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Antibacterial shading medical polyvinyl chloride plastic and preparation method thereof

A polyvinyl chloride and plastic technology, applied in the field of medical plastics, can solve problems such as poor transparency, low safety factor, and precipitation of light-shielding additives, and achieve the effects of enhancing safety, ensuring safety in use, and having no effect on transparency

Inactive Publication Date: 2016-01-13
上海新上化高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the light-shielding PVC materials on the market have problems such as plasticizer precipitation, light-shielding auxiliary agent precipitation, poor transparency, and low safety factor. How to improve the safety of light-shielding infusion sets is a subject of great concern to those skilled in the art.

Method used

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  • Antibacterial shading medical polyvinyl chloride plastic and preparation method thereof
  • Antibacterial shading medical polyvinyl chloride plastic and preparation method thereof
  • Antibacterial shading medical polyvinyl chloride plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Proportioning: (parts by weight)

[0027]

[0028]

[0029] The composite color powder is a mixture of red and yellow pigments, and the weight ratio of red and yellow is 1-5;

[0030] Preparation steps:

[0031] (1) Add polyvinyl chloride, plasticizer, auxiliary plasticizer, ultraviolet light stabilizer, migration inhibitor, toner, titanium dioxide, and antibacterial materials into the high-speed mixer in sequence, heat and stir at a low speed of 30rpm to 80°C, and then add antibacterial Material and heat stabilizer, run at 480rpm, add lubricant after the temperature reaches 120°C. Stir continuously to 140°C and discharge to the cooling mixer with a rotation speed of 30rpm. When the temperature of the material is cooled to 45-60°C, the material is discharged.

[0032] (2) The material obtained in step (1) is granulated using a twin-screw extruder. The screw speed of the main engine is 80rpm, the temperature of each section of the extruder: the first section is...

Embodiment 2

[0034] Proportioning: (parts by weight)

[0035]

[0036]

[0037] The composite color powder is a mixture of blue and green pigments, and the weight ratio of red and yellow is 1-5. The preparation method is the same as in Example 1.

Embodiment 3

[0039] Weigh 100 parts of polyvinyl chloride

[0040] Plasticizer TOTM60 parts

[0041] Auxiliary plasticizer ESO10 parts

[0042] Compound calcium zinc heat stabilizer 2.5 parts

[0043] 0.3 parts of ultraviolet absorber 2,4-dihydroxybenzophenone

[0044] 0.3 parts of ultraviolet absorber 2-(2'-hydroxyl-5'-methylphenyl)benzotriazole

[0045] β-cyclodextrin 15 parts

[0046] Compound color powder 0.6 parts

[0047] Titanium dioxide 5 parts

[0048] Nano silver antibacterial powder 0.5 parts

[0049] Lubricant silicone oil 0.3 parts.

[0050] The composite color powder is a mixture of blue and green pigments, and the weight ratio of red and yellow is 1-5.

[0051] The preparation method is the same as in Example 1.

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Abstract

The invention discloses antibacterial shading medical polyvinyl chloride plastic and a preparation method thereof. The antibacterial shading medical polyvinyl chloride plastic comprises, by weight, 100 parts of polyvinyl chloride, 5-90 parts of a plasticizer, 5-15 parts of an auxiliary plasticizer, 1-6 parts of a heat stabilizer, 0.1-3 parts of a ultraviolet light absorbent, 1-20 parts of a migration inhibitor, 0.1-10 parts of toner, 0.1-10 parts of titanium dioxide, 0.1-5 parts of an antibacterial material and 0.1-1 part of a lubricant. The migration inhibitor is beta-cyclodextrin. The antibacterial shading medical polyvinyl chloride plastic can effectively inhibit migration or decoloring of micromolecule substances such as a plasticizer and toner, can improve transfusion apparatus safety after disinfection, can guarantee patient usage safety, can thoroughly prevent light-avoiding agent migration and illumination-caused influence on a medical agent, does not influence drug use efficiency, has excellent dyeing resistance and anti-tarnishing performances in processing or use and does not influence PVC material transparency.

Description

technical field [0001] The invention relates to a medical plastic, in particular to an antibacterial light-proof medical polyvinyl chloride plastic. Background technique [0002] Light can promote photochemical degradation of certain drugs, reduce the efficacy of drugs, and have adverse effects on patients. Medical polyvinyl chloride plastics are often used to prepare light-shielding medical equipment. Usually, light-shielding agents or dyes are added to polyvinyl chloride plastics to meet the light-shielding requirements of medical devices, and the added light-shielding agents or dyes will dissolve to a certain extent. In the liquid medicine, most of these medical plastics have a light transmittance of more than 30%, which cannot achieve the purpose of light protection, seriously affects the quality of the infused medicine, and may bring very serious consequences and harm to the patient. [0003] At present, most of the disposable light-proof infusion sets in clinical use ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L5/16C08K13/02C08K3/22B29B9/06B29C47/92B29C48/92
Inventor 王芹唐艳芳吴唯
Owner 上海新上化高分子材料有限公司
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