Method for measuring glass transition temperature of cigarette filter tip adhesive
The invention discloses a method for measuring the glass transition temperature of a cigarette filter tip adhesive, and belongs to the technical field of cigarette twisting and connecting processes. The method comprises the following steps: 1, standing a cigarette filter tip adhesive in an environme...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a method for measuring the glass transition temperature of a cigarette filter tip adhesive, and belongs to the technical field of cigarette twisting and connecting processes. The method comprises the following steps: 1, standing a cigarette filter tip adhesive in an environment with a temperature of 20-25 DEG C and a humidity of 45-55% for 1-3 hours, then drying the cigarette filter tip adhesive at a temperature of 40-100 DEG C for 2-8 hours, and tabletting for later use; and 2, placing the pressed tablet in a calorimetric pool in a DSC measuring instrument, cooling to -45 to -35 DEG C at a rate of 5-20 DEG C/min in a nitrogen atmosphere, keeping the temperature constant for 3-10 min, then heating to 80-100 DEG C at the same rate, keeping the temperature constant for 3-10 min, obtaining a DSC curve graph of the cigarette filter tip adhesive after the measurement is finished, and analyzing and processing glass transition information on the DSC curve to obtain the glass transition temper |
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