Superabsorbent polymer, often known as SAP or superabsorbent material (SAM),  High water-absorbent resin finds diverse applications in both consumer and industrial sectors due to its remarkable ability to absorb water and aqueous solutions, absorbing up to 500 times its weight in liquid. Originally developed in the 1960s by the US Department of Agriculture to enhance water conservation in soil, the initial polymer was starch-based, but modern SAP technology shifted to hydrocarbon-derived polymers, High molecular weight water-absorbent material specifically crosslinked acrylic polymers neutralized with sodium.

Superabsorbent polymers have become a staple in the hygiene industry, with around 3 million tons produced annually. Their applications include Hydrogel, Feminine hygiene pads, Fake snow, Wastewater treatment SAP, Agricultural application SAP, Baby and adult diapers, and various incontinence products.

高吸水性ポリマーの化学： Superabsorbent polymers used in laminates and airlaids are typically formed through the reaction of acrylic acid monomer with sodium hydroxide and a cross-linking agent, resulting in polyacrylic acid sodium salt. Gel Polymerization is the most common technique, where components are sprayed onto a moving belt in the presence of UV light, causing crosslinking. Suspension Polymerization and Solution Polymerization are alternative methods.

高吸水性ポリマーの応用： これらのポリマーは、尿や血液などの水性液体に触れると、浸透圧によって水分を吸収する。そのため、加圧下でも大量の液体を保持することができ、個人衛生用品や失禁用品に最適である。塩分を含む液体と。

高吸水性ポリマーの重要な特性：

• 粒子径
• 自由膨潤吸収容量
• 荷重吸収能力
• 保水性
• 吸水率
• ポリマー透過性
• ゲル強度
• ウィッキング能力