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Preparation of light-proof medical polyvinyl chloride plastics

A polyvinyl chloride and plastic technology, applied in the field of medical plastics, can solve the problems of poor transparency, precipitation of light-proof additives, and low safety factor, and achieve the effect of avoiding influence, ensuring safety in use, and enhancing safety.

Inactive Publication Date: 2018-05-25
潜江市大虾风范水产品养殖有限公司
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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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Proportion: (parts by weight)

[0025] 100 parts polyvinyl chloride

[0026] Plasticizer DQP 5:0 parts

[0027] Auxiliary plasticizer ESO 6 parts

[0028] Preparation steps:

[0029] (1) Add polyvinyl chloride, plasticizer, auxiliary plasticizer, ultraviolet light stabilizer, migration inhibitor, toner, titanium dioxide, and antibacterial materials into the high-speed mixer in turn, heat and stir at a low speed of 30rpm to 80°C Finally, add antibacterial material and heat stabilizer, run at 480rpm, and add lubricant after the temperature reaches 120°C. Continue stirring to 140 DEG C and discharge to cooling mixer, rotating speed 30rpm. Treat that material temperature is cooled to 45~60 ℃ of discharging.

[0030] (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 120°C, the second section 140°C, the third section 160°C, the f...

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Abstract

The invention discloses preparation of light-proof medical polyvinyl chloride plastics. The antibacterial light-proof medical polyvinyl chloride plastics are prepared from the following components inparts by weight: 100 parts of polyvinyl chloride, 5 to 90 parts of plasticizer, 5 to 15 parts of auxiliary plasticizing agent, 1 to 6 parts of heat stabilizer, 0.1 to 3 parts of ultraviolet absorber,1 to 20 parts of migration inhibitor, 0.1 to 10 parts of toner, 0.1 to 10 parts of titanium dioxide, 0.1 to 5 parts of antibacterial material, 0.1 to 1 part of lubricant, and migration inhibitors aree-cyclodextrin. The preparation of the light-proof medical polyvinyl chloride plastics have the advantages that the migration or decoloration of small molecules such as plasticizers and toners can beeffectively inhibited, the safety of infusion devices after sterilization is enhanced, the safety of use of patients is ensured, and the migration of light-shielding agents and influence of illumination on a liquid medicine are fundamentally avoided, the use efficiency of the medicine is not affected, and has excellent resistance to dyeing and discoloration during processing or use, and transparency after adding a PVC (Polyvinyl chloride) material is not affected.

Description

technical field [0001] The invention relates to a medical plastic, in particular to the preparation of 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, and 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 for clinic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L5/16C08L91/00C08K13/02C08K3/22
CPCC08L27/06C08L2201/10C08L2203/02C08L2205/03C08L5/16C08L91/00C08K13/02C08K2003/2241C08L91/005
Inventor 刘乔
Owner 潜江市大虾风范水产品养殖有限公司
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