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Nylon nano compound material for sugar machine, preparation method and application thereof

A nano-composite material and nano-material technology, which is applied in the field of nano-modified cast nylon material and its preparation, can solve the problems of unsatisfactory heat resistance, dimensional stability and wear resistance of ordinary MC nylon, so as to improve the comprehensive performance, cost reduction effect

Inactive Publication Date: 2011-02-02
GUANGDONG IND TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the heat resistance, dimensional stability and wear resistance of ordinary MC nylon are still not very ideal

Method used

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  • Nylon nano compound material for sugar machine, preparation method and application thereof
  • Nylon nano compound material for sugar machine, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 Shown, be used for the preparation method of the nylon nanocomposite material of sugar extraction machine, comprise the steps:

[0031] (1) 270g of nano-calcium carbonate (the particle size of nano-calcium carbonate is 15-100nm), 270g of nano-gadolinium oxide rare earth (the particle size of nano-gadolinium oxide rare-earth is 40-100nm), 270g of nano-carbon black (the particle size of nano-carbon black 20-60nm), high-speed stirring and mixing, heating to about 50°C, adding 5g of titanate coupling agent (NDZ109) and 3g of silane coupling agent (KH-550), and continuing to stir for 10 minutes to obtain pretreated nanomaterials .

[0032] (2) Take 500g of caprolactam and heat it to melt, add 270g of epoxy resin (bisphenol A epoxy resin E-51) and mix, the temperature is 110-120°C, vacuumize and dehydrate for 15 minutes, add the pretreated nano Materials, stirred evenly, ultrasonically dispersed for 30 minutes, ultrasonic frequency 35KHZ, to obtain a unifor...

Embodiment 2

[0037] (1) Weigh 2.25Kg of nano-calcium carbonate (the particle size of nano-calcium carbonate is 15-100nm), 375g of nano-gadolinium oxide rare earth (the particle size of nano-gadolinia rare-earth is 40-100nm), stir and mix at a high speed, and heat up to about 50°C , add titanate coupling agent (NDZ109) 32g and silane coupling agent (KH-550) 21g, continue stirring for 20 minutes to obtain pretreated nanomaterials.

[0038] (2) Take 3Kg of caprolactam and heat and melt it, add 2.25Kg of epoxy resin (bisphenol A type epoxy resin E-51) to mix, the temperature is 110~120°C, vacuumize and dehydrate for 20 minutes, add the pretreated product of step (1) Nanomaterials, stirred evenly, ultrasonically dispersed for 60 minutes, ultrasonic frequency 65KHZ, to obtain a uniformly dispersed mixture of nanomaterials and epoxy resin.

[0039] (3) Add 72kg of caprolactam and 375g of colloidal graphite (the particle size of colloidal graphite is 1-4μm) into the reaction kettle, heat to 135-14...

Embodiment 3

[0043] (1) 1.12Kg of nano-calcium carbonate (the particle diameter of nano-calcium carbonate is 15~100nm), 280g of nanometer gadolinium oxide rare earth (the particle diameter of nanometer gadolinium oxide rare earth is 40~100nm), nanometer erbium oxide rare earth (the particle size of nanometer erbium oxide rare earth Particle size is 40-100nm) 168g, nano-carbon black 560g (nano-carbon black particle size is 20-60nm), high-speed stirring and mixing, heating up to about 50°C, adding titanate coupling agent (NDZ109) 19.2g and silane Coupling agent (KH-550) 12.7g, continue stirring for 15 minutes to obtain pretreated nanomaterials.

[0044] (2) Take 2.8Kg of caprolactam and heat to melt, add 1.12Kg of epoxy resin (bisphenol A epoxy resin E-51) and mix, the temperature is 110-120°C, vacuum dehydration for 20 minutes, add step (1) pretreatment The nanomaterials were stirred evenly, ultrasonically dispersed for 45 minutes, and the ultrasonic frequency was 50KHZ, and a uniformly dis...

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Abstract

The invention discloses a nylon nano-composite material for sugar press machinery, as well as a preparation method thereof. The invention adopts an anionic ring-opening polymerization process to produce the nylon nano-composite material, and discloses an application of the nylon nano-composite material in manufacturing presser bearing bushes of sugar factories, sliders of press roll universal couplings or low-speed high-load mechanical transmission parts. The nylon nano-composite material has the advantages of high heat resistance, good dimension stability, as well as excellent impact resistance and wear resistance. The preparation method compounds cheap nanometer calcium carbonate, nanometer carbon black and nanometer rare earth so as to achieve the aim of synergetic enhancement, which further improves the comprehensive properties of the material and can reduce the cost of the material at the same time.

Description

technical field [0001] The invention relates to the technical field of material science, in particular to a nano-modified cast nylon material used for bearing bushes and sliders of a sugar press, a preparation method and application thereof. Background technique [0002] Monomer casting nylon (monomer casting nylon), referred to as MC nylon, is to directly cast molten caprolactam monomer, basic catalyst, activator, etc. into a mold preheated to a certain temperature under normal pressure for rapid polymerization. Solidified engineering plastics. MC nylon has the advantages of large molecular weight, high crystallinity, 1.5 times higher strength than ordinary nylon, light weight, about 1 / 8 of copper density, self-lubrication, wear resistance, shock resistance and sound absorption, oil resistance, weak acid and alkali resistance, etc. Its main purpose is to replace metal to make mechanical parts such as bearings, bearing bushes and gears. However, MC nylon also has some disa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L63/00C08K9/04C08K3/04C08G69/24C08G69/18F16D3/16
Inventor 谭寿再王玫瑰孙永红张仁杰冯国禧
Owner GUANGDONG IND TECHN COLLEGE