The results show the tensile strength, yield strength, hardness and elongation increased obviously due to the decreasing of the grain size of pure Cu after severe plastic deformation.
研究结果表明：经过大变形后，由于纯铜的晶粒得以细化，抗拉强度、屈服强度、硬度和断裂延伸率都显著增加。
With the increasing of mass fraction of PEG, membrane porosity and pure water flux become larger, and the maximum tensile strength and elongation at break of the membrane criterion decrease gradually.
随着PEG质量分数的增加，膜孔隙率与水通量变大，最大拉伸强度、断裂伸长率等力学性能逐渐减小。
The tensile strength and elongation at break were greatly increased by adding PPC. The properties of oil resistance and heat stability of PPC/NBR elastomers are as good as pure NBR elastomer.
PPC存在使NBR扯断强力，扯断伸长率大幅度提高，PPC/NBR弹性体具有优良的耐油及耐热氧化老稳定性。
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