|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
不同应变速率下纳米橡胶颗粒对环氧树脂的增韧特性与机理分析
DOI: 10.11777/j.issn1000-3304.2015.15022, PP. 1092-1099
Keywords: 纳米橡胶颗粒,环氧树脂,应变速率,断裂韧性,空穴增长
Abstract:
为了解释不同应变速率下纳米橡胶颗粒对环氧树脂基体的增韧机理,制备了质量分数为6%的纳米橡胶颗粒/环氧树脂复合材料,分别测试了该材料在3种低应变速率(5×10-4s-1,1×10-1s-1,2.5×10-1s-1)和高应变速率下(90s-1)的I型平面断裂韧性.结果表明,纳米橡胶颗粒在3种低应变速率下可以显著提高环氧树脂的断裂韧性,提高幅度分别为158%,283%和309%.在高应变速率下,纯环氧树脂的断裂韧性由于动态效应而显著升高,然而纳米橡胶颗粒对环氧基体的增韧效果却不明显,增韧幅度仅为2%.由光学显微镜照片可知,随着应变速率的提高,纳米橡胶颗粒/环氧树脂复合材料断口表面的应力发白区域逐渐较少,甚至在高应变速率(90s-1)下消失.偏光显微镜照片表明,纯环氧树脂与纳米橡胶颗粒/环氧树脂复合材料的裂纹尖端塑性形变尺寸随着应变速率的升高而减小.通过扫描电子显微镜对断口形貌进行分析可知,不同应变速率下纳米橡胶颗粒在环氧基体中空穴增长程度不同,进而导致纳米橡胶颗粒对环氧基体的增韧效果的不同.
| [1] | 1 Jiang Lixiang(姜利祥), He Shiyu(何世禹),Yang Shiqin(杨士勤),Chen Ping(陈平),Sheng Lei(盛磊).Journal of Materials Engineering(材料工程),2001,(9):39~46
|
| [2] | 2 Mangalgiri P D.B Mater Sci,1999,22(3):657~664
|
| [3] | 3 Dransfield K,Baillie C,Mai Y W.Compos Sci Technol,1994,50(3):305~317
|
| [4] | 5 Zhang Baolong(张保龙),Tang Guangliang(唐广粮),You Yingcai(由英才),Shi Keyu(石可瑜).Guo Shuhua(郭淑华),Du Zongjie(杜宗杰),Huang Jifu(黄吉甫).Acta Polymerica Sinica(高分子学报),1999,(1):74~79
|
| [5] | 6 Garg A C,Mai Y W.Compos Sci Technol,1988,31(3):179~223
|
| [6] | 7 Sun Yishi(孙以实),Zhao Shiqi(赵世琪),Lin Xiuying(林秀英),Wang Xiqun(王习群).Acta Polymerica Sinica(高分子学报),1988,(2):101~106
|
| [7] | 8 Han Xiaozu(韩孝族),Wang Lianzhi(王莲芝),Zhao Guoqin(赵国琴),Xiao Gang(肖刚),Zhang Qingyu(张庆余).Acta Polymerica Sinica(高分子学报),1989,(2):225~229
|
| [8] | 9 Williams J G.Compos Sci Technol,2010,70:885~891
|
| [9] | 10 Liang Y L,Pearson R A.Polymer,2010,51:4880~4890
|
| [10] | 14 Huang F,Liu Y Q,Zhang X H,Wei G,Gao J M,Song Z H,Zhang M,Qiao J L.Macromol Rapid Comm,2002,23(13):786~790
|
| [11] | 15 Ma H Y,Wei G S,Liu Y Q,Zhang X,Gao J M,Huang F,Tan B H,Song Z H,Qiao J L.Polymer,2005,46:10568~10573
|
| [12] | 16 Deng S Q,Zhang J N,Ye L,Wu J S.Polymer,2008,49(23):5119~5127
|
| [13] | 20 Gomez-del Rio T,Rodriguez J,Pearson R A.Compos Part B-Eng,2014,57:173~179
|
| [14] | 4 Chang Pengshan(常鹏善),Zuo Ruilin(左瑞霖),Wang Rumin(王汝敏),Chen Lixin(陈立新).Acta Polymerica Sinica(高分子学报),2002,(5):682~684
|
| [15] | 11 Pearson R A,Yee A F.J Mater Sci,1989,24(7):2571~2580
|
| [16] | 12 Liu H Y,Wang G T,Mai Y W,Zeng Y.Compos Part B-Eng,2011,42:2170~2175
|
| [17] | 13 Liu J,Sue H J,Thompson Z J,Bates F S,Dettloff M,Jacob G,Verghese N,Pham H.Acta Mater,2009,57(9):2691~2701
|
| [18] | 17 Low I M,Mai Y W.J Mater Sci,1989,24:1634~1644
|
| [19] | 18 Plati E,Williams J G.Polym Eng Sci,1975,15(6):470~477
|
| [20] | 19 Abadyan M,Khademi V,Bagheri R,Motamedi P,Kouchakzadeh M A,Haddadpour H.J Macromol Sci Phys,2010,49:602~614
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
