Effect of inorganic fillers on natural rubber latex foam vulcanisates

IF 1.2 4区化学 Q4 POLYMER SCIENCE Journal of Rubber Research Pub Date : 2024-02-27 DOI:10.1007/s42464-024-00240-y

Shera Mathew, K. M. Malu, Siby Varghese, Parvathy S. Kumar, N. Vaishak

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Abstract

The focus of this study is on the evaluation of the effect of different types of inorganic fillers on the different major properties of natural rubber latex (NRL) foam vulcanisates. The mechanical and chemical properties of filled NRL foam were evaluated and compared with unfilled vulcanisate as per BIS standards IS 1741:2019 and IS: 6664 (1992) RA 2004 specification. The different fillers at various loadings selected for this study were marble powder, talc and China clay. From this study, talc was found to impart good mechanical properties such as indentation hardness index, flexing properties, compression set at constant strain and stress and split tear strength. It was also found that the chemical properties such as ageing resistance and water absorption properties for talc-filled foam were found to be equivalent to NRL foam without filler. Amongst the fillers studied talc possesses better mechanical and chemical properties followed by marble powder and China clay. Scanning electron microscope (SEM) image analysis of NRL foam at 500 μm scale with talc is self-explanatory to the above-mentioned facts.

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无机填料对天然橡胶胶乳泡沫硫化弹性体的影响

摘要本研究的重点是评估不同类型的无机填料对天然橡胶胶乳（NRL）泡沫硫化胶不同主要特性的影响。根据 BIS 标准 IS 1741:2019 和 IS: 6664 (1992) RA 2004 规范，对填充的 NRL 泡沫的机械和化学特性进行了评估，并与未填充的硫化胶进行了比较。本研究选择了不同填充量的大理石粉、滑石粉和中国粘土。研究发现，滑石粉具有良好的机械性能，如压痕硬度指数、弯曲性能、恒定应变和应力下的压缩永久变形以及劈裂撕裂强度。研究还发现，滑石粉填充泡沫的耐老化性和吸水性等化学特性与不含填料的 NRL 泡沫相当。在所研究的填充物中，滑石具有更好的机械和化学特性，其次是大理石粉和中国粘土。对含有滑石粉的 NRL 泡沫进行 500 μm 尺寸的扫描电子显微镜（SEM）图像分析，不言自明上述事实。

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来源期刊

Journal of Rubber Research 化学-高分子科学

自引率

15.40%

发文量

审稿时长

3 months

期刊介绍： The Journal of Rubber Research is devoted to both natural and synthetic rubbers, as well as to related disciplines. The scope of the journal encompasses all aspects of rubber from the core disciplines of biology, physics and chemistry, as well as economics. As a specialised field, rubber science includes within its niche a vast potential of innovative and value-added research areas yet to be explored. This peer reviewed publication focuses on the results of active experimental research and authoritative reviews on all aspects of rubber science. The Journal of Rubber Research welcomes research on: the upstream, including crop management, crop improvement and protection, and biotechnology; the midstream, including processing and effluent management; the downstream, including rubber engineering and product design, advanced rubber technology, latex science and technology, and chemistry and materials exploratory; economics, including the economics of rubber production, consumption, and market analysis. The Journal of Rubber Research serves to build a collective knowledge base while communicating information and validating the quality of research within the discipline, and bringing together work from experts in rubber science and related disciplines. Scientists in both academia and industry involved in researching and working with all aspects of rubber will find this journal to be both source of information and a gateway for their own publications.