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Preparation method of environment-friendly bacteriostatic medical film

A kind of thin film, environmental protection technology, applied in the field of preparation of environmental protection and antibacterial medical film, can solve the problems of poor drug preservation effect, no antibacterial property, etc., and achieve the effect of low cost, reasonable formula and good elasticity

Inactive Publication Date: 2015-09-02
SUZHOU BEC BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing medical films have poor preservation effect on medicines and do not have antibacterial properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A method for preparing an environmentally friendly and antibacterial medical film, the preparation method comprising the following steps: (1) Weighing the components by weight: 40 parts of PVC, 3 parts of octyltin maleate, 2 parts of methyltin mercaptide, coconut 4 parts of oleic acid monoethanolamide, 3 parts of dicumyl peroxide, 2 parts of plasticizer, 2 parts of starch, 2 parts of titanium dioxide, 0.5 parts of isopropanol, 4 parts of chitosan, 3 parts of antibacterial agent and epoxy 1 part soybean oil;

[0015] (2) Put each component into the reaction kettle, heat to 75-80°C in a nitrogen atmosphere, stir continuously at a speed of 110-130r / min, and react for 2-3h to obtain a pre-finished product;

[0016] (3) Send the pre-finished product prepared in step (2) into a twin-screw extruder, the extrusion temperature is 210-215°C, the screw speed is 36-54Hz, the twin-screw extruded strip is water-cooled, air-dried, and pelletized to obtain masterbatch;

[0017] (4) E...

Embodiment 2

[0023] A method for preparing an environmentally friendly and antibacterial medical film, the preparation method comprising the following steps: (1) Weighing the components by weight: 45 parts of PVC, 4 parts of octyltin maleate, 3 parts of methyltin mercaptide, coconut 6 parts of oleic acid monoethanolamide, 5 parts of dicumyl peroxide, 4 parts of plasticizer, 4 parts of starch, 5 parts of titanium dioxide, 0.6 parts of isopropanol, 8 parts of chitosan, 7 parts of antibacterial agent and epoxy 2 parts soybean oil;

[0024] (2) Put each component into the reaction kettle, heat to 75-80°C in a nitrogen atmosphere, stir continuously at a speed of 110-130r / min, and react for 2-3h to obtain a pre-finished product;

[0025] (3) Send the pre-finished product prepared in step (2) into a twin-screw extruder, the extrusion temperature is 210-215°C, the screw speed is 36-54Hz, the twin-screw extruded strip is water-cooled, air-dried, and pelletized to obtain masterbatch;

[0026] (4) ...

Embodiment 3

[0032] A method for preparing an environmentally friendly and antibacterial medical film, the preparation method comprising the following steps: (1) Weighing the components by weight: 50 parts of PVC, 6 parts of octyltin maleate, 5 parts of methyltin mercaptide, coconut 7 parts of oleic acid monoethanolamide, 7 parts of dicumyl peroxide, 6 parts of plasticizer, 6 parts of starch, 8 parts of titanium dioxide, 0.8 parts of isopropanol, 14 parts of chitosan, 15 parts of antibacterial agent and epoxy 4 parts soybean oil;

[0033] (2) Put each component into the reaction kettle, heat to 75-80°C in a nitrogen atmosphere, stir continuously at a speed of 110-130r / min, and react for 2-3h to obtain a pre-finished product;

[0034] (3) Send the pre-finished product prepared in step (2) into a twin-screw extruder, the extrusion temperature is 210-215°C, the screw speed is 36-54Hz, the twin-screw extruded strip is water-cooled, air-dried, and pelletized to obtain masterbatch;

[0035] (4...

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Abstract

The invention discloses a preparation method of an environment-friendly bacteriostatic medical film. The preparation method comprises the following steps: (1) weighing all components according to parts by weight; putting the components in a reaction still, heating in a nitrogen atmosphere, continuously stirring, and reacting for 2-3 h to obtain a semi-finished product; (3) conveying the semi-finished product prepared in the step (2) into a twin-screw extruder, and performing water-cooling, air-drying and pelleting on splines extruded by the twin-screw extruder to obtain master batches; (4) adopting a plastic film blowing machine to perform extrusion and film blowing on the master batches obtained in the step (3) to obtain the environment-friendly bacteriostatic medical film. The environment-friendly bacteriostatic medical film prepared through the preparation method disclosed by the invention is safe and environment-friendly and has excellent solvent resistance and heat resistance as well as excellent mechanical property, and the highest heat resistance temperature is 160 DEG C; the preparation method is simple and feasible and suitable for large-scale popularization and application.

Description

technical field [0001] The invention belongs to the field of new medical materials and relates to a preparation method of an environment-friendly antibacterial medical film. technical background [0002] Films are typically made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins and are used for packaging or as laminations. The primary performance of the medical-grade film requires good human tissue compatibility and blood compatibility, good willfulness, solvent resistance, hydrolysis resistance, non-toxicity, good wear resistance and other excellent properties. However, as a medical material, bacterial adhesion and infection have become major problems, and an improved polyurethane material with strong antibacterial ability is urgently needed. Chitosan is a cationic rigid macromolecule containing -NH2 in its molecule. It is prepared by deacetylation of chitin. The film formed by it has good mechanical properties. Chitosan has a broad-spectru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L3/02C08L5/08C08K13/02C08K5/57C08K5/20C08K3/22C08K3/08C08K3/32B29C47/92B29C48/92
CPCC08L27/06B29C48/92B29C2948/9258B29C2948/92704C08J5/18C08J2327/06C08J2403/02C08J2405/08C08J2491/00C08K2201/011C08L2201/08C08L2203/16C08L2205/035C08L3/02C08L5/08C08L91/00C08K13/02C08K5/57C08K5/58C08K5/20C08K2003/2241C08K2003/0806C08K2003/2296C08K2003/322
Inventor 李苏杨李文遐徐勤霞
Owner SUZHOU BEC BIOLOGICAL TECH
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