首页|具有高通液性能高吸水性树脂的制备及性能研究

具有高通液性能高吸水性树脂的制备及性能研究

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以丙烯酸、功能单体为聚合单体,N,N-亚甲基双丙烯酰胺为交联剂,过硫酸钾为引发剂,采用水溶液聚合法合成了一种具有优异通液性能和吸液性能的高吸水性树脂,研究了自制功能单体用量、交联剂用量、引发剂用量、中和度、引发温度对高吸水性树脂吸液能力和通液能力的影响,并使用扫描电镜对高吸水性树脂的颗粒形态进行表征.结果表明,合成最佳条件为:丙烯酸用量为 250 g,功能单体用量为 25 g,交联剂用量为 1.5 g,引发剂用量为 0.375 g,氢氧化钠用量为 97.2 g,引发温度为 55℃.此条件下制备得到的高吸水性树脂具有良好的吸液性能和通液性能,吸盐水倍率为 103.25 g/g,通液速度为 201.55 mL/min.扫描电镜结果表明高吸水性树脂由于分子链的刚性变强,颗粒表面形状更规则.
Preparation and Properties of Super Absorbent Polymer with High Liquid Permeability
A super absorbent polymer with excellent liquid permeability and liquid absorption performance was synthesized by aqueous solution polymerization using acrylic acid and functional monomer as polymerization monomer,N,N-methylene bisacrylamide as crosslinking agent,and potassium persulfate as initiator.The effects of the amount of self-made functional monomer,the amount of crosslinking agent,the amount of initiator,neutralization degree and initiation temperature on the liquid absorption capacity and liquid permeability of the super absorbent polymer were studied,and the particle morphology of the super absorbent polymer was characterized by scanning electron microscopy.The results show that the optimal synthetic conditions are as follows:the amount of acrylic acid is 250 g,the amount of functional monomer is 25 g,the amount of crosslinking agent is 1.5 g,the amount of initiator is 0.375 g,the amount of sodium hydroxide is 97.2 g,and the initiation temperature is 55℃.The super absorbent polymer prepared under this condition has good liquid absorption and liquid permeability,with the brine absorption ratio is 103.25 g/g,and the liquid permeability speed is 201.55 mL/min.The SEM results show that the surface shape of the super absorbent polymer is more regular because of the increased rigidity of the molecular chain.

super absorbent polymerfunctional polymerhigh-pass liquidacrylic acidcomposite core

李振、田春兰、焦红岩、李哲

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山东诺尔生物科技有限公司, 山东 东营 257000

诺宸股份有限公司, 山东 东营 257000

高吸水性树脂 功能高分子 高通液 丙烯酸 复合芯体

2024

浙江化工
浙江省化工研究院有限公司

浙江化工

影响因子:0.131
ISSN:1006-4184
年,卷(期):2024.55(3)
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