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Preparation method of biomass carbon nano powder/resin composite material

A technology of resin composite materials and nanopowders, applied in the field of materials, to achieve the effects of stable friction performance, improved absorption and utilization, and low reaction temperature

Inactive Publication Date: 2019-06-28
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, research on carbon nanopowder reinforced resin-based materials has mainly focused on four aspects: resin content and type, fiber surface treatment and modification, nanopowder structure, and nano / micro particle reinforcement. dry friction condition

Method used

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  • Preparation method of biomass carbon nano powder/resin composite material
  • Preparation method of biomass carbon nano powder/resin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1: Wash the pomelo peel of the biomass prefabricated body to remove surface impurities, and cut it into block A with a diameter of 5 mm;

[0039] Step 2: Take 1g of block A and dry at 0°C for 36 hours to obtain block B;

[0040] Step 3: Add 50ml of phosphotungstic acid solution with a concentration of 80g / L and 40ml of ethanol solution to the block B, and magnetically stir for 1.5h to form a mixed solution C;

[0041] Step 4: Transfer the mixed liquid C to a homogeneous reactor lined with polytetrafluoroethylene at a filling ratio of 40%, seal it and put it into a homogeneous reactor, and heat it up from room temperature to Hydrothermal reaction at 180°C for 24 hours, then naturally cooled to room temperature to obtain precursor D;

[0042]Step 5: After washing and filtering the precursor D, mix it evenly according to the mass ratio of precursor D: KOH of 1:3, then move it to a tube atmosphere furnace, and raise the temperature at a rate of 10°C / min under an argon...

Embodiment 2

[0055] Step 1: Wash the pomelo peel of the biomass prefabricated body to remove surface impurities, and cut it into a block A with a diameter of 3.5 mm;

[0056] Step 2: Take 1g of block A and dry at -20°C for 12 hours to obtain block B;

[0057] Step 3: Add 80ml of phosphotungstic acid solution with a concentration of 12.5g / L and 60ml of ethanol solution to the block B, and magnetically stir for 2.5h to form a mixed solution C;

[0058] Step 4: Transfer the mixed solution C to a homogeneous reactor lined with polytetrafluoroethylene at a filling ratio of 50%, seal it and put it into a homogeneous reactor, and heat it up from room temperature to Hydrothermal reaction at 150°C for 36 hours, then naturally cooled to room temperature to obtain precursor D;

[0059] Step 5: After washing and filtering the precursor D, mix it evenly according to the mass ratio of precursor D:KOH of 0.5:1, then move it to a tube atmosphere furnace, and raise the temperature at 10°C / min under an arg...

Embodiment 3

[0067] Step 1: Wash the pomelo peel of the biomass prefabricated body to remove surface impurities, and cut it into block A with a diameter of 4 mm;

[0068] Step 2: take 1 g of block A and dry at 20°C for 20 hours to obtain block B;

[0069] Step 3: Add 60ml of phosphotungstic acid solution with a concentration of 30g / L and 50ml of ethanol solution to block B, and magnetically stir for 2 hours to form a mixed solution C;

[0070] Step 4: Transfer the mixed solution C to a homogeneous reactor lined with polytetrafluoroethylene at a filling ratio of 45%, seal it and put it into a homogeneous reactor, and heat it up from room temperature to Hydrothermal reaction at 200°C for 12 hours, then naturally cooled to room temperature to obtain precursor D;

[0071] Step 5: After washing and filtering the precursor D, mix it evenly according to the mass ratio of precursor D:KOH of 1:1.5, then move it to a tube atmosphere furnace, and heat it up at 10°C / min under an argon protective atmo...

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Abstract

The invention provides a preparation method of a biomass carbon nano powder / resin composite material. The preparation method comprises the steps that a solid superacid solution and an ethanol solutionare added into a biomass preform to form a mixed solution C; the mixed solution C is transferred into a homogeneous reaction kettle for a hydrothermal reaction to obtain a precursor D; the precursorD is evenly mixed with KOH after washing and suction filtration, and then the mixture is transferred into a tubular atmosphere furnace to obtain a carbonized product E; the carbonized product E is washed, dried and grinded to obtain a carbon nano powder material F; resin is dissolved in absolute ethyl alcohol to obtain a solution G; organic fiber is added into water to carry out defibering to obtain an organic fiber solution H; the carbon nano powder F is uniformly laid on the bottom of a beaker, and then an organic fiber solution H is added into the beaker for suction filtration and drying toobtain a sample wafer I; the resin in the solution G is added into the sample wafer I to obtain a preform J; hot-press molding is carried out on the preform J to obtain the biomass carbon nano powder / resin composite material. The method is simple in technological process, the reaction temperature is low, the reaction time is short, subsequent treatment is not needed, and the method is environmentally friendly.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a method for preparing a biomass carbon nano powder / resin composite material. Background technique [0002] Wet friction materials refer to friction materials that work in lubricating media (mainly lubricating oil), and are mainly used in wet transmission systems such as automatic transmissions, differentials, torque managers and synchronizers. On the one hand, this type of material needs to withstand harsh working conditions such as high-speed shearing and compression, friction, high-temperature impact, and high-temperature lubricating oil erosion; on the other hand, the wet transmission system mainly adopts a multi-disk structure with compact space, and the friction plates are rings. Shape, composed of friction material and core plate, the thickness of friction material is only 0.40-2.00mm. [0003] Wet friction materials mainly include cork rubber-based friction materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14
Inventor 黄剑锋钟辛子曹丽云李文斌宝乐尔邵宇飞张可炘黄青青
Owner SHAANXI UNIV OF SCI & TECH
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