本文關(guān)鍵詞：利用高爐礦渣等工業(yè)廢棄物制備耐堿玻璃纖維的研究　出處：《濟(jì)南大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 工業(yè)廢棄物 鋁硅酸鹽 玻璃纖維 耐堿性

【摘要】：本文以主要化學(xué)成分為SiO_2、CaO、MgO、Al_2O_3、Fe_2O_3等氧化物的高爐礦渣、粉煤灰、赤泥三種工業(yè)固廢物為主要研究對象,通過調(diào)整配比和添加其它玻璃纖維用工業(yè)原料制備了一系列的硅酸鹽玻璃試樣。以耐腐蝕性能和玻璃纖維成型性能為主要依據(jù),分析了固廢物玻璃結(jié)構(gòu)與性能的變化情況,探索了利用這幾種工業(yè)固廢物制備耐堿玻璃纖維的可行性。初步設(shè)計(jì)出了以高爐礦渣和赤泥作為原材料的耐堿玻璃纖維組合物。本文的研究過程和得出結(jié)論如下;首先使用高爐礦渣和粉煤灰配合工業(yè)原料制備了一系列的鋁硅酸鹽玻璃,通過結(jié)構(gòu)、性能以及纖維成型性的研究,優(yōu)選出了耐堿性能高于普通E纖維玻璃且符合纖維成型要求的固廢物玻璃試樣。研究發(fā)現(xiàn):隨著網(wǎng)絡(luò)形成體(SiO_2)逐步替代作為網(wǎng)絡(luò)修飾體的堿土金屬氧化物,固廢物玻璃的網(wǎng)絡(luò)結(jié)構(gòu)聚合度因[SiO4]四面體中的橋氧數(shù)增多而逐漸升高,玻璃化轉(zhuǎn)變溫度Tg逐漸升高,密度逐漸變小。隨著網(wǎng)絡(luò)中間體(Al_2O_3)逐漸的取代部分堿土金屬氧化物,固廢物玻璃的結(jié)構(gòu)聚合度逐漸提高,Tg和低溫析晶峰溫度Tc均逐漸升高,密度逐漸下降。在耐堿腐蝕性能方面,隨著SiO_2取代量的增大,固廢物玻璃的耐堿性能先提高后降低,SiO_2含量在56.85wt%的A3試樣具有最優(yōu)耐堿性能,其堿侵蝕失重率比E纖維玻璃降低57.3%左右。當(dāng)Al_2O_3的取代量增加時(shí),玻璃的耐堿性能逐漸變差。在此基礎(chǔ)上,本文通過引入赤泥研究了鐵氧化物與Al_2O_3比例的變化對固廢物玻璃結(jié)構(gòu)與性能的影響,同時(shí)探索了赤泥作為耐堿玻璃纖維原料的可行性。以高爐礦渣和赤泥作為部分原料試制了含鐵鋁硅酸鹽纖維玻璃,其優(yōu)選試樣的耐堿性能也高于普通E纖維玻璃且符合纖維成型要求。在研究中發(fā)現(xiàn):Fe_2O_3/Al_2O_3比值的變化對本體系玻璃的網(wǎng)絡(luò)結(jié)構(gòu)聚合度影響不大,隨著這一比值的增大玻璃結(jié)構(gòu)聚合度僅有輕微的先提高后下降的趨勢,隨著Fe_2O_3/Al_2O_3的比值的逐漸變大玻璃的密度先增大后減小,當(dāng)Fe_2O_3/Al_2O_3摩爾比值為1時(shí),玻璃試樣具有最優(yōu)的耐酸堿腐蝕性能。最后,本文在優(yōu)選的玻璃試樣組分中添加ZrO_2進(jìn)一步改善它們的耐酸堿性能,并研究了Zr O_2添加量對固廢物玻璃結(jié)構(gòu)性能的影響,進(jìn)而探索其最優(yōu)添加量。發(fā)現(xiàn)ZrO_2的添加對玻璃網(wǎng)絡(luò)結(jié)構(gòu)聚合度的影響不大,但結(jié)構(gòu)致密度和試樣密度因ZrO_2添加量的增加而增大,當(dāng)ZrO_2添加量大于10wt%之后密度的增長也開始變緩。在本文中的固廢物玻璃體系中,ZrO_2的最大添加量應(yīng)在15wt%以下,耐堿最優(yōu)添加量在10wt%左右,此時(shí)試樣的耐酸堿侵蝕性能可達(dá)到市場上的AR耐堿纖維玻璃水平。另外,通過玻璃纖維成型參數(shù)測試,發(fā)現(xiàn)隨著ZrO_2添加量的增加,固廢物玻璃的纖維成型溫度T_(lg3)和析晶上限溫度T_(uc)均變大,且拉絲區(qū)間ΔT(ΔT=T_(lg3)-T_(uc))變小,玻璃纖維成型性能下降,但ZrO_2含量為10wt%的耐腐蝕性能較優(yōu)的試樣仍滿足纖維成型要求。單絲拉制實(shí)驗(yàn)證明它們能夠連續(xù)拉制纖維直徑小于20μm的單絲,達(dá)到制備連續(xù)耐堿玻璃纖維的性能和工藝要求。
[Abstract]:In this paper, the main chemical components of SiO_2, CaO, MgO, Al_2O_3, Fe_2O_3 and other oxides of blast furnace slag, fly ash, red mud three kinds of industrial solid waste as the main research object, by adjusting the ratio and adding other glass fiber material for industrial preparation of silicate glass samples. With a series of corrosion resistance and glass fiber the forming performance is mainly based on the analysis of the changes of the structure and properties of solid waste glass, to explore the feasibility of preparation of alkali resistant glass fiber by using solid waste for this industry. Some preliminary design of a blast furnace slag and red mud as raw materials of alkali resistant glass fiber composition. The research process and conclusions are as follows; first use of blast furnace fly ash and slag with aluminum silicate glass, has prepared a series of industrial raw materials through the structure, performance and research of fiber forming, optimized the alkali resistance is higher than that of PU E glass fiber and glass fiber forming solid waste samples meet the requirements. The study found that: with the network forming (SiO_2) gradually replaced as the alkaline earth metal oxide modified body network, network structure of solid waste glass because the degree of polymerization of bridge oxygen numbers in [SiO4] tetrahedron increased gradually increased, the glass transition temperature of Tg increased gradually and the density decreases gradually. With the network intermediate (Al_2O_3) to replace part of the alkaline earth metal oxide solid waste glass structure gradually, the degree of polymerization increases, Tg and low temperature crystallization peak temperature of Tc gradually increased, the density decreased gradually. The alkali corrosion resistance, with SiO_2 content increasing, the alkali resistance of solid waste glass the first increased and then decreased, SiO_2 content has the best performance in the A3 sample 56.85wt% alkali, alkali erosion loss rate of about 57.3% lower than E fiber glass. When the substitution amount of Al_2O_3 is increased , the alkali resistance glass becomes worse. On this basis, the influence of iron oxides and the ratio of Al_2O_3 was studied by introducing the red mud on glass structure and properties of solid waste, while exploring the red mud as raw materials. The feasibility of alkali resistant glass fiber with blast furnace slag and red mud produced as part of the iron aluminum silicate fiber the alkali resistance of glass, the selected sample is higher than that of common E fiber glass fiber forming and meet the requirements. In the study found: ratio of Fe_2O_3/Al_2O_3 network structure of this glass system has little effect on the degree of polymerization, with the increase of the degree of polymerization of glass structure only a slight downward trend after the first increase this ratio, with the gradual change the big glass Fe_2O_3/Al_2O_3 ratio of the density increased first and then decreased when the Fe_2O_3/Al_2O_3 molar ratio is 1, acid and alkali corrosion of glass samples has the best Inhibition performance. Finally, this paper in the glass sample group preferred in adding ZrO_2 to further improve their performance of acid and alkali resistance, and studied the Zr effect of O_2 addition on the structure and properties of solid waste glass, and then explore the optimal dosage. Found that the addition of ZrO_2 has little effect on the degree of polymerization of the glass network structure, but the structure caused by the density and density of the sample due to the increase of the amount of ZrO_2 increases, when the amount of ZrO_2 is greater than the density of 10wt% growth also slowed. Solid waste glass system in this paper, the maximum amount of ZrO_2 should be below 15wt%, the optimal dosage of alkali in about 10wt%, the samples of acid and alkali corrosion resistance can reach AR level on the market of alkali resistant fiber glass. In addition, the forming parameters of glass fiber testing, found that with the increase of ZrO_2, fiber forming temperature of T_ solid waste glass (Lg3) and crystallization temperature limit T_ (UC) are larger, and the drawing interval Delta T (T=T_ (Lg3) -T_ (UC)) decreased, decreased glass fiber forming properties, but the content of ZrO_2 is resistant to corrosion better performance 10wt% can still meet the requirements. The molding of the fiber monofilament drawing experiment showed that they can be continuously drawn monofilament fiber diameter less than 20 m, meet the requirements of continuous preparation of alkali resistant glass fiber performance and process.

【學(xué)位授予單位】：濟(jì)南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TQ171.774

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