Thermal analysis method for determining silicane mixture content

Abstract

The thermal analysis method for content of silicane mixture comprises: in inertial gas, heating as 10Deg / min till 550Deg and holding for 60min; then, changing into oxygen at 650Deg and holding 60min; obtaining the initial mass M0 and M1 at 105Deg, calculating the content for the low-boil as (M1-M0) / M0*100%, the silicane coupling agent as (M2-M1) / M0*100%, with the final mass M3, the carbon black content as (M3-M2) / M0*100%, and final residual content as M3 / M0*100%. This invention has well accuracy and sensitivity.

Description

technical field [0001] The invention relates to a thermal analysis detection method, in particular to a thermal analysis method for measuring the content of silane mixture by thermogravimetric analysis. Background technique [0002] Silane compound is a new type of mixture of silane coupling agent and carbon black. It is a very important raw material in the production of rubber industry. It is widely used as vulcanizing agent and activator. Due to the existence of two types of functional groups (R-S) in the special molecular structure of the silane coupling agent i x 3 ), the inorganic filler and the rubber can be chemically combined, so that the physical properties of the rubber such as wear resistance, tear resistance, flex resistance and the performance of the finished product are significantly improved, and the production energy consumption is only Half of similar products. However, it is difficult to accurately measure the content of water, ethanol and other low boil...

AI Technical Summary

Problems solved by technology

However, it is difficult to accurately measure the content of water, ethanol and other low boiling point substances, silane coupling agent, carbon black and final residue in the sample silane mixture by conventional methods. The content of components is very necessary

First of all, the content of water and ethanol directly affects the quality of rubber products such as tires. If the content is too high, the finished product will contain many pores, which will make the rubber product easy to break and reduce its service life.

Secondly, most of the final residues come from the silane coupling agent, the more residues, the worse the quality of the silane coupling agent and the worse the production process

Finally, the mixing ratio of carbon black and silane coupling agent is different, which will also affect the quality performance of the product and the energy consumption of production

At present, silane mixtures have been gradually converted from imports to localization, all of which put forward higher requirements for the accuracy and simplicity of the content determination of silane mixtures, and time-consuming and laborious chemical analysis methods such as combustion, titration, extraction, etc. It can no longer meet the needs of production and development, its accuracy is low, and human factors have a greater influence

However, there is no report on the use of thermal analysis methods to determine the content of silane mixtures

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