发布时间 : 星期二 文章武汉理工大学材料概论期末试卷更新完毕开始阅读
nd a wide range of Tm and Tg values. They have moderate to high tensile strengths, and ultimate elongation [2’].
iv. Rigid plastics: have high moduli and moderate to high tensile strengths, they undergo very small elongations before rupturing