A flame retardant modification method of flame retardant solid lubricating material

A solid lubricating material and modification technology, applied in the field of flame retardant materials, can solve the problems of easy water absorption and deliquescence, poor compatibility with flame retardant matrix, poor compatibility with organic matter matrix, etc., and achieve simple flame retardant processing method and improve flame retardant performance. , the effect of a wide range of material sources

Active Publication Date: 2015-10-28
ZHEJIANG BAOSHENG RAILWAYNEW MATERIALS TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most intumescent flame retardant systems have problems such as deliquescence and poor compatibility with the flame retardant matrix.
For example, APP, an important component of the intumescent flame retardant system, is easy to absorb water and deliquescence, migrate out of the matrix, and has poor compatibility with the organic matrix
Especially when used as a flame retardant additive for solid lubricants, the poor compatibility between APP and solid lubricants will inevitably affect the flame retardant performance of the modified solid lubricants

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A flame retardant modification method of flame retardant solid lubricating material
  • A flame retardant modification method of flame retardant solid lubricating material
  • A flame retardant modification method of flame retardant solid lubricating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The flame retardant modification method of the flame retardant solid moist material of the present invention comprises the following steps:

[0028] (1) Preparation of melamine-formaldehyde prepolymer: Add melamine and 37% formaldehyde solution into a 500ml three-necked flask at a molar ratio of 1:3, use 10% Na 2 CO 3 The solution adjusts the pH of the mixture to 8, heats it in a water bath to 80°C and keeps it warm for 1 hour, and stirs all the time during the reaction process to finally obtain a melamine-formaldehyde prepolymer, that is, a layer of melamine-formaldehyde resin is formed on the surface of ammonium polyphosphate;

[0029] (2) Preparation of microcapsule ammonium polyphosphate: Disperse 60g of ammonium polyphosphate into 150ml of ethanol, add the solution after dispersion into a three-necked flask, and add the melamine formaldehyde prepolymer solution prepared in step (1) at the same time, dilute Adjust the pH of the mixture to 4 with sulfuric acid, heat...

Embodiment 2

[0036] The flame retardant modification method of the flame retardant solid lubricating material of the present invention comprises the following steps:

[0037] (1) Preparation of melamine-formaldehyde prepolymer: Add melamine and 37% formaldehyde solution into a 500ml three-necked flask at a molar ratio of 1:3, and use 10% Na 2 CO 3 The solution adjusts the pH of the mixture to 9, heats it in a water bath to 80°C and keeps it warm for 1 hour, and stirs all the time during the reaction process to finally obtain a melamine-formaldehyde prepolymer, that is, a layer of melamine-formaldehyde resin is formed on the surface of ammonium polyphosphate;

[0038] (2) Preparation of microcapsule ammonium polyphosphate: Disperse 60g of ammonium polyphosphate into 150ml of ethanol, add the solution after dispersion into a three-necked flask, and add the melamine formaldehyde prepolymer solution prepared in step (1) at the same time, dilute Adjust the pH of the mixture to 4.5 with sulfuri...

Embodiment 3

[0045] The flame retardant modification method of the flame retardant solid lubricating material of the present invention comprises the following steps:

[0046] (1) Preparation of melamine-formaldehyde prepolymer: Add melamine and 37% formaldehyde solution into a 500ml three-necked flask at a molar ratio of 1:3, and use 10% Na 2 CO 3 The solution adjusts the pH of the mixture to 10, heats it in a water bath to 80°C and keeps it warm for 1 hour, and stirs all the time during the reaction process to finally obtain a melamine-formaldehyde prepolymer, that is, a layer of melamine-formaldehyde resin is formed on the surface of ammonium polyphosphate;

[0047] (2) Preparation of microcapsule ammonium polyphosphate: Disperse 60g of ammonium polyphosphate into 150ml of ethanol, add the solution after dispersion into a three-necked flask, and add the melamine formaldehyde prepolymer solution prepared in step (1) at the same time, dilute Adjust the pH of the mixture to 5 with sulfuric...

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
Login to view more

PUM

PropertyMeasurementUnit
solubility (mass)aaaaaaaaaa
solubility (mass)aaaaaaaaaa
solubility (mass)aaaaaaaaaa
Login to view more

Abstract

The invention relates to a flame-retarded modifying method for a flame-retarded solid lubricating material. The method adds melamine formaldehyde resin microcapsule ammonium polyphosphate powder to a solid lubricating material to obtain the flame-retarded solid lubricating material. The method comprises the following steps: (1) adopting melamine to react with a formaldehyde solution to obtain a prepolymer, then dispersing the prepolymer into an ethanol solution containing ammonium polyphosphate, and controlling a reaction condition to form a layer of melamine formaldehyde resin on the surface of ammonium polyphosphate; (2) carrying out melt blending for dried microcapsule ammonium polyphosphate and pentaerythritol and the solid lubricating material to obtain a solid mixture; (3) carrying out hot-press forming on the solid mixture at the temperature of 140-150 DEG C. The method is simple in technology and is wide in source of materials, and the obtain material has a certain flame retardant characteristic and can be used for various mechanical lubrication needing maintenance.

Description

technical field [0001] The invention relates to a flame-retardant modification method of a flame-retardant solid lubricating material, which belongs to the technical field of flame-retardant materials. Background technique [0002] Solid lubricating materials can be used in harsh environments such as high and low temperature, high vacuum, strong radiation, dust, humidity, sea water, etc.; can be used in environmental conditions where lubricating oil cannot be used; light weight, small size, unlike lubricating oil Requires seals, storage tanks and liquid supply systems; reduces maintenance workload and expense. Various polymer materials such as polytetrafluoroethylene, polyethylene, nylon, polyoxymethylene, polyphenylene sulfide, etc. can be used as solid lubricating materials. These polymer materials are generally added as base materials in addition to being used as lubricating additives in powder form. Other solid lubricating additives (such as molybdenum disulfide, graphi...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C10M125/24C09C1/00C09C3/10C10N50/08
Inventor 黄坤黄樟华
Owner ZHEJIANG BAOSHENG RAILWAYNEW MATERIALS TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap