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

【摘要】：隨著科技的進(jìn)步,人們對(duì)材料性能的要求越來越高,夾層結(jié)構(gòu)誕生于20世紀(jì)40年代,憑借其高比強(qiáng)度、高比模量、抗震動(dòng)性能和耐疲勞性能優(yōu)異,兼具優(yōu)異的吸能特性,在結(jié)構(gòu)材料方面具有廣泛的應(yīng)用。夾芯結(jié)構(gòu)通過適當(dāng)?shù)慕饘倩驑渲鶑?fù)合材料面板,芯材和粘接劑復(fù)合形成。這種結(jié)構(gòu)已被廣泛應(yīng)用于航空航天領(lǐng)域、航海領(lǐng)域、汽車領(lǐng)域等。隨著高分子材料的不斷發(fā)展,夾層結(jié)構(gòu)的面板材料之一,纖維增強(qiáng)樹脂基復(fù)合材料層合板的應(yīng)用也越來越廣泛,由此帶來的火災(zāi)隱患和火災(zāi)危害成為人們關(guān)注的重要問題。本文以艦船復(fù)合材料為應(yīng)用背景,選擇玻璃纖維增強(qiáng)環(huán)氧改性樹脂基和普通環(huán)氧樹脂基復(fù)合材料層合板作為面板材料,閉孔泡沫鋁作為芯材,對(duì)此夾層結(jié)構(gòu)材料的阻燃和力學(xué)特性展開研究。主要內(nèi)容包括:運(yùn)用傳熱學(xué)方法,探究高分子復(fù)合材料火災(zāi)燃燒特性,針對(duì)金屬泡沫結(jié)構(gòu)特點(diǎn),表征閉孔泡沫鋁的有效熱導(dǎo)率。運(yùn)用落錘試驗(yàn)儀,研究夾芯結(jié)構(gòu)抗低速?zèng)_擊性能。利用錐形量熱儀(CONE)探究?jī)煞N不同面板夾芯結(jié)構(gòu)的阻燃特性。探究夾芯結(jié)構(gòu)單面過火后的剩余結(jié)構(gòu)的抗低速?zèng)_擊性能,并與未受熱損傷的結(jié)構(gòu)的性能相比較,探究結(jié)構(gòu)在火災(zāi)中的安全性。研究結(jié)果表明,改性面板夾芯結(jié)構(gòu)的能有效延長(zhǎng)結(jié)構(gòu)的點(diǎn)燃時(shí)間,降低燃燒過程的熱釋放和煙氣釋放量.兩種夾芯結(jié)構(gòu)過火前后都具有很好的吸能特性,對(duì)比pvc泡沫夾芯結(jié)構(gòu),泡沫鋁夾芯結(jié)構(gòu)阻燃性能和對(duì)火力學(xué)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(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TB383.4;TB33

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本文編號(hào)：1985363