteristics of composites were slightly reduced in comparison to neat polymers because of higher reinforcement. Besides, the tensile modulus, flexural modulus, and hardness values were gradually improved due to the filler effect. The increased water absorption is mainly caused by the voids inside of the composites, which create the quintessential environment for moisture to seep into the interface. Differential scanning calorimetry analysis reveals that the filler has successfully maintained the chain relaxation with the reduction of molecular movement and achieved stability as equivalent to a 100% polymer system, despite the incorporation of basalt by reducing the 30 wt% polymers. Except for synthetic epoxy composite, the remaining polymer composites have shown enhanced thermal conductivity values than neat polymers. However, the obtained findings can be considered satisfactory for prospective applications concerning lightness and environmental friendliness.

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来源期刊
Journal of Polymer Research
Journal of Polymer Research 化学-高分子科学
CiteScore
4.70
自引率
7.10%
发文量
472
审稿时长
3.6 months
期刊介绍: Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including: polymer synthesis; polymer reactions; polymerization kinetics; polymer physics; morphology; structure-property relationships; polymer analysis and characterization; physical and mechanical properties; electrical and optical properties; polymer processing and rheology; application of polymers; supramolecular science of polymers; polymer composites.
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