New carbon nanotube We all know that darkness occurs in the absence of light. The presence of colors on surfaces and objects is actually due to the light of seven colors that shines on them , We all know that darkness occurs in the absence of light. The existence of colors on surfaces and objects is actually due to the light […]
Carbon black and Rubber Carbon black (CB) and silica have been used as the main reinforcing fillers used to increase the performance of rubber. Since each filler has specific advantages, the use of silica/CB compounds improves the dynamic and mechanical properties of natural rubber vulcanization. However, the optimum ratio of silica to CB must be refined to provide optimum properties […]
In the past, soot, which is similar to carbon black, was used to write papyrus letters in ancient Egypt and bamboo strips in ancient China. The production of carbon black was a type of cottage industry initiative when the method of paper production was discovered in the second century. After the canal process in 1892 and from the mid-1970s, most […]
Vegetable carbon black is a type of natural edible color that is produced from plant materials such as coconut skin or from green bamboo, refined by the carbonization process at high temperature. Its production is through steam activation. Steam activation is achieved by charring vegetable fibers. To achieve this process, raw materials such as nut shells, peat, wood and cellulose […]
Urea price uptrend In China and India, urea production is coal-based. After China and India, other major urea producing countries have good natural gas reserves. More than 80% of the urea produced is used in the preparation of chemical fertilizers containing nitrogen. A small percentage of urea is also used to produce chemical compounds such as plastics, adhesives such as […]
At the beginning of planting walnut seedlings, the first concern that occupies the mind of the farmer or gardener is to make the walnut trees fertile. What the quality of the final fruit is, is directly dependent on the activities that are carried out from the time of planting seedlings to the time of harvesting its products. Fertilization is one […]