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Hangzhou Zhongwang Technology Co., Ltd
Date: 2023-11-16Read: 0
Hydroxypropyl methylcellulose (Hypromellose),shrinkWrite HPMC,Also known as hydroxypropyl methylcellulose, it is a type of non-ionic cellulose mixed ether. It is a semi synthetic, inactiveviscoelasticityPolymers, often used inOphthalmologyUsed as a lubricant, or as an excipient or excipient in oral medication.
Hydroxypropyl methylcellulose (HPMC) can be used as a thickener, dispersant, emulsifier, and film-forming agent. Its industrial grade products can be applied in daily chemical industry, electronics, synthetic resins, construction, and coatings.
The molecular weight of HPMC is due toThe total amount composed of its dimensional units. The molecular weight of HPMC varies depending on the number of its units, typically ranging from thousands to hundreds of thousands. Due to differences in molecular weight, the properties and applications of HPMC also vary.
The molecular formula and molecular weight of HPMC are important factors determining its properties and applications. By adjusting them, HPMC can have different functions and applications.
IVS400-6 Fully Automatic Viscometer
The Zhongwang Fully Automatic Viscometer IVS400 is designed with the Ubbelohde Viscometer as its core and complies with relevant standards such as ISO, GB, DIN, etc. Widely used in polymers such as plasticsRelative viscosity, viscosity number, and intrinsic viscosity,molecular weightThe measurement.
Test Process
【1】 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;
【2】 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;
【3】 Viscosity test
IVS400 viscometer, set the desired water tank temperature, add the solution to the Ubbelohde viscometer, open the software, perform automatic testing and calculation, and the computer can automatically store the test data;
【4】 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;
【5】 Clean the viscosity tube
After automatic waste disposal, cleaning reagents are automatically added for automatic cleaning and drying.