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Application of a kind of hydroxyl-terminated polymer in the preparation of multifunctional polyurethane soft foam dressing

A hydroxyl-terminated polymer and polyurethane soft foam technology, which can be used in drug delivery, bandages, absorbent pads, etc., and can solve the problem of single function of polyurethane soft foam dressings

Active Publication Date: 2022-01-28
JIANGSU OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a method for preparing a multifunctional polyurethane soft foam dressing in order to solve the problem of single function of the existing polyurethane soft foam dressing

Method used

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  • Application of a kind of hydroxyl-terminated polymer in the preparation of multifunctional polyurethane soft foam dressing
  • Application of a kind of hydroxyl-terminated polymer in the preparation of multifunctional polyurethane soft foam dressing
  • Application of a kind of hydroxyl-terminated polymer in the preparation of multifunctional polyurethane soft foam dressing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation of embodiment 1 multifunctional polyurethane soft foam dressing-1

[0034] Step 1, preparation of functional foaming component (A-1)

[0035] Weigh successively the weight-average molecular weight produced by Jiangsu Haian Petrochemical Factory as 12 grams of hydroxyl-terminated polyethylene glycol monomethyl ether of 2000, 12 grams of single-terminated hydroxyl polyvinylpyrrolidone with a weight-average molecular weight of 3800, and the formula of 2200 weight-average molecular weight Bromide N-(hydroxyl-terminated polyethylene glycol-2000)-N-dodecyl-N,N-dimethylammonium with the structure shown in (I-1) 22 grams, sodium lauryl sulfate 4 g, Add 4 g of Dow Corning 198 silicone surfactant and 8 g of purified water together into a blender, and stir at room temperature for half an hour to prepare the functional foaming component (A-1).

[0036]

[0037] Step 2, the preparation of polyurethane prepolymer (B-1)

[0038] Add 76 grams of polyethylene glycol...

Embodiment 2

[0041] The preparation of embodiment 2 multifunctional polyurethane soft foam dressing-2

[0042] According to the method and operation steps of Example 1, the brominated N-(hydroxyl-terminated polyethylene glycol-2000)-N-dodecyl- N,N-dimethylammonium is replaced by N-(hydroxyl-terminated polyethylene glycol-2000)-N-benzyl-N,N-dimethylammonium chloride of the structure shown in formula (I-2), that is Prepare multifunctional polyurethane soft foam dressing-2.

[0043]

Embodiment 3

[0044] The preparation of embodiment 3 multifunctional polyurethane soft foam dressing-3

[0045] According to the method and operation steps of Example 1, the brominated N-(hydroxyl-terminated polyethylene glycol-2000)-N-dodecyl- N,N-dimethylammonium is replaced by the chloride N-(terminated hydroxyl polyethylene glycol-2000)-N-benzyl-N,N-dimethylammonium of structure shown in formula (I-2); Step In the second, the polyether diol-2000 with a weight average molecular weight of 2000 was replaced with polytetrahydrofuran diol-3000 produced by BASF Company, and the multifunctional polyurethane soft foam dressing-3 was prepared.

[0046]

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Abstract

The invention discloses an application of a hydroxyl-terminated polymer in the preparation of a multifunctional polyurethane soft foam dressing, which comprises hydrophilic substances including hydroxyl-terminated polyethylene glycol alkyl ether, single-terminated hydroxyl polyvinylpyrrolidone and hydroxyl-terminated polyether quaternary Mix ammonium salt with surfactant and water to make functional foaming component A; then react polyether polyol, chain extender and catalyst with polyisocyanate to prepare polyurethane prepolymer component B; The flexible foaming component A and the polyurethane prepolymer component B are mixed and foamed to prepare a multifunctional polyurethane soft foam plastic, which is used to produce a product with the functions of hydrophilicity, water absorption, moisturizing, antibacterial, sterilizing, hemostasis, and promoting healing. Medical dressing.

Description

technical field [0001] The invention relates to the application of a hydroxyl-terminated polymer in the preparation of multifunctional polyurethane flexible foam dressings, in particular to the preparation of hydroxyl-terminated polyethylene glycol monohydrocarbyl ether, single-terminated hydroxyl polyvinylpyrrolidone, and hydroxyl-terminated polyether quaternary ammonium salts. The application of the polyurethane soft foam dressing with the functions of hydrophilicity, water absorption, moisturizing, antibacterial, sterilizing, hemostasis, and promoting healing belongs to the field of medical functional polymer materials. Background technique [0002] Polyurethane (PU) is a general term for a class of macromolecular polymers containing urethane (-NHCOO-) repeating units in the main chain. It is usually produced by polyaddition reactions between polyols and polyisocyanates. Segment copolymers in various forms, including polyurethane elastomers, polyurethane fibers, polyureth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/12C08G18/66C08G18/48C08G18/32C08G18/50C08G18/62A61L15/26A61L15/42A61L15/46C08G101/00
CPCC08G18/12C08G18/6677C08G18/4833C08G18/3206C08G18/4854C08G18/482C08G18/5021A61L15/26A61L15/42A61L15/46A61L2400/04A61L2300/404A61L2300/208C08G18/2835C08G18/285C08G18/2855C08L75/08
Inventor 斯琴高娃于法港王正建陈星月张田林
Owner JIANGSU OCEAN UNIV
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