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Preparation method of high-speed working condition self-lubricating fabric gasket composite material

A composite material, self-lubricating technology, applied in the field of composite material and self-lubricating, can solve the problems of wear resistance, reduced lubricating performance, increased load, etc.

Active Publication Date: 2020-02-28
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Application No. 201910758523.5 discloses a preparation method of a self-lubricating fabric liner composite material with frictional heat accumulation under interface consumption and high-speed conditions. The self-lubricating fabric liner under high-speed conditions is prepared by adding lamellar basalt scales, but due to In the case of basalt flakes alone, the amount of self-lubricating liner wear is sensitive to the increase in load
Different from the light load condition (10-20MPa), the wear resistance and lubrication performance of this type of self-lubricating liner are significantly reduced under the heavy load condition (30-40MPa). How to improve this type of high-speed self-lubrication liner? Liner performance faces great challenges

Method used

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  • Preparation method of high-speed working condition self-lubricating fabric gasket composite material
  • Preparation method of high-speed working condition self-lubricating fabric gasket composite material
  • Preparation method of high-speed working condition self-lubricating fabric gasket composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Preparation of modified basalt scales: soak the commercially available alkaline basalt in 33% silane coupling agent 3-aminopropyltriethoxysilane (KH-550) for 60min, and centrifuge at 1000r / min , dried at 80°C, and passed through a 325-mesh sieve to obtain modified basalt scales;

[0068] Self-lubricating fabric dipping solution A: Take 100g of phenolic resin, disperse it into 900mL of mixed solvent and dilute (V 乙醇 :V 丙酮 =1:1) Obtain self-lubricating fabric impregnating liquid, ultrasonic 0.5h for later use;

[0069] Self-lubricating fabric dipping solution B: Take 100g of phenolic resin, disperse it into 900mL of mixed solvent and dilute (V 乙醇 :V 丙酮=1:1) to obtain a self-lubricating fabric impregnating solution; take 0.5g (0.5% phenolic resin mass fraction) of basalt scales and disperse them in the self-lubricating fabric impregnating solution, and ultrasonicate for 0.5h for later use;

[0070] Self-lubricating fabric dipping solution C: Take 100g of phenolic resin...

Embodiment 2

[0075] Preparation of modified basalt scales: soak the commercially available alkaline basalt in 33% silane coupling agent 3-aminopropyltriethoxysilane (KH-550) for 60min, and centrifuge at 1000r / min , dried at 80°C, and passed through a 325-mesh sieve to obtain modified basalt scales;

[0076] Self-lubricating fabric dipping solution A: Take 100g of phenolic resin, disperse it into 900mL of mixed solvent and dilute (V 乙醇 :V 丙酮 =1:1) Obtain self-lubricating fabric impregnating liquid, ultrasonic 0.5h for later use;

[0077] Self-lubricating fabric dipping solution C: Take 100g of phenolic resin, disperse it into 900mL of mixed solvent and dilute (V 乙醇 :V 丙酮 =1:1) to obtain a self-lubricating fabric impregnating solution; take 0.5g (mass fraction of phenolic resin 0.5%) of basalt scales and 3g of fluorinated graphite (mass fraction of phenolic resin 3%) and disperse them in the self-lubricating fabric impregnating solution, ultrasonic 0.5 h standby;

[0078] Take three pie...

Embodiment 3

[0083] Commercially available basalt flakes prepared from alkaline basalt were pulverized. Soak basalt scales in 33% silane coupling agent 3-aminopropyltriethoxysilane (KH-550) for 60 minutes, centrifuge at 1000r / min, dry at 80°C, pass through 325 mesh Sieve to obtain modified basalt scales.

[0084] Self-lubricating fabric dipping solution A: Take 100g of phenolic resin, disperse it into 900ml of mixed solvent and dilute it (V 乙醇 :V 丙酮 =1:1) Obtain self-lubricating fabric impregnating liquid, ultrasonic 0.5h for later use;

[0085] Self-lubricating fabric dipping solution C: Take 100g of phenolic resin, disperse it into 900ml of mixed solvent and dilute it (V 乙醇 :V 丙酮 =1:1) to obtain a self-lubricating fabric impregnating solution; take 0.5g (mass fraction of phenolic resin 0.5%) of basalt scales and 3g of fluorinated graphite (mass fraction of phenolic resin 3%) and disperse them in the self-lubricating fabric impregnating solution, ultrasonic 0.5 h standby;

[0086] T...

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Abstract

The invention discloses a preparation method of a high-speed working condition self-lubricating fabric gasket composite material, and the method comprises the following steps: dispersing phenolic resin in an organic solvent, and ultrasonically dispersing graphite fluoride and lamellar basalt flakes in the organic solvent to obtain a self-lubricating fabric impregnating solution; repeatedly impregnating a blend fiber fabric subjected to plasma pretreatment in the self-lubricating fabric impregnation liquid, and drying; and finally, adhering the fabric to the surface of a metal base material byusing the phenolic resin, preserving heat, curing and forming to obtain the self-lubricating gasket composite material. The phenolic resin is used as matrix resin, the polytetrafluoroethylene-polyisophthaloyl metaphenylene diamine blended fabric is used as a reinforcing phase, the bearing capacity of a self-lubricating gasket under the high-speed working condition is greatly improved based on thesynergistic interface physical-chemical effect of the graphite fluoride and the lamellar basalt flakes, the friction coefficient between the self-lubricating gasket and a friction pair is reduced, andthe friction coefficient of the self-lubricating gasket is improved. And the wear resistance and the lubricating property of the self-lubricating gasket are obviously improved, so that the service life of a corresponding self-lubricating knuckle bearing is greatly prolonged.

Description

technical field [0001] The invention relates to a self-lubricating fabric liner composite material, in particular to a preparation method for a self-lubricating fabric liner composite material used in high-speed working conditions, and belongs to the technical field of composite materials and self-lubricating technology. Background technique [0002] With the development of my country's national defense industry, joint bearings are widely used in rotor systems, control systems, Key parts such as landing gear, rudder, transmission system, aero-engine and steering mechanism of high-speed vehicles. Due to the higher and higher requirements for engine power and speed indicators, the service performance requirements for wear-resistant components such as self-lubricating liners used in spherical plain bearings are also becoming more and more stringent. Practical application conditions often require bearings under high-speed conditions to have a certain load-carrying capacity to tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/30B32B27/28B32B15/08B32B15/085B32B15/14B32B27/06B32B37/12B32B37/06B32B37/10D06M15/41D06M11/79D06M11/74D06M10/00D06M101/22
CPCB32B5/02B32B5/08B32B15/08B32B15/085B32B15/14B32B37/06B32B37/10B32B37/12B32B2260/021B32B2260/046B32B2262/02B32B2262/0253B32B2262/14B32B2307/554D06M10/00D06M11/74D06M11/79D06M15/41D06M2101/22D06M2200/40
Inventor 赵鑫张招柱姜葳王梦可李佩隆杨明明袁军亚
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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