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

Production method for PTFE (polytetrafluoroethylene) superfine fiber film

A technology of ultrafine fiber and glass fiber, which is applied in the field of preparation of PTFE ultrafine fiber membrane, can solve the problems of application limitation, large cold flow performance, poor processing performance, etc., and achieve performance improvement, good compression creep and wear resistance sex increasing effect

Inactive Publication Date: 2015-06-24
常州中澳兴诚高分子材料有限公司
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to some inherent defects of PTFE, especially its large cold flow performance and poor processing performance, its application is limited.

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] A kind of preparation method of PTFE microfiber membrane, comprises the steps:

[0028] (1), PTFE resin, filler, auxiliary agent, and graphene are mixed;

[0029] PTFE resin: 50%-80%;

[0030] Filler: 0%-40%;

[0031] Auxiliary: 5%-10%;

[0032] Graphene: 0.5-3%.

[0033] (2), then this mixture is melted in the mixer of high temperature heating;

[0034] (3), melted into a pulpy substance and then extruded by a screw machine to extrude thin strips;

[0035] (4) Rolling into a sheet, cooling to solidify the mixture, and finally sending it to a calender roll to be calendered into a film.

[0036] As a preferred solution, the above-mentioned auxiliary agent is one or more of curing agent, brightening agent, benzoin, leveling agent and reinforcing agent.

[0037] As a preferred solution, the above-mentioned filler is one or more of barium sulfate and calcium sulfate.

[0038] As a preferred solution, the particle size of the graphene is 1-50 μm.

[0039] As a prefer...

Embodiment 1

[0045] A kind of preparation method of PTFE microfiber membrane, comprises the steps:

[0046] (1), PTFE resin, filler, auxiliary agent, and graphene are mixed;

[0047] PTFE resin: 50%;

[0048] Filler: 40%;

[0049] Additives: 9.5%;

[0050] Graphene: 0.5%.

[0051] (2), then this mixture is melted in the mixer of high temperature heating;

[0052] (3), melted into a pulpy substance and then extruded by a screw machine to extrude thin strips;

[0053] (4) Rolling into a sheet, cooling to solidify the mixture, and finally sending it to a calender roll to be calendered into a film.

Embodiment 2

[0055] A kind of preparation method of PTFE microfiber membrane, comprises the steps:

[0056] (1), PTFE resin, filler, auxiliary agent, and graphene are mixed;

[0057] PTFE resin: 80%;

[0058] Filler: 12%;

[0059] Auxiliary: 5%;

[0060] Graphene: 3%.

[0061] (2), then this mixture is melted in the mixer of high temperature heating;

[0062] (3), melted into a pulpy substance and then extruded by a screw machine to extrude thin strips;

[0063] (4) Rolling into a sheet, cooling to solidify the mixture, and finally sending it to a calender roll to be calendered into a film.

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
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a production method for a PTFE (polytetrafluoroethylene) superfine fiber film. The production method includes the following steps: (1), mixing PTFE resin, padding, an assistant and graphene; (2), fusing the mixture in a blender mixer which is heated at the high temperature; (3), extruding a pulp, obtained after fusing, by a screw machine to obtain a strip; (4), rolling the strip into a sheet, curing the mixture through cooling, and feeding the mixture into a calendering roll to be calendered into the film. The production method for the PTFE superfine fiber film has the advantages that mechanical performance and wear resistance performance of the PTFE superfine fiber film are enhanced greatly.

Description

technical field [0001] The invention relates to a preparation method of a PTFE superfine fiber membrane, which belongs to the technical field of new chemical materials. Background technique [0002] Polytetrafluoroethylene (PTFE) resin was invented by Dr. Planquet in 1938 and officially put into industrial production by Du Pont Company in 1950. PTFE has excellent and special physical and chemical properties, and is widely used in the chemical industry and other related industries. However, due to some inherent defects of PTFE, especially its large cold flow performance and poor processing performance, its application is limited. Therefore, in-depth study of the properties of PTFE, improvement of its processing performance, and development of new PTFE composite materials have become the main research and development directions of PTFE. Contents of the invention [0003] In order to overcome the above disadvantages, the invention provides a preparation method of a PTFE ult...

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 Applications(China)
IPC IPC(8): C08J5/18C08L27/18C08K13/04C08K3/04C08K7/14
Inventor 何越超
Owner 常州中澳兴诚高分子材料有限公司