Wear-resistant packing and preparation method thereof

A technology of packing and nano-boron fiber, which is applied in the field of wear-resistant packing and its preparation, and sealing materials, which can solve the problems of creep resistance, wear resistance, high temperature resistance, poor acid and alkali resistance and sealing performance, and low equipment dependence , short service life and other problems, to achieve the effects of poor acid and alkali resistance, poor sealing performance, low equipment dependence, and short service life

Inactive Publication Date: 2020-02-21
王传忠
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the prior art, the present invention provides a wear-resistant packing and its preparation method. The preparation method is simple and easy to operate, the preparation cost is low, the dependence on equipment is not high, and it is suitable for large-scale production; the prepared wear-resistant Grinding packing overcomes the defects that traditional packing only has strength in certain directions, and is easy to age, creep resistance, wear resistance, corrosion resistance, high temperature resistance, acid and alkali resistance, poor sealing performance, and short service life. Good abrasion resistance, high flexibility, high temperature resistance and weather resistance, good chemical stability, excellent sealing performance and thermal conductivity

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

Embodiment 1

[0032] A wear-resistant packing prepared from the following raw materials in parts by weight: 10 parts of surface-modified nano-boron fiber / chromium boride composite material, 15 parts of ionic anthracenedione-based fluorine-containing polycondensate, and 25 parts of aminophenyl silicone oil , 30 parts of epichlorohydrin rubber, 1 part of N,N'-m-phenylene bismaleimide, 1 part of compatibilizer PE-g-ST.

[0033] The preparation method of the surface-modified nano-boron fiber / chromium boride composite material comprises the following steps: dispersing 30 g of nano-boron fiber and 30 g of chromium boride in 200 g of N,N-dimethylformamide, and then adding 3 -23.4g of methacryloyloxypropyl tri(methoxyethoxy)silane, stirred and reacted at 60°C for 4 hours, then added trans,trans-1,3-butadiene-1 , 10g of 4-dicarboxylic acid, under nitrogen atmosphere, reflux and stir at 125°C for 15 hours, then centrifuge, wash with ethyl acetate three times, and dry in a vacuum oven at 80°C to const...

Embodiment 2

[0042] A wear-resistant packing prepared from the following raw materials in parts by weight: 11 parts of surface-modified nano-boron fiber / chromium boride composite material, 16 parts of ionic anthracenedione-based fluorine-containing polycondensate, and 26 parts of aminophenyl silicone oil , 32 parts of epichlorohydrin rubber, 2 parts of 2,5-dithio-1,3,4-thiadiazole, 2 parts of compatibilizer PP-g-ST.

[0043] The preparation method of the surface-modified nano-boron fiber / chromium boride composite material comprises the following steps: dispersing 35 g of nano-boron fiber and 30 g of chromium boride in 210 g of N,N-dimethylformamide, and then adding 3 -23.4g of methacryloyloxypropyltri(methoxyethoxy)silane, stirred and reacted at 65°C for 4.5 hours, then added trans,trans-1,3-butadiene-1 , 10g of 4-dicarboxylic acid, under a helium atmosphere, reflux and stir at 127°C for 16 hours, then centrifuge, wash with ethyl acetate for 4 times, and dry in a vacuum oven at 82°C to con...

Embodiment 3

[0052] A wear-resistant packing prepared from the following raw materials in parts by weight: 13 parts of surface-modified nano-boron fiber / chromium boride composite material, 18 parts of ionic anthracenedione-based fluorine-containing polycondensate, and 27 parts of aminophenyl silicone oil , 36 parts of epichlorohydrin rubber, 2 parts of sulfur, 1 part of compatibilizer ABS-g-MAH.

[0053] The preparation method of the surface-modified nano-boron fiber / chromium boride composite material comprises the following steps: dispersing 40 g of nano-boron fiber and 30 g of chromium boride in 230 g of N,N-dimethylformamide, and then adding 3 -23.4g of methacryloyloxypropyl tri(methoxyethoxy)silane, stirred and reacted at 70°C for 5 hours, then added trans,trans-1,3-butadiene-1 , 10g of 4-dicarboxylic acid, under a neon atmosphere, reflux and stir at 130°C for 18 hours, then centrifuge, wash with ethyl acetate 4 times, and dry in a vacuum oven at 86°C to constant weight.

[0054] The ...

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

No PUM Login to view more

Abstract

The invention discloses a wear-resistant packing which is prepared from the following raw materials in parts by weight: 10-15 parts of a surface-modified nano boron fiber / chromium boride composite material, 15-20 parts of an ionic anthradione-based fluorine-containing polycondensate, 25-30 parts of aminophenyl silicone oil, 30-40 parts of epoxy chloropropane rubber, 1-3 parts of a vulcanizing agent and 1-3 parts of a compatilizer. The invention further discloses a preparation method of the wear-resistant packing. The wear-resistant packing disclosed by the invention has the advantages of beinggood in wear resistance, high in flexibility, good in high temperature resistance and weather resistance, good in chemical stability and excellent in sealing performance and thermal conductivity.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a sealing material, in particular to a wear-resistant packing and a preparation method thereof. Background technique [0002] Packing, as a kind of sealing packing, is widely used in the non-mechanical sealing field due to its effective sealing performance and convenient maintenance. It is the main sealing product in the sealing field at present. It is usually braided by softer wires, usually with a square or rectangular cross-sectional area, and round strips are filled in the sealing cavity to achieve sealing. It has the advantages of easy processing, low price, reliable sealing, and simple operation. , has been used up to now, and the scope of application is getting wider and wider. Now packing is widely used in shaft seals of centrifugal pumps, compressors, vacuum pumps, mixers and ship propellers, piston pumps, reciprocating compressors, reciprocating shaft seals o...

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
IPC IPC(8): C08L71/03C08L83/08C08L79/02C08K9/06C08K7/06C08K3/38
CPCC08K2201/011C08L71/03C08L2201/02C08L2201/08C08L2205/035C08L83/08C08L79/02C08K9/06C08K7/06C08K3/38
Inventor 王传忠
Owner 王传忠
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap