Superabsorbent polymer is a kind of functional materials which can absorb a large amount of water and the absorbed water is difficult to remove even under some pressure. Because of these excellent characteristics, superabsorbent polymers are widely used in many fields. In this paper, two kinds of materials are studied, the copolymer of acrylamide（AM） and 2-acrylamide-2-methylpropanesulfonic acid （AMPS） is synthesized by aqueous solution polymerization on the conditions of potassium sulfate as in... 

【文章來(lái)源】：華僑大學(xué)福建省

【文章頁(yè)數(shù)】：86 頁(yè)

【學(xué)位級(jí)別】：碩士

【部分圖文】：

TEOS用量不同的雜化材料的SEM圖(10.00kX)

為酞胺及丙烯酸上的一C~0墓的振動(dòng)峰.這就說(shuō)明2.2SEM分析圖2(a)，(b)分別是CMC一g一(AA一AM)加交聯(lián)劑與未加交聯(lián)劑(J七它組分相同)，制得材料的斷而掃描電鏡圖.從中可以看出，圖2(b)中無(wú)機(jī)粒子出現(xiàn)明顯的團(tuán)聚現(xiàn)象，而圖2(a)中斷而形貌較為均一這(a)CMC一g一(AA一AM)/51():+交聯(lián)劑(x5000)(b)CMC一g一(AA一AM)/510:(xs000)圖2材料的掃描電鏡照片表明存在交聯(lián)劑，有機(jī)相與無(wú)機(jī)相之間能形成較強(qiáng)的氫鍵、甚至共價(jià)鍵，使無(wú)機(jī)粒子能較為均勻的分11交，不出現(xiàn)明顯的團(tuán)聚及相分離現(xiàn)象.顯然說(shuō)明，加人交聯(lián)劑使得有機(jī)荃質(zhì)形成一個(gè)有機(jī)的三維網(wǎng)絡(luò).這與無(wú)機(jī)填料的網(wǎng)絡(luò)構(gòu)成互穿網(wǎng)絡(luò)


本文編號(hào)：3401186