CAJ | 학술논문

以玉米淀粉、羧甲基淀粉钠和丙烯酸为主要原料,同时加入活性高岭土,采用水溶液共聚法制备了复合高吸水树脂.考察了接枝共聚过程的影响因素,确定了合成树脂的最优工艺条件,合成的树脂吸水倍率为 1195.4 g·g?1,吸盐水(质量分数为 0.9%的氯化钠溶液)倍率为 90.1 g·g?1.借助于傅里叶红外(FTIR)、扫描电镜(SEM)及热重-差热分析(TG-DTA)技术对合成树脂进行了性能和结构表征,并考察了样品的热稳定性.结果表明,高吸水树脂在 100℃下具有良好的热稳定性,所制备样品具有商业化前景.
이옥미정분、최갑기정분납화병희산위주요원료,동시가입활성고령토,채용수용액공취법제비료복합고흡수수지.고찰료접지공취과정적영향인소,학정료합성수지적최우공예조건,합성적수지흡수배솔위 1195.4 g·g?1,흡염수(질량분수위 0.9%적록화납용액)배솔위 90.1 g·g?1.차조우부리협홍외(FTIR)、소묘전경(SEM)급열중-차열분석(TG-DTA)기술대합성수지진행료성능화결구표정,병고찰료양품적열은정성.결과표명,고흡수수지재 100℃하구유량호적열은정성,소제비양품구유상업화전경.
One superabsorbent resin (SAR) was synthesized by solution copolymerization with starch, kaolin, acrylic acid as the main raw materials. The influences of mass ratio of monomers to starch, degree of neutralization of acrylic acid, amount of cross-linking agent and initiator on the absorbency were studied to optimize the preparation condition. The absorbencies of the best sample thus synthesized can be up to 1195.4 g·g-1 in distilled water and 90.1 g·g?1 in saline solution (0.9%,mass). The results of Fourier Transform Infrared Spectroscopy (FTIR) showed that OH in kaolin participates in the polymerization reaction, enhancing the crosslinking extent and increasing the absorbency of sample. SEM results revealed that the SAR sample had the multi-porous and layered structure. The experiments of thermal stability indicated that SAR synthesized in this paper had the stable absorbency under 100℃.