Properties of Natural Rubber Filled with Ultra Fine Acrylate Rubber Powder

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

Journal of Elastomers and Plastics Pub Date : 2010-03-01 DOI:10.1177/0095244310362733

P. Sae-oui, C. Sirisinha, K. Hatthapanit

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引用次数: 6

Abstract

Properties of natural rubber (NR) filled with various loadings of ultra-fine vulcanized acrylate rubber powder (ACMP) were investigated. ACMP loading was varied from 0 to 20 phr and, after compounding, the compound properties were determined. Results reveal that increasing ACMP loading leads to improved processability, as evidenced by the reduction of both mixing energy and Mooney viscosity. ACMP, however, has negative effect on cure, that is, both scorch time and optimum cure time are prolonged while the state of cure is reduced with increasing ACMP loading. Due to the reinforcing effect of the fine ACMP particles, both modulus and hardness are found to increase consecutively with increasing ACMP loading. The tensile strength is also found to improve with increasing ACMP loading up to 10 phr. However, due to the cure retardation effect and the high thermoplastic nature, the presence of ACMP causes deterioration of elasticity. As ACMP is highly polar and fully saturated, the addition of ACMP enhances the resistance to oil and thermal aging of the NR vulcanizate. Significant improvement of thermal aging resistance is found when 10 phr or more of ACMP is added.

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超细丙烯酸酯胶粉填充天然橡胶的性能研究

研究了不同掺量的超细硫化丙烯酸酯胶粉(ACMP)填充天然橡胶的性能。ACMP的添加量从0到20 phr不等，配制后测定了化合物的性能。结果表明，增加ACMP载荷可提高加工性能，混合能和穆尼粘度均有所降低。ACMP对固化有负面影响，随着ACMP负荷的增加，焦化时间和最佳固化时间延长，固化状态降低。由于ACMP颗粒的增强作用，随着ACMP加载量的增加，材料的模量和硬度呈连续增加趋势。抗拉强度也随着ACMP载荷的增加而提高，最高可达10 phr。然而，由于ACMP的固化延迟效应和高热塑性，导致其弹性恶化。由于ACMP的高极性和充分饱和，ACMP的加入提高了NR硫化胶的耐油性和耐热老化性。当ACMP的加入量大于等于10 phr时，其耐热老化性能得到了显著改善。

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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.