Preparation method of transparent self-adaptive shape memory polymer anti-wrinkle body film solution

Abstract

The invention discloses a preparation method of a transparent self-adaptive shape memory polymer anti-wrinkle body film solution. The preparation method comprises the following steps: conducting drying treatment on DMF (dimethyl formamide) by virtue of a molecular sieve (as shown in Description), so that dried DMF is obtained, vacuum dehydrating liquid PCL (polycaprolactone) in a reaction container, then adding the dried DMF and MDI (diphenylmethane diisocyanate) under a condition of argon protection, and conducting reacting under stirring at 70-80 DEG C for 1.5-2.5h, so that a prepolymer is obtained; adding 1,4-BDO (1,4-butanediol) and the dried DMF to the prepolymer, and conducting a chain extension reaction under a condition of 70-80 DEG C, so that a linear SMPU (shape memory polyurethane) solution which contains 13-18% of solids is obtained; uniformly coating a glass plate with the linear SMPU solution, performing drying in an oven at 70-100 DEG C for 12-15h, and conducting placing at room temperature for 22-26h, so that shape memory polyurethane is obtained; and adding the shape memory polyurethane and the dried DMF to a reaction flask, preparing a solution which contains 5-10% by mass of the shape memory polyurethane, and performing magnetic stirring until the polyurethane is completely dissolved, so that the shape memory polymer anti-wrinkle body film solution is obtained.

Description

technical field [0001] The invention relates to a preparation method of a transparent self-adaptive shape memory polymer wrinkle-removing body film solution, which belongs to the technical field of body film preparation. Background technique [0002] The facial mask or body mask on the existing market is to use the short time covered on the face or related limbs to temporarily isolate the air and pollution from the outside world, increase the temperature of the skin, expand the pores of the skin, promote the secretion and metabolism of sweat glands, and make the skin more hydrated. The increase in oxygen level is beneficial for the skin to eliminate the products of epidermal cell metabolism and accumulated oily substances. The moisture in the mask or body mask penetrates into the stratum corneum of the epidermis, making the skin soft and naturally bright and elastic. There are mainly four types of facial masks or body masks: mud cream type, tear-off type, jelly type, and wet...

AI Technical Summary

Problems solved by technology

[0003] Various existing membranes require long-term use and are prone to dependence

Because it is a maintenance type, the film can only make the skin shiny and soft for a short time after use, and there is no way to remove the wrinkles caused by fatigue and aging

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