產品資訊 - Super Absorbent Polymer for Diaper->absorbent polymers

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Shandong Haoyue New Materials Co., Ltd.

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Super Absorbent Polymer for Diaper

產品分類 :

化學->化學用品->吸收性聚合物

產品規格

Model No:	ZNK

Country	CN
Brand	HAOU
Materials	SAP
Color	White
Packing	25kg bag
Minimum Order	16MT
Payment Term	T/T, L/C

產品描述

How SAP works in baby diapers
SAP is typically used as the raw materials of diapers. It helps improve capacity for better retention in a disposable diaper, allowing the diaper to be thinner with improved performance and less usage of pine fluff pulp. The molecular structure of the polyacrylate has sodium carboxylate groups hanging off the main chain. When it comes in contact with water, the sodium detaches itself, leaving only carboxyl ions. Being negatively charged, these ions repel one another so that the polymer unwinds and absorbs water, which is attracted by the sodium atoms. The polymer also has cross-links, which effectively leads to a three-dimensional structure. It has high molecular weight of more than a million; thus, instead of getting dissolved, it solidifies into a gel. The Hydrogen in the water (H-O-H) is trapped by the acrylate due to the atomic bonds associated with the polarity forces between the atoms. Electrolytes in the liquid, such as salt minerals (urine contains 0.9% of minerals), reduce polarity, thereby affecting superabsorbent properties, especially with regard to the superabsorbent capacity for liquid retention. This is the main reason why diapers containing SAP should never be tested with plain water. Linear molecular configurations have less total capacity than non-linear molecules but, on the other hand, retention of liquid in a linear molecule is higher than in a non-linear molecule, due to improved polarity.