Super absorbent polymers (SAPs) are advanced materials capable of absorbing and retaining extremely large amounts of liquid relative to their own mass. Commonly made from sodium polyacrylate or other cross-linked polymers, SAPs can hold up to 300-800 times their weight in water. They are widely used in products like diapers, sanitary napkins, adult incontinence products, and medical dressings, as well as in agriculture, horticulture, and industrial applications due to their superior moisture retention and absorption properties.

A sponge wipes is a cleaning product made from highly absorbent materials such as cellulose, foam, or microfiber, designed to soak up liquids and remove dirt from surfaces efficiently. Combining the softness and flexibility of a sponge with the flat, handy shape of a cloth, sponge wipes are reusable, easy to rinse, and suitable for both household and commercial cleaning tasks.

A membrane is a type of selective barrier used to remove or separate a feed stream as it passes through. Membranes are generally used for gas separation. Gas separation membranes are used to separate and purify specific components from other gases or vapor mixtures. The gas separation membrane technology is widely used in gas processing applications in different industries, such as petrochemical, chemical, and manufacturing.

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基础材料行业：资本开支增速放缓，供需持续改善－月报

2025年1-7月，化学原料与制品行业分别实现营收和利润5.2万亿和2134亿，同比增长1%和下滑8%。行业利润率4.1%降至历史低位。油价下行，内需不振，化工CCPI价格指数持续下行至3969点，年初至今下跌8.4%、同比 降9.2%。PPI持续下行，8月PPI为-4.7%，其中化学原料和制品为-5.7%，化纤为-9.3%，橡胶塑料为-2.6%。