共查询到19条相似文献,搜索用时 62 毫秒
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研究了环氧化天然橡胶的塑炼,混炼,挤出及加工流变性能。结果表明,ENR的加工性能与天然橡胶相近,只是塑炼效果胶NR稍差。ENR混炼生热较低,吃粉速度较快,虽然挤出口型膨胀率大于NR,但挤出物外观与NR相当。 相似文献
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研究环氧化天然橡胶(ENR)在全钢载重子午线轮胎胎面胶中的应用。结果表明:用ENR部分取代天然橡胶(NR),胶料的门尼粘度增大,焦烧时间延长,强伸性能略有下降,抗湿滑性能显著改善,耐磨陛能提高,压缩生热略有升高。 相似文献
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《国际聚合物材料杂志》2012,61(3-4):241-254
Abstract The paper reports on the curing characteristics and mechanical properties of oil palm wood flour (OPWF) reinforced epoxidized natural rubber (ENR) composites. Three sizes of OPWF at different filler loadings were compounded with a two roll mill. The cure (t 90) and scorch times of all filler size decrease with increasing OPWF loading. Increasing OPWF loading in ENR compound resulted in reduction of tensile strength and elongation at break but increased tensile modulus, tear strength and hardness. The composites filled with smaller OPWF size showed higher tensile strength, tensile modulus and tear strength. Scanning electron microscope (SEM) micrographs showed that at lower filler loading the fracture of composites occurred mainly due to the breakage of fibre with minimum pull-out of fibres from the matrix. However as the filler loading is increased, the fibre pull-out became very prominent due to the lack of adhesion between fibre and rubber matrix. 相似文献
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