本文選題：長(zhǎng)余輝發(fā)光玻璃 + SBA-15粉體�。� 參考：《東華大學(xué)》2015年碩士論文

【摘要】：長(zhǎng)余輝發(fā)光材料是指在激發(fā)光停止照射后，仍能夠持續(xù)發(fā)光的材料，它能把吸收的光能儲(chǔ)存起來，在較暗的環(huán)境中發(fā)出明亮的可見光，長(zhǎng)余輝材料被認(rèn)為是一種儲(chǔ)能、節(jié)能的發(fā)光材料，在多個(gè)領(lǐng)域有著廣泛的應(yīng)用。 商業(yè)用長(zhǎng)余輝發(fā)光材料一般是具有不同粒度的粉體，應(yīng)用時(shí)常將這些長(zhǎng)余輝發(fā)光粉體復(fù)合到不同的基體中，制成發(fā)光制品。玻璃材料的透明性好，是一種理想的長(zhǎng)余輝發(fā)光材料復(fù)合的基質(zhì)材料。高性能長(zhǎng)余輝發(fā)光玻璃的制備研究一直受到廣大科技工作者的青睞。 目前長(zhǎng)余輝發(fā)光玻璃的制備依然采用熔融法，要經(jīng)過高溫熔融才能制備出發(fā)光玻璃。由于高溫熔融是個(gè)很復(fù)雜的過程，所以高性能的長(zhǎng)余輝發(fā)光玻璃制備一直受限，需要探索新的制備方法。 固相燒結(jié)法是制備陶瓷材料和金屬材料的一種常用方法，用來制備玻璃的研究并不多，因?yàn)椴捎眠@種方法制備玻璃耗時(shí)長(zhǎng)并且難以獲得高透明的玻璃。本文提出了用介孔二氧化硅做基體與放電等離子體燒結(jié)（SPS）這一新型固相燒結(jié)方法相結(jié)合制備長(zhǎng)余輝發(fā)光玻璃，同時(shí)研究其發(fā)光性能，主要研究工作如下： （1）采用TEOS為SiO2前驅(qū)體，利用P123為模板劑，經(jīng)過水熱合成等一系列過程合成SBA-15粉體。通過小角XRD衍射、氮?dú)馕?脫附、掃描電鏡和透射電鏡對(duì)合成的SBA-15粉體進(jìn)行了系統(tǒng)表征。結(jié)果表明：所合成的SBA-15呈六方孔道結(jié)構(gòu)，孔徑為6.608nm，比表面積達(dá)到了620m2/g； （2）將合成的SBA-15粉體利用放電等離子體燒結(jié)技術(shù)進(jìn)行燒結(jié)，詳細(xì)考察了SBA-15粉體的燒結(jié)特性，最終確定最佳燒結(jié)工藝為：燒結(jié)溫度1020℃、燒結(jié)壓力50MPa、保溫時(shí)間3min。此條件下獲得的純玻璃在紫外-可見光范圍內(nèi)透過率達(dá)到了80%； （3）在上述工作的基礎(chǔ)上，按照不同比例將商用長(zhǎng)余輝發(fā)光粉體與SBA-15粉體混合均勻，然后用SPS進(jìn)行燒結(jié)，在燒結(jié)壓力50MPa、燒結(jié)溫度980-1140℃，保溫3min的條件下，，燒結(jié)制備了一系列長(zhǎng)余輝發(fā)光玻璃。熒光光譜、紫外吸收、掃描電鏡和XRD測(cè)試結(jié)果表明：經(jīng)過SPS燒結(jié)后，分散在玻璃里的長(zhǎng)余輝稀土發(fā)光粉體并沒有發(fā)生分解，依然保持了原有的發(fā)光性能。 本文把商用長(zhǎng)余輝發(fā)光粉體和介孔SBA-15粉體混合，利用SPS燒結(jié)技術(shù)，成功制備了發(fā)光性能優(yōu)異的長(zhǎng)余輝發(fā)光玻璃，這為高性能長(zhǎng)余輝發(fā)光玻璃的制備提供了一種新方法。
[Abstract]:A long afterglow material is a material that can continue to emit light after the excitation of the light is stopped. It can store the absorbed light energy and emit bright visible light in a dark environment. The long afterglow material is considered to be a kind of energy storage. Energy-saving luminescent materials have been widely used in many fields. The long afterglow phosphors for commercial use are generally of different particle sizes. These long afterglow phosphors are often recombined into different substrates to produce luminescent products. Glass has good transparency and is an ideal matrix material for long afterglow luminescent materials. The preparation of high performance long afterglow luminescent glass has been favored by many scientists and technicians. At present, the long afterglow luminescent glass is still prepared by melting method, and the luminescent glass can only be prepared by high temperature melting. Since high temperature melting is a complex process, the preparation of high performance long afterglow glass is always limited, so it is necessary to explore new preparation methods. Solid-state sintering is a common method for preparing ceramic and metal materials. There are few studies on glass preparation because it takes a long time to prepare glass and it is difficult to obtain transparent glass. In this paper, a novel solid-state sintering method, mesoporous silica as substrate, and discharge plasma sintering (SPS) is proposed to prepare long afterglow phosphorescent glasses. The luminescence properties of the glasses are also studied. The main research work is as follows: 1) SBA-15 powders were synthesized by hydrothermal synthesis using TEOS as SiO2 precursor and P123 as template. The synthesized SBA-15 powders were characterized by small angle XRD diffraction, nitrogen adsorption-desorption, scanning electron microscopy and transmission electron microscopy. The results show that the synthesized SBA-15 has hexagonal pore structure with a pore size of 6.608 nm and a specific surface area of 620m2 / g. The SBA-15 powder was sintered by discharge plasma sintering technique. The sintering characteristics of SBA-15 powder were investigated in detail. The optimum sintering process was determined as follows: sintering temperature 1020 鈩

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