摘要： 以 N，N′-亚甲基双丙烯酰胺(NMBA)和聚乙二醇(PEG)为复合交联剂，以丙烯酸(AA)、丙烯酰胺 (AM)、2-丙烯酰胺基 -2-甲基丙磺酸(AMPS)为单体，在无任何助剂下超声辐射合成 AA/AM/AMPS共聚高吸水性 树脂，研究了反应条件对树脂吸水倍率的影响，并对树脂的吸水性能进行了测试，用红外光谱(FT-IR)和 AFM对树 脂的结构和表面形态进行了表征。结果表明:在优化条件下合成的高吸水性树脂其吸蒸馏水和生理盐水分别为 1342g/g和 92g/g;表征分析证实，复合交联剂通过化学交联和物理交联的协同作用可以有效改善树脂的凝胶强度、 耐热性、保水性和再生性。
关键词:
丙烯酸,
丙烯酰胺,
2-丙烯酰胺基 -2-甲基丙磺酸,
超声辐射,
高吸水性树脂
Abstract: Using N, -methylene-bis-acrylmide( NMBA )and polyethylene glycol(PEG) as mixed crosslinkers, a superabsorbent resin copolymer with acrylic acid(AA), acrylamide(AM) and 2-acrylamido-2-methy propanesulfonic acid(AMPS ) as monomers was prepared by ultrasonic irradiation without any additives. The influence of reaction conditions on water absorbency was investigated and the absorbency of resin was tested. The molecular structure and surface morphology were characterized by FT-IR and AFM respectively. The results showed that the absorbing power was 1 342 (g/g)for distilled water and 94(g/g) for saline solution in the optimium conditions. The gel intensity, water retention, reuses and heat resistance were improved by synergistic chemical and physical crosslinking of mixed crosslinkers.
Key words:
acrylic acid: acrylamide: 2 -acry lamido -methylpropanesulfonic acid,
ultrasonic irradiation: superabsorbent resin
谭德新, 王艳丽, 徐国财, 徐霞玲. 复合交联剂型高吸水树脂的超声制备与性能研究[J]. 涂料工业, 2009, 39(3): 41-44.
Tan Dexin Wang Yanli-xu Guocai Xu Xialing. Preparation of Superabsorbent Resin with Mixed Crosslinkers via Ultrasonic Irradiation and Its Performance[J]. Paint & Coatings Industry, 2009, 39(3): 41-44.