本文選題：泡沫鋁 + 阻燃特性��； 參考：《哈爾濱工業(yè)大學》2015年碩士論文

【摘要】：隨著科技的進步,人們對材料性能的要求越來越高,夾層結構誕生于20世紀40年代,憑借其高比強度、高比模量、抗震動性能和耐疲勞性能優(yōu)異,兼具優(yōu)異的吸能特性,在結構材料方面具有廣泛的應用。夾芯結構通過適當?shù)慕饘倩驑渲鶑秃喜牧厦姘?芯材和粘接劑復合形成。這種結構已被廣泛應用于航空航天領域、航海領域、汽車領域等。隨著高分子材料的不斷發(fā)展,夾層結構的面板材料之一,纖維增強樹脂基復合材料層合板的應用也越來越廣泛,由此帶來的火災隱患和火災危害成為人們關注的重要問題。本文以艦船復合材料為應用背景,選擇玻璃纖維增強環(huán)氧改性樹脂基和普通環(huán)氧樹脂基復合材料層合板作為面板材料,閉孔泡沫鋁作為芯材,對此夾層結構材料的阻燃和力學特性展開研究。主要內容包括:運用傳熱學方法,探究高分子復合材料火災燃燒特性,針對金屬泡沫結構特點,表征閉孔泡沫鋁的有效熱導率。運用落錘試驗儀,研究夾芯結構抗低速沖擊性能。利用錐形量熱儀(CONE)探究兩種不同面板夾芯結構的阻燃特性。探究夾芯結構單面過火后的剩余結構的抗低速沖擊性能,并與未受熱損傷的結構的性能相比較,探究結構在火災中的安全性。研究結果表明,改性面板夾芯結構的能有效延長結構的點燃時間,降低燃燒過程的熱釋放和煙氣釋放量.兩種夾芯結構過火前后都具有很好的吸能特性,對比pvc泡沫夾芯結構,泡沫鋁夾芯結構阻燃性能和對火力學性能都有顯著的提升。
[Abstract]:With the development of science and technology, the requirement of material properties is higher and higher. Sandwich structure was born in the 1940s. Because of its high specific strength, high specific modulus, excellent vibration resistance and fatigue resistance, it also has excellent energy absorption properties. It is widely used in structural materials. The sandwich structure is formed by a suitable metal or resin matrix composite panel, core and adhesive. This structure has been widely used in aerospace field, navigation field, automobile field and so on. With the continuous development of polymer materials, fiber reinforced resin matrix laminated laminates are more and more widely used as one of the panel materials with sandwich structure. In this paper, glass fiber reinforced epoxy resin matrix and common epoxy resin matrix laminates are selected as panel materials, and closed porous aluminum foam is used as core material. The flame retardancy and mechanical properties of the sandwich materials were studied. The main contents are as follows: using heat transfer method to study the fire combustion characteristics of polymer composites and to characterize the effective thermal conductivity of closed cell aluminum foam according to the structural characteristics of metal foam. The low-speed impact resistance of sandwich structure was studied by using drop-weight tester. The flame-retardant properties of two different panel sandwich structures were investigated by cone calorimeter. In order to explore the safety of sandwich structure in fire, the low velocity impact resistance of the remaining structure after one side overfire was investigated and compared with that of the structure without thermal damage. The results show that the modified panel sandwich structure can effectively prolong the ignition time of the structure and reduce the heat release and flue gas emission during the combustion process. Compared with the pvc foam sandwich structure, the flame retardancy and the fire mechanical properties of the aluminum foam sandwich structure were significantly improved.
【學位授予單位】：哈爾濱工業(yè)大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TB383.4;TB33

【參考文獻】

相關期刊論文 前4條

1 沈觀林;;復合材料力學[J];玻璃鋼;1996年02期

2 鳳儀,朱震剛,陶寧,鄭海務;閉孔泡沫鋁的導熱性能[J];金屬學報;2003年08期

3 郭小汾,楊雪蓮,陳勇,謝克昌;垃圾中可燃物的燃燒動力學研究[J];燃料化學學報;1999年01期

4 范維澄 ,汪前喜;火災科學概論[J];現(xiàn)代物理知識;1992年05期

相關碩士學位論文 前1條

1 方露;表面阻燃型木塑復合材料的研究[D];南京林業(yè)大學;2011年

，

本文編號：1985363