Degradable medical film and preparation method thereof

A technology of thin film and parts by weight, applied in the field of medical composite materials, can solve problems such as being difficult to handle, not having degradability, etc., achieving the effects of being human-friendly and environmentally friendly, suitable for wide-scale popularization and application, and simple and easy to prepare.

Inactive Publication Date: 2015-04-01
SUZHOU BEC BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing medical films are not biodegradable and difficult to dispose of after use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Degradable medical film, including the following components in parts by weight: 18 parts of PE, 8 parts of PP, 4 parts of cellulose acetate butyrate, 6 parts of coconut oleic acid monoethanolamide, 1 part of sodium hexametaphosphate, nano 12 parts of magnesium oxide, 2 parts of maleic anhydride grafted EPDM rubber, 2 parts of magnesium borate whiskers, 2 parts of polyoxyethylene fatty alcohol ether, 3 parts of chitosan.

[0019] The preparation method of the degradable medical film comprises the following steps: adding PE, PP and maleic anhydride grafted EPDM rubber into a high-speed mixer and mixing them uniformly according to the weight ratio, and then adding acetic acid butyric acid Cellulose, coconut oleic acid monoethanolamide, polyoxyethylene fatty alcohol ether and chitosan, stir and heat up to 90 ° C, then add sodium hexametaphosphate, nano-magnesium oxide and magnesium borate whiskers, stir for 60 minutes, and then discharge to The extruder is extruded to granu...

Embodiment 2

[0021] Degradable medical film, including the following components in parts by weight: 24 parts of PE, 16 parts of PP, 9 parts of cellulose acetate butyrate, 14 parts of coconut oleic acid monoethanolamide, 4 parts of sodium hexametaphosphate, nano Magnesium oxide 17 parts, maleic anhydride grafted EPDM rubber 5 parts, magnesium borate whiskers 7 parts, polyoxyethylene fatty alcohol ether 8 parts, chitosan 7 parts.

[0022] The preparation method of the degradable medical film comprises the following steps: adding PE, PP and maleic anhydride grafted EPDM rubber into a high-speed mixer and mixing them uniformly according to the weight ratio, and then adding acetic acid butyric acid Cellulose, coconut oleic acid monoethanolamide, polyoxyethylene fatty alcohol ether and chitosan, stir and heat up to 100 ° C, then add sodium hexametaphosphate, nano-magnesium oxide and magnesium borate whiskers, stir for 40 minutes, and then discharge to The extruder is extruded to granulate, and t...

Embodiment 3

[0024] Degradable medical film, including the following components in parts by weight: 19 parts of PE, 9 parts of PP, 5 parts of cellulose acetate butyrate, 7 parts of coconut oleic acid monoethanolamide, 2 parts of sodium hexametaphosphate, nano 14 parts of magnesium oxide, 2 parts of maleic anhydride grafted EPDM rubber, 3 parts of magnesium borate whiskers, 3 parts of polyoxyethylene fatty alcohol ether, 4 parts of chitosan.

[0025] The preparation method of the degradable medical film comprises the following steps: adding PE, PP and maleic anhydride grafted EPDM rubber into a high-speed mixer and mixing them uniformly according to the weight ratio, and then adding acetic acid butyric acid Cellulose, coconut oleic acid monoethanolamide, polyoxyethylene fatty alcohol ether and chitosan, stir and heat up to 95 ° C, then add sodium hexametaphosphate, nano-magnesium oxide and magnesium borate whiskers, stir for 50 minutes, and then discharge to The extruder is extruded to gran...

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PUM

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Abstract

The invention relates to a degradable medical film and a preparation method thereof, and belongs to the field of medical composite materials. The degradable medical film comprises the following components in parts by weight: 18-24 parts of PE, 8-16 parts of PP, 4-9 parts of cellulose acetate butyrate, 6-14 parts of cocoanut oil monoethanolamide, 1-4 parts of sodium hexametaphosphate, 12-17 parts of nanometer magnesia, 2-5 parts of maleic anhydride-grafted ethylene-propylene-diene monomer rubber, 2-7 parts of magnesium borate whiskers, 2-8 parts of polyoxyethylene aliphatic alcohol ether and 3-7 parts of chitosan. The medical film disclosed by the invention is good in heat resistance, capable of being naturally degraded, and capable of achieving a degradation rate of more than 80% in 30 days; the medical film disclosed by the invention is friendly to human body and environment, and capable of being used for a long time; the preparation method disclosed by the invention is simple and practicable, and suitable for large-range popularization and application.

Description

technical field [0001] The invention belongs to the technical field of medical composite materials, and in particular relates to a degradable medical film and a preparation method thereof. Background technique [0002] Thin film material refers to a thin metal or organic layer with a thickness ranging from a single atom to a few millimeters. There is no unified regulation for the classification of thin films. Usually people are accustomed to divide the film into the following types: according to the raw materials used for film forming: polyethylene film, polypropylene film, polyvinyl chloride film and polyester film, etc.; according to the film use: one is agricultural film: according to The specific use of agricultural film can be divided into mulch film and greenhouse film. One is packaging film: according to its specific use, packaging film can be divided into food packaging film and packaging film for various industrial products, etc., and it is also used in special en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L1/14C08L51/04C08L71/02C08L5/08C08K13/04C08K3/32C08K3/22C08K7/08
CPCC08L23/06C08J5/18C08J2323/06C08K2201/011C08L2201/06C08L2201/08C08L2203/02C08L2203/16C08L2205/035
Inventor 徐勤霞李苏杨
Owner SUZHOU BEC BIOLOGICAL TECH
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