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A kind of fiber fabric self-lubricating composite material and its preparation method and application

A composite material, fiber fabric technology, applied in the direction of fiber processing, fiber type, textile and papermaking, etc., can solve the problem of not meeting the requirements of use

Active Publication Date: 2022-06-28
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

However, with the harsh application conditions, pure PEEK-PTFE blended fiber fabrics can no longer meet the requirements of use

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 kind of fiber fabric self-lubricating composite material and its preparation method and application
  • A kind of fiber fabric self-lubricating composite material and its preparation method and application

Examples

Experimental program
Comparison scheme
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preparation example Construction

[0025] The present invention provides the preparation method of the fiber fabric self-lubricating composite material described in the above scheme, comprising the following steps:

[0026] According to the mass ratio of polyetherimide and solid lubricant in the fiber fabric self-lubricating composite material, the polyetherimide and solid lubricant are dispersed in N,N-dimethylformamide to obtain an impregnating liquid;

[0027] The PEEK-PTFE blended fiber fabric is dipped into the dipping solution, and after drying, the fiber fabric self-lubricating composite material is obtained.

[0028] In the present invention, without special instructions, the raw materials used are all commercially available commodities well known in the art.

[0029] According to the mass ratio of the polyetherimide and the solid lubricant in the fiber fabric self-lubricating composite material, the polyetherimide and the solid lubricant are dispersed into N,N-dimethylformamide to obtain an impregnatin...

Embodiment 1

[0048] The PEEK-PTFE blended fiber fabric was placed in petroleum ether for ultrasonic cleaning for 35 minutes, dried and then placed in a mixed solution with an acetone:ethanol volume ratio of 3:2 for ultrasonic cleaning for 35 minutes, and dried at 80 °C for 2 hours after taking it out;

[0049] Put PEI, DMF, Ta 4 C 3 T x , V 4 C 3 T x Mix according to the mass ratio of 30:80:0.4:0.4, stir magnetically at a speed of 1500rpm for 3h, then put the pretreated fiber fabric into the impregnating solution, and dry it in a vacuum oven at 110°C. Repeated impregnation and drying The operation is carried out until the content of the fabric accounts for 60% of the total content of the composite material, and the fiber fabric self-lubricating composite material is obtained.

Embodiment 2

[0051] The PEEK-PTFE blended fiber fabric was placed in petroleum ether for ultrasonic cleaning for 30 min, dried and then placed in a mixed solution with an acetone:ethanol volume ratio of 3:1 for ultrasonic cleaning for 33 min, taken out and dried at 90 °C for 1.5 h;

[0052] Put PEI, DMF, Ta 4 C 3 T x , V 4 C 3 T x Mix according to the mass ratio of 20:77:0.3:0.3, stir magnetically at 1400rpm for 2.5h, then put the pretreated fiber fabric into the dipping solution, and dry it in a vacuum oven at 100 °C. Repeat the dipping and drying. Dry operation until the content of the fabric accounts for 70% of the total content of the composite material to obtain a fiber fabric self-lubricating composite material.

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 provides a fiber fabric self-lubricating composite material and a preparation method and application thereof, belonging to the technical field of self-lubricating materials. Ta 4 C 3 T x and V 4 C 3 T x All are Mxene materials, have unique lamellar structure and excellent bearing capacity, the present invention uses both for the preparation of fiber fabric self-lubricating composite material, Ta 4 C 3 T x and V 4 C 3 T x Easy to slip between layers, reduce friction coefficient and wear rate, especially suitable for low temperature and heavy load environment. In the present invention, two-dimensional flake ZnNiAl‑LDH is used as a solid lubricant, and two-dimensional flake ZnNiAl‑LDH is prone to interlayer slippage, which reduces friction coefficient and wear rate, and ZnNiAl‑LDH can transfer stress very well, and is especially suitable for high-speed Work under high temperature conditions.

Description

technical field [0001] The invention relates to the technical field of self-lubricating materials, in particular to a fiber fabric self-lubricating composite material and a preparation method and application thereof. Background technique [0002] The self-lubricating fiber fabric composite material is a key component of the bearing, and its performance directly affects the service life of the bearing. At present, the commonly used self-lubricating fabrics are woven from polytetrafluoroethylene (PTFE) fibers with self-lubricating properties and other high-performance fibers. Among them, the blended polyetheretherketone (PEEK) / PTFE fabric has become an excellent self-lubricating gasket material due to its combination of the high bearing capacity of PEEK fibers and the outstanding lubricating properties of PTFE fibers. However, with the harsh application conditions, pure PEEK-PTFE blended fiber fabrics can no longer meet the application requirements. SUMMARY OF THE INVENTION...

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): D06M15/59D06M11/74D06M11/44D06M11/49D06M11/45D06M101/22D06M101/30
CPCD06M15/59D06M11/74D06M11/44D06M11/49D06M11/45D06M2101/22D06M2101/30
Inventor 李宋王齐华徐明坤张新瑞王廷梅陶立明
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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