高阻尼丙烯酸橡胶/滑动接枝共聚物复合材料的研制

Development of high damping acrylic rubber/sliding graft copolymer composites.

作者信息

Wang Junjun, Wang Wencai, Geng Xiaoyan, Nishi Toshio, Zhao Xiuying, Zhang Liqun

机构信息

Beijing Engineering Research Center of Advanced Elastomer Beijing P. R. China.

Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology Beijing 100029 P. R. China

出版信息

RSC Adv. 2018 Oct 24;8(63):36172-36180. doi: 10.1039/c8ra04644a. eCollection 2018 Oct 22.

DOI:10.1039/c8ra04644a

PMID:35558499

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9088517/

Abstract

Aiming at fabricating high damping rubber composites, the acrylic rubber ACM was incorporated with sliding graft copolymer (SGC) materials. SGC is a novel supramolecular material with sliding crosslink junctions, and it acts as a high damping phase in ACM/SGC composites. Fourier transform infrared spectroscopy reveals the presence of two types of hydrogen bonds in ACM/SGC composites. Micro-structure analysis shows a clear sea-island phase structure. SGC particles disperse fairly uniformly in the ACM matrix. A wide interphase region exists between these two phases, indicating the good blend compatibility between ACM and SGC. The damping performance of ACM/SGC composites under dynamic shear strain and frequency condition significantly improved with the increase in SGC content. Specifically, the loss factor (tan ) value of ACM/SGC (100/40) composite increased by 120% compared with that of neat ACM, according to the RPA results. The significantly improved damping property can be ascribed to the interfacial hydrogen bonds and the pulley effect of SGC molecules.

摘要

为了制备高阻尼橡胶复合材料，将丙烯酸橡胶（ACM）与滑动接枝共聚物（SGC）材料复合。SGC是一种具有滑动交联键的新型超分子材料，在ACM/SGC复合材料中作为高阻尼相。傅里叶变换红外光谱表明ACM/SGC复合材料中存在两种类型的氢键。微观结构分析显示出清晰的海岛相结构。SGC颗粒在ACM基体中分散相当均匀。这两相之间存在较宽的界面区域，表明ACM和SGC之间具有良好的共混相容性。随着SGC含量的增加，ACM/SGC复合材料在动态剪切应变和频率条件下的阻尼性能显著提高。具体而言，根据橡胶加工分析仪（RPA）的结果，ACM/SGC（100/40）复合材料的损耗因子（tanδ）值与纯ACM相比提高了120%。显著提高的阻尼性能可归因于界面氢键和SGC分子的滑轮效应。