CAJ | 학술논문

鉴于黏弹性阻尼材料在建筑结构抗震减震及抗风方面的重要性，以丁腈橡胶为基体、基于DMA法，首先考察了氯化聚丙烯(CPP)、短碳纤维(CARB)、200目石墨粉(GRAP)、鳞片石墨(FLAKE)、云母粉(MICA)等与基体材料共混物的基本力学性能，其次研究了掺合剂对基体材料的影响，并给出了组分比对基体胶阻尼性能的影响效果对比分析。研究结果满足了两个设计要求：1.改进了材料的阻尼性能，使损耗因子提高至1.26；2.使原材料的温位Tg从28.2℃调整至15℃左右，并大大拓展了tanδ>0.5的温域。并且研究发现，单纯添加200目石墨粉的效果最佳，粒径大的炭黑类材料如高耐磨炭黑(FEF)和软质快压出炭黑(HAF)对NBR材料的改进效果不大。
감우점탄성조니재료재건축결구항진감진급항풍방면적중요성，이정정상효위기체、기우DMA법，수선고찰료록화취병희(CPP)、단탄섬유(CARB)、200목석묵분(GRAP)、린편석묵(FLAKE)、운모분(MICA)등여기체재료공혼물적기본역학성능，기차연구료참합제대기체재료적영향，병급출료조분비대기체효조니성능적영향효과대비분석。연구결과만족료량개설계요구：1.개진료재료적조니성능，사손모인자제고지1.26；2.사원재료적온위Tg종28.2℃조정지15℃좌우，병대대탁전료tanδ>0.5적온역。병차연구발현，단순첨가200목석묵분적효과최가，립경대적탄흑류재료여고내마탄흑(FEF)화연질쾌압출탄흑(HAF)대NBR재료적개진효과불대。
In view of the effectiveness and importance of viscoelastic material to seismic resistance and wind-resistant of building structure,with nitrile rubber as substrate,based on DMA means,the effect of mixture such as CPP,short carbon fiber,200 graphite powder,flake graphite,mica powder and et al to the damping performance of NBR is discussed,and the influence of component ratio to the substrate is given.Research results meet two design requirements,firstly,the damping properties of materials was improved,and the loss factor was increased to 1.26,the second,T g is adjusted from 28.2℃ to 1 5℃,and the temperature range which tanδ value is higher than 0.5.The research shows that,just added 200 graphite powder,it achieves the best effect.Improvement of particle size large of carbon black material such as FEF and HAF has little effect.