Spontaneous fluid transport dressing based on continuous asymmetric super-hydrophilic channel and preparation method of spontaneous fluid transport dressing
A hydrophilic channel, super-hydrophilic technology, applied in dressings, adhesive dressings, non-adhesive dressings, etc., can solve the problems of secondary infection of the wounded, slow wound healing, inability to discharge, and inability to achieve continuous discharge of extravasated liquid.
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Embodiment 1
This example is used to illustrate the effect of the composition ratio of the hydrophilic coating on its hydrophilic performance, and a blank control group is set at the same time.
[0039] The raw material components of the hydrophilic coating were mixed to prepare a coating solution. The component ratios of the examples and comparative examples are shown in Table 1. The polyester sheet was soaked in the coating solution for 10 min and then taken out and dried to obtain a surface coated with a hydrophilic coating. Water-coated polyester sheet, the contact angle of the polyester sheet coated with a hydrophilic coating on the surface is measured, and the measurement method is as follows:
The measuring device is a contact angle measuring instrument SDC-200 produced by SFMIT. Deionized water was used in the contact angle determination.
[0040] The specific operation method is as follows: set the volume of water droplets discharged from a micro syringe (manufactured by SFMIT, wi...
Embodiment 2
[0045] (2) Preparation of spontaneous fluid transport dressings based on continuous asymmetric channels
Embodiment 3
[0047] (2) Preparation of spontaneous fluid transport dressings based on continuous asymmetric superhydrophilic channels
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