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Hangzhou Zhongwang Technology Co., Ltd
Date: 2024-09-09Read: 0
Stickiness, characteristic stickiness
According to HG-T 3605-1999, high temperature is used for the determination of dilute solution, viscosity and intrinsic viscosity of chloroether resinUbbelohde viscometerMeasure the flow time of solvents and solutions, and calculate the viscosity and intrinsic viscosity based on the flow time and solution concentration.
The viscosity of products during the production process is an important indicator that affects product quality. Ubbelohde capillary in industry standardsUsing the characteristic viscosity of a dilute solution of polyvinyl chloride resin in tube testing as an example, the entire experimental process will be explained.
Chloroether resinyesvinyl chloride-The abbreviation for vinyl isobutyl ether resin is VC-IBVE. It is composed of 75%vinyl chlorideCo polymerized with 25% vinyl isobutyl etherPolymer.Chlorinated ether resin has characteristics such as weather resistance, light resistance, aging resistance, and corrosion resistance, and is widely used in fields such as ink, coatings, and adhesives.
With the increasing pressure on national environmental protection, driven by mandatory environmental regulations, ChinaWater based anti-corrosion coatingRapid development. Prohibition of carbon tetrachloride production process in 2004Chlorinated rubberThe production of chlorinated rubber is facing a huge crisis, and chlorinated ether resin, as a base material for heavy-duty anti-corrosion coatings to replace chlorinated rubber, has a very broad prospect due to its price and environmental advantages.
At present, the main production methods of chloroether resin areincludingLotion polymerizationandSuspension method.The intrinsic viscosity of polymersrelativemolecular massLordIt depends onAggregation temperatureThe concentration of emulsifiers and initiator systems has little effect on the intrinsic viscositytoAggregation rateThe impact is not significant.
IVS800 Fully Automatic Ubbelohde Viscosity Measurement System
Test Process
01
Weigh a certain sample of chloroether resin using a one ten thousandth scale,Put it into the dissolution bottle and use the DP25 automatic liquid dispenser (with a transfer accuracy of ≤ 0.1%)Transfer quantitative mixed solventTransfer to the dissolution bottle;
02
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;
03
Place the dissolution bottle of the device's polyvinyl chloride resin sample into the IVS800 sample tray with a pre-set water tank temperature of (50 ± 0.01) ℃, activate the testing function, and automatically obtain the test results;
04
The IVS800 fully automatic viscosity measurement system is connected to the computer end, which can automatically obtain test results and store them for diversified viscosity data analysis;
05
The viscosity tube is fixed in the constant temperature water bath of IVS800 viscosity analyzer, without the need for disassembly and removal, and can be automatically cleaned, discharged, and dried.