Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of masterbatch of hydrophilic lubricating aid, its preparation method and hydrophilic self-lubricating polymer material containing it

A polymer material and hydrophilic polymer technology, applied in the field of medical polymer materials, can solve the problems of medical device production, complex use, low coating adhesion, easy to fall off, etc., and achieve lasting and effective hydrophilic self-lubricating effect. Effect

Active Publication Date: 2021-07-20
谭斌
View PDF11 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of masterbatch of hydrophilic lubricating aid, its preparation method and hydrophilic self-lubricating polymer material containing it

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
friction coefficientaaaaaaaaaa
Login to View More

Abstract

The invention provides a hydrophilic lubricating aid masterbatch, a preparation method thereof and a hydrophilic self-lubricating polymer material containing the same. The hydrophilic lubricating aid masterbatch includes the following components in weight percentage: 20-93% of amphiphilic oligomer, 2-30% of hydrophilic polymer material and 5-50% of hydrophobic polymer material; The amphiphilic oligomer includes a hydrophilic segment and an lipophilic segment, the number average molecular weight of the hydrophilic segment is 300-3000, and the number average molecular weight of the lipophilic segment is 300-3000. The hydrophilic self-lubricating polymer material includes 60-99 parts by weight of a polymer matrix material and 1-40 parts by weight of the hydrophilic lubricating aid masterbatch. The hydrophilic lubricating aid masterbatch provided by the present invention can effectively improve the hydrophilic lubricating performance of polymer materials, and has a long-lasting lubricating effect, and the hydrophilic self-lubricating polymer materials containing it can be directly molded to prepare medical devices without recoating Self-lubricating coating or lubricant.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(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