Graphene/carbon fiber enhanced nylon composite wear-resistant material and preparation method and application thereof

A technology of wear-resistant materials and graphene, which is applied in the field of graphene/carbon fiber reinforced nylon composite wear-resistant materials and its preparation, can solve the problems of inability to realize graphene dispersion, failure to meet the basic requirements of bearings, high friction coefficient and wear, and achieve Reduce equipment operating noise and maintenance costs, excellent self-lubrication, good self-lubricating effect

Inactive Publication Date: 2017-09-22
长沙五犇新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they all have the same defect: 1) Since graphene and nylon are directly blended, the dispersion of graphene in nylon resin cannot be realized; 2) the above method mainly considers improving the thermal conductivity of nylon, and does not involve how to improve the resistance of nylon. The problems of abrasiveness and mechanical properties, and the use of the obtained materials are not clear
However, its friction coefficient and wear are relatively high, which still cannot meet the basic requirements of bearings.

Method used

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  • Graphene/carbon fiber enhanced nylon composite wear-resistant material and preparation method and application thereof
  • Graphene/carbon fiber enhanced nylon composite wear-resistant material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
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preparation example Construction

[0036] Reference example 1 for preparation of high viscosity nylon resin

[0037] The PA66 is heated and reacted for 10h and cooled for 6h under the conditions of 170℃ and vacuum degree of -0.08MPa to obtain relative characteristics.

[0038] PA66-1 with a viscosity of 3.50.

[0039] Reference example 2 for preparation of high viscosity nylon resin

[0040] The PA66 is heated and reacted for 12h and cooled for 8h under the conditions of 190℃ and vacuum degree of -0.08MPa to obtain relative characteristics.

[0041] PA66-2 with a viscosity of 4.0.

[0042] Reference example 3 for preparation of high viscosity nylon resin

[0043] The relative viscosity of PA1010 is obtained by heating and reacting for 12h and cooling for 8h under the condition of 190℃ and vacuum degree of -0.08MPa.

[0044] For PA1010 of 4.2.

Embodiment 1～10

[0046] The raw material composition of the graphene / carbon fiber reinforced nylon composite wear-resistant material in Examples 1-10 is shown in Table 1:

[0047] Table 1 The raw material composition of the graphene / carbon fiber reinforced nylon composite wear-resistant material in Examples 1-10

[0048]

[0049] Note: "-" in the table means not added.

[0050] Preparation method of graphene / carbon fiber reinforced nylon composite wear-resistant material Examples 1-10

[0051] (1) According to the weight parts of the raw materials in Examples 1-10 in Table 1, the inorganic solid lubricant and the coupling agent were mixed and coupled for 5 minutes at 60°C and a stirring speed of 400 r / min. , Get coupled inorganic solid lubricant;

[0052] (2) Measure graphene / nylon 6 masterbatch, organic lubricant, coupled inorganic solid lubricant and antioxidant obtained in step (1) according to the weight parts of each raw material in Examples 1-10 in Table 1, respectively Add to the mixer and mix ...

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Abstract

Disclosed are a graphene/carbon fiber enhanced nylon composite wear-resistant material and a preparation method and application thereof. The material includes a nylon resin, carbon fibers, graphene/nylon 6 master batch, an organic lubricant, an inorganic solid lubricant, a coupling agent and an anti-oxidant. The method comprises: (1) coupling the inorganic solid lubricant with the coupling agent to obtain a coupled inorganic solid lubricant; (2) mixing graphene/nylon 6 master batch, the organic lubricant, the coupled inorganic solid lubricant and the anti-oxidant; and (3) sending the nylon resin and a mixing auxiliary agent to an extruder, adding carbon fibers, performing mixing extrusion, and performing strap stretching, cooling, drying, and grain-sized dicing to obtain the material. The material is used for lubricating bearings and joint bearings of automobiles, and transmission gears of textile, food and packaging machinery or joint bearings of robots. The material is high in strength, good in thermal conductivity, self-lubrication, and wear resistance, and is long in service life. The method is simple and is suitable for industrial production.

Description

Technical field [0001] The invention relates to a wear-resistant material and a preparation method and application, in particular to a graphene / carbon fiber reinforced nylon composite wear-resistant material, and a preparation method and application. Background technique [0002] Transmission components are the key components of mechanical equipment. In the early last century, most of my country’s mechanical transmission components were made of metal materials. Since the 1990s, it was discovered that cast nylon 6 gears had self-lubricating properties. It needs butter lubrication, and its noise is much lower than that of metal gears. The transmission gears of textile machinery and other light industrial machinery have begun to use cast nylon 6, which reduces the noise in the textile workshop; and in the manufacturing of food and medical machinery, the use of poly Formaldehyde is used for gears and lubricating bearings. Although these materials have excellent wear resistance and sel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L27/18C08L83/04C08K13/06C08K9/06C08K3/04C08K3/30C08K5/20C08K5/526C08K7/06C08J3/22C08J5/04B29C47/92C09K5/14B29C48/92
CPCC08L77/06B29C48/92B29C2948/92704C08J3/226C08J5/042C08J2377/06C08J2477/02C08K2003/3009C08L2201/08C08L2205/02C08L2205/03C09K5/14C08L77/02C08L27/18C08L83/04C08K13/06C08K9/06C08K3/04C08K3/30C08K5/20C08K5/526C08K7/06
Inventor 陈如意邓凯桓
Owner 长沙五犇新材料科技有限公司
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