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[1]刘治田,赵青,游峰.聚丙烯天然橡胶碳酸钙三元复合材料的力学性能及加工流变行为[J].武汉工程大学学报,2014,(11):37-42.[doi:103969/jissn167428692014011007]
　LIU Zhi tian,ZHAO Qing,YOU Feng.Mechanical properties and rheological behavior of polypropylene/natural rubber/calcium carbonate ternary composites[J].Journal of Wuhan Institute of Technology,2014,(11):37-42.[doi:103969/jissn167428692014011007]
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聚丙烯天然橡胶碳酸钙三元复合材料的力学性能及加工流变行为(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2014年11期
页码:
37-42
栏目:
材料科学与工程
出版日期:
2014-11-30

文章信息/Info

Title:
Mechanical properties and rheological behavior of polypropylene/natural rubber/calcium carbonate ternary composites
文章编号:
16742869(2014)011003706
作者:
刘治田; 赵青; 游峰
武汉工程大学材料科学与工程学院，湖北 武汉 430074
Author(s):
LIU Zhitian; ZHAO Qing; YOU Feng
School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430074, China
关键词:
直接共混法; 包覆法; 三元复合材料; 力学性能; “核壳”复合分散相
Keywords:
onepot method;  encapsulation method;  ternary composites;  mechanical properties;  “coreshell” composite dispersed phase
分类号:
TQ325.1+4
DOI:
103969/jissn167428692014011007
文献标志码:
A
摘要:
利用直接共混法和包覆法两种方法制备了聚丙烯/天然橡胶/超细碳酸钙三元复合材料，研究了弹性体及碳酸钙的质量分数对聚丙烯力学性能和加工流变行为的影响.力学实验结果表明同等质量分数下天然橡胶对聚丙烯力学强度的降低程度要小于三元乙丙橡胶.而碳酸钙的最佳质量分数为25%，此时聚丙烯/天然橡胶/碳酸钙三元复合体系具有最高的拉伸强度和冲击强度，复合体系的弯曲模量相对于聚丙烯/天然橡胶二元体系提高了57.1%.另外，直接共混物法和包覆法对聚丙烯力学性能的影响呈现不同的趋势，天然橡胶与碳酸钙直接共混法对聚丙烯力学强度的保持效果要优于包覆法，而采用天然橡胶包覆碳酸钙的方法对聚丙烯的增韧效果要优于直接共混法.最后哈克转矩流变测试表明天然橡胶及碳酸钙的加入可以降低聚丙烯的平衡扭矩.
Abstract:
Polypropylene/natural rubber/calcium carbonate ternary composites were prepared by onepot and encapsulation methods. The effect of elastomer and calcium carbonate on the mechanical and rheological properties of ploypropylene was investigated. The mechanical results revealed that the decrease of mechanical strength of ploypropylene caused by natural rubber is lower than that of ethylenepropylenediene rubber. The optimum weight fraction of calcium carbonate content is 25% for ploypropylene/natural rubber/calcium carbonate ternary composites, the tensile strength and impact strength of ternary composites are highest and the flexural modulus of ploypropylene/natural rubber blends is increased by 57.1% when the calcium carbonate content is 25%. In addition, the effect of onepot and encapsulation methods on the mechanical properties of ploypropylene is different. The tensile strength of ploypropylene/natural rubber/calcium carbonate fabricated by onepot method is higher compared with encapsulation method, while encapsulation method has better toughening effect than that of onepot method. Finally, the Haake torque rheological measurement indicated the incorporation of nature rubber and calcium carbonate can decrease the equilibrium torque of ploypropylene.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20140616基金项目：国家自然科学基金项目（51003080）；武汉市青年科技晨光计划项目（201271031385）；湖北省自然科学基金项目（2012FFB04705）；武汉工程大学研究生创新基金项目作者简介：刘治田（1981），男，湖北黄冈人，教授，博士.研究方向：功能高分子.
更新日期/Last Update: 2014-12-09