本文選題：相變微膠囊 + 原位聚合法　； 參考：《西安建筑科技大學(xué)》2013年碩士論文

【摘要】：隨著我國(guó)經(jīng)濟(jì)增長(zhǎng)速度的不斷加快，能源緊缺的現(xiàn)狀呼吁著節(jié)能策略的推出，促使科研工作者在節(jié)能領(lǐng)域進(jìn)一步開(kāi)拓新的研究方向。其中在建筑領(lǐng)域節(jié)能技術(shù)方面，利用相變微膠囊封裝技術(shù)所達(dá)到的儲(chǔ)能效果，將其應(yīng)用在建筑圍護(hù)結(jié)構(gòu)，通過(guò)儲(chǔ)(放)能作用的發(fā)揮，達(dá)到解決建筑室內(nèi)溫度穩(wěn)定所需最小能量的目的。因此，如何在節(jié)能領(lǐng)域有效利用能源并能滿(mǎn)足人們居住的舒適度，開(kāi)發(fā)研究具有儲(chǔ)能儲(chǔ)濕性能的建筑材料，成為該領(lǐng)域研究難點(diǎn)之一。 本文首先選取價(jià)格低廉的相變石蠟為核、高吸油性樹(shù)脂聚丙烯酸酯為內(nèi)殼，采用化學(xué)合成方法，開(kāi)展了大量探索試驗(yàn)，獲得性能良好的單殼相變微膠囊，，確定其主要參數(shù)分別為芯壁比5:2、乳化劑用量和乳化時(shí)間分別為4%和20min，在此基礎(chǔ)上，選取高吸水性樹(shù)脂聚丙烯酸鈉為壁材，利用界面聚合法制備具有調(diào)溫調(diào)濕性能的雙殼相變微膠囊。 其次，利用電子掃描顯微鏡(SEM)、紅外光譜分析、飽和鹽溶液法、差示掃描量熱儀(DSC)以及熱重（TG）對(duì)單、雙殼相變微膠囊分別進(jìn)行了形貌、結(jié)構(gòu)、熱濕性能、穩(wěn)定性的表征。測(cè)試結(jié)果表明：雙殼相變微膠囊的外觀(guān)形狀呈現(xiàn)出近似球形、殼層包覆完整；與單殼相變微膠囊相比，具有較好的吸放濕能力，而且對(duì)相變石蠟發(fā)生固—液相變時(shí)阻滯作用更好，可耐溫度可達(dá)到123℃。 利用建筑石膏自身具有的調(diào)濕性能并作為抹灰材料的實(shí)際應(yīng)用情況，將本文制備的雙殼相變微膠囊按照不同比例摻入到石膏膠凝材料中，制作相變儲(chǔ)能儲(chǔ)濕石膏基試件，在一定的模擬環(huán)境下對(duì)試件進(jìn)行了儲(chǔ)能試驗(yàn)和吸放濕性能試驗(yàn)。結(jié)果表明：所研究的相變儲(chǔ)能石膏基材料具有適宜的相變溫度及一定的儲(chǔ)（放）熱能力，且吸放濕性能良好。
[Abstract]:With the acceleration of economic growth in our country, the current situation of energy shortage calls for the introduction of energy-saving strategies, which urges researchers to further develop a new research direction in the field of energy conservation. In the field of building energy saving technology, using phase change microencapsulation technology to achieve the effect of energy storage, apply it to the building envelope structure, through the use of energy storage (discharge) function, To achieve the purpose of solving the minimum energy required for indoor temperature stability. Therefore, how to effectively use energy in the field of energy conservation and can meet the comfort of people, the development and research of energy storage and moisture storage of building materials has become one of the difficulties in this field. In this paper, phase change paraffin (PCP) with low price was selected as core, polyacrylate as inner shell and polyacrylate as inner shell. By chemical synthesis, a large number of exploratory experiments were carried out to obtain single-shell phase change microcapsules with good performance. The main parameters were determined as core wall ratio of 5: 2, emulsifier dosage of 4% and emulsifying time of 20 min. On this basis, sodium polyacrylate, a superabsorbent resin, was selected as wall material. Double shell phase change microcapsules were prepared by interfacial polymerization. Secondly, single and double shell phase change microcapsules were characterized by SEM, infrared spectroscopy, saturated salt solution method, differential scanning calorimeter (DSC) and thermogravimetric (TG), respectively. The results show that the appearance shape of double shell phase change microcapsule is approximately spherical, and the shell coating is complete, and compared with single shell phase change microcapsule, it has better moisture absorption and desorption ability. Moreover, it is better to block phase change paraffin in solid and liquid phase, and the temperature can be up to 123 鈩

本文編號(hào)：2012853