建筑外墻保溫膩?zhàn)拥难兄?/H1>
發(fā)布時(shí)間：2018-10-29 15:28
【摘要】：建筑節(jié)能已經(jīng)成為我國(guó)節(jié)能工作中一個(gè)重要的組成部分,使用外墻保溫材料是目前實(shí)現(xiàn)建筑節(jié)能最主要的措施,保溫膩?zhàn)邮墙陙?lái)研究較為廣泛的一種新型外墻隔熱保溫材料。它具有干密度小、導(dǎo)熱系數(shù)較低,并且抗老化、耐候性好、配料簡(jiǎn)單、防火性能優(yōu)異、成本低、施工方便等特點(diǎn)。 本文首先深入地分析了粉煤灰漂珠的礦物組成和物理性能,并通過(guò)正交實(shí)驗(yàn)探究了粉煤灰漂珠的密度和粒徑對(duì)保溫膩?zhàn)訉?dǎo)熱性能的影響,找到了導(dǎo)熱系數(shù)最低、密度為0.451g/ml、粒徑為40-60目的粉煤灰漂珠作為保溫膩?zhàn)拥闹饕墓δ芄橇�。其�?用溶膠-凝膠法合成了介孔二氧化硅,并用六甲基二硅胺烷對(duì)其進(jìn)行了表面改性,研究了以介孔二氧化硅為填料,彈性乳液為膠黏劑,制備的復(fù)合材料的導(dǎo)熱系數(shù),發(fā)現(xiàn)介孔二氧化硅具有較小的導(dǎo)熱系數(shù),只是具有親水性能,容易吸附水分子,導(dǎo)致其導(dǎo)熱系數(shù)一定程度的增大,疏水改性后,效果變好。最后,以粉煤灰漂珠為主要功能材料,陶瓷微珠、介孔二氧化硅和遠(yuǎn)紅外粉為輔助功能材料,并加入適量的彈性乳液試制建筑外墻保溫膩?zhàn)?采用正交實(shí)驗(yàn)設(shè)計(jì)獲取各組分的最佳比例。 試驗(yàn)結(jié)果表明：(1)隨著粉煤灰漂珠密度的降低和粒徑的增大,保溫膩?zhàn)拥膶?dǎo)熱系數(shù)在逐漸的減��；(2)由于吸附的水的影響,介孔二氧化硅改性后,導(dǎo)熱系數(shù)減小了一半；(3)介孔材料的導(dǎo)熱系數(shù)接近天然大孔結(jié)構(gòu)的漂珠；(4)粉煤灰漂珠和遠(yuǎn)紅外粉的用量對(duì)保溫膩?zhàn)拥膶?dǎo)熱系數(shù)有比較顯著的影響；(5)遠(yuǎn)紅外粉和粉煤灰漂珠對(duì)保溫膩?zhàn)拥捏w積收縮率有顯著的影響；(6)原料中粉煤灰漂珠、陶瓷微珠、介孔二氧化硅、遠(yuǎn)紅外粉的最佳配比是：20：16：3：4,最佳配比下的導(dǎo)熱系數(shù)能達(dá)到0.048W/(m·K)
[Abstract]:Building energy conservation has become an important part of energy conservation work in our country, the use of external wall insulation materials is the most important measure to achieve building energy saving. Thermal insulation putty is a new type of thermal insulation and insulation material which has been widely studied in recent years. It has the advantages of low dry density, low thermal conductivity, anti-aging, good weathering resistance, simple ingredients, excellent fire resistance, low cost and convenient construction. In this paper, the mineral composition and physical properties of fly ash beads are analyzed in depth, and the effects of density and particle size of fly ash beads on thermal conductivity of thermal insulation putty are investigated through orthogonal experiments, and the lowest thermal conductivity is found. The density is 0.451g / ml and the particle size is 40-60. The fly ash drifter is used as the main functional aggregate of the thermal insulation putty. Secondly, mesoporous silica was synthesized by sol-gel method and modified with hexamethyldisilylamine. The thermal conductivity of the composite prepared by using mesoporous silica as filler and elastic emulsion as adhesive was studied. It is found that mesoporous silica has small thermal conductivity, but it is hydrophilic and easy to adsorb water molecules, which leads to the increase of thermal conductivity to a certain extent. After hydrophobic modification, the effect becomes better. Finally, with fly ash beads as main functional materials, ceramic beads, mesoporous silica and far-infrared powder as auxiliary functional materials, suitable amount of elastic emulsion was added to produce building exterior wall insulation putty. The optimum proportion of each component was obtained by orthogonal design. The results show that: (1) with the decrease of the density of fly ash beads and the increase of particle size, the thermal conductivity of thermal insulation putty decreases gradually; (2) because of the influence of adsorbed water, the thermal conductivity of mesoporous silica is reduced by half after modification, (3) the thermal conductivity of mesoporous materials is close to that of natural macroporous beads. (4) the amount of fly ash beads and far infrared powder has a significant effect on the thermal conductivity of the thermal insulation putty, (5) the far infrared powder and the fly ash drifter have a significant effect on the volume shrinkage of the thermal insulation putty. (6) the optimum ratio of fly ash beads, ceramic beads, mesoporous silica and far-infrared powder in raw materials is 20: 16: 3: 4, and the thermal conductivity can reach 0.048W/ (m K).
【學(xué)位授予單位】：揚(yáng)州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU561.4;TU551
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 施衛(wèi)國(guó);湯忠海;;輕型漂珠保溫磚的研制[J];萍鄉(xiāng)高等�？茖W(xué)校學(xué)報(bào);2007年03期
2 曾珍,張雄;建筑保溫材料的發(fā)展[J];上海建材;2005年04期
3 汪世平;建筑隔熱保溫涂料及其研究進(jìn)展[J];上海涂料;2005年03期
4 徐峰;;對(duì)我國(guó)建筑保溫隔熱涂料應(yīng)用與發(fā)展的幾點(diǎn)認(rèn)識(shí)[J];上海涂料;2005年11期
5 王金臺(tái),路國(guó)忠;太陽(yáng)熱反射隔熱涂料[J];涂料工業(yè);2004年10期
6 王谷峰;張永興;陳長(zhǎng)鋒;;建筑保溫隔熱彈性膩?zhàn)拥难兄芠J];涂料工業(yè);2012年03期
7 周立鳴,鄧蔚;納米孔硅質(zhì)絕熱材料[J];新型建筑材料;2000年09期
8 倪文,張豐收;絕熱材料的優(yōu)化設(shè)計(jì)[J];新型建筑材料;2001年02期
9 陳淑祥,倪文,江翰,董文輝;超輕硬硅鈣石型硅酸鈣絕熱材料制備技術(shù)國(guó)內(nèi)外研究現(xiàn)狀[J];新型建筑材料;2004年01期
10 郭麗梅;;漂珠復(fù)合保溫材料的研制[J];新型建筑材料;2005年12期
，
本文編號(hào)：2298082
本文鏈接：http://sikaile.net/kejilunwen/sgjslw/2298082.html
[Abstract]:Building energy conservation has become an important part of energy conservation work in our country, the use of external wall insulation materials is the most important measure to achieve building energy saving. Thermal insulation putty is a new type of thermal insulation and insulation material which has been widely studied in recent years. It has the advantages of low dry density, low thermal conductivity, anti-aging, good weathering resistance, simple ingredients, excellent fire resistance, low cost and convenient construction. In this paper, the mineral composition and physical properties of fly ash beads are analyzed in depth, and the effects of density and particle size of fly ash beads on thermal conductivity of thermal insulation putty are investigated through orthogonal experiments, and the lowest thermal conductivity is found. The density is 0.451g / ml and the particle size is 40-60. The fly ash drifter is used as the main functional aggregate of the thermal insulation putty. Secondly, mesoporous silica was synthesized by sol-gel method and modified with hexamethyldisilylamine. The thermal conductivity of the composite prepared by using mesoporous silica as filler and elastic emulsion as adhesive was studied. It is found that mesoporous silica has small thermal conductivity, but it is hydrophilic and easy to adsorb water molecules, which leads to the increase of thermal conductivity to a certain extent. After hydrophobic modification, the effect becomes better. Finally, with fly ash beads as main functional materials, ceramic beads, mesoporous silica and far-infrared powder as auxiliary functional materials, suitable amount of elastic emulsion was added to produce building exterior wall insulation putty. The optimum proportion of each component was obtained by orthogonal design. The results show that: (1) with the decrease of the density of fly ash beads and the increase of particle size, the thermal conductivity of thermal insulation putty decreases gradually; (2) because of the influence of adsorbed water, the thermal conductivity of mesoporous silica is reduced by half after modification, (3) the thermal conductivity of mesoporous materials is close to that of natural macroporous beads. (4) the amount of fly ash beads and far infrared powder has a significant effect on the thermal conductivity of the thermal insulation putty, (5) the far infrared powder and the fly ash drifter have a significant effect on the volume shrinkage of the thermal insulation putty. (6) the optimum ratio of fly ash beads, ceramic beads, mesoporous silica and far-infrared powder in raw materials is 20: 16: 3: 4, and the thermal conductivity can reach 0.048W/ (m K).
【學(xué)位授予單位】：揚(yáng)州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU561.4;TU551
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 施衛(wèi)國(guó);湯忠海;;輕型漂珠保溫磚的研制[J];萍鄉(xiāng)高等�？茖W(xué)校學(xué)報(bào);2007年03期
2 曾珍,張雄;建筑保溫材料的發(fā)展[J];上海建材;2005年04期
3 汪世平;建筑隔熱保溫涂料及其研究進(jìn)展[J];上海涂料;2005年03期
4 徐峰;;對(duì)我國(guó)建筑保溫隔熱涂料應(yīng)用與發(fā)展的幾點(diǎn)認(rèn)識(shí)[J];上海涂料;2005年11期
5 王金臺(tái),路國(guó)忠;太陽(yáng)熱反射隔熱涂料[J];涂料工業(yè);2004年10期
6 王谷峰;張永興;陳長(zhǎng)鋒;;建筑保溫隔熱彈性膩?zhàn)拥难兄芠J];涂料工業(yè);2012年03期
7 周立鳴,鄧蔚;納米孔硅質(zhì)絕熱材料[J];新型建筑材料;2000年09期
8 倪文,張豐收;絕熱材料的優(yōu)化設(shè)計(jì)[J];新型建筑材料;2001年02期
9 陳淑祥,倪文,江翰,董文輝;超輕硬硅鈣石型硅酸鈣絕熱材料制備技術(shù)國(guó)內(nèi)外研究現(xiàn)狀[J];新型建筑材料;2004年01期
10 郭麗梅;;漂珠復(fù)合保溫材料的研制[J];新型建筑材料;2005年12期
，本文編號(hào)：2298082
本文鏈接：http://sikaile.net/kejilunwen/sgjslw/2298082.html
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