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About Us
Hangzhou Zhongwang Technology Co., Ltd
Date: 2023-10-17Read: 0
Hydroxypropyl methylcellulose, also known as hydroxypropyl methylcelluloseHPMC, abbreviated as HPMC, is a type of non-ionic cellulose ether. It is a semi synthetic, inactiveviscoelasticityPolymers, often used inOphthalmologyUsed as a lubricant, or as an excipient or excipient in oral medication.
Intextile industryUsed asthickener、dispersant、Adhesive、excipientOil resistant coatings, fillersemulsifierandstabilizer. It is also widely used insynthetic resin、petrochemicalIndustries such as ceramics, papermaking, leather, pharmaceuticals, food, and cosmetics.
The method for determining the viscosity of hydroxypropyl methyl cellulose (DB13T/1219-2010) specifies that lower viscosity samples should be measured using an Ubbelohde viscometer.
IVS400 Fully Automatic Viscometer
The Zhongwang Fully Automatic Viscometer IVS400 is designed with the Ubbelohde Viscometer as its core, complying with relevant standards such as ISO, GB, DIN, etc. It realizes fully automated testing processes such as automatic cleaning, automatic measurement, automatic calculation, automatic waste discharge, and automatic drying, and the timing accuracy can be precise within 0.001s. It provides a stable and uniform temperature field of ≤± 0.01 ℃ for testing, ensuring the accuracy of experimental data.
measurement process
weighing
Weigh a sample of hydroxypropyl methylcellulose (HPMC) using a one ten thousandth balance and place it in a dissolution bottle. Use a DP25 automatic liquid dispenser (with a transfer accuracy of ≤ 0.1%) to transfer a quantitative solution into the dissolution bottle;
Dissolve sample
Place the dissolution bottle into the P12 Zhongwang Polymer Dissolver (which can dissolve multiple samples simultaneously), and use magnetic stirring to dissolve the samples at the specified temperature and time;
Viscosity Test
IVS400 viscometer, set the desired water tank temperature (20 ℃± 0.01 ℃), add the solution to the Ubbelohde viscometer, open the software, perform automatic testing and calculation, and the computer can automatically store the test data;
Test results
The IVS400 fully automatic viscosity analyzer is connected to the computer end, which can automatically obtain test results and store them for diversified viscosity data analysis;
Clean the viscosity tube
After automatic waste disposal, cleaning reagents are automatically added for automatic cleaning and drying.