Nanometer polytetrafluoroethylene composite material and preparation method thereof
A technology of polytetrafluoroethylene and polytetrafluoroethylene micropowder, which is applied in the field of nano-polytetrafluoroethylene composite materials and its preparation, can solve problems such as poor mechanical properties, poor wear resistance, and poor high temperature resistance, and improve production and preparation efficiency , improve dimensional stability, simple preparation method
Inactive Publication Date: 2021-01-26
宋伟
View PDF4 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a nano-polytetrafluoroethylene composite material and its preparation method to solve the problem of poor wear resistance, poor mechanical properties, poor high temperature resistance, Problems with disadvantages such as large creep, poor dimensional stability and easy wear
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0030] A kind of nano polytetrafluoroethylene composite material, comprises following composition:
[0031] PTFE micropowder, polyphenylene ester, copper powder, alumina, graphene, absolute ethanol;
[0032] Wherein, the mass percent of each composition in the nano polytetrafluoroethylene composite material is:
[0033] PTFE powder 45%-55%, polyphenylene 10%-15%, copper powder 0%-5%, aluminum oxide 10%-15%, graphene 0%-10%, absolute ethanol 15%- 40%.
[0034] Among them, the particle size of polytetrafluoroethylene powder is 35-55um, the particle size of polyphenylene is 5-20um, the particle size of copper powder is 20-50nm, the particle size of aluminum oxide is 30-50nm, and the sheet of graphene The thickness is 20-40nm, and the sheet diameter is 30-80um.
[0035] A method for preparing a nano polytetrafluoroethylene composite material, comprising the following steps:
[0036] Step (1) weighing:
[0037] For polytetrafluoroethylene micropowder, polyphenylene ester, copp...
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
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention is applicable to the technical field of polytetrafluoroethylene composite materials, and provides a nanometer polytetrafluoroethylene composite material and a preparation method thereof.The nanometer polytetrafluoroethylene composite material comprises the following components: polytetrafluoroethylene micropowder, polybenzoate, copper powder, alumina, graphene and absolute ethyl alcohol. Specifically, the nanometer polytetrafluoroethylene composite material comprises the following components in percentage by mass: 45%-55% of polytetrafluoroethylene micropowder, 10%-15% of polybenzoate, 0%-5% of copper powder, 10%-15% of aluminum oxide, 0%-10% of graphene and 15%-40% of absolute ethyl alcohol. The invention provides a product prepared according to the preparation method for the nanometer polytetrafluoroethylene composite material. According to the invention, polytetrafluoroethylene is filled with polyphenyl ester, copper powder, aluminum oxide and graphene in a certain mass percent so as to realize modification of polytetrafluoroethylene, so the dimensional stability, high temperature resistance and wear resistance of the composite material are greatly improved, the service life of the composite material is greatly prolonged, and the application prospect of the composite material is wide; and meanwhile, the preparation method is simple, batch production can be realized, cost is reduced, and poduction and preparation efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of polytetrafluoroethylene composite materials, in particular to a nanometer polytetrafluoroethylene composite material and a preparation method thereof. Background technique [0002] Polytetrafluoroethylene, commonly known as "Plastic King", is a polymer compound made of tetrafluoroethylene, which has excellent chemical stability, corrosion resistance, sealing, high lubrication and non-stickiness, electrical insulation and good Anti-aging endurance, used as engineering plastics, can be made into PTFE pipes, rods, strips, plates, films, etc., generally used in corrosion-resistant pipes, containers, pumps, valves and radar, high-speed Frequency communication equipment, radio equipment, etc. [0003] When the existing polytetrafluoroethylene composite materials are used, especially in pumps, bearings, pistons and other components, they show poor wear resistance, poor mechanical properties, poor high temperatu...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/18C08L67/00C08K3/08C08K3/22C08K3/04
CPCC08L27/18C08K2201/005C08K2003/2227C08K2003/085C08L2201/08C08L67/00C08K3/08C08K3/22C08K3/042
Inventor 宋伟
Owner 宋伟