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  本文關(guān)鍵詞：低熔點(diǎn)裝飾乳濁玻璃結(jié)構(gòu)與性能的研究　出處：《武漢理工大學(xué)》2014年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 乳濁玻璃 分相 性能 顯微結(jié)構(gòu)

【摘要】：本文以Na2O-CaO-SiO2系統(tǒng)玻璃為基礎(chǔ)，引入磷酸鹽作為乳濁劑，制備了耐水性較佳、光澤度良好、白度大于80%、熱膨脹系數(shù)小于75×10-7℃-1、抗折強(qiáng)度大于100Mpa的無(wú)氟裝飾乳濁玻璃。研究了P2O5對(duì)玻璃微觀結(jié)構(gòu)的影響；分析了A12O3、B2O3對(duì)玻璃微觀結(jié)構(gòu)和物化性能的影響；探討了堿金屬對(duì)玻璃低熔點(diǎn)特征性能的影響。研究結(jié)果表明： 堿金屬離子對(duì)玻璃低熔點(diǎn)起關(guān)鍵作用。Na2O含量從2wt%升至8wt%，其對(duì)氧離子的反極化程度逐漸增大，網(wǎng)絡(luò)結(jié)構(gòu)中化學(xué)鍵鍵力逐漸減小，，粘滯活化能Eη從244.79KJ·mol-1降至219.14KJ·mol-1，理論熔制溫度降低了67℃；K2O逐步替代Na2O，后者比前者的反極化作用大，網(wǎng)絡(luò)結(jié)構(gòu)中的化學(xué)鍵鍵力逐漸增大，粘滯活化能Eη從228.47KJ·mol-1升至255.28KJ·mol-1，理論熔制溫度升高了58℃。 P2O5作為乳濁劑會(huì)導(dǎo)致玻璃的分相尺寸呈現(xiàn)逐漸增大的趨勢(shì)，液滴由聚集態(tài)變?yōu)殡x散態(tài)，液滴的形狀越來(lái)越規(guī)則并趨向于完整的球形。當(dāng)P2O5引入量為6wt%時(shí)，液滴尺寸平均為250nm且趨于均勻，液滴相呈現(xiàn)較圓潤(rùn)的球形；而富硅相逐漸趨于分散且相互獨(dú)立存在。當(dāng)P2O5引入量從4wt%增至7wt%時(shí)，玻璃的白度從73.51%增大至82.67%；抗折強(qiáng)度從104.56MPa增大至113.63MPa。 A12O3使得富磷相區(qū)域減小，但有助于液滴尺寸的增大。當(dāng)A12O3的引入量為5wt%時(shí)較佳，液滴基本穩(wěn)定在200nm左右。A12O3的含量從2wt%增至5wt%，玻璃的抗折強(qiáng)度從111.29MPa小幅增至114.36MPa；熱膨脹系數(shù)從73.08×10-7℃-1小幅增至75.34×10-7℃-1，Tg與Tf也隨之上升；密度無(wú)明顯變化，保持在2.5361g/cm3至2.5541g/cm3范圍內(nèi)。 B2O3能夠起到調(diào)節(jié)分相的作用，致使富磷網(wǎng)絡(luò)的聚集受到了阻礙，使得液滴尺寸被抑制，從而達(dá)到調(diào)整乳濁效果的作用。在其引入含量達(dá)到6wt%時(shí)白度表現(xiàn)較佳，其值為84.27%。B2O3的引入量從2wt%增至8wt%；熱膨脹系數(shù)從74.56×10-7℃-1增至87.67×10-7℃-1，Tg與Tf也隨之降低；密度從2.5422g/cm3降至2.4981g/cm3。 Na2O引入量從2wt%升至8wt%，玻璃的熱膨脹系數(shù)從63.51×10-7℃-1升至75.34×10-7℃-1，Tg與Tf也隨之降低，耐水性也出現(xiàn)降低的傾向；K2O逐步取代Na2O，玻璃的熱膨脹系數(shù)從75.34×10-7℃-1降至70.14×10-7℃-1，Tg與Tf也隨之升高，在兩者引入量均達(dá)到4wt%時(shí)玻璃耐水性較佳。
[Abstract]:This paper is based on the Na2O-CaO-SiO2 glass system, introducing phosphate as opacifying agent, preparation of better water resistance, good gloss, whiteness is greater than 80%, the thermal expansion coefficient is less than 75 DEG C * 10-7 -1, fluorine free decoration opaque glass flexural strength more than 100Mpa. The effect of P2O5 on Microstructure of glass; analysis of the A12O3, the influence of B2O3 on Microstructure and properties of glass; to investigate the effect of alkali metals on the properties of low melting point glass. The results show that:
Alkali metal ions play a key role in the content of.Na2O from 2wt% to 8wt% on glass with low melting point, the degree of polarization of the oxygen ions increases gradually, chemical bond force network structure decreases gradually, the viscous activation energy of E from 244.79KJ - mol-1 to 219.14KJ - mol-1 theory, the melting temperature decreased gradually 67 DEG C; K2O instead of Na2O, the latter than the former anti polarization effect, chemical bond force in the network structure increases gradually, the viscous activation energy of E from 228.47KJ to 255.28KJ, mol-1, mol-1, theory of melting temperature increased by 58 degrees.
P2O5 as opalizer will lead to glass phase separation size increasing gradually, drop by the aggregation into discrete state, shape and droplet more rules and tend to complete spherical. When P2O5 introduced was 6wt%, the average droplet size is 250nm and the uniform, spherical droplets more rounded; and the silicon rich phase tends to separate and independent existence. When P2O5 introduced from 4wt% to 7wt%, the glass whiteness increases from 73.51% to 82.67%; the flexural strength increased from 104.56MPa to 113.63MPa.
A12O3 makes the phosphorus rich phase region decreases, but increases to the droplet size. When the introduction of A12O3 quantity is 5wt% better, droplet content basically stable at around 200nm.A12O3 from 2wt% to 5wt%, the glass bending strength increased slightly from 111.29MPa 114.36MPa; thermal expansion coefficient from 73.08 * 10-7 C -1 slightly to 75.34 * 10-7 C -1, Tg and Tf also increased; no significant changes in density, remain in the 2.5361g/cm3 to 2.5541g/cm3 range.
B2O3 can play the role of regulating phase, resulting in the accumulation of phosphorus rich network is hindered, the droplet size is suppressed, so as to adjust the opacifying effect. In the introduction of 6wt% content of whiteness is better, the value for the introduction of the amount of 84.27%.B2O3 increased from 2wt% to 8wt%; thermal expansion coefficient from 74.56 to 87.67 DEG C * 10-7 -1 * 10-7 Tg Tf C -1, and decreased with the density decreased from 2.5422g/cm3 to 2.4981g/cm3.;
The intake of Na2O from 2wt% to 8wt%, the thermal expansion coefficient of glass from 63.51 * 10-7 to 75.34 * 10-7 C -1 C -1, Tg and Tf also decreased, water resistance also tends to decrease; K2O gradually replace Na2O, thermal expansion coefficient of glass from 75.34 * 10-7 to 70.14 * 10-7 C -1 C -1. Tg and Tf also increased, both in quantity is introduced to 4wt% glass water resistance is better.

【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：TQ171.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 許威;孫詩(shī)兵;田英良;;R_2O對(duì)低熔點(diǎn)硼硅酸鹽玻璃性能的影響[J];玻璃與搪瓷;2007年02期

2 王曉峰;湯華娟;王承遇;陶瑛;;無(wú)氟乳濁玻璃[J];玻璃與搪瓷;2007年05期

3 張兵;陳奇;侯鳳珍;李會(huì)平;;R_2O對(duì)ZnO-Sb_2O_3-P_2O_5低熔玻璃性能的影響[J];玻璃與搪瓷;2007年06期

4 王承遇,陶瑛;乳濁玻璃(一)[J];玻璃與搪瓷;1998年02期

5 謝于深;乳濁玻璃及其乳濁方法[J];玻璃;1986年06期

6 程金樹(shù),伍宏標(biāo),伍述文,駱澤昌;磷酸鹽乳濁玻璃的研制[J];玻璃;1989年01期

7 汪慶衛(wèi);楊占峰;寧偉;;P_2O_5/CaO對(duì)磷酸鹽乳濁玻璃分相析晶的影響[J];東華大學(xué)學(xué)報(bào)(自然科學(xué)版);2011年01期

8 王寧,陶瑛,陳敏;Al_2O_3含量對(duì)氟化物乳濁玻璃微觀形貌的影響[J];大連輕工業(yè)學(xué)院學(xué)報(bào);1999年03期

9 李楊;韓高榮;應(yīng)浩;;鈉硼硅玻璃分相的研究[J];硅酸鹽通報(bào);2006年05期

10 陳培;;氧化物摻雜對(duì)磷酸鹽低熔點(diǎn)玻璃結(jié)構(gòu)與封接性能的影響[J];硅酸鹽通報(bào);2008年06期

本文編號(hào)：1423470