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通过HDPE/LDPE/SBS三元复合,可制得高耐开裂聚烯烃高分子合金复合材料。至目前,对本课题所涉及的上述复合材料的加工流变性能的研究尚未见报导。通常研究这一类复合材料时,多半应用幂律型非牛顿指数方程,但是所得到的流变参数很难反映这种复材料流变过程的内在机理,因此本文着重使用JRG流变本构方程来研究HDPE/LDPE/SBS三元复合体系的流变机制,并与幂律方程的结果作了系统的对比,其结果表明,由JRG方程得到3个流变参数ΔE0、α、β更好地反映了这种复合材料的流变性能,为加工应用这种材料提供了理论依据。其中2#、10#样品流变性能最好,4#、6#样品同时具有较好的流变加工性和耐环境应力开裂性。
By HDPE / LDPE / SBS ternary complex, can be made of high resistance to cracking polyolefin polymer composites. Up to now, no research has been reported on the rheological properties of the above composites involved in this project. Usually when studying this kind of composites, most of the power-law non-Newtonian exponential equations are applied, but the rheological parameters obtained are hard to reflect the intrinsic mechanism of the rheological process. Therefore, this paper focuses on the JRG rheological constitutive equation The rheological mechanism of the HDPE / LDPE / SBS ternary composite system was studied and compared with the power law equation. The results show that the three rheological parameters ΔE0, α, β obtained from the JRG equation are better Reflect the rheological properties of this composite materials, processing and application of this material provides a theoretical basis. The rheological properties of 2 # and 10 # samples are the best, while the samples of 4 # and 6 # have better rheological processability and environmental stress cracking resistance.