A kind of preparation method of litchi cling film masterbatch containing rare earth complex
A technology of rare earth complexes and rare earth compounds, which is applied in the field of preparation of functional plastic film master batches, can solve the problems of high capital, equipment and land investment requirements, and achieve the effects of strengthening antibacterial and fresh-keeping effects, material safety, and abundant resources
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Embodiment 1
[0037] 1. Preparation of rare earth complexes
[0038]The components of the masterbatch consist of 5.96kg of linear low-density polyethylene, 1.5kg of tourmaline powder, 2.0kg of rare earth complexes, 0.3kg of diatomaceous earth, 0.11kg of oleic acid amide, and 0.13kg of sodium stearate.
[0039] Masterbatch is prepared according to the following steps:
[0040] (1) Dissolve 2kg chitin in 60L acetic acid solution, stir evenly, add 80L methanol, the solution is no longer viscous, add 1L acetic anhydride, react at 30°C for 1 hour, add the viscous liquid obtained from the reaction to 150L In ethanol, a precipitate is formed, the solid is filtered out, washed three times with absolute ethanol, dissolved in acetic acid solution, and the insoluble matter is filtered off to obtain an acetylated chitosan solution.
[0041] (2) According to the molar ratio of lanthanum, yttrium, samarium, and cerium ions is 2.95:0.5:1.25:1.00, respectively weigh lanthanum nitrate, yttrium nitrate, sam...
Embodiment 2
[0050] The components of the masterbatch consist of 5.82kg of linear low-density polyethylene, 1.2kg of tourmaline powder, 2.4kg of rare earth complexes, 0.35kg of diatomaceous earth, 0.12kg of oleic acid amide, and 0.11kg of sodium stearate.
[0051] Masterbatch is prepared according to the following steps:
[0052] 1. Preparation of rare earth complexes
[0053] (1) Dissolve 2kg chitin in 60L acetic acid solution, stir evenly, add 80L methanol, the solution is no longer viscous, add 1L acetic anhydride, react at 30°C for 1 hour, add the viscous liquid obtained from the reaction to 150L In ethanol, a precipitate is formed, the solid is filtered out, washed three times with absolute ethanol, dissolved in acetic acid solution, and the insoluble matter is filtered off to obtain an acetylated chitosan solution.
[0054] (2) According to the molar ratio of lanthanum, yttrium, samarium, and cerium ions is 2.95:0.5:1.25:1.00, respectively weigh lanthanum nitrate, yttrium nitrate, s...
Embodiment 3
[0061] The components of the masterbatch consist of 6.08kg of linear low-density polyethylene, 1.2kg of tourmaline powder, 2.2kg of rare earth complexes, 0.3kg of diatomaceous earth, 0.11kg of oleic acid amide, and 0.11kg of sodium stearate.
[0062] Masterbatch is prepared according to the following steps:
[0063] 1. Preparation of rare earth complexes
[0064] (1) Dissolve 2kg chitin in 60L acetic acid solution, stir evenly, add 80L methanol, the solution is no longer viscous, add 1L acetic anhydride, react at 30°C for 1 hour, add the viscous liquid obtained from the reaction to 150L In ethanol, a precipitate is formed, the solid is filtered out, washed three times with absolute ethanol, dissolved in acetic acid solution, and the insoluble matter is filtered off to obtain an acetylated chitosan solution.
[0065] (2) According to the molar ratio of lanthanum, yttrium, samarium, and cerium ions is 2.95:0.5:1.25:1.00, respectively weigh lanthanum nitrate, yttrium nitrate, sa...
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