| 两类增韧HDPE的力学性能及熔体流动性 |
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| 引用本文： | 白娟,樊卫华,周俊峰,宫瑾,王经武. 两类增韧HDPE的力学性能及熔体流动性[J]. 工程塑料应用, 2005, 33(6): 15-18 |
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| 作者姓名： | 白娟 樊卫华 周俊峰 宫瑾 王经武 |
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| 作者单位： | 郑州大学材料科学与工程学院,郑州,450052;郑州大学材料科学与工程学院,郑州,450052;郑州大学材料科学与工程学院,郑州,450052;郑州大学材料科学与工程学院,郑州,450052;郑州大学材料科学与工程学院,郑州,450052 |
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| 摘 要： | 以高密度聚乙烯(HDPE)为基体树脂、(乙烯／丙烯)共聚物和丁苯橡胶为增韧剂制得增韧母料(E-TMB)。分别采用将E-TMB与HDPE热机械共混和将(乙烯／丙烯)共聚物、丁苯橡胶与HDPE简单共混的方法制备了HDPE／E-TMB及HDPE／弹性体两类增韧HDPE。结果表明，HDPE／E-TMB的悬臂梁缺口冲击强度的提高幅度、拉伸屈服应力保持率均显著优于HDPE／弹性体，二者的弯曲弹性模量保持率基本相同；HDPE／E-TMB的熔体流动速率比HDPE／弹性体的小，但仍适宜于注射成型和挤出成型。
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| 关 键 词： | 增韧 高密度聚乙烯 (乙烯/丙烯)共聚物 丁苯橡胶 母料 力学性能 熔体流动速率 |
| 修稿时间： | 2005-04-01 |
MECHANICAL PROPERTIES AND MELT-FLOWABILITY OF TWO KINDS OF TOUGHENED HDPE |
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| BAI Juan,Fan Weihua,Zhou Junfeng,GONG Jin,Wang Jingwu. MECHANICAL PROPERTIES AND MELT-FLOWABILITY OF TWO KINDS OF TOUGHENED HDPE[J]. Engineering Plastics Application, 2005, 33(6): 15-18 |
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| Authors: | BAI Juan Fan Weihua Zhou Junfeng GONG Jin Wang Jingwu |
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| Abstract: | Two kinds of toughened high density polyethylene (HDPE) were prepared. One HDPE E-TMB was made through thermal mechanical blending HDPE with E toughening master batch (E-TMB) synthesized from HDPE as matrix resin, ethylene propylene copolymer(M) and butadiene-styrene rubber(N) as toughening agents. Another HDPE elastomer was produced by simply blending HDPE with M and N. The results showed that the notched Izod impact strength and conservation rate of tensile yield stress of HDPE E-TMB were markedly superior to those of HDPE elastomer, while the conservation rate of elastic modulus in bending of HDPE E-TMB and HDPE elastomer was nearly the same. The melt folw rate(MFR) of HDPE E-TMB was lower than that of HDPE elastomer, but it was still in the range of MFR fitting for injection and extrusion molding. |
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| Keywords: | toughening high density polyethylene ethylene propylene copolymer butadiene-styrene rubber masterbatch mechanical property melt flow rate |
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