Anti-adhesion medical antibacterial PVC material

A PVC material and anti-adhesion technology, applied in the field of medical film material production, can solve problems such as adhesion, achieve the effects of preventing adhesion, preventing secondary pollution, and optimizing the damp heat sterilization process

Inactive Publication Date: 2020-05-05
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

However, there is still adhesion under long-term high-temperature sterilization conditions

Method used

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  • Anti-adhesion medical antibacterial PVC material
  • Anti-adhesion medical antibacterial PVC material
  • Anti-adhesion medical antibacterial PVC material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050]

[0051]

[0052] The preparation method of macromolecular type antibacterial agent, its specific steps are: take 1-vinyl-3-ethyl imidazolium bromide and cyclopentadiene as raw materials, azobisisobutyronitrile (AIBN) as initiator, in the reaction The temperature is 45-60°C, the raw materials and the initiator are mixed evenly, and then reacted under nitrogen protection, the reaction time is controlled to be 4-6 hours, so that the conversion rate of the monomer is more than 96%, and the polymer antibacterial agent is prepared. The molar ratio of 1-vinyl-3-ethylimidazolium bromide to cyclopentadiene is 1:1, and the initiator is controlled at 0.3wt% of the total mass of the two raw materials.

[0053]Due to its non-polar structure, PVC itself does not contain polar groups in its molecular structure. It is difficult to disperse functional components such as antibacterial agents in the resin matrix, which makes it difficult to add functional additives such as powder in...

Embodiment 2

[0056]

[0057]

[0058] The preparation method of macromolecule type antibacterial agent is with embodiment 1.

[0059] A kind of preparation method of anti-adhesion medical antibacterial PVC material is the same as embodiment 1.

Embodiment 3

[0065] The present application also provides a radiation-resistant sterilization medical polyvinyl chloride material, the raw material components are:

[0066]

[0067]

[0068] The preparation of macromolecular type antibacterial agent is the same as embodiment 1.

[0069] The preparation method of the radiation-resistant sterilization medical polyvinyl chloride material comprises the following steps:

[0070] 1. After heating and stirring at 20-40rpm to 80-90°C, add light stabilizer, main antioxidant, auxiliary antioxidant, heat stabilizer, run at 400-600rpm, and add lubricant when the temperature reaches 120-125°C agent and plasticizer precipitation inhibitor;

[0071] Continue to stir until 140-150°C and discharge to the cooling mixer at a speed of 30-45rpm. When the temperature of the material is cooled to 45-60°C, the material is discharged;

[0072] 2. Use a twin-screw extruder to granulate the material obtained in step 1. The material is plasticized by the ext...

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Abstract

The invention relates to an anti-adhesion medical antibacterial PVC material which is characterized by comprising the following raw materials in parts by weight: 100 parts of PVC resin powder; 2-7 parts of an anti-adhesion agent; 4-6 parts of an antistatic agent; 20 to 80 parts of a plasticizer; 1-5 parts of a stabilizer; 0.1 to 1.5 parts of an antioxidant; 1-6 parts of an auxiliary stabilizer; 0.2 to 1 part of a lubricant; and 1-3 parts of a polymer antibacterial agent. The material has the main advantages that due to the existence of a small amount of anti-adhesion agent, nano-scale or near-nano-scale bulges are formed on the surface of the PVC material, so that the material is prevented from being adhered, and good antibacterial performance is realized.

Description

technical field [0001] The invention relates to the technical field of production of medical film materials, in particular to an anti-adhesion medical antibacterial PVC material. Background technique [0002] The plasticized PVC material is widely used in the field of disposable medical consumables because of its good mechanical properties, softness, transparency and cheap price. With its good formability, flexibility and good air permeability, PVC material occupies a large market share in blood transfusion bags and waste liquid collection bags. These products need to be sterilized by high temperature and humidity sterilization technology. In the actual use process, due to factors such as the self-adhesiveness of PVC itself and the migration of plasticizers, PVC film materials are prone to mutual adhesion during high temperature and humidity sterilization. knot, which makes the opening and separation of the inside of the bag difficult, which brings great inconvenience to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L83/00C08L39/04C08L33/04C08K13/02C08K3/36
CPCC08L27/06C08L2205/035C08L83/00C08L39/04C08K13/02C08K3/36C08L33/04
Inventor 唐艳芳徐晓辉王芹徐永卫
Owner 上海新上化高分子材料有限公司
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