China's Chang'e-5 probe landed on the moon
The Chinese lunar exploration project Chang'e 5 successfully implemented a lunar soft landing at about 11 pm on December 1st, Beijing time. The lander and the ascender assembly completed the lunar drilling sampling and packaging work at 4:53 pm on December 2nd. , Is currently sampling as planned.
The goal of the Chang'e-5 mission is to bring the lunar rocks and dust back to the earth for analysis.
The landing target of Chang'e 5 is to approach the near ground of the high volcano Mons Rümker located in the Oceanus Procellarum (Oceanus Procellarum).
In the next two days, the lander is expected to survey its surroundings and collect materials on the lunar surface.
To carry out this task, Chang'e-5 is equipped with a camera, spectrometer, radar, a mechanical digging arm for surface sampling and a drilling tool for drilling sampling.
The lander plans to seal and encapsulate the 2 kg lunar soil, and then rendezvous and dock with the orbiter and returner assembly, and deliver the samples to the returner, which will then be returned to the earth.
The last time humans completed this task was 44 years ago. At that time, the Soviet Lunar 24 probe brought back less than 200 grams of samples from the moon.
WELLDONE cellulose ether provides key properties for gypsum-based mortar:
1. High water retention;
2. Fast dissolution speed and good adhesion;
3. Easy to pump and anti-sagging;
4. Easy to apply and light up.