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A composite fiber fabric anti-friction material and its preparation method and application

A technology of composite fiber fabrics and anti-friction materials, applied in fiber treatment, fiber types, chemical instruments and methods, etc., can solve problems such as adverse effects on comprehensive performance, and achieve the effects of preventing adverse effects, uniform thickness, and preventing uneven thickness

Active Publication Date: 2021-04-23
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

Therefore, no matter whether the lubricating component penetrates into the bonding surface or the adhesive penetrates into the lubricating surface, there is always an adverse effect on the overall performance.

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
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  • A composite fiber fabric anti-friction material and its preparation method and application
  • A composite fiber fabric anti-friction material and its preparation method and application
  • A composite fiber fabric anti-friction material and its preparation method and application

Examples

Experimental program
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Effect test

preparation example Construction

[0033] The invention provides a method for preparing a composite fiber fabric antifriction material, comprising the following steps:

[0034] The phenolic-acetal adhesive is prepared into a film by using a homogenizer to obtain a phenolic-acetal film;

[0035] Laying the phenolic-acetal adhesive film on the bonding surface of the composite fiber fabric, and pressing to obtain the composite fiber fabric treated with the adhesive film;

[0036] Mixing polytetrafluoroethylene emulsion and solid lubricant to obtain anti-friction material liquid;

[0037] The composite fiber fabric treated with the glue film is dipped into the anti-friction feed solution, dried and then hot-pressed to obtain the composite fiber fabric anti-friction material.

[0038] In the present invention, unless otherwise specified, the raw materials used are commercially available products well known in the art.

[0039] The invention adopts a glue leveler to prepare the phenolic-acetal adhesive into a film ...

Embodiment 1

[0062] a. Preparation of phenolic-acetal film

[0063] Paste the adhesive release cloth evenly and flatly on a clean 30cm×22cm rectangular glass plate, and place it on the horizontal glue leveling machine platform, so that the roller of the glue leveling machine is at one end of the rectangular glass plate, adjust the roller The gap between the release cloth and the release cloth is 0.10mm; take 100g of commercially available phenolic-acetal adhesive, dilute with 900g of ethyl acetate as a solvent to obtain a homogeneous mixed solution; pour the mixed solution on the release cloth and roll In front of the axis, turn on the glue homogenizer, make the roller spread the solution evenly on the entire glass plate at a speed of 0.001m / s; let it air for a few minutes to evaporate the surface solvent, repeat the above film spreading process 9 times (totally 10 times); after the glass plate is air-dried naturally at room temperature for 12h, it is peeled off, and its thickness is 0.12m...

Embodiment 2

[0085] a. Preparation of phenolic-acetal film

[0086] Paste the adhesive release cloth evenly and flatly on a clean 30cm×22cm rectangular glass plate, and place it on the horizontal glue leveling machine platform, so that the roller of the glue leveling machine is at one end of the rectangular glass plate, adjust the roller The gap between the release cloth and the release cloth is 0.12mm; take 100g of commercially available phenolic-acetal adhesive, add solvent absolute ethanol 400g to dilute to obtain a homogeneous mixed solution; pour the mixed solution on the release cloth and roll In front of the axis, turn on the homogenizer, so that the roller spreads the solution evenly on the entire glass plate at a speed of 0.01m / s; let it dry in the air for a few minutes to evaporate the surface solvent, and repeat the above film spreading process 5 times (6 times in total); after the glass plate is air-dried at room temperature for 24 hours, it is peeled off, and its thickness is ...

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
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Abstract

The invention relates to the technical field of anti-friction materials for self-lubricating joint bearings, in particular to a composite fiber fabric anti-friction material and its preparation method and application. The preparation method comprises the following steps: using a glue leveler to prepare the phenolic-acetal adhesive into a film to obtain a phenolic-acetal film; laying the phenolic-acetal film on the bonding surface of the composite fiber fabric, pressing Finally, the composite fiber fabric treated with the film is obtained; the polytetrafluoroethylene emulsion and the solid lubricant are mixed to obtain the anti-friction material liquid; the composite fiber fabric treated with the film film is immersed in the anti-friction material liquid, and heat Press to obtain composite fiber fabric antifriction material. The composite fiber fabric antifriction material prepared by the invention can effectively prevent the lubricating components from penetrating into the bonding surface and the adhesive from penetrating into the lubricating surface, and helps to improve the bonding strength of the composite fiber fabric antifriction material while achieving friction reduction.

Description

technical field [0001] The invention relates to the technical field of anti-friction materials for self-lubricating joint bearings, in particular to a composite fiber fabric anti-friction material and its preparation method and application. Background technique [0002] Self-lubricating joint bearing is a kind of spherical sliding bearing, which is composed of the inner and outer rings of the bearing and the composite fiber fabric anti-friction material pasted on the inner spherical surface of the outer ring. It has maintenance-free, self-lubricating, high-strength, high-load, corrosion-resistant series Among them, the composite fiber fabric antifriction material mainly refers to the composite fiber fabric based on PTFE (polytetrafluoroethylene) fiber, which is divided into lubricating surface and bonding surface, which are lubricating fiber (generally PTFE fiber) and reinforcing fiber rich The two sides of the set have unique technical advantages and huge application prospe...

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
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/42B32B27/18B32B27/08B32B27/32B32B27/02B32B27/34B32B27/28B32B27/36B32B17/04B32B17/10B32B27/04B32B5/02B32B5/08B32B7/08B32B7/022B32B33/00B32B37/10B32B37/06B32B38/08B32B38/00F16C23/04F16C33/04D06M15/256D06M11/53D06M11/74D06M11/79D06M11/80D06M101/22D06M101/30D06M101/32D06M101/36
CPCB32B5/02B32B5/08B32B7/08B32B27/12B32B27/18B32B27/42B32B33/00B32B37/06B32B37/10B32B38/00B32B38/08B32B2260/021B32B2260/046B32B2262/02B32B2262/0253B32B2262/0261B32B2262/0276B32B2262/101B32B2262/14B32B2307/50B32B2307/746B32B7/022D06M11/53D06M11/74D06M11/79D06M11/80D06M15/256D06M2101/22D06M2101/30D06M2101/32D06M2101/36D06M2200/40F16C23/043F16C33/04F16C2202/00F16C2202/50F16C2208/00F16C2220/00
Inventor 陶立明郭丽和王廷梅王齐华
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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