Meishen Magnesium oxide: CPE cable, adhesive, magnetic materials, butyl rubber plug and other industries
Magnesium oxide for CPE cable
Chlorinated polyethylene, CPE or CM for short, is a polymer material made by chlorination of polyethylene.
CPE has relatively complete skills and functions. As the molecular layout of CPE is linear, full and irregular, it has excellent flexibility, weather resistance, ozone resistance and thermal aging resistance.
At the same time, CPE also has excellent oil resistance, chemical resistance and flame resistance because the molecular layout contains an appropriate amount of chlorine.
CPE has excellent technical processing function and good electrical function, the commonly used rubber processing equipment can be applied, the glue is not easy to burn.
And CPE material even if stored for a few years will not decay, there is vulcanized rubber rubber if the storage conditions are a little better can also be stored for 1-2 years without deterioration.
CPE cable special magnesium oxide can be used in the production process as acid absorption agent, filler, anti-coke agent, sulfurization accelerator, mainly wear resistance, high temperature resistance, corrosion resistance, fire retardant role.
CPE cable has special requirements on magnesium oxide activity, heavy metal content, fineness, black and white point, acid absorption energy, tensile strength, curing speed, high temperature resistance, abrasion resistance, flexibility, brightness, whiteness, anti-foaming, anti-trachoma, anti-scorch, etc.
CPE cable special magnesium oxide is a kind of industry special magnesium oxide tailored to the special requirements of the industry by hebei Meishen chnology co., ltd. to maximize the performance of CPE cable.
Special magnesium oxide adhesive
Adhesive industry index requirements for magnesium oxide is higher, requires large volume, large volume, high activity, good dispersion, no precipitation, fineness of 325 mesh (the same product quality, good fineness, depending on the specific volume larger relative to that, depending on the volume is too large, or low content are likely to form a suspension and ball phenomenon), low content of iron, if excessive amounts of magnesium oxide of iron, easy to cause the glue, the phenomenon of the color red.
Therefore, if you want to avoid the color of adhesive red problem, you need to purchase magnesium oxide, choose low iron magnesium oxide production.
Magnesium oxide for magnetic materials
The role of magnesium oxide is anti-interference, anti-magnetic aging, in the magnetic materials industry is mainly used for color TV deflection coil (ferrite soft magnetic) and other ferrite magnetic materials, can be applied to magnesium zinc soft magnetic ferrite, alumina ceramic substrate, rubber magnetic.
Notes: high purity, less impurities;
Common problems: excessive metal ions or purity can not cause demagnetization and interference;
General do magnetic material, have requirement to sio2.
If the silica exceeds the standard, the resulting product cannot pass through the high/low frequency voltage.
Butyl rubber plug special magnesium oxide
Role: play the role of acid - absorbing agent, vulcanization accelerator.
In general, the whiter and more pure magnesium oxide is, the less impurities there are.
Note: the requirements for mechanical impurities, fineness, heavy metals and black and white spots are very strict, usually no more than 5 black and white spots per 10 grams.
White spots are large particles of magnesium or calcium, while black spots are mostly mechanical impurities or may be produced during calcination or crushing.
If you want to control the point of black and white, first in the selection of raw materials on the classification, after burning finished products to carry out impurity removal classification treatment.
After several processes, magnesium oxide for compound butyl rubber plug can be produced.
Degree of clarification: mainly related to the purity and insoluble hydrochloric acid.
It is also associated with iron, sulfate, chloride, and other impurities.
Under normal circumstances, black and white point and magnesium oxide has nothing to do, by improving the production process, most manufacturers can overcome their own.
Butyl rubber plug vulcanization system is divided into three categories: magnesium oxide system, magnesium oxide vulcanization system, resin system.
The magnesium oxide vulcanization system widely used in the market is the system with the lowest cost and the simplest operation among the three systems.
However, due to the large amount of raw materials, once the quality problem occurs, it is difficult to find out.
Second, although the resin system USES few raw materials, not using magnesium oxide can easily lead to leakage.
Therefore, the use of resin system manufacturers are relatively few.