Disposable degradable self-nutritive lightweight flower pot and preparation method thereof
A disposable flowerpot technology, which is applied in botany equipment and methods, horticulture, container cultivation, etc., can solve the problems of not being able to give raw materials to plants, heavy dust pollution, and insufficient water resistance of flowerpots, etc., so as to achieve convenience for daily use, The temperature difference adapts to a large range and is convenient for delivery and transportation
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Embodiment 1
[0033] Example 1 Preparation of disposable degradable lightweight flower pots
[0034] 1) Weigh a certain amount of PVA and add it to the beaker, add distilled water with a mass of 8 to 9 times that of PVA in total (distilled water is added several times during the swelling process), put the beaker in a water bath, heat it to 40°C and stir it at a low speed with the rotor for 40°C Swell for more than 10 minutes (if the PVA is directly dissolved at high temperature, there will be bag-like and skin-dissolved endogenous phenomena, which cannot be dissolved normally) until the volume of PVA increases to about 7 times of the beginning, and the color becomes blue-gray. Raise the temperature of the water bath to 98°C, increase the stirring rate and stir for 1 hour, and then completely dissolve the PVA in the water;
[0035] 2) Take another beaker, add a certain amount of starch and insect droppings into it, add some water and stir evenly, then mix the starch and insect dropping suspe...
Embodiment 2
[0053] Example 2 Determination of Group Distribution Ratio
[0054] Experiments were carried out according to the proportion of components shown in Table 2 to obtain several groups of samples, and their hardness, brittleness, appearance and cost were evaluated.
[0055] Table 2 Distribution ratio test data
[0056]
[0057] Among these groups of samples, sample 3 has the best performance and appearance, and sample 6 is not bad.
Embodiment 3
[0058] Embodiment 3 Determination of the amount of crosslinking agent epichlorohydrin
[0059] Epichlorohydrin can cross-link modified starch and PVA under alkaline conditions. In order to determine the amount of cross-linking agent, it is possible to control the ratio of PVA starch insect feces and change the amount of cross-linking agent within a suitable range. According to the experimental steps of the above-mentioned chemical cross-linking method, the sample is manufactured, and after it is dried, compare the apparent properties of the sample to roughly determine the amount of cross-linking agent. The detection data are shown in Table 3:
[0060] Table 3 Selection of crosslinking agent dosage
[0061]
[0062] It can be seen from Table 3 that the water absorption rate of the third group of samples is the lowest, the hardness is good, and the toughness is not much different from that of other groups, so the dosage of the third group of crosslinking agent is the most ap...
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