Glazing compound raw material analysis process

Abstract

The invention discloses a glazing compound raw material analysis process, comprising a determination method of a hydroxyl value in polyether polyol. The method comprises the following steps: step S1,weighing 116g of phthalic anhydride and putting into a 1L brown bottle, adding 700mL of pyridino and shaking fiercely until pyridino is dissolved, adding 16g of imidazole and shaking carefully until imidazole is dissolved, wherein the solution needs to stand to stay overnight before use to prevent absorption of moisture by exposure in air for a long time; and S2, abandoning the reagent when the color is deepened. In blank titration, 25ml of such reagent needs to consume 95ml-100ml of 0.5mol / L sodium hydroxide standard titration solution, and the production rate is saved by 2-3 hours; furthermore, the accuracy is improved, calibration is not needed, manpower and material resources are saved, the calculated result is the actual measurement result, great convenience is brought for productionand analysis, a certain value is achieved in actual analysis and production, the material is analyzed more reasonably, the quality of the glazing compound in later period is improved, and the problemof untight sealing of the glazing compound in the later period is prevented.

Description

technical field [0001] The invention relates to the technical field of glass sealant raw material analysis, in particular to a glass sealant raw material analysis process. Background technique [0002] Glass sealant is a one-component, low modulus, acid-cured, multi-purpose high-grade silicone sealant, suitable for general sealing of glass and other materials. Substrates must be tested for adhesion, compatibility and contamination prior to use. The effect of the product depends on the specific substrate and method of use. [0003] However, the glass sealant raw material analysis process currently on the market has a slow production speed and low accuracy, requiring calibration, which wastes manpower and material resources. The calculated results are not actual measurement results, which brings great inconvenience to both production and analysis. , the raw materials cannot be analyzed reasonably, which reduces the quality of itself and the glass sealant in the later stage, ...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a raw material analysis process for glass sealant, which can effectively solve the slow production speed and low accuracy rate of the process proposed in the above background technology. Calibration is required, which wastes manpower and material resources. The analysis and analysis have brought great inconvenience, and the raw materials cannot be analyzed reasonably, which reduces the quality of itself and the glass sealant in the later stage, resulting in the problem of poor sealing of the glass sealant in the later stage.

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