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Hangzhou Zhongwang Technology Co., Ltd
Date: 2023-12-04Read: 1
Sodium polyacrylateThe English name is Sodium polyacrylate, abbreviated as PAAS or PAA Na, with a structural formula of [- CH2-CH (COONa)] n. It is a water-soluble polymer compound. Sodium polyacrylate in commercial form, with a relative molecular weight ranging from hundreds to tens of millions, appears as colorless or yellowish liquid, viscous liquid, gel, resin or solid powder, and is easily soluble in water.
Intrinsic viscosity in sodium polyacrylate (PAAS）In material applications, it is an important testing indicator. For example, sodium polyacrylate (PAAS）When the material is used as a water treatment agent, its intrinsic viscosity is specified to be within (0).060~0.10dl/g，30Within the range of ℃, sodium polyacrylate (PAAS）The water treatment performance of the material will significantly decrease.
The Ubbelohde viscometer method is a commonly used method for detecting characteristic viscosity, and the accuracy of its detection data is an important basis for quality control.
IVS800 Fully Automatic Ubbelohde Viscometer
Test Process
Weighing samples
Weigh the sodium polyacrylate PAAS sample with a one ten thousandth balance, place it in a dissolution bottle, and use a DP25 automatic liquid dispenser (with a transfer accuracy of ≤ 0.1%) to transfer itQuantify sodium hydroxide solvent into the dissolution bottle;
Dissolve sample
Place the dissolution bottle into the P12 Zhongwang Polymer Dissolver and dissolve the sample using magnetic stirring at the specified temperature and time;
Viscosity Test
Place the dissolution bottle of the sodium polyacrylate PAAS sample into the IVS800 fully automatic Ubbelohde viscometer sample tray that has been set to the desired water tank temperature (30 ± 0.01 ℃), activate the testing function, and automatically obtain the test results;
Test results
The IVS800 fully automatic Ubbelohde viscometer is connected to a computer, which can automatically obtain test results and store them for diversified viscosity data analysis;
Clean the viscosity tube
The viscosity tube is fixed in the constant temperature water bath of the IVS800 fully automatic Ubbelohde viscometer, without the need for disassembly and removal, and can be automatically cleaned, discharged, and dried.