Beijing Hako specializes in productionXR-14QLatex stability tester

The model isXR-14Q Latex Stability TesterCompliant with《GBT 8301-2008Concentrated natural rubber latex Measurement of Mechanical Stability "and《SHT 1151-1998The standard requires the determination of high-speed mechanical stability of synthetic latex. This instrument is mainly suitable for latex production units and research institutes to conduct mechanical stability tests on natural latex and synthetic latex, and is an instrument for improving the quality of latex. Produced by my factoryXR-14Q​Low work noise, long service life, both natural and synthetic latex can be tested, easy to use, and accurate in testing.

XR-14Q​Testing method:
Firstly, use an ammonia solution to100gDilute the sample to achieve a solid content equal to the total mass fraction55%Then immediately use a heating device to heat the sample to36~37℃Gently stir at the same time. Then immediately filter the heated latex using a stainless steel wire mesh and weigh it80gPlace the latex in the container and verify that the temperature of the latex should be within35℃±1℃Place the latex in the designated position of the instrument for high-speed stirring, and start timing until the endpoint is reached. The agitator speed should be within the range of14000r/min±200r/minEquipped with a cooling pump, it can greatly improve the service life of the instrument. At the same time, it is equipped with a tachometer and timing equipment, making the experiment more accurate.
High speed machine stabilizerJudgment of the endpoint：
1Palm technique: The judgment method is every15STake a drop of latex sample with a clean glass rod and gently place the sample on your palm. The endpoint is when * coagulation particles appear. To confirm that the endpoint has been reached, the mixing device can be used to stir again15SThen take a sample, and if there is an increase in floc particles in the sample, it indicates that the endpoint determination is correct.
2Water surface dispersion method:Take one to accommodate100~150mLA flat bottomed dish with water is placed on a black surface. Use a sharp glass rod to take a small droplet of the sample and immediately place it on the surface of the flat bottomed dish. If the latex does not coagulate, it will disperse into the water in a few seconds and appear as a milky white cloud. If the latex coagulates, it is easy to see the coagulated particles after the sample is dispersed into the water.

XR-14Q​Main technical parameters:
1Usage conditions: Temperature10℃～40℃ Humidity<85%RH
2Mixing speed:14000rpmShi200rpm
3Latex container: flat bottomed glass bucket, high>100mm, inner diameter58mm, outer diameter63mm.
4Low end diameter of mixing rod:6.3mm
5Mixing plate:
5.1 diameter36.12±0.03mm, thickness1.57±0.05mm(Suitable for synthesizing latex)
5.2 diameter20.83±0.03mm, thickness1.57±0.05mm(Suitable for natural rubber latex)
6Indication error≤0.1%
7Measurement resolution:1 r/min
8Display mode: frequency converterLEDdisplay
9Zui High Speed:20000r/min
10Zui low speed:2000r/min
11Power Supply:220VShil0%、50H2、1500W
12External dimensions:400mm×350mm×720mm
The high-speed motor is the core electrical component of the instrument, and the instrument is equipped with a cooling pump, which can greatly improve the service life of the high-speed motor.

Instrument usage guide:

After unpacking and removing the instrument, place it on the workbench. Rotate the feet to ensure that each foot is in stable contact with the workbench. Turn on the power and select the disc you need, tighten it onto the mixing shaft, pour the latex to be tested into a glass cup, place the cup on the instrument cup holder, move the cup holder to a fixed position and clamp it tightly. Click the "RUN" button on the controller to start the experiment. The default maximum speed of the instrument is 14000r/min (the maximum speed knob is set to 14000), which can be reached by setting it separately~~~~~~~~