Properties of compatibilised kenaf-filled recycled high-density polyethylene/natural rubber blends under natural weathering condition

IF 1.2 4区化学 Q4 POLYMER SCIENCE

Journal of Rubber Research Pub Date : 2023-02-28 DOI:10.1007/s42464-023-00194-7

Cao Xuan Viet, Abdulhakim Masa, Raa Khimi Shuib, Hanafi Ismail, Nabil Hayeemasae

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Abstract

In this study, a novel polymeric blend was developed using recycled high-density polyethylene (rHDPE) and natural rubber (NR), along with kenaf fibre as a natural filler. In addition, the blends were compatibilised by maleic anhydride-grafted polyethylene (MAPE) and maleic anhydride-grafted natural rubber (MANR). In addition, this study focussed on the material’s properties after the natural weathering test. Results indicated that the tensile properties dropped over the period of natural weathering due to the chain scission of polymeric backbones and the degradation of kenaf fibre. It was found that the retention of properties after natural weathering was higher over the addition of kenaf fibre. When considering the tensile strength, adding only 10 phr of kenaf enabled to increase the retention up to 25% higher than the unfilled counterpart. However, the retained properties were limited for the blends with the addition of compatibilisers. Adding compatibilisers might speed up the degradation of the blends due to its tendency to promote degradation. This is very useful for plastic manufacturers to consider this material a choice either to act as a performance booster or a pro-degradant.

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相容红麻填充再生高密度聚乙烯/天然橡胶共混物在自然老化条件下的性能

在这项研究中，利用再生高密度聚乙烯(rHDPE)和天然橡胶(NR)，以及红麻纤维作为天然填料，开发了一种新型聚合物共混物。此外，共混物还被马来酸酐接枝聚乙烯(MAPE)和马来酸酐接枝天然橡胶(MANR)增容。此外，本研究重点研究了材料经过自然风化试验后的性能。结果表明，在自然风化过程中，高分子骨架的断裂和红麻纤维的降解导致材料的拉伸性能下降。结果表明，与添加红麻纤维相比，自然风化后的性能保留率更高。当考虑拉伸强度时，仅添加10 phr的红麻就能使保留率比未填充的高25%。然而，加入增容剂后，共混物的保留性能受到限制。添加增容剂可能会加速共混物的降解，因为它有促进降解的倾向。这是非常有用的塑料制造商考虑这种材料的选择，要么作为一个性能助推器或促降解。

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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.