Novel medical composite material and preparation method thereof

A new material and medical technology, applied in the field of degradable medical composite new materials and its preparation, can solve the problems of low degradation rate, low compression resistance, non-waterproof, etc., achieve high elongation at break, simple preparation method, The effect of fast natural degradation rate

Inactive Publication Date: 2017-05-24
天津旁耘科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the medical material can be degraded, the degradation rate is low, and the prepared material has low tensile and compressive properties, and is not waterproof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A new medical composite material, made of the following raw materials in parts by weight: 30 parts of polypropylene, 30 parts of polylactic acid, 20 parts of starch, 90 parts of bamboo fiber, 2 parts of crabgrass, 2 parts of soap paste, isobutyric acid 2 parts of isobutyl ester, 2 parts of triethylene glycol dimethacrylate, 3 parts of dipotassium hydrogen phosphate, 2 parts of coconut oil fatty acid.

[0020] The preparation method of the above-mentioned degradable medical composite new material is carried out according to the following steps:

[0021] (1) According to the parts by weight, get 30 parts of polypropylene, 30 parts of polylactic acid, 20 parts of starch, 90 parts of bamboo pulp fiber, superfinely pulverize, mix, put into 1000 parts of ethanol, stir quickly to make dispersion liquid;

[0022] (2) Get the stem and leaf of crabgrass, dry, grind into powder, cross 200 mesh sieves, obtain crabgrass powder, get 2 parts of crabgrass powder, join in the dispersion...

Embodiment 2

[0026] A new medical composite material, made of the following raw materials in parts by weight: 20 parts of polypropylene, 20 parts of polylactic acid, 10 parts of starch, 65 parts of ramie fiber, 1 part of crabgrass, 1 part of terpene polymer, 2- 1 part of propyl heptanol, 1 part of sodium citrate, 1 part of 2-(2-butoxyethoxy) ethanol, 1 part of docos-13-enoic acid.

[0027] The preparation method of the above-mentioned new medical composite material is carried out according to the following steps:

[0028] (1) According to the parts by weight, get 20 parts of polypropylene, 20 parts of polylactic acid, 10 parts of starch, 65 parts of ramie fiber, ultrafinely pulverize, mix, put into 900 parts of ethanol, stir quickly to make dispersion liquid;

[0029] (2) Get the stem and leaf of crabgrass, dry, grind into powder, pass through a 150 mesh sieve to obtain crabgrass powder, take 1 part of crabgrass powder, and add it to the dispersion prepared in step (1);

[0030] (3) After...

Embodiment 3

[0033] A new medical composite material, made of the following raw materials in parts by weight: 25 parts of polypropylene, 25 parts of polylactic acid, 15 parts of starch, 75 parts of sisal fiber, 1.5 parts of crabgrass, 1.5 parts of polyethylene glycol 6000, 1.5 parts of benzoic acid, 1.5 parts of mannitol, 2 parts of tertiary lauryl dimethyl amine, 1.5 parts of stearyl isocyanate.

[0034] The preparation method of the above-mentioned new medical composite material is carried out according to the following steps:

[0035] (1) 25 parts of polypropylene, 25 parts of polylactic acid, 15 parts of starch, 75 parts of sisal fiber, ultrafinely pulverized, mixed, put into 900 parts of ethanol, stirred quickly to make a dispersion;

[0036] (2) Get the stem and leaf of crabgrass, dry, grind into powder, cross 180 mesh sieves, obtain crabgrass powder, get 1.5 parts of crabgrass powder, join in the dispersion liquid prepared in step (1);

[0037] (3) After volatilizing the dispersion...

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Abstract

The invention discloses a novel medical composite material and a preparation method thereof. The novel medical composite material is prepared from the following raw materials in parts by weight: 20 to 30 parts of polypropylene, 20 to 30 parts of polylactic acid, 10 to 20 parts of starch, 65 to 90 parts of plant fibers, 1 to 2 parts of digitaria sanguinalis, 1 to 2 parts of lubricant, 1 to 2 parts of plasticizer, 1 to 2 parts of antifreezing agent, 1 to 3 parts of cross-linking agent and 1 to 2 parts of waterproof agent. The degradable novel medical composite material prepared by the method is high in tensile strength, bending strength and elongation at break, high in natural degradation speed, water-proof and suitable for producing medical bag products. The preparation method of the novel composite material is simple, and suitable for industrialized mass production.

Description

technical field [0001] The invention relates to a new medical material, in particular to a new degradable medical composite material and a preparation method thereof. Background technique [0002] Biomedical materials are materials used to diagnose, treat, repair or replace damaged tissues and organs of living organisms or enhance their functions. It is the basis for the study of artificial organs and medical devices, and has become an important branch of contemporary materials science. Especially with the vigorous development and major breakthroughs of biotechnology, biomedical materials have become a hot spot for scientists from all over the world to research and develop. Biomedical composite material, also known as biocomposite material, is a biomedical material composed of two or more different materials, and compared with the performance of all monomers, the performance of the composite material has a greater degree of Raised material. The purpose of preparing such ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/12C08L67/04C08L3/02C08K13/02C08K5/101C08K5/103C08K3/32C08K5/09
CPCC08L97/02C08L2201/06C08L2203/02C08L2205/035C08L2205/16C08L23/12C08L67/04C08L3/02C08K13/02C08K5/101C08K5/103C08K2003/324C08K5/09
Inventor 张广菊
Owner 天津旁耘科技有限公司
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