In this study, the outstanding toughness effect and corresponding mechanism of poly(methyl methacrylate)-polybutadiene-polystyrene (MBS) on polyamide 1012 (PA1012) was studied. Both physical entanglement and chemical crosslinking which exist between MBS particle and PA1012 to improve the interface and contribute to the stress transfer were confirmed by rheology characterization. Herman's orientation function based on in situ wide angle X-ray diffraction certified MBS particles weaken the loading stress of matrix as stress concentration points by during the tensile deformation. It was found that MBS particles were conducive to crystallization to maintain the strength, and the transformation of more toughness γ-form from α-form. The syngenetic effects demonstrated substantially-high toughness as well as maintained the original strength.

在这项研究中，研究了聚（甲基丙烯酸甲酯）-聚丁二烯-聚苯乙烯（MBS）在聚酰胺1012（PA1012）上的杰出的韧性效果和相应的机理。流变学表征证实了MBS颗粒与PA1012之间存在物理缠结和化学交联，以改善界面并有助于应力转移。基于原位广角X射线衍射认证的MBS颗粒的Herman取向函数在拉伸变形过程中减弱了应力集中点时基体的加载应力。发现MBS颗粒有利于保持强度的结晶，并从α转变出更多韧性的γ-形-形成。共生作用显示出相当高的韧性，并保持了原始强度。