Organosilicone dehydration device

Abstract

The invention discloses an organosilicone dehydration device, comprising a dehydration kettle, a nitrogen tube, a vacuum kettle and a heating cover, wherein one end of the nitrogen tube is arranged inside the dehydration kettle in a penetrating manner; the nitrogen tube is arranged outside the dehydration kettle and connected with a circulating pump; one section of the vacuum kettle is connected with the circulating pump through a pipeline; the other end of the vacuum kettle is connected with a dehydration pump through the pipeline; the heating cover is sleeved at the outer side of the dehydration kettle. A trace of moisture in a raw material is obviously reduced, and is less than 10ppm in general after the organosilicone dehydration device disclosed by the invention carries out dehydration treatment; the adding amount of an end socket agent in a high-temperature polymerization process is gradually stabilized; the molecular weight of rubber aggregation is stable. The end-group quantity is greatly reduced when a high-temperature rubber product is synthetized; molding is obvious quick when mixing processing is carried out; the storage time, the physical and mechanical properties and the processability of a rubber compound product are improved.

Description

technical field [0001] The invention relates to the field of organic silicon equipment, in particular to an organic silicon dehydration device. Background technique [0002] In the production process of organic silicon raw materials, the removal of trace water is one of the key processes. The dehydration effect directly affects the effect of polymerization. The trace moisture contained in the raw material methyl mixed ring will be transformed during the synthesis process. Forming a polymer terminated by a control group, the first is to affect the molecular weight of the methyl vinyl silicone rubber polymer, resulting in the phenomenon of "not too large"; the second is that the storage time of the mixed rubber obtained after the silicone rubber is mixed becomes shorter: The third is that it has a great impact on the properties of silicone rubber mixing products. In addition, due to the existence of terminal groups in the polymer molecular chain, it is difficult to mix silicon...

AI Technical Summary

Problems solved by technology

The heating method is to use hot water through the outer jacket of the kettle to raise the temperature, but the dehydration effect of this method is not very ideal. Generally, the residual trace moisture is above 100ppm, and even open water appears in serious cases, which cannot meet the production of high-quality methyl vinyl silicone rubber. polymer requirements

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