Design of high impact thermal plastic polymer composites with balanced toughness and rigidity: Toughening with one phase modifier
Design of high impact thermal plastic polymer composites with balanced toughness and rigidity: Toughening with one phase modifier
复制标题
韧性和刚性平衡的高抗冲热塑性聚合物复合材料的设计：用一相改性剂增韧
DOI：
10.1016/j.polymer.2019.03.004
复制
发表时间：
2019-04-29
期刊：
影响因子：
4.6
通讯作者：
Jiang, Wei
中科院分区：
文献类型：
--
作者：
Li, Fushi;Gao, Yunbao;Jiang, Wei
基于Takayanagi的两相模型和脆塑转变方程，我们建立了复合材料模量E-c与改性剂模量E-d、改性剂含量phi、改性剂粒径d和颗粒间距离ID等相关参数之间的关系，从而确定了一相改性剂颗粒增韧复合材料的刚度和韧性。根据这一关系，我们可以定量研究临界脆塑转变点处复合材料模量对E-d、phi、d和ID的影响，从而为通过优化这些参数来设计韧性和刚度平衡的复合材料提供理论指导。结果表明，较低的临界颗粒间距离 (IDc) 会导致橡胶或弹性体增韧聚合物复合材料的刚度大幅损失。这是高刚度高抗冲聚丙烯（HIPP）复合材料较难获得的主要原因。
Based on Takayanagi's two-phase model and the brittle-ductile transition equations, we established a relation between the composite modulus E-c and related parameters including modifier modulus E-d, modifier content phi, modifier particle size d and interparticle distance ID, which determined the stiffness and toughness of the composite toughened with one phase modifier particle. From this relation, we can quantitatively study how the composite modulus depends on E-d, phi, d, and ID at the critical brittle-ductile transition point, and thereby can give the theoretic guidance for designing the composite with balanced toughness and rigidity by optimizing these parameters. The results show that lower critical interparticle distance (IDc) leads to a great loss of the stiffness for rubber or elastomer toughened polymer composites. This is a main reason that the high impact polypropylene (HIPP) composites with high stiffness is more difficult to be obtained.