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Chitosan/polyurethane composite material and method for preparing same

A composite material and chitosan technology, applied in the field of organic materials, can solve the problems of poor wet mechanical properties and limited application of chitosan

Inactive Publication Date: 2016-08-17
王泽陆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water absorption of chitosan itself is extremely strong, and the wet mechanical properties of chitosan materials formed are poor, which limits the application of chitosan.

Method used

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  • Chitosan/polyurethane composite material and method for preparing same

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The chitosan / polyurethane composite material described in this embodiment includes the following components in parts by weight: 38 parts of chitosan, 16 parts of polyurethane, 4 parts of polypropylene, 2 parts of potassium magnesium phosphate, 3 parts of dragite, seaweed 6 parts of sodium bicarbonate, 3 parts of barium carbonate, 5 parts of tripropylene glycol diacrylate, 3 parts of phosphate methacrylate, 5 parts of polyglycerol ricinoleate, 1 part of ammonium molybdate, ethylenediamine tetramethylene phosphine 3 parts of sodium phosphate, 2 parts of methyl orthosilicate, 2 parts of tea saponin, 58 parts of acetic acid and 76 parts of water.

[0022] The molecular weight of the chitosan is 5000-30000.

[0023] The preparation method of chitosan / polyurethane composite material described in the present embodiment may further comprise the steps:

[0024] (1) Add chitosan to acetic acid, stir to dissolve, and dialyze in distilled water overnight;

[0025] (2) Add potassi...

Embodiment 2

[0029] The chitosan / polyurethane composite material described in the present embodiment comprises the components of the following parts by weight: 55 parts of chitosan, 27 parts of polyurethane, 9 parts of polypropylene, 7 parts of potassium magnesium phosphate, 8 parts of dragite, seaweed 13 parts of sodium bicarbonate, 9 parts of barium carbonate, 11 parts of tripropylene glycol diacrylate, 10 parts of phosphate methacrylate, 11 parts of polyglycerol ricinoleate, 5 parts of ammonium molybdate, ethylenediamine tetramethylene phosphine 8 parts of sodium phosphate, 6 parts of methyl orthosilicate, 10 parts of tea saponin, 70 parts of acetic acid and 90 parts of water.

[0030] The molecular weight of the chitosan is 5000-30000.

[0031] The preparation method of chitosan / polyurethane composite material described in the present embodiment may further comprise the steps:

[0032] (1) Add chitosan to acetic acid, stir to dissolve, and dialyze in distilled water overnight;

[003...

Embodiment 3

[0037] The chitosan / polyurethane composite material described in the present embodiment comprises the following components in parts by weight: 46 parts of chitosan, 21 parts of polyurethane, 6 parts of polypropylene, 4 parts of potassium magnesium phosphate, 5 parts of dragite, seaweed 10 parts of sodium bicarbonate, 6 parts of barium carbonate, 8 parts of tripropylene glycol diacrylate, 6 parts of methacrylate phosphate, 8 parts of polyglycerol ricinoleate, 3 parts of ammonium molybdate, ethylenediamine tetramethylene phosphine 5 parts of sodium phosphate, 4 parts of methyl orthosilicate, 6 parts of tea saponin, 64 parts of acetic acid and 78 parts of water.

[0038] The molecular weight of the chitosan is 5000-30000.

[0039] The preparation method of chitosan / polyurethane composite material described in the present embodiment may further comprise the steps:

[0040] (1) Add chitosan to acetic acid, stir to dissolve, and dialyze in distilled water overnight;

[0041] (2) A...

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Abstract

The invention discloses a chitosan / polyurethane composite material and a method for preparing the same. The chitosan / polyurethane composite material comprises, by weight, chitosan, polyurethane, polypropylene, magnesium potassium phosphate, rectorite, sodium alginate, barium carbonate, tripropylene glycol diacrylate, methacrylic acid organophosphate, polyglycerol polyricinoleate, ammonium molybdate, sodium ethylenediamine tetramethylene phosphonate, tetramethyl orthosilicate, tea saponin, acetic acid and water. The chitosan / polyurethane composite material and the method have the advantages that the tensile strength of the chitosan / polyurethane composite material is 35.2-38.3 MPa before the chitosan / polyurethane composite material is soaked in water, and the breaking elongation of the chitosan / polyurethane composite material is 9.3-10.4% before the chitosan / polyurethane composite material is soaked in the water; more than 95% of the tensile strength of the chitosan / polyurethane composite material still can be kept after the chitosan / polyurethane composite material is soaked in the water for 24 h, more than 90% of the breaking elongation of the chitosan / polyurethane composite material still can be kept after the chitosan / polyurethane composite material is soaked in the water for 24 h, accordingly, the problem of poor mechanical properties of the traditional chitosan materials in wet states can be solved, and the chitosan / polyurethane composite material and the method have good market prospects.

Description

technical field [0001] The invention belongs to the field of organic materials, and in particular relates to a chitosan / polyurethane composite material and a preparation method thereof. Background technique [0002] Biomaterials are materials that treat and replace damaged tissues and organs or enhance their functions in living organisms. With the development of material science, life science and biotechnology, more and more biological materials have been widely used. Among them, bioceramic materials, polymers and their composite materials are the most widely used. [0003] Chitosan, also known as deacetylated chitin, is obtained through deacetylation of chitin, which exists widely in nature. Chitosan has the advantages of good biocompatibility, low toxicity, sterilization, anti-inflammation, promotion of cell adhesion and value addition, etc., and has great application prospects in the field of biomedicine. However, the water absorption of chitosan itself is extremely st...

Claims

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Application Information

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IPC IPC(8): C08L5/08C08L75/04C08L23/12C08L5/04C08L71/08C08K13/02C08K3/32C08K3/34C08K3/26C08K5/103C08K5/521C08K3/28C08K5/5415C08K5/5419
CPCC08L5/08C08L2205/02C08L2205/035C08L75/04C08L23/12C08L5/04C08L71/00C08K13/02C08K2003/326C08K3/34C08K2003/265C08K5/103C08K5/521C08K3/28C08K5/5415C08K5/5419
Inventor 王泽陆
Owner 王泽陆
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