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Nanodiamond powder-filled nylon composite material and preparation method thereof

A technology of nano-diamond powder and nylon composite materials, which is applied in the field of nylon composite materials, can solve the problems of not increasing the comprehensive performance of the resin, and achieve the effects of good dimensional stability, widening the application range, and low water absorption

Active Publication Date: 2015-03-04
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] There is no report of increasing the overall performance of the resin by adding nano-diamond powder in the nylon resin

Method used

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  • Nanodiamond powder-filled nylon composite material and preparation method thereof
  • Nanodiamond powder-filled nylon composite material and preparation method thereof
  • Nanodiamond powder-filled nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Pretreatment of nano-diamond powder: in the autoclave, add 1kg nano-diamond powder and 5L concentrated nitric acid, stir for 5 hours at 180°C, filter, wash with deionized water until neutral; after removing trace impurities, put the Nano-diamond powder and 5L sodium hydroxide solution (concentration 10%) are added in autoclave, 100 ℃, stir 5 hours, filter, wash to neutrality with deionized water, dry; Combined agent KH550 ethanol solution (concentration: 0.5%), soak for 30 minutes, filter and dry. Keep the processed diamond powder sealed.

[0030] (2) Add 79 parts of caprolactam, 0.6 part of processed nano-diamond powder, 20 parts of deionized water, 0.2 part of antioxidant 1098, 0.2 part of antioxidant 168 in the reactor, and seal the reactor. Change the vacuum, flush nitrogen 3 times, start the stirring device, adjust the temperature to 200°C, react for 2 hours, and keep the pressure.

[0031] (3) Raise the reaction temperature to 250° C., keep the pressure at 2...

Embodiment 2

[0033] (1) Pretreatment of nano-diamond powder: in the autoclave, add 1kg nano-diamond powder and 8L concentrated nitric acid, stir for 5 hours at 180°C, filter, wash with deionized water until neutral; after removing trace impurities, put the Nano-diamond powder and 8L sodium hydroxide solution (concentration 10%) are added in autoclave, 100 ℃, stir 5 hours, filter, wash to neutrality with deionized water, dry; Combined agent KH550 ethanol solution (concentration: 0.5%), soak for 30 minutes, filter and dry. Keep the processed diamond powder sealed.

[0034] (2) Add 94.4 parts of nylon 66 salt, 5 parts of processed nano-diamond powder in the reactor, 0.1 part of adipic acid, 0.2 part of antioxidant 1098, 0.3 part of antioxidant 168, seal the reactor . Change the vacuum, flush nitrogen 3 times, start the stirring device, adjust the temperature to 230°C, react for 2 hours, and keep the pressure.

[0035] (3) Raise the reaction temperature to 285° C., keep the pressure at 2 MP...

Embodiment 3

[0037] (1) Pretreatment of nano-diamond powder: in the autoclave, add 2kg nano-diamond powder and 10L concentrated nitric acid, stir for 5 hours at 180°C, filter, wash with deionized water until neutral; after removing trace impurities, put the Nano-diamond powder and 10L sodium hydroxide solution (concentration 10%) are added in autoclave, 100 ℃, stir 5 hours, filter, wash to neutrality with deionized water, dry; Add 10L of silane Coupling agent KH550 ethanol solution (concentration: 0.5%), soak for 30 minutes, filter and dry. Keep the processed diamond powder sealed.

[0038] (2) Add 98.2 parts of amino undecanoic acid, 0.5 part of n-butyl titanate, 0.1 part of processed nano-diamond powder, 0.1 part of antioxidant 1098, 0.1 part of antioxidant 168 in the reactor , 1 part of undecanedioic acid, sealed reaction kettle. Change the vacuum, flush nitrogen three times, start the stirring device, adjust the temperature to 180°C, react for 1 hour, and keep the pressure.

[0039]...

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Abstract

The invention belongs to the technological field of nylon composite materials and discloses a nanodiamond powder-filled nylon composite material and a preparation method thereof. The nanodiamond powder-filled nylon composite material comprises the following components in part by weight: 73-99.7 parts of nylon monomer, 0.1-5 parts of pretreated nanodiamond powder, 0-20 parts of deionized water, 0-0.5 parts of catalyst, 0.2-0.5 parts of antioxidant and 0-1 part of molecular weight regulating agent. The invention further discloses the preparation method of the nanodiamond powder-filled nylon composite material. Under the condition that the adding amount of the diamond powder is very small, the hardness and the strength of the nanodiamond powder-filled nylon composite material can be significantly improved and the wear resistance is greatly improved; and the nanodiamond powder-filled nylon composite material has the characteristics of good heat resistance, toughness and dimensional stability, low water absorption and the like, Therefore, the application range of the nanodiamond powder-filled nylon composite material is greatly widened.

Description

technical field [0001] The invention belongs to the technical field of nylon composite materials, and in particular relates to a nylon composite material filled with nano-diamond powder and a preparation method thereof. Background technique [0002] Since the middle of the 20th century, the development of new materials has sprung up and is changing with each passing day. Composite materials are widely used in various fields of aerospace and people's daily production and life due to their excellent comprehensive performance and designability of performance. Due to the special structure of materials, nanomaterials have small size effects, surface and interface effects, etc., so that they have many different physical and chemical properties from traditional materials. [0003] Nanodiamond is a diamond powder with an average particle size of nanometer scale. It has the dual characteristics of nanoparticles and superhard materials, and has a huge specific surface area (300-400m ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G69/14C08G69/26C08G69/08C08K13/06C08K9/06C08K9/02C08K3/04C08G69/16C08G69/28
Inventor 李万里
Owner HEFEI GENIUS NEW MATERIALS