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Hydrophilic lubricant auxiliary agent masterbatch and preparation method thereof, and hydrophilic self-lubricating polymer material including the same

A technology of polymer materials and hydrophilic polymers, applied in the field of medical polymer materials, can solve the problems of low coating adhesion, easy peeling off, economy, and high time cost

Active Publication Date: 2019-04-19
谭斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the coating formed by the physical modification method has low adhesion and is easy to fall off; while the coating formed by the chemical modification method will inevitably contain toxic substances such as organic solvents, photoinitiators, and reaction additives.
Moreover, both of the above two methods make the production and use of medical devices more complicated, and the cost of economy and time is higher, which needs to be improved

Method used

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  • Hydrophilic lubricant auxiliary agent masterbatch and preparation method thereof, and hydrophilic self-lubricating polymer material including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] This embodiment provides a hydrophilic self-lubricating aid masterbatch and a hydrophilic self-lubricating polymer material, the preparation method of which is as follows:

[0084] Preparation of hydrophilic self-lubricating additive masterbatch:

[0085] (1) 3 parts by weight of polyethylene glycol and 17 parts by weight of polypropylene are added in the high mixer, and mixed for 10 minutes at a rotating speed of 300r / min to form a premix;

[0086] (2) The premix that step (1) obtains is added from the rear section feeding device of twin-screw extruder, and 80 parts by weight of amphiphilic oligomer with formula II structure is obtained from the front section of twin-screw extruder Add it to the feeding device, control the barrel temperature of the twin-screw extruder from the feeding section to the die direction from 130°C to 200°C, and the screw speed is 200r / min. After blending and extrusion, hydrophilic lubrication aids are obtained. agent masterbatch.

[0087] P...

Embodiment 2

[0091] This embodiment provides a hydrophilic self-lubricating aid masterbatch and a hydrophilic self-lubricating polymer material, the preparation method of which is as follows:

[0092] Preparation of hydrophilic self-lubricating additive masterbatch:

[0093] (1) 5 parts by weight of polyethylene glycol and 15 parts by weight of nylon 12 are added in the high mixer, and mixed for 10 minutes at a speed of 400r / min to form a premix;

[0094] (2) The premix that step (1) obtains is added from the rear section feeding device of twin-screw extruder, and 80 parts by weight of amphiphilic oligomer with formula III structure is obtained from the front section of twin-screw extruder Add it to the feeding device, control the temperature of the barrel of the twin-screw extruder from the feeding section to the die direction to increase from 150°C to 300°C, and the screw speed is 200r / min. After blending and extrusion, hydrophilic lubrication aids agent masterbatch.

[0095] Preparati...

Embodiment 3

[0099] This embodiment provides a hydrophilic self-lubricating aid masterbatch and a hydrophilic self-lubricating polymer material, the preparation method of which is as follows:

[0100] Preparation of hydrophilic self-lubricating additive masterbatch:

[0101] (1) Add 2 parts by weight of polyoxyethylene and 18 parts by weight of SEBS into the high mixer, and mix for 10 minutes at a rotating speed of 300r / min to form a premix;

[0102] (2) The premix that step (1) obtains is added from the rear section feeding device of twin-screw extruder, and 80 parts by weight of amphiphilic oligomer with formula IV structure is obtained from the front section of twin-screw extruder Add it to the feeding device, control the barrel temperature of the twin-screw extruder from the feeding section to the die direction from 130°C to 200°C, and the screw speed is 200r / min. After blending and extrusion, hydrophilic lubrication aids are obtained. agent masterbatch.

[0103] Preparation of hydro...

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Abstract

The invention provides hydrophilic lubricant auxiliary agent masterbatch and a preparation method thereof, and a hydrophilic self-lubricating polymer material including the same. The masterbatch includes, by weight percentage, 20-93% of an amphiphilic oligomer, 2-30% of a hydrophilic polymer material and 5-50% of a hydrophobic polymer material; the amphiphilic oligomer includes a hydrophilic chainsection and an oleophilic chain section, the number average molecular weight of the hydrophilic chain section is 300-3,000, and the number average molecular weight of the oleophilic chain section is300-3,000; and the hydrophilic self-lubricating polymer material includes 60-99 parts by weight of a polymer matrix material and 1-40 parts by weight of hydrophilic lubricant auxiliary agent masterbatch. The provided masterbatch can effectively enhance the hydrophilic lubrication performance of the polymer material, and is lasting in lubrication effect; and the polymer material can be directly molded to prepare medical instruments without coating self-lubricating coatings or lubricants.

Description

technical field [0001] The invention belongs to the technical field of medical polymer materials, and in particular relates to a hydrophilic lubricating aid masterbatch, a preparation method thereof and a hydrophilic self-lubricating polymer material containing the same. Background technique [0002] Polymer medical devices (such as catheters, indwelling needles, etc.) play an important role in the diagnosis and treatment of diseases. Some medical devices need to enter the human body during use, and come into contact with body fluids or blood in a humid environment. When these medical devices enter the human body, they will rub against human tissues. Such medical devices are often required to have excellent lubricity in order to reduce friction, reduce tissue damage, and improve operator operability. [0003] Lubrication modification of polymer medical devices mainly includes physical modification and chemical modification. The physical modification method refers to the ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L71/02C08L77/02C08L53/02C08L23/06C08L39/06C08L67/04C08L83/04C08L25/06C08J3/22
CPCC08J3/226C08J2323/06C08J2323/12C08J2325/06C08J2353/02C08J2367/04C08J2377/02C08J2383/04C08J2423/06C08J2423/12C08J2439/06C08J2453/02C08J2467/04C08J2471/02C08J2477/02
Inventor 谢敏讷谭斌刘统金
Owner 谭斌
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