Effects of Epoxidized Natural Rubber on Gas Barrier and Mechanical Properties of NR/BIIR Composites

IF 1.4 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Elastomers and Plastics Pub Date : 2011-03-14 DOI:10.1177/0095244311400502

Karoon Jiamjitsiripong, C. Pattamaprom

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引用次数: 15

Abstract

The mechanical properties and gas permeability of natural rubber/bromobutyl rubber blends were investigated when using epoxidized natural rubber (ENR) as a compatibilizer. The blend composites used in this study were composites of commercial precipitated silica. Several types of layered silicates were investigated here as secondary fillers due to their high-aspect ratio platelet structures, which could help delaying the gas permeation rate. These fillers include talcum, montmorillonite clay, and kaolinite clay. We found that, ENR could promote faster cure and could improve the mechanical properties, compression set, and abrasion resistance of the composites with significant improvement in its gas barrier property. Among different types of fillers, talcum could provide superior gas barrier property to other types of fillers, even though the strength and modulus of talcum composite were still inferior to those of other composites. However, the addition of ENR to talcum composite did not further improve its gas barrier property further, though it could improve the other properties.

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环氧化天然橡胶对NR/BIIR复合材料气密性及力学性能的影响

以环氧化天然橡胶(ENR)为相容剂，研究了天然橡胶/溴丁基橡胶共混物的力学性能和透气性。本研究中使用的共混复合材料是商用沉淀二氧化硅的复合材料。本文研究了几种层状硅酸盐作为二次填料，因为它们具有高纵横比的血小板结构，可以帮助延缓气体的渗透速度。这些填料包括滑石粉、蒙脱石粘土和高岭石粘土。我们发现，ENR可以促进复合材料的快速固化，提高复合材料的力学性能、压缩集定性和耐磨性，并显著改善其隔气性能。在不同类型的填料中，尽管滑石复合材料的强度和模量仍不如其他复合材料，但滑石的隔气性能优于其他类型的填料。然而，在滑石复合材料中添加ENR并没有进一步改善其隔气性能，尽管它可以改善其他性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Elastomers and Plastics 工程技术-材料科学：综合

CiteScore

3.30

自引率

5.90%

发文量

审稿时长

6 months

期刊介绍： The Journal of Elastomers and Plastics is a high quality peer-reviewed journal which publishes original research on the development and marketing of elastomers and plastics and the area in between where the characteristics of both extremes are apparent. The journal covers: advances in chemistry, processing, properties and applications; new information on thermoplastic elastomers, reinforced elastomers, natural rubbers, blends and alloys, and fillers and additives.