Determination method and system of organic additive degradation effect in gel phase

Abstract

The invention provides a determination method and system of an organic additive degradation effect in a gel phase. According to a condition of whether a polyhydroxyl polymer is included in an organicadditive, different steps are taken in determination. When the organic additive in the gel phase does not include the polyhydroxyl polymer, determination comprises the following steps of S01, obtaining pyrolysis full two-dimensional chromatograms of the gel phase to be evaluated and a corresponding comparative gel phase; S02, determining whether a total gas phase product content of the gel phase to be evaluated is less than a first preset threshold; and S03, when the total gas phase product content is less than the first preset threshold, determining that a degradation effect of the organic additive in the gel phase reaches a standard. The type and content of the pyrolysis gas phase product of the organic additive in the gel phase are analyzed by a full two-dimensional gas chromatograph ora full two-dimensional gas chromatograph-mass spectrometer to investigate the effect of a degradation method on an organic content in the gel phase. Therefore, the invention provides the rapid and effective determination method and system of the organic additive degradation effect in the gel phase.

Description

technical field [0001] The invention relates to ceramic preparation, and more specifically relates to a method and system for judging the degradation effect of organic additives in a gel phase. Background technique [0002] The sol-gel method is often used to prepare ceramics, films, fibers and composite materials. This method mainly includes processes such as compounding, molding and heat treatment. Among them, forming is to prepare the sol to form a gel with a specific geometry. In order to make the gel have sufficient structural stability and mechanical strength, some additives are often added, such as curing agents (such as hexamethylenetetramine), adhesives, etc. (such as polyvinyl alcohol, poly N methyl methacrylate and urea-formaldehyde resin, etc.) and crosslinking agents (such as tetrahydrofurfuryl alcohol), etc. During heat treatment, these additives will pyrolyze and release a large amount of gas, which will lead to the cracking of materials such as xerogels or ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method and system for judging the degradation effect of organic additives in the gel phase, thereby solving the problem in the prior art that lacks a fast and effective method and system for judging the degradation effect of organic additives in the gel phase

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