Fructus forsythiae volatile oil medical hydrocolloid dressing and preparation method thereof
The technology of hydrocolloid and volatile oil is applied in the preparation of the medicinal hydrocolloid dressing and the field of medicinal hydrocolloid dressing of Forsythia volatile oil, and the effect of obvious economic benefit is achieved.
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[0024] The preparation method of the forsythia volatile oil medicinal hydrocolloid dressing of the present invention is specifically implemented according to the following steps:
[0025] Weigh 0.1%-10% forsythia volatile oil by mass percentage, 1%-20% water-soluble polymer material, 10%-60% rubber base material (including solvent mineral oil), 0.01%-0.2% antibacterial Oxidant, 1%-9.7% foaming agent, 0.1%-87.89% water, the sum of the contents of the above components is 100%,
[0026] First, add an appropriate amount of water to the water-soluble polymer material weighed in the previous step to make it excessively swell, then add forsythia volatile oil to form a phase I solution for later use, then add antioxidants to the rubber base material and stir evenly to form a phase II solution, and mix phase I Mix and stir the solution and phase II solution, add foaming agent and the remaining water and stir well, transfer coating on the base backing material, refrigerate at 4°C for 12...
Embodiment 1
[0030] Take by weight 5% forsythia volatile oil, 10% CMC-Na, 8% PVA, 9.99% water, 60% polyisobutylene rubber (medium hardness type), 0.01% BHT, 7% carbonic acid The mixture of sodium bicarbonate and citric acid, the molar ratio of the mixture of sodium bicarbonate and citric acid is 2:1,
[0031] Take the CMC-Na weighed in the previous step, add a small amount of water to make it swell, then add PVA, stir in a constant temperature water bath at 80°C to dissolve the CMC-Na and PVA, add forsythia volatile oil after cooling and stir evenly, as a phase I solution; Add BHT to the isobutylene rubber, heat the oil bath at high temperature and keep stirring to obtain the mixed solution of the two as the II phase solution; quickly pour the I phase solution into the II phase solution, and keep stirring to fully mix the two, and adjust the mixed solution. For the total dose, add the mixture of sodium bicarbonate and citric acid and the remaining water, stir at 80°C for 20 minutes, after ...
Embodiment 2
[0033] Take by weight 0.1% forsythia volatile oil, 1% carboxymethyl cellulose, 79% water, 5% polyisobutylene rubber (medium hardness type), 5% ethylene propylene rubber, 0.2% BHT, 9.7% mixture of sodium bicarbonate and citric acid, the molar ratio of sodium bicarbonate and citric acid is 2:1.
[0034] Take the carboxymethyl cellulose weighed in the previous step, add a small amount of water and stir to make it swell, then add the volatile oil of forsythia and stir evenly, as a phase I solution; take polyisobutylene rubber and add BHT, heat the oil bath at high temperature and continue to stir to mix, continue to stir Add the phase I solution. Continue to stir until the mixture is uniform, cool, add ethylene propylene rubber, masticate at 115°C for 10 minutes, add the mixture of sodium bicarbonate and citric acid, stir at 80°C for 20 minutes, until a uniform mixture is formed, transfer coating on On the polyurethane film, refrigerate at 4°C for 12 hours, and thaw at room tempe...
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