| 聚苯乙烯及其橡胶增韧聚合物的断裂韧性 |
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| 引用本文： | 吕锡慈,刘荣进,孙全生,钱汝正,李兰.聚苯乙烯及其橡胶增韧聚合物的断裂韧性[J].高分子学报,1984,0(4):253-258. |
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| 作者姓名： | 吕锡慈 刘荣进 孙全生 钱汝正 李兰 |
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| 作者单位： | 中国科学技术大学应用化学系，中国科学技术大学近代力学系，中国科学技术大学近代力学系，中国科学技术大学应用化学系，中国科学技术大学近代力学系 77级学生 |
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| 摘 要： | 用单边缺口法测定了聚苯乙烯(PS)和两种橡胶增韧PS(HIPS-A,10％橡胶,机械共混;HIPS-B,6.5％橡胶,接技共聚)裂纹在亚临界和失稳扩展时的断裂韧性K_c(s)、K_c(f)。实验结果表明,在限制裂纹尺寸范围之后,可用一般单边缺口拉伸方法测定橡胶增韧塑料HIPS的断裂韧性。
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| 收稿时间： | 1982-09-21 |
THE FRACTURE TOUGHNESS OF PS AND RUBBER TOUGHENED PS |
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| Lu Xi-ci,Sun Quan-shen,Qian Ru-zhen,Liu Rong-jin,Li Lan.THE FRACTURE TOUGHNESS OF PS AND RUBBER TOUGHENED PS[J].Acta Polymerica Sinica,1984,0(4):253-258. |
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| Authors: | Lu Xi-ci Sun Quan-shen Qian Ru-zhen Liu Rong-jin Li Lan |
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| Institution: | Department of Applied Chemistry; The University of Science and Technology of China; Department of Mechanics; The University of Science and Technology of China |
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| Abstract: | The Kc(s) and K,(f) values, the fracture toughness of subcritical and unstable crack propagation, of PS and two types of HIPS (HIPS-A, a blend of PS with 10% rubber; HIPS-B, graft polymer of styrene with 6.5% rubber) were determined by using single edge notched samples. The experimental results showed that after limiting the crack length to a narrow range, the linear elastic fracture mechanics may be used to determine the Kc value of HIPS. |
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