Application of a heterophasic propylene copolymer as a storage container
A technology of propylene copolymer and storage container, which is applied to the application field of heterophasic propylene copolymer as storage container, can solve the problems of inability to achieve storage compounds, easy volatilization and the like, and achieve the effect of ensuring product quality
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[0037] Preparation of storage container:
[0038] Using WILLER extrusion blow molding machine, the main process parameters for production are as follows:
[0039] Extrusion head temperature: 180°C-190°C;
[0040] Extrusion screw speed (revolutions per minute; rpm): 11-14rpm;
[0041] Mold temperature: 160°C-170°C;
[0042] Cycle time: 12-16s.
[0043] The storage containers prepared from samples 1#, 2#, 3#, and 4# are respectively marked as 5#, 6#, 7#, and 8#.
Embodiment 1
[0045] Seal the borneol solids in 10 storage containers 5#, 10 storage containers 6#, 10 storage containers 7#, and 10 storage containers 8#, so that they do not come into contact with the outside world, and then take samples once a month, and use gas phase Chromatography carried out headspace sampling to measure the change in the amount of borneol solid matter in the container, and the results are shown in Table 2. As can be seen from Table 2, the amount of borneol solid matter in the container has no significant change, and the difference is not significant.
[0046] The content of borneol was determined by Shimadzu GC 2014-C gas chromatograph.
[0047] Chromatographic conditions and system suitability test: Polyethylene glycol (PEG)-20M is used as the stationary liquid, and the coating concentration is 8%; the column temperature is 120°C±15°C. The number of theoretical plates should not be less than 1000 based on n-octadecane peak.
[0048] Determination of correction fact...
Embodiment 2
[0053] Using ethanol as a solvent, borneol was prepared into a borneol solution with a concentration of 0.06%, and sealed in 10 storage containers 5#, 10 storage containers 6#, 10 storage containers 7#, and 10 storage containers 8#. It is not contacted with the outside world, then sampling at a fixed time, using gas chromatography to detect the change of the borneol concentration in the solution in the container, the results are shown in Table 3, as can be seen from Table 3, the borneol solution concentration in the container does not change, and the difference is not significant.
[0054] Borneol content was determined using a Shimadzu GC 2014-C gas chromatograph.
[0055] Chromatographic conditions and system applicability test: polyethylene glycol (PEG)-20M was used as a fixed solution, and the coating concentration was 8%; the column temperature was 120°C ± 15°C. The number of theoretical plates should not be less than 1000 according to the n-octadecane peak.
[0056] Cor...
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